/*!
 * jquery javascript library v3.5.1
 * https://jquery.com/
 *
 * includes sizzle.js
 * https://sizzlejs.com/
 *
 * copyright js foundation and other contributors
 * released under the mit license
 * https://jquery.org/license
 *
 * date: 2020-05-04t22:49z
 */
( function( global, factory ) {

    "use strict";

    if ( typeof module === "object" && typeof module.exports === "object" ) {

        // for commonjs and commonjs-like environments where a proper `window`
        // is present, execute the factory and get jquery.
        // for environments that do not have a `window` with a `document`
        // (such as node.js), expose a factory as module.exports.
        // this accentuates the need for the creation of a real `window`.
        // e.g. var jquery = require("jquery")(window);
        // see ticket #14549 for more info.
        module.exports = global.document ?
            factory( global, true ) :
            function( w ) {
                if ( !w.document ) {
                    throw new error( "jquery requires a window with a document" );
                }
                return factory( w );
            };
    } else {
        factory( global );
    }

// pass this if window is not defined yet
} )( typeof window !== "undefined" ? window : this, function( window, noglobal ) {

// edge <= 12 - 13+, firefox <=18 - 45+, ie 10 - 11, safari 5.1 - 9+, ios 6 - 9.1
// throw exceptions when non-strict code (e.g., asp.net 4.5) accesses strict mode
// arguments.callee.caller (trac-13335). but as of jquery 3.0 (2016), strict mode should be common
// enough that all such attempts are guarded in a try block.
    "use strict";

    var arr = [];

    var getproto = object.getprototypeof;

    var slice = arr.slice;

    var flat = arr.flat ? function( array ) {
        return arr.flat.call( array );
    } : function( array ) {
        return arr.concat.apply( [], array );
    };


    var push = arr.push;

    var indexof = arr.indexof;

    var class2type = {};

    var tostring = class2type.tostring;

    var hasown = class2type.hasownproperty;

    var fntostring = hasown.tostring;

    var objectfunctionstring = fntostring.call( object );

    var support = {};

    var isfunction = function isfunction( obj ) {

        // support: chrome <=57, firefox <=52
        // in some browsers, typeof returns "function" for html <object> elements
        // (i.e., `typeof document.createelement( "object" ) === "function"`).
        // we don't want to classify *any* dom node as a function.
        return typeof obj === "function" && typeof obj.nodetype !== "number";
    };


    var iswindow = function iswindow( obj ) {
        return obj != null && obj === obj.window;
    };


    var document = window.document;



    var preservedscriptattributes = {
        type: true,
        src: true,
        nonce: true,
        nomodule: true
    };

    function domeval( code, node, doc ) {
        doc = doc || document;

        var i, val,
            script = doc.createelement( "script" );

        script.text = code;
        if ( node ) {
            for ( i in preservedscriptattributes ) {

                // support: firefox 64+, edge 18+
                // some browsers don't support the "nonce" property on scripts.
                // on the other hand, just using `getattribute` is not enough as
                // the `nonce` attribute is reset to an empty string whenever it
                // becomes browsing-context connected.
                // see https://github.com/whatwg/html/issues/2369
                // see https://html.spec.whatwg.org/#nonce-attributes
                // the `node.getattribute` check was added for the sake of
                // `jquery.globaleval` so that it can fake a nonce-containing node
                // via an object.
                val = node[ i ] || node.getattribute && node.getattribute( i );
                if ( val ) {
                    script.setattribute( i, val );
                }
            }
        }
        doc.head.appendchild( script ).parentnode.removechild( script );
    }


    function totype( obj ) {
        if ( obj == null ) {
            return obj + "";
        }

        // support: android <=2.3 only (functionish regexp)
        return typeof obj === "object" || typeof obj === "function" ?
            class2type[ tostring.call( obj ) ] || "object" :
            typeof obj;
    }
    /* global symbol */
// defining this global in .eslintrc.json would create a danger of using the global
// unguarded in another place, it seems safer to define global only for this module



    var
        version = "3.5.1",

        // define a local copy of jquery
        jquery = function( selector, context ) {

            // the jquery object is actually just the init constructor 'enhanced'
            // need init if jquery is called (just allow error to be thrown if not included)
            return new jquery.fn.init( selector, context );
        };

    jquery.fn = jquery.prototype = {

        // the current version of jquery being used
        jquery: version,

        constructor: jquery,

        // the default length of a jquery object is 0
        length: 0,

        toarray: function() {
            return slice.call( this );
        },

        // get the nth element in the matched element set or
        // get the whole matched element set as a clean array
        get: function( num ) {

            // return all the elements in a clean array
            if ( num == null ) {
                return slice.call( this );
            }

            // return just the one element from the set
            return num < 0 ? this[ num + this.length ] : this[ num ];
        },

        // take an array of elements and push it onto the stack
        // (returning the new matched element set)
        pushstack: function( elems ) {

            // build a new jquery matched element set
            var ret = jquery.merge( this.constructor(), elems );

            // add the old object onto the stack (as a reference)
            ret.prevobject = this;

            // return the newly-formed element set
            return ret;
        },

        // execute a callback for every element in the matched set.
        each: function( callback ) {
            return jquery.each( this, callback );
        },

        map: function( callback ) {
            return this.pushstack( jquery.map( this, function( elem, i ) {
                return callback.call( elem, i, elem );
            } ) );
        },

        slice: function() {
            return this.pushstack( slice.apply( this, arguments ) );
        },

        first: function() {
            return this.eq( 0 );
        },

        last: function() {
            return this.eq( -1 );
        },

        even: function() {
            return this.pushstack( jquery.grep( this, function( _elem, i ) {
                return ( i + 1 ) % 2;
            } ) );
        },

        odd: function() {
            return this.pushstack( jquery.grep( this, function( _elem, i ) {
                return i % 2;
            } ) );
        },

        eq: function( i ) {
            var len = this.length,
                j = +i + ( i < 0 ? len : 0 );
            return this.pushstack( j >= 0 && j < len ? [ this[ j ] ] : [] );
        },

        end: function() {
            return this.prevobject || this.constructor();
        },

        // for internal use only.
        // behaves like an array's method, not like a jquery method.
        push: push,
        sort: arr.sort,
        splice: arr.splice
    };

    jquery.extend = jquery.fn.extend = function() {
        var options, name, src, copy, copyisarray, clone,
            target = arguments[ 0 ] || {},
            i = 1,
            length = arguments.length,
            deep = false;

        // handle a deep copy situation
        if ( typeof target === "boolean" ) {
            deep = target;

            // skip the boolean and the target
            target = arguments[ i ] || {};
            i++;
        }

        // handle case when target is a string or something (possible in deep copy)
        if ( typeof target !== "object" && !isfunction( target ) ) {
            target = {};
        }

        // extend jquery itself if only one argument is passed
        if ( i === length ) {
            target = this;
            i--;
        }

        for ( ; i < length; i++ ) {

            // only deal with non-null/undefined values
            if ( ( options = arguments[ i ] ) != null ) {

                // extend the base object
                for ( name in options ) {
                    copy = options[ name ];

                    // prevent object.prototype pollution
                    // prevent never-ending loop
                    if ( name === "__proto__" || target === copy ) {
                        continue;
                    }

                    // recurse if we're merging plain objects or arrays
                    if ( deep && copy && ( jquery.isplainobject( copy ) ||
                        ( copyisarray = array.isarray( copy ) ) ) ) {
                        src = target[ name ];

                        // ensure proper type for the source value
                        if ( copyisarray && !array.isarray( src ) ) {
                            clone = [];
                        } else if ( !copyisarray && !jquery.isplainobject( src ) ) {
                            clone = {};
                        } else {
                            clone = src;
                        }
                        copyisarray = false;

                        // never move original objects, clone them
                        target[ name ] = jquery.extend( deep, clone, copy );

                        // don't bring in undefined values
                    } else if ( copy !== undefined ) {
                        target[ name ] = copy;
                    }
                }
            }
        }

        // return the modified object
        return target;
    };

    jquery.extend( {

        // unique for each copy of jquery on the page
        expando: "jquery" + ( version + math.random() ).replace( /\d/g, "" ),

        // assume jquery is ready without the ready module
        isready: true,

        error: function( msg ) {
            throw new error( msg );
        },

        noop: function() {},

        isplainobject: function( obj ) {
            var proto, ctor;

            // detect obvious negatives
            // use tostring instead of jquery.type to catch host objects
            if ( !obj || tostring.call( obj ) !== "[object object]" ) {
                return false;
            }

            proto = getproto( obj );

            // objects with no prototype (e.g., `object.create( null )`) are plain
            if ( !proto ) {
                return true;
            }

            // objects with prototype are plain iff they were constructed by a global object function
            ctor = hasown.call( proto, "constructor" ) && proto.constructor;
            return typeof ctor === "function" && fntostring.call( ctor ) === objectfunctionstring;
        },

        isemptyobject: function( obj ) {
            var name;

            for ( name in obj ) {
                return false;
            }
            return true;
        },

        // evaluates a script in a provided context; falls back to the global one
        // if not specified.
        globaleval: function( code, options, doc ) {
            domeval( code, { nonce: options && options.nonce }, doc );
        },

        each: function( obj, callback ) {
            var length, i = 0;

            if ( isarraylike( obj ) ) {
                length = obj.length;
                for ( ; i < length; i++ ) {
                    if ( callback.call( obj[ i ], i, obj[ i ] ) === false ) {
                        break;
                    }
                }
            } else {
                for ( i in obj ) {
                    if ( callback.call( obj[ i ], i, obj[ i ] ) === false ) {
                        break;
                    }
                }
            }

            return obj;
        },

        // results is for internal usage only
        makearray: function( arr, results ) {
            var ret = results || [];

            if ( arr != null ) {
                if ( isarraylike( object( arr ) ) ) {
                    jquery.merge( ret,
                        typeof arr === "string" ?
                            [ arr ] : arr
                    );
                } else {
                    push.call( ret, arr );
                }
            }

            return ret;
        },

        inarray: function( elem, arr, i ) {
            return arr == null ? -1 : indexof.call( arr, elem, i );
        },

        // support: android <=4.0 only, phantomjs 1 only
        // push.apply(_, arraylike) throws on ancient webkit
        merge: function( first, second ) {
            var len = +second.length,
                j = 0,
                i = first.length;

            for ( ; j < len; j++ ) {
                first[ i++ ] = second[ j ];
            }

            first.length = i;

            return first;
        },

        grep: function( elems, callback, invert ) {
            var callbackinverse,
                matches = [],
                i = 0,
                length = elems.length,
                callbackexpect = !invert;

            // go through the array, only saving the items
            // that pass the validator function
            for ( ; i < length; i++ ) {
                callbackinverse = !callback( elems[ i ], i );
                if ( callbackinverse !== callbackexpect ) {
                    matches.push( elems[ i ] );
                }
            }

            return matches;
        },

        // arg is for internal usage only
        map: function( elems, callback, arg ) {
            var length, value,
                i = 0,
                ret = [];

            // go through the array, translating each of the items to their new values
            if ( isarraylike( elems ) ) {
                length = elems.length;
                for ( ; i < length; i++ ) {
                    value = callback( elems[ i ], i, arg );

                    if ( value != null ) {
                        ret.push( value );
                    }
                }

                // go through every key on the object,
            } else {
                for ( i in elems ) {
                    value = callback( elems[ i ], i, arg );

                    if ( value != null ) {
                        ret.push( value );
                    }
                }
            }

            // flatten any nested arrays
            return flat( ret );
        },

        // a global guid counter for objects
        guid: 1,

        // jquery.support is not used in core but other projects attach their
        // properties to it so it needs to exist.
        support: support
    } );

    if ( typeof symbol === "function" ) {
        jquery.fn[ symbol.iterator ] = arr[ symbol.iterator ];
    }

// populate the class2type map
    jquery.each( "boolean number string function array date regexp object error symbol".split( " " ),
        function( _i, name ) {
            class2type[ "[object " + name + "]" ] = name.tolowercase();
        } );

    function isarraylike( obj ) {

        // support: real ios 8.2 only (not reproducible in simulator)
        // `in` check used to prevent jit error (gh-2145)
        // hasown isn't used here due to false negatives
        // regarding nodelist length in ie
        var length = !!obj && "length" in obj && obj.length,
            type = totype( obj );

        if ( isfunction( obj ) || iswindow( obj ) ) {
            return false;
        }

        return type === "array" || length === 0 ||
            typeof length === "number" && length > 0 && ( length - 1 ) in obj;
    }
    var sizzle =
        /*!
 * sizzle css selector engine v2.3.5
 * https://sizzlejs.com/
 *
 * copyright js foundation and other contributors
 * released under the mit license
 * https://js.foundation/
 *
 * date: 2020-03-14
 */
        ( function( window ) {
            var i,
                support,
                expr,
                gettext,
                isxml,
                tokenize,
                compile,
                select,
                outermostcontext,
                sortinput,
                hasduplicate,

                // local document vars
                setdocument,
                document,
                docelem,
                documentishtml,
                rbuggyqsa,
                rbuggymatches,
                matches,
                contains,

                // instance-specific data
                expando = "sizzle" + 1 * new date(),
                preferreddoc = window.document,
                dirruns = 0,
                done = 0,
                classcache = createcache(),
                tokencache = createcache(),
                compilercache = createcache(),
                nonnativeselectorcache = createcache(),
                sortorder = function( a, b ) {
                    if ( a === b ) {
                        hasduplicate = true;
                    }
                    return 0;
                },

                // instance methods
                hasown = ( {} ).hasownproperty,
                arr = [],
                pop = arr.pop,
                pushnative = arr.push,
                push = arr.push,
                slice = arr.slice,

                // use a stripped-down indexof as it's faster than native
                // https://jsperf.com/thor-indexof-vs-for/5
                indexof = function( list, elem ) {
                    var i = 0,
                        len = list.length;
                    for ( ; i < len; i++ ) {
                        if ( list[ i ] === elem ) {
                            return i;
                        }
                    }
                    return -1;
                },

                booleans = "checked|selected|async|autofocus|autoplay|controls|defer|disabled|hidden|" +
                    "ismap|loop|multiple|open|readonly|required|scoped",

                // regular expressions

                // http://www.w3.org/tr/css3-selectors/#whitespace
                whitespace = "[\\x20\\t\\r\\n\\f]",

                // https://www.w3.org/tr/css-syntax-3/#ident-token-diagram
                identifier = "(?:\\\\[\\da-fa-f]{1,6}" + whitespace +
                    "?|\\\\[^\\r\\n\\f]|[\\w-]|[^\0-\\x7f])+",

                // attribute selectors: http://www.w3.org/tr/selectors/#attribute-selectors
                attributes = "\\[" + whitespace + "*(" + identifier + ")(?:" + whitespace +

                    // operator (capture 2)
                    "*([*^$|!~]?=)" + whitespace +

                    // "attribute values must be css identifiers [capture 5]
                    // or strings [capture 3 or capture 4]"
                    "*(?:'((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\"|(" + identifier + "))|)" +
                    whitespace + "*\\]",

                pseudos = ":(" + identifier + ")(?:\\((" +

                    // to reduce the number of selectors needing tokenize in the prefilter, prefer arguments:
                    // 1. quoted (capture 3; capture 4 or capture 5)
                    "('((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\")|" +

                    // 2. simple (capture 6)
                    "((?:\\\\.|[^\\\\()[\\]]|" + attributes + ")*)|" +

                    // 3. anything else (capture 2)
                    ".*" +
                    ")\\)|)",

                // leading and non-escaped trailing whitespace, capturing some non-whitespace characters preceding the latter
                rwhitespace = new regexp( whitespace + "+", "g" ),
                rtrim = new regexp( "^" + whitespace + "+|((?:^|[^\\\\])(?:\\\\.)*)" +
                    whitespace + "+$", "g" ),

                rcomma = new regexp( "^" + whitespace + "*," + whitespace + "*" ),
                rcombinators = new regexp( "^" + whitespace + "*([>+~]|" + whitespace + ")" + whitespace +
                    "*" ),
                rdescend = new regexp( whitespace + "|>" ),

                rpseudo = new regexp( pseudos ),
                ridentifier = new regexp( "^" + identifier + "$" ),

                matchexpr = {
                    "id": new regexp( "^#(" + identifier + ")" ),
                    "class": new regexp( "^\\.(" + identifier + ")" ),
                    "tag": new regexp( "^(" + identifier + "|[*])" ),
                    "attr": new regexp( "^" + attributes ),
                    "pseudo": new regexp( "^" + pseudos ),
                    "child": new regexp( "^:(only|first|last|nth|nth-last)-(child|of-type)(?:\\(" +
                        whitespace + "*(even|odd|(([+-]|)(\\d*)n|)" + whitespace + "*(?:([+-]|)" +
                        whitespace + "*(\\d+)|))" + whitespace + "*\\)|)", "i" ),
                    "bool": new regexp( "^(?:" + booleans + ")$", "i" ),

                    // for use in libraries implementing .is()
                    // we use this for pos matching in `select`
                    "needscontext": new regexp( "^" + whitespace +
                        "*[>+~]|:(even|odd|eq|gt|lt|nth|first|last)(?:\\(" + whitespace +
                        "*((?:-\\d)?\\d*)" + whitespace + "*\\)|)(?=[^-]|$)", "i" )
                },

                rhtml = /html$/i,
                rinputs = /^(?:input|select|textarea|button)$/i,
                rheader = /^h\d$/i,

                rnative = /^[^{]+\{\s*\[native \w/,

                // easily-parseable/retrievable id or tag or class selectors
                rquickexpr = /^(?:#([\w-]+)|(\w+)|\.([\w-]+))$/,

                rsibling = /[+~]/,

                // css escapes
                // http://www.w3.org/tr/css21/syndata.html#escaped-characters
                runescape = new regexp( "\\\\[\\da-fa-f]{1,6}" + whitespace + "?|\\\\([^\\r\\n\\f])", "g" ),
                funescape = function( escape, nonhex ) {
                    var high = "0x" + escape.slice( 1 ) - 0x10000;

                    return nonhex ?

                        // strip the backslash prefix from a non-hex escape sequence
                        nonhex :

                        // replace a hexadecimal escape sequence with the encoded unicode code point
                        // support: ie <=11+
                        // for values outside the basic multilingual plane (bmp), manually construct a
                        // surrogate pair
                        high < 0 ?
                            string.fromcharcode( high + 0x10000 ) :
                            string.fromcharcode( high >> 10 | 0xd800, high & 0x3ff | 0xdc00 );
                },

                // css string/identifier serialization
                // https://drafts.csswg.org/cssom/#common-serializing-idioms
                rcssescape = /([\0-\x1f\x7f]|^-?\d)|^-$|[^\0-\x1f\x7f-\uffff\w-]/g,
                fcssescape = function( ch, ascodepoint ) {
                    if ( ascodepoint ) {

                        // u+0000 null becomes u+fffd replacement character
                        if ( ch === "\0" ) {
                            return "\ufffd";
                        }

                        // control characters and (dependent upon position) numbers get escaped as code points
                        return ch.slice( 0, -1 ) + "\\" +
                            ch.charcodeat( ch.length - 1 ).tostring( 16 ) + " ";
                    }

                    // other potentially-special ascii characters get backslash-escaped
                    return "\\" + ch;
                },

                // used for iframes
                // see setdocument()
                // removing the function wrapper causes a "permission denied"
                // error in ie
                unloadhandler = function() {
                    setdocument();
                },

                indisabledfieldset = addcombinator(
                    function( elem ) {
                        return elem.disabled === true && elem.nodename.tolowercase() === "fieldset";
                    },
                    { dir: "parentnode", next: "legend" }
                );

// optimize for push.apply( _, nodelist )
            try {
                push.apply(
                    ( arr = slice.call( preferreddoc.childnodes ) ),
                    preferreddoc.childnodes
                );

                // support: android<4.0
                // detect silently failing push.apply
                // eslint-disable-next-line no-unused-expressions
                arr[ preferreddoc.childnodes.length ].nodetype;
            } catch ( e ) {
                push = { apply: arr.length ?

                        // leverage slice if possible
                        function( target, els ) {
                            pushnative.apply( target, slice.call( els ) );
                        } :

                        // support: ie<9
                        // otherwise append directly
                        function( target, els ) {
                            var j = target.length,
                                i = 0;

                            // can't trust nodelist.length
                            while ( ( target[ j++ ] = els[ i++ ] ) ) {}
                            target.length = j - 1;
                        }
                };
            }

            function sizzle( selector, context, results, seed ) {
                var m, i, elem, nid, match, groups, newselector,
                    newcontext = context && context.ownerdocument,

                    // nodetype defaults to 9, since context defaults to document
                    nodetype = context ? context.nodetype : 9;

                results = results || [];

                // return early from calls with invalid selector or context
                if ( typeof selector !== "string" || !selector ||
                    nodetype !== 1 && nodetype !== 9 && nodetype !== 11 ) {

                    return results;
                }

                // try to shortcut find operations (as opposed to filters) in html documents
                if ( !seed ) {
                    setdocument( context );
                    context = context || document;

                    if ( documentishtml ) {

                        // if the selector is sufficiently simple, try using a "get*by*" dom method
                        // (excepting documentfragment context, where the methods don't exist)
                        if ( nodetype !== 11 && ( match = rquickexpr.exec( selector ) ) ) {

                            // id selector
                            if ( ( m = match[ 1 ] ) ) {

                                // document context
                                if ( nodetype === 9 ) {
                                    if ( ( elem = context.getelementbyid( m ) ) ) {

                                        // support: ie, opera, webkit
                                        // todo: identify versions
                                        // getelementbyid can match elements by name instead of id
                                        if ( elem.id === m ) {
                                            results.push( elem );
                                            return results;
                                        }
                                    } else {
                                        return results;
                                    }

                                    // element context
                                } else {

                                    // support: ie, opera, webkit
                                    // todo: identify versions
                                    // getelementbyid can match elements by name instead of id
                                    if ( newcontext && ( elem = newcontext.getelementbyid( m ) ) &&
                                        contains( context, elem ) &&
                                        elem.id === m ) {

                                        results.push( elem );
                                        return results;
                                    }
                                }

                                // type selector
                            } else if ( match[ 2 ] ) {
                                push.apply( results, context.getelementsbytagname( selector ) );
                                return results;

                                // class selector
                            } else if ( ( m = match[ 3 ] ) && support.getelementsbyclassname &&
                                context.getelementsbyclassname ) {

                                push.apply( results, context.getelementsbyclassname( m ) );
                                return results;
                            }
                        }

                        // take advantage of queryselectorall
                        if ( support.qsa &&
                            !nonnativeselectorcache[ selector + " " ] &&
                            ( !rbuggyqsa || !rbuggyqsa.test( selector ) ) &&

                            // support: ie 8 only
                            // exclude object elements
                            ( nodetype !== 1 || context.nodename.tolowercase() !== "object" ) ) {

                            newselector = selector;
                            newcontext = context;

                            // qsa considers elements outside a scoping root when evaluating child or
                            // descendant combinators, which is not what we want.
                            // in such cases, we work around the behavior by prefixing every selector in the
                            // list with an id selector referencing the scope context.
                            // the technique has to be used as well when a leading combinator is used
                            // as such selectors are not recognized by queryselectorall.
                            // thanks to andrew dupont for this technique.
                            if ( nodetype === 1 &&
                                ( rdescend.test( selector ) || rcombinators.test( selector ) ) ) {

                                // expand context for sibling selectors
                                newcontext = rsibling.test( selector ) && testcontext( context.parentnode ) ||
                                    context;

                                // we can use :scope instead of the id hack if the browser
                                // supports it & if we're not changing the context.
                                if ( newcontext !== context || !support.scope ) {

                                    // capture the context id, setting it first if necessary
                                    if ( ( nid = context.getattribute( "id" ) ) ) {
                                        nid = nid.replace( rcssescape, fcssescape );
                                    } else {
                                        context.setattribute( "id", ( nid = expando ) );
                                    }
                                }

                                // prefix every selector in the list
                                groups = tokenize( selector );
                                i = groups.length;
                                while ( i-- ) {
                                    groups[ i ] = ( nid ? "#" + nid : ":scope" ) + " " +
                                        toselector( groups[ i ] );
                                }
                                newselector = groups.join( "," );
                            }

                            try {
                                push.apply( results,
                                    newcontext.queryselectorall( newselector )
                                );
                                return results;
                            } catch ( qsaerror ) {
                                nonnativeselectorcache( selector, true );
                            } finally {
                                if ( nid === expando ) {
                                    context.removeattribute( "id" );
                                }
                            }
                        }
                    }
                }

                // all others
                return select( selector.replace( rtrim, "$1" ), context, results, seed );
            }

            /**
             * create key-value caches of limited size
             * @returns {function(string, object)} returns the object data after storing it on itself with
             *	property name the (space-suffixed) string and (if the cache is larger than expr.cachelength)
             *	deleting the oldest entry
             */
            function createcache() {
                var keys = [];

                function cache( key, value ) {

                    // use (key + " ") to avoid collision with native prototype properties (see issue #157)
                    if ( keys.push( key + " " ) > expr.cachelength ) {

                        // only keep the most recent entries
                        delete cache[ keys.shift() ];
                    }
                    return ( cache[ key + " " ] = value );
                }
                return cache;
            }

            /**
             * mark a function for special use by sizzle
             * @param {function} fn the function to mark
             */
            function markfunction( fn ) {
                fn[ expando ] = true;
                return fn;
            }

            /**
             * support testing using an element
             * @param {function} fn passed the created element and returns a boolean result
             */
            function assert( fn ) {
                var el = document.createelement( "fieldset" );

                try {
                    return !!fn( el );
                } catch ( e ) {
                    return false;
                } finally {

                    // remove from its parent by default
                    if ( el.parentnode ) {
                        el.parentnode.removechild( el );
                    }

                    // release memory in ie
                    el = null;
                }
            }

            /**
             * adds the same handler for all of the specified attrs
             * @param {string} attrs pipe-separated list of attributes
             * @param {function} handler the method that will be applied
             */
            function addhandle( attrs, handler ) {
                var arr = attrs.split( "|" ),
                    i = arr.length;

                while ( i-- ) {
                    expr.attrhandle[ arr[ i ] ] = handler;
                }
            }

            /**
             * checks document order of two siblings
             * @param {element} a
             * @param {element} b
             * @returns {number} returns less than 0 if a precedes b, greater than 0 if a follows b
             */
            function siblingcheck( a, b ) {
                var cur = b && a,
                    diff = cur && a.nodetype === 1 && b.nodetype === 1 &&
                        a.sourceindex - b.sourceindex;

                // use ie sourceindex if available on both nodes
                if ( diff ) {
                    return diff;
                }

                // check if b follows a
                if ( cur ) {
                    while ( ( cur = cur.nextsibling ) ) {
                        if ( cur === b ) {
                            return -1;
                        }
                    }
                }

                return a ? 1 : -1;
            }

            /**
             * returns a function to use in pseudos for input types
             * @param {string} type
             */
            function createinputpseudo( type ) {
                return function( elem ) {
                    var name = elem.nodename.tolowercase();
                    return name === "input" && elem.type === type;
                };
            }

            /**
             * returns a function to use in pseudos for buttons
             * @param {string} type
             */
            function createbuttonpseudo( type ) {
                return function( elem ) {
                    var name = elem.nodename.tolowercase();
                    return ( name === "input" || name === "button" ) && elem.type === type;
                };
            }

            /**
             * returns a function to use in pseudos for :enabled/:disabled
             * @param {boolean} disabled true for :disabled; false for :enabled
             */
            function createdisabledpseudo( disabled ) {

                // known :disabled false positives: fieldset[disabled] > legend:nth-of-type(n+2) :can-disable
                return function( elem ) {

                    // only certain elements can match :enabled or :disabled
                    // https://html.spec.whatwg.org/multipage/scripting.html#selector-enabled
                    // https://html.spec.whatwg.org/multipage/scripting.html#selector-disabled
                    if ( "form" in elem ) {

                        // check for inherited disabledness on relevant non-disabled elements:
                        // * listed form-associated elements in a disabled fieldset
                        //   https://html.spec.whatwg.org/multipage/forms.html#category-listed
                        //   https://html.spec.whatwg.org/multipage/forms.html#concept-fe-disabled
                        // * option elements in a disabled optgroup
                        //   https://html.spec.whatwg.org/multipage/forms.html#concept-option-disabled
                        // all such elements have a "form" property.
                        if ( elem.parentnode && elem.disabled === false ) {

                            // option elements defer to a parent optgroup if present
                            if ( "label" in elem ) {
                                if ( "label" in elem.parentnode ) {
                                    return elem.parentnode.disabled === disabled;
                                } else {
                                    return elem.disabled === disabled;
                                }
                            }

                            // support: ie 6 - 11
                            // use the isdisabled shortcut property to check for disabled fieldset ancestors
                            return elem.isdisabled === disabled ||

                                // where there is no isdisabled, check manually
                                /* jshint -w018 */
                                elem.isdisabled !== !disabled &&
                                indisabledfieldset( elem ) === disabled;
                        }

                        return elem.disabled === disabled;

                        // try to winnow out elements that can't be disabled before trusting the disabled property.
                        // some victims get caught in our net (label, legend, menu, track), but it shouldn't
                        // even exist on them, let alone have a boolean value.
                    } else if ( "label" in elem ) {
                        return elem.disabled === disabled;
                    }

                    // remaining elements are neither :enabled nor :disabled
                    return false;
                };
            }

            /**
             * returns a function to use in pseudos for positionals
             * @param {function} fn
             */
            function createpositionalpseudo( fn ) {
                return markfunction( function( argument ) {
                    argument = +argument;
                    return markfunction( function( seed, matches ) {
                        var j,
                            matchindexes = fn( [], seed.length, argument ),
                            i = matchindexes.length;

                        // match elements found at the specified indexes
                        while ( i-- ) {
                            if ( seed[ ( j = matchindexes[ i ] ) ] ) {
                                seed[ j ] = !( matches[ j ] = seed[ j ] );
                            }
                        }
                    } );
                } );
            }

            /**
             * checks a node for validity as a sizzle context
             * @param {element|object=} context
             * @returns {element|object|boolean} the input node if acceptable, otherwise a falsy value
             */
            function testcontext( context ) {
                return context && typeof context.getelementsbytagname !== "undefined" && context;
            }

// expose support vars for convenience
            support = sizzle.support = {};

            /**
             * detects xml nodes
             * @param {element|object} elem an element or a document
             * @returns {boolean} true iff elem is a non-html xml node
             */
            isxml = sizzle.isxml = function( elem ) {
                var namespace = elem.namespaceuri,
                    docelem = ( elem.ownerdocument || elem ).documentelement;

                // support: ie <=8
                // assume html when documentelement doesn't yet exist, such as inside loading iframes
                // https://bugs.jquery.com/ticket/4833
                return !rhtml.test( namespace || docelem && docelem.nodename || "html" );
            };

            /**
             * sets document-related variables once based on the current document
             * @param {element|object} [doc] an element or document object to use to set the document
             * @returns {object} returns the current document
             */
            setdocument = sizzle.setdocument = function( node ) {
                var hascompare, subwindow,
                    doc = node ? node.ownerdocument || node : preferreddoc;

                // return early if doc is invalid or already selected
                // support: ie 11+, edge 17 - 18+
                // ie/edge sometimes throw a "permission denied" error when strict-comparing
                // two documents; shallow comparisons work.
                // eslint-disable-next-line eqeqeq
                if ( doc == document || doc.nodetype !== 9 || !doc.documentelement ) {
                    return document;
                }

                // update global variables
                document = doc;
                docelem = document.documentelement;
                documentishtml = !isxml( document );

                // support: ie 9 - 11+, edge 12 - 18+
                // accessing iframe documents after unload throws "permission denied" errors (jquery #13936)
                // support: ie 11+, edge 17 - 18+
                // ie/edge sometimes throw a "permission denied" error when strict-comparing
                // two documents; shallow comparisons work.
                // eslint-disable-next-line eqeqeq
                if ( preferreddoc != document &&
                    ( subwindow = document.defaultview ) && subwindow.top !== subwindow ) {

                    // support: ie 11, edge
                    if ( subwindow.addeventlistener ) {
                        subwindow.addeventlistener( "unload", unloadhandler, false );

                        // support: ie 9 - 10 only
                    } else if ( subwindow.attachevent ) {
                        subwindow.attachevent( "onunload", unloadhandler );
                    }
                }

                // support: ie 8 - 11+, edge 12 - 18+, chrome <=16 - 25 only, firefox <=3.6 - 31 only,
                // safari 4 - 5 only, opera <=11.6 - 12.x only
                // ie/edge & older browsers don't support the :scope pseudo-class.
                // support: safari 6.0 only
                // safari 6.0 supports :scope but it's an alias of :root there.
                support.scope = assert( function( el ) {
                    docelem.appendchild( el ).appendchild( document.createelement( "div" ) );
                    return typeof el.queryselectorall !== "undefined" &&
                        !el.queryselectorall( ":scope fieldset div" ).length;
                } );

                /* attributes
	---------------------------------------------------------------------- */

                // support: ie<8
                // verify that getattribute really returns attributes and not properties
                // (excepting ie8 booleans)
                support.attributes = assert( function( el ) {
                    el.classname = "i";
                    return !el.getattribute( "classname" );
                } );

                /* getelement(s)by*
	---------------------------------------------------------------------- */

                // check if getelementsbytagname("*") returns only elements
                support.getelementsbytagname = assert( function( el ) {
                    el.appendchild( document.createcomment( "" ) );
                    return !el.getelementsbytagname( "*" ).length;
                } );

                // support: ie<9
                support.getelementsbyclassname = rnative.test( document.getelementsbyclassname );

                // support: ie<10
                // check if getelementbyid returns elements by name
                // the broken getelementbyid methods don't pick up programmatically-set names,
                // so use a roundabout getelementsbyname test
                support.getbyid = assert( function( el ) {
                    docelem.appendchild( el ).id = expando;
                    return !document.getelementsbyname || !document.getelementsbyname( expando ).length;
                } );

                // id filter and find
                if ( support.getbyid ) {
                    expr.filter[ "id" ] = function( id ) {
                        var attrid = id.replace( runescape, funescape );
                        return function( elem ) {
                            return elem.getattribute( "id" ) === attrid;
                        };
                    };
                    expr.find[ "id" ] = function( id, context ) {
                        if ( typeof context.getelementbyid !== "undefined" && documentishtml ) {
                            var elem = context.getelementbyid( id );
                            return elem ? [ elem ] : [];
                        }
                    };
                } else {
                    expr.filter[ "id" ] =  function( id ) {
                        var attrid = id.replace( runescape, funescape );
                        return function( elem ) {
                            var node = typeof elem.getattributenode !== "undefined" &&
                                elem.getattributenode( "id" );
                            return node && node.value === attrid;
                        };
                    };

                    // support: ie 6 - 7 only
                    // getelementbyid is not reliable as a find shortcut
                    expr.find[ "id" ] = function( id, context ) {
                        if ( typeof context.getelementbyid !== "undefined" && documentishtml ) {
                            var node, i, elems,
                                elem = context.getelementbyid( id );

                            if ( elem ) {

                                // verify the id attribute
                                node = elem.getattributenode( "id" );
                                if ( node && node.value === id ) {
                                    return [ elem ];
                                }

                                // fall back on getelementsbyname
                                elems = context.getelementsbyname( id );
                                i = 0;
                                while ( ( elem = elems[ i++ ] ) ) {
                                    node = elem.getattributenode( "id" );
                                    if ( node && node.value === id ) {
                                        return [ elem ];
                                    }
                                }
                            }

                            return [];
                        }
                    };
                }

                // tag
                expr.find[ "tag" ] = support.getelementsbytagname ?
                    function( tag, context ) {
                        if ( typeof context.getelementsbytagname !== "undefined" ) {
                            return context.getelementsbytagname( tag );

                            // documentfragment nodes don't have gebtn
                        } else if ( support.qsa ) {
                            return context.queryselectorall( tag );
                        }
                    } :

                    function( tag, context ) {
                        var elem,
                            tmp = [],
                            i = 0,

                            // by happy coincidence, a (broken) gebtn appears on documentfragment nodes too
                            results = context.getelementsbytagname( tag );

                        // filter out possible comments
                        if ( tag === "*" ) {
                            while ( ( elem = results[ i++ ] ) ) {
                                if ( elem.nodetype === 1 ) {
                                    tmp.push( elem );
                                }
                            }

                            return tmp;
                        }
                        return results;
                    };

                // class
                expr.find[ "class" ] = support.getelementsbyclassname && function( classname, context ) {
                    if ( typeof context.getelementsbyclassname !== "undefined" && documentishtml ) {
                        return context.getelementsbyclassname( classname );
                    }
                };

                /* qsa/matchesselector
	---------------------------------------------------------------------- */

                // qsa and matchesselector support

                // matchesselector(:active) reports false when true (ie9/opera 11.5)
                rbuggymatches = [];

                // qsa(:focus) reports false when true (chrome 21)
                // we allow this because of a bug in ie8/9 that throws an error
                // whenever `document.activeelement` is accessed on an iframe
                // so, we allow :focus to pass through qsa all the time to avoid the ie error
                // see https://bugs.jquery.com/ticket/13378
                rbuggyqsa = [];

                if ( ( support.qsa = rnative.test( document.queryselectorall ) ) ) {

                    // build qsa regex
                    // regex strategy adopted from diego perini
                    assert( function( el ) {

                        var input;

                        // select is set to empty string on purpose
                        // this is to test ie's treatment of not explicitly
                        // setting a boolean content attribute,
                        // since its presence should be enough
                        // https://bugs.jquery.com/ticket/12359
                        docelem.appendchild( el ).innerhtml = "<a id='" + expando + "'></a>" +
                            "<select id='" + expando + "-\r\\' msallowcapture=''>" +
                            "<option selected=''></option></select>";

                        // support: ie8, opera 11-12.16
                        // nothing should be selected when empty strings follow ^= or $= or *=
                        // the test attribute must be unknown in opera but "safe" for winrt
                        // https://msdn.microsoft.com/en-us/library/ie/hh465388.aspx#attribute_section
                        if ( el.queryselectorall( "[msallowcapture^='']" ).length ) {
                            rbuggyqsa.push( "[*^$]=" + whitespace + "*(?:''|\"\")" );
                        }

                        // support: ie8
                        // boolean attributes and "value" are not treated correctly
                        if ( !el.queryselectorall( "[selected]" ).length ) {
                            rbuggyqsa.push( "\\[" + whitespace + "*(?:value|" + booleans + ")" );
                        }

                        // support: chrome<29, android<4.4, safari<7.0+, ios<7.0+, phantomjs<1.9.8+
                        if ( !el.queryselectorall( "[id~=" + expando + "-]" ).length ) {
                            rbuggyqsa.push( "~=" );
                        }

                        // support: ie 11+, edge 15 - 18+
                        // ie 11/edge don't find elements on a `[name='']` query in some cases.
                        // adding a temporary attribute to the document before the selection works
                        // around the issue.
                        // interestingly, ie 10 & older don't seem to have the issue.
                        input = document.createelement( "input" );
                        input.setattribute( "name", "" );
                        el.appendchild( input );
                        if ( !el.queryselectorall( "[name='']" ).length ) {
                            rbuggyqsa.push( "\\[" + whitespace + "*name" + whitespace + "*=" +
                                whitespace + "*(?:''|\"\")" );
                        }

                        // webkit/opera - :checked should return selected option elements
                        // http://www.w3.org/tr/2011/rec-css3-selectors-20110929/#checked
                        // ie8 throws error here and will not see later tests
                        if ( !el.queryselectorall( ":checked" ).length ) {
                            rbuggyqsa.push( ":checked" );
                        }

                        // support: safari 8+, ios 8+
                        // https://bugs.webkit.org/show_bug.cgi?id=136851
                        // in-page `selector#id sibling-combinator selector` fails
                        if ( !el.queryselectorall( "a#" + expando + "+*" ).length ) {
                            rbuggyqsa.push( ".#.+[+~]" );
                        }

                        // support: firefox <=3.6 - 5 only
                        // old firefox doesn't throw on a badly-escaped identifier.
                        el.queryselectorall( "\\\f" );
                        rbuggyqsa.push( "[\\r\\n\\f]" );
                    } );

                    assert( function( el ) {
                        el.innerhtml = "<a href='' disabled='disabled'></a>" +
                            "<select disabled='disabled'><option/></select>";

                        // support: windows 8 native apps
                        // the type and name attributes are restricted during .innerhtml assignment
                        var input = document.createelement( "input" );
                        input.setattribute( "type", "hidden" );
                        el.appendchild( input ).setattribute( "name", "d" );

                        // support: ie8
                        // enforce case-sensitivity of name attribute
                        if ( el.queryselectorall( "[name=d]" ).length ) {
                            rbuggyqsa.push( "name" + whitespace + "*[*^$|!~]?=" );
                        }

                        // ff 3.5 - :enabled/:disabled and hidden elements (hidden elements are still enabled)
                        // ie8 throws error here and will not see later tests
                        if ( el.queryselectorall( ":enabled" ).length !== 2 ) {
                            rbuggyqsa.push( ":enabled", ":disabled" );
                        }

                        // support: ie9-11+
                        // ie's :disabled selector does not pick up the children of disabled fieldsets
                        docelem.appendchild( el ).disabled = true;
                        if ( el.queryselectorall( ":disabled" ).length !== 2 ) {
                            rbuggyqsa.push( ":enabled", ":disabled" );
                        }

                        // support: opera 10 - 11 only
                        // opera 10-11 does not throw on post-comma invalid pseudos
                        el.queryselectorall( "*,:x" );
                        rbuggyqsa.push( ",.*:" );
                    } );
                }

                if ( ( support.matchesselector = rnative.test( ( matches = docelem.matches ||
                    docelem.webkitmatchesselector ||
                    docelem.mozmatchesselector ||
                    docelem.omatchesselector ||
                    docelem.msmatchesselector ) ) ) ) {

                    assert( function( el ) {

                        // check to see if it's possible to do matchesselector
                        // on a disconnected node (ie 9)
                        support.disconnectedmatch = matches.call( el, "*" );

                        // this should fail with an exception
                        // gecko does not error, returns false instead
                        matches.call( el, "[s!='']:x" );
                        rbuggymatches.push( "!=", pseudos );
                    } );
                }

                rbuggyqsa = rbuggyqsa.length && new regexp( rbuggyqsa.join( "|" ) );
                rbuggymatches = rbuggymatches.length && new regexp( rbuggymatches.join( "|" ) );

                /* contains
	---------------------------------------------------------------------- */
                hascompare = rnative.test( docelem.comparedocumentposition );

                // element contains another
                // purposefully self-exclusive
                // as in, an element does not contain itself
                contains = hascompare || rnative.test( docelem.contains ) ?
                    function( a, b ) {
                        var adown = a.nodetype === 9 ? a.documentelement : a,
                            bup = b && b.parentnode;
                        return a === bup || !!( bup && bup.nodetype === 1 && (
                            adown.contains ?
                                adown.contains( bup ) :
                                a.comparedocumentposition && a.comparedocumentposition( bup ) & 16
                        ) );
                    } :
                    function( a, b ) {
                        if ( b ) {
                            while ( ( b = b.parentnode ) ) {
                                if ( b === a ) {
                                    return true;
                                }
                            }
                        }
                        return false;
                    };

                /* sorting
	---------------------------------------------------------------------- */

                // document order sorting
                sortorder = hascompare ?
                    function( a, b ) {

                        // flag for duplicate removal
                        if ( a === b ) {
                            hasduplicate = true;
                            return 0;
                        }

                        // sort on method existence if only one input has comparedocumentposition
                        var compare = !a.comparedocumentposition - !b.comparedocumentposition;
                        if ( compare ) {
                            return compare;
                        }

                        // calculate position if both inputs belong to the same document
                        // support: ie 11+, edge 17 - 18+
                        // ie/edge sometimes throw a "permission denied" error when strict-comparing
                        // two documents; shallow comparisons work.
                        // eslint-disable-next-line eqeqeq
                        compare = ( a.ownerdocument || a ) == ( b.ownerdocument || b ) ?
                            a.comparedocumentposition( b ) :

                            // otherwise we know they are disconnected
                            1;

                        // disconnected nodes
                        if ( compare & 1 ||
                            ( !support.sortdetached && b.comparedocumentposition( a ) === compare ) ) {

                            // choose the first element that is related to our preferred document
                            // support: ie 11+, edge 17 - 18+
                            // ie/edge sometimes throw a "permission denied" error when strict-comparing
                            // two documents; shallow comparisons work.
                            // eslint-disable-next-line eqeqeq
                            if ( a == document || a.ownerdocument == preferreddoc &&
                                contains( preferreddoc, a ) ) {
                                return -1;
                            }

                            // support: ie 11+, edge 17 - 18+
                            // ie/edge sometimes throw a "permission denied" error when strict-comparing
                            // two documents; shallow comparisons work.
                            // eslint-disable-next-line eqeqeq
                            if ( b == document || b.ownerdocument == preferreddoc &&
                                contains( preferreddoc, b ) ) {
                                return 1;
                            }

                            // maintain original order
                            return sortinput ?
                                ( indexof( sortinput, a ) - indexof( sortinput, b ) ) :
                                0;
                        }

                        return compare & 4 ? -1 : 1;
                    } :
                    function( a, b ) {

                        // exit early if the nodes are identical
                        if ( a === b ) {
                            hasduplicate = true;
                            return 0;
                        }

                        var cur,
                            i = 0,
                            aup = a.parentnode,
                            bup = b.parentnode,
                            ap = [ a ],
                            bp = [ b ];

                        // parentless nodes are either documents or disconnected
                        if ( !aup || !bup ) {

                            // support: ie 11+, edge 17 - 18+
                            // ie/edge sometimes throw a "permission denied" error when strict-comparing
                            // two documents; shallow comparisons work.
                            /* eslint-disable eqeqeq */
                            return a == document ? -1 :
                                b == document ? 1 :
                                    /* eslint-enable eqeqeq */
                                    aup ? -1 :
                                        bup ? 1 :
                                            sortinput ?
                                                ( indexof( sortinput, a ) - indexof( sortinput, b ) ) :
                                                0;

                            // if the nodes are siblings, we can do a quick check
                        } else if ( aup === bup ) {
                            return siblingcheck( a, b );
                        }

                        // otherwise we need full lists of their ancestors for comparison
                        cur = a;
                        while ( ( cur = cur.parentnode ) ) {
                            ap.unshift( cur );
                        }
                        cur = b;
                        while ( ( cur = cur.parentnode ) ) {
                            bp.unshift( cur );
                        }

                        // walk down the tree looking for a discrepancy
                        while ( ap[ i ] === bp[ i ] ) {
                            i++;
                        }

                        return i ?

                            // do a sibling check if the nodes have a common ancestor
                            siblingcheck( ap[ i ], bp[ i ] ) :

                            // otherwise nodes in our document sort first
                            // support: ie 11+, edge 17 - 18+
                            // ie/edge sometimes throw a "permission denied" error when strict-comparing
                            // two documents; shallow comparisons work.
                            /* eslint-disable eqeqeq */
                            ap[ i ] == preferreddoc ? -1 :
                                bp[ i ] == preferreddoc ? 1 :
                                    /* eslint-enable eqeqeq */
                                    0;
                    };

                return document;
            };

            sizzle.matches = function( expr, elements ) {
                return sizzle( expr, null, null, elements );
            };

            sizzle.matchesselector = function( elem, expr ) {
                setdocument( elem );

                if ( support.matchesselector && documentishtml &&
                    !nonnativeselectorcache[ expr + " " ] &&
                    ( !rbuggymatches || !rbuggymatches.test( expr ) ) &&
                    ( !rbuggyqsa     || !rbuggyqsa.test( expr ) ) ) {

                    try {
                        var ret = matches.call( elem, expr );

                        // ie 9's matchesselector returns false on disconnected nodes
                        if ( ret || support.disconnectedmatch ||

                            // as well, disconnected nodes are said to be in a document
                            // fragment in ie 9
                            elem.document && elem.document.nodetype !== 11 ) {
                            return ret;
                        }
                    } catch ( e ) {
                        nonnativeselectorcache( expr, true );
                    }
                }

                return sizzle( expr, document, null, [ elem ] ).length > 0;
            };

            sizzle.contains = function( context, elem ) {

                // set document vars if needed
                // support: ie 11+, edge 17 - 18+
                // ie/edge sometimes throw a "permission denied" error when strict-comparing
                // two documents; shallow comparisons work.
                // eslint-disable-next-line eqeqeq
                if ( ( context.ownerdocument || context ) != document ) {
                    setdocument( context );
                }
                return contains( context, elem );
            };

            sizzle.attr = function( elem, name ) {

                // set document vars if needed
                // support: ie 11+, edge 17 - 18+
                // ie/edge sometimes throw a "permission denied" error when strict-comparing
                // two documents; shallow comparisons work.
                // eslint-disable-next-line eqeqeq
                if ( ( elem.ownerdocument || elem ) != document ) {
                    setdocument( elem );
                }

                var fn = expr.attrhandle[ name.tolowercase() ],

                    // don't get fooled by object.prototype properties (jquery #13807)
                    val = fn && hasown.call( expr.attrhandle, name.tolowercase() ) ?
                        fn( elem, name, !documentishtml ) :
                        undefined;

                return val !== undefined ?
                    val :
                    support.attributes || !documentishtml ?
                        elem.getattribute( name ) :
                        ( val = elem.getattributenode( name ) ) && val.specified ?
                            val.value :
                            null;
            };

            sizzle.escape = function( sel ) {
                return ( sel + "" ).replace( rcssescape, fcssescape );
            };

            sizzle.error = function( msg ) {
                throw new error( "syntax error, unrecognized expression: " + msg );
            };

            /**
             * document sorting and removing duplicates
             * @param {arraylike} results
             */
            sizzle.uniquesort = function( results ) {
                var elem,
                    duplicates = [],
                    j = 0,
                    i = 0;

                // unless we *know* we can detect duplicates, assume their presence
                hasduplicate = !support.detectduplicates;
                sortinput = !support.sortstable && results.slice( 0 );
                results.sort( sortorder );

                if ( hasduplicate ) {
                    while ( ( elem = results[ i++ ] ) ) {
                        if ( elem === results[ i ] ) {
                            j = duplicates.push( i );
                        }
                    }
                    while ( j-- ) {
                        results.splice( duplicates[ j ], 1 );
                    }
                }

                // clear input after sorting to release objects
                // see https://github.com/jquery/sizzle/pull/225
                sortinput = null;

                return results;
            };

            /**
             * utility function for retrieving the text value of an array of dom nodes
             * @param {array|element} elem
             */
            gettext = sizzle.gettext = function( elem ) {
                var node,
                    ret = "",
                    i = 0,
                    nodetype = elem.nodetype;

                if ( !nodetype ) {

                    // if no nodetype, this is expected to be an array
                    while ( ( node = elem[ i++ ] ) ) {

                        // do not traverse comment nodes
                        ret += gettext( node );
                    }
                } else if ( nodetype === 1 || nodetype === 9 || nodetype === 11 ) {

                    // use textcontent for elements
                    // innertext usage removed for consistency of new lines (jquery #11153)
                    if ( typeof elem.textcontent === "string" ) {
                        return elem.textcontent;
                    } else {

                        // traverse its children
                        for ( elem = elem.firstchild; elem; elem = elem.nextsibling ) {
                            ret += gettext( elem );
                        }
                    }
                } else if ( nodetype === 3 || nodetype === 4 ) {
                    return elem.nodevalue;
                }

                // do not include comment or processing instruction nodes

                return ret;
            };

            expr = sizzle.selectors = {

                // can be adjusted by the user
                cachelength: 50,

                createpseudo: markfunction,

                match: matchexpr,

                attrhandle: {},

                find: {},

                relative: {
                    ">": { dir: "parentnode", first: true },
                    " ": { dir: "parentnode" },
                    "+": { dir: "previoussibling", first: true },
                    "~": { dir: "previoussibling" }
                },

                prefilter: {
                    "attr": function( match ) {
                        match[ 1 ] = match[ 1 ].replace( runescape, funescape );

                        // move the given value to match[3] whether quoted or unquoted
                        match[ 3 ] = ( match[ 3 ] || match[ 4 ] ||
                            match[ 5 ] || "" ).replace( runescape, funescape );

                        if ( match[ 2 ] === "~=" ) {
                            match[ 3 ] = " " + match[ 3 ] + " ";
                        }

                        return match.slice( 0, 4 );
                    },

                    "child": function( match ) {

                        /* matches from matchexpr["child"]
				1 type (only|nth|...)
				2 what (child|of-type)
				3 argument (even|odd|\d*|\d*n([+-]\d+)?|...)
				4 xn-component of xn+y argument ([+-]?\d*n|)
				5 sign of xn-component
				6 x of xn-component
				7 sign of y-component
				8 y of y-component
			*/
                        match[ 1 ] = match[ 1 ].tolowercase();

                        if ( match[ 1 ].slice( 0, 3 ) === "nth" ) {

                            // nth-* requires argument
                            if ( !match[ 3 ] ) {
                                sizzle.error( match[ 0 ] );
                            }

                            // numeric x and y parameters for expr.filter.child
                            // remember that false/true cast respectively to 0/1
                            match[ 4 ] = +( match[ 4 ] ?
                                match[ 5 ] + ( match[ 6 ] || 1 ) :
                                2 * ( match[ 3 ] === "even" || match[ 3 ] === "odd" ) );
                            match[ 5 ] = +( ( match[ 7 ] + match[ 8 ] ) || match[ 3 ] === "odd" );

                            // other types prohibit arguments
                        } else if ( match[ 3 ] ) {
                            sizzle.error( match[ 0 ] );
                        }

                        return match;
                    },

                    "pseudo": function( match ) {
                        var excess,
                            unquoted = !match[ 6 ] && match[ 2 ];

                        if ( matchexpr[ "child" ].test( match[ 0 ] ) ) {
                            return null;
                        }

                        // accept quoted arguments as-is
                        if ( match[ 3 ] ) {
                            match[ 2 ] = match[ 4 ] || match[ 5 ] || "";

                            // strip excess characters from unquoted arguments
                        } else if ( unquoted && rpseudo.test( unquoted ) &&

                            // get excess from tokenize (recursively)
                            ( excess = tokenize( unquoted, true ) ) &&

                            // advance to the next closing parenthesis
                            ( excess = unquoted.indexof( ")", unquoted.length - excess ) - unquoted.length ) ) {

                            // excess is a negative index
                            match[ 0 ] = match[ 0 ].slice( 0, excess );
                            match[ 2 ] = unquoted.slice( 0, excess );
                        }

                        // return only captures needed by the pseudo filter method (type and argument)
                        return match.slice( 0, 3 );
                    }
                },

                filter: {

                    "tag": function( nodenameselector ) {
                        var nodename = nodenameselector.replace( runescape, funescape ).tolowercase();
                        return nodenameselector === "*" ?
                            function() {
                                return true;
                            } :
                            function( elem ) {
                                return elem.nodename && elem.nodename.tolowercase() === nodename;
                            };
                    },

                    "class": function( classname ) {
                        var pattern = classcache[ classname + " " ];

                        return pattern ||
                            ( pattern = new regexp( "(^|" + whitespace +
                                ")" + classname + "(" + whitespace + "|$)" ) ) && classcache(
                                classname, function( elem ) {
                                    return pattern.test(
                                        typeof elem.classname === "string" && elem.classname ||
                                        typeof elem.getattribute !== "undefined" &&
                                        elem.getattribute( "class" ) ||
                                        ""
                                    );
                                } );
                    },

                    "attr": function( name, operator, check ) {
                        return function( elem ) {
                            var result = sizzle.attr( elem, name );

                            if ( result == null ) {
                                return operator === "!=";
                            }
                            if ( !operator ) {
                                return true;
                            }

                            result += "";

                            /* eslint-disable max-len */

                            return operator === "=" ? result === check :
                                operator === "!=" ? result !== check :
                                    operator === "^=" ? check && result.indexof( check ) === 0 :
                                        operator === "*=" ? check && result.indexof( check ) > -1 :
                                            operator === "$=" ? check && result.slice( -check.length ) === check :
                                                operator === "~=" ? ( " " + result.replace( rwhitespace, " " ) + " " ).indexof( check ) > -1 :
                                                    operator === "|=" ? result === check || result.slice( 0, check.length + 1 ) === check + "-" :
                                                        false;
                            /* eslint-enable max-len */

                        };
                    },

                    "child": function( type, what, _argument, first, last ) {
                        var simple = type.slice( 0, 3 ) !== "nth",
                            forward = type.slice( -4 ) !== "last",
                            oftype = what === "of-type";

                        return first === 1 && last === 0 ?

                            // shortcut for :nth-*(n)
                            function( elem ) {
                                return !!elem.parentnode;
                            } :

                            function( elem, _context, xml ) {
                                var cache, uniquecache, outercache, node, nodeindex, start,
                                    dir = simple !== forward ? "nextsibling" : "previoussibling",
                                    parent = elem.parentnode,
                                    name = oftype && elem.nodename.tolowercase(),
                                    usecache = !xml && !oftype,
                                    diff = false;

                                if ( parent ) {

                                    // :(first|last|only)-(child|of-type)
                                    if ( simple ) {
                                        while ( dir ) {
                                            node = elem;
                                            while ( ( node = node[ dir ] ) ) {
                                                if ( oftype ?
                                                    node.nodename.tolowercase() === name :
                                                    node.nodetype === 1 ) {

                                                    return false;
                                                }
                                            }

                                            // reverse direction for :only-* (if we haven't yet done so)
                                            start = dir = type === "only" && !start && "nextsibling";
                                        }
                                        return true;
                                    }

                                    start = [ forward ? parent.firstchild : parent.lastchild ];

                                    // non-xml :nth-child(...) stores cache data on `parent`
                                    if ( forward && usecache ) {

                                        // seek `elem` from a previously-cached index

                                        // ...in a gzip-friendly way
                                        node = parent;
                                        outercache = node[ expando ] || ( node[ expando ] = {} );

                                        // support: ie <9 only
                                        // defend against cloned attroperties (jquery gh-1709)
                                        uniquecache = outercache[ node.uniqueid ] ||
                                            ( outercache[ node.uniqueid ] = {} );

                                        cache = uniquecache[ type ] || [];
                                        nodeindex = cache[ 0 ] === dirruns && cache[ 1 ];
                                        diff = nodeindex && cache[ 2 ];
                                        node = nodeindex && parent.childnodes[ nodeindex ];

                                        while ( ( node = ++nodeindex && node && node[ dir ] ||

                                            // fallback to seeking `elem` from the start
                                            ( diff = nodeindex = 0 ) || start.pop() ) ) {

                                            // when found, cache indexes on `parent` and break
                                            if ( node.nodetype === 1 && ++diff && node === elem ) {
                                                uniquecache[ type ] = [ dirruns, nodeindex, diff ];
                                                break;
                                            }
                                        }

                                    } else {

                                        // use previously-cached element index if available
                                        if ( usecache ) {

                                            // ...in a gzip-friendly way
                                            node = elem;
                                            outercache = node[ expando ] || ( node[ expando ] = {} );

                                            // support: ie <9 only
                                            // defend against cloned attroperties (jquery gh-1709)
                                            uniquecache = outercache[ node.uniqueid ] ||
                                                ( outercache[ node.uniqueid ] = {} );

                                            cache = uniquecache[ type ] || [];
                                            nodeindex = cache[ 0 ] === dirruns && cache[ 1 ];
                                            diff = nodeindex;
                                        }

                                        // xml :nth-child(...)
                                        // or :nth-last-child(...) or :nth(-last)?-of-type(...)
                                        if ( diff === false ) {

                                            // use the same loop as above to seek `elem` from the start
                                            while ( ( node = ++nodeindex && node && node[ dir ] ||
                                                ( diff = nodeindex = 0 ) || start.pop() ) ) {

                                                if ( ( oftype ?
                                                    node.nodename.tolowercase() === name :
                                                    node.nodetype === 1 ) &&
                                                    ++diff ) {

                                                    // cache the index of each encountered element
                                                    if ( usecache ) {
                                                        outercache = node[ expando ] ||
                                                            ( node[ expando ] = {} );

                                                        // support: ie <9 only
                                                        // defend against cloned attroperties (jquery gh-1709)
                                                        uniquecache = outercache[ node.uniqueid ] ||
                                                            ( outercache[ node.uniqueid ] = {} );

                                                        uniquecache[ type ] = [ dirruns, diff ];
                                                    }

                                                    if ( node === elem ) {
                                                        break;
                                                    }
                                                }
                                            }
                                        }
                                    }

                                    // incorporate the offset, then check against cycle size
                                    diff -= last;
                                    return diff === first || ( diff % first === 0 && diff / first >= 0 );
                                }
                            };
                    },

                    "pseudo": function( pseudo, argument ) {

                        // pseudo-class names are case-insensitive
                        // http://www.w3.org/tr/selectors/#pseudo-classes
                        // prioritize by case sensitivity in case custom pseudos are added with uppercase letters
                        // remember that setfilters inherits from pseudos
                        var args,
                            fn = expr.pseudos[ pseudo ] || expr.setfilters[ pseudo.tolowercase() ] ||
                                sizzle.error( "unsupported pseudo: " + pseudo );

                        // the user may use createpseudo to indicate that
                        // arguments are needed to create the filter function
                        // just as sizzle does
                        if ( fn[ expando ] ) {
                            return fn( argument );
                        }

                        // but maintain support for old signatures
                        if ( fn.length > 1 ) {
                            args = [ pseudo, pseudo, "", argument ];
                            return expr.setfilters.hasownproperty( pseudo.tolowercase() ) ?
                                markfunction( function( seed, matches ) {
                                    var idx,
                                        matched = fn( seed, argument ),
                                        i = matched.length;
                                    while ( i-- ) {
                                        idx = indexof( seed, matched[ i ] );
                                        seed[ idx ] = !( matches[ idx ] = matched[ i ] );
                                    }
                                } ) :
                                function( elem ) {
                                    return fn( elem, 0, args );
                                };
                        }

                        return fn;
                    }
                },

                pseudos: {

                    // potentially complex pseudos
                    "not": markfunction( function( selector ) {

                        // trim the selector passed to compile
                        // to avoid treating leading and trailing
                        // spaces as combinators
                        var input = [],
                            results = [],
                            matcher = compile( selector.replace( rtrim, "$1" ) );

                        return matcher[ expando ] ?
                            markfunction( function( seed, matches, _context, xml ) {
                                var elem,
                                    unmatched = matcher( seed, null, xml, [] ),
                                    i = seed.length;

                                // match elements unmatched by `matcher`
                                while ( i-- ) {
                                    if ( ( elem = unmatched[ i ] ) ) {
                                        seed[ i ] = !( matches[ i ] = elem );
                                    }
                                }
                            } ) :
                            function( elem, _context, xml ) {
                                input[ 0 ] = elem;
                                matcher( input, null, xml, results );

                                // don't keep the element (issue #299)
                                input[ 0 ] = null;
                                return !results.pop();
                            };
                    } ),

                    "has": markfunction( function( selector ) {
                        return function( elem ) {
                            return sizzle( selector, elem ).length > 0;
                        };
                    } ),

                    "contains": markfunction( function( text ) {
                        text = text.replace( runescape, funescape );
                        return function( elem ) {
                            return ( elem.textcontent || gettext( elem ) ).indexof( text ) > -1;
                        };
                    } ),

                    // "whether an element is represented by a :lang() selector
                    // is based solely on the element's language value
                    // being equal to the identifier c,
                    // or beginning with the identifier c immediately followed by "-".
                    // the matching of c against the element's language value is performed case-insensitively.
                    // the identifier c does not have to be a valid language name."
                    // http://www.w3.org/tr/selectors/#lang-pseudo
                    "lang": markfunction( function( lang ) {

                        // lang value must be a valid identifier
                        if ( !ridentifier.test( lang || "" ) ) {
                            sizzle.error( "unsupported lang: " + lang );
                        }
                        lang = lang.replace( runescape, funescape ).tolowercase();
                        return function( elem ) {
                            var elemlang;
                            do {
                                if ( ( elemlang = documentishtml ?
                                    elem.lang :
                                    elem.getattribute( "xml:lang" ) || elem.getattribute( "lang" ) ) ) {

                                    elemlang = elemlang.tolowercase();
                                    return elemlang === lang || elemlang.indexof( lang + "-" ) === 0;
                                }
                            } while ( ( elem = elem.parentnode ) && elem.nodetype === 1 );
                            return false;
                        };
                    } ),

                    // miscellaneous
                    "target": function( elem ) {
                        var hash = window.location && window.location.hash;
                        return hash && hash.slice( 1 ) === elem.id;
                    },

                    "root": function( elem ) {
                        return elem === docelem;
                    },

                    "focus": function( elem ) {
                        return elem === document.activeelement &&
                            ( !document.hasfocus || document.hasfocus() ) &&
                            !!( elem.type || elem.href || ~elem.tabindex );
                    },

                    // boolean properties
                    "enabled": createdisabledpseudo( false ),
                    "disabled": createdisabledpseudo( true ),

                    "checked": function( elem ) {

                        // in css3, :checked should return both checked and selected elements
                        // http://www.w3.org/tr/2011/rec-css3-selectors-20110929/#checked
                        var nodename = elem.nodename.tolowercase();
                        return ( nodename === "input" && !!elem.checked ) ||
                            ( nodename === "option" && !!elem.selected );
                    },

                    "selected": function( elem ) {

                        // accessing this property makes selected-by-default
                        // options in safari work properly
                        if ( elem.parentnode ) {
                            // eslint-disable-next-line no-unused-expressions
                            elem.parentnode.selectedindex;
                        }

                        return elem.selected === true;
                    },

                    // contents
                    "empty": function( elem ) {

                        // http://www.w3.org/tr/selectors/#empty-pseudo
                        // :empty is negated by element (1) or content nodes (text: 3; cdata: 4; entity ref: 5),
                        //   but not by others (comment: 8; processing instruction: 7; etc.)
                        // nodetype < 6 works because attributes (2) do not appear as children
                        for ( elem = elem.firstchild; elem; elem = elem.nextsibling ) {
                            if ( elem.nodetype < 6 ) {
                                return false;
                            }
                        }
                        return true;
                    },

                    "parent": function( elem ) {
                        return !expr.pseudos[ "empty" ]( elem );
                    },

                    // element/input types
                    "header": function( elem ) {
                        return rheader.test( elem.nodename );
                    },

                    "input": function( elem ) {
                        return rinputs.test( elem.nodename );
                    },

                    "button": function( elem ) {
                        var name = elem.nodename.tolowercase();
                        return name === "input" && elem.type === "button" || name === "button";
                    },

                    "text": function( elem ) {
                        var attr;
                        return elem.nodename.tolowercase() === "input" &&
                            elem.type === "text" &&

                            // support: ie<8
                            // new html5 attribute values (e.g., "search") appear with elem.type === "text"
                            ( ( attr = elem.getattribute( "type" ) ) == null ||
                                attr.tolowercase() === "text" );
                    },

                    // position-in-collection
                    "first": createpositionalpseudo( function() {
                        return [ 0 ];
                    } ),

                    "last": createpositionalpseudo( function( _matchindexes, length ) {
                        return [ length - 1 ];
                    } ),

                    "eq": createpositionalpseudo( function( _matchindexes, length, argument ) {
                        return [ argument < 0 ? argument + length : argument ];
                    } ),

                    "even": createpositionalpseudo( function( matchindexes, length ) {
                        var i = 0;
                        for ( ; i < length; i += 2 ) {
                            matchindexes.push( i );
                        }
                        return matchindexes;
                    } ),

                    "odd": createpositionalpseudo( function( matchindexes, length ) {
                        var i = 1;
                        for ( ; i < length; i += 2 ) {
                            matchindexes.push( i );
                        }
                        return matchindexes;
                    } ),

                    "lt": createpositionalpseudo( function( matchindexes, length, argument ) {
                        var i = argument < 0 ?
                            argument + length :
                            argument > length ?
                                length :
                                argument;
                        for ( ; --i >= 0; ) {
                            matchindexes.push( i );
                        }
                        return matchindexes;
                    } ),

                    "gt": createpositionalpseudo( function( matchindexes, length, argument ) {
                        var i = argument < 0 ? argument + length : argument;
                        for ( ; ++i < length; ) {
                            matchindexes.push( i );
                        }
                        return matchindexes;
                    } )
                }
            };

            expr.pseudos[ "nth" ] = expr.pseudos[ "eq" ];

// add button/input type pseudos
            for ( i in { radio: true, checkbox: true, file: true, password: true, image: true } ) {
                expr.pseudos[ i ] = createinputpseudo( i );
            }
            for ( i in { submit: true, reset: true } ) {
                expr.pseudos[ i ] = createbuttonpseudo( i );
            }

// easy api for creating new setfilters
            function setfilters() {}
            setfilters.prototype = expr.filters = expr.pseudos;
            expr.setfilters = new setfilters();

            tokenize = sizzle.tokenize = function( selector, parseonly ) {
                var matched, match, tokens, type,
                    sofar, groups, prefilters,
                    cached = tokencache[ selector + " " ];

                if ( cached ) {
                    return parseonly ? 0 : cached.slice( 0 );
                }

                sofar = selector;
                groups = [];
                prefilters = expr.prefilter;

                while ( sofar ) {

                    // comma and first run
                    if ( !matched || ( match = rcomma.exec( sofar ) ) ) {
                        if ( match ) {

                            // don't consume trailing commas as valid
                            sofar = sofar.slice( match[ 0 ].length ) || sofar;
                        }
                        groups.push( ( tokens = [] ) );
                    }

                    matched = false;

                    // combinators
                    if ( ( match = rcombinators.exec( sofar ) ) ) {
                        matched = match.shift();
                        tokens.push( {
                            value: matched,

                            // cast descendant combinators to space
                            type: match[ 0 ].replace( rtrim, " " )
                        } );
                        sofar = sofar.slice( matched.length );
                    }

                    // filters
                    for ( type in expr.filter ) {
                        if ( ( match = matchexpr[ type ].exec( sofar ) ) && ( !prefilters[ type ] ||
                            ( match = prefilters[ type ]( match ) ) ) ) {
                            matched = match.shift();
                            tokens.push( {
                                value: matched,
                                type: type,
                                matches: match
                            } );
                            sofar = sofar.slice( matched.length );
                        }
                    }

                    if ( !matched ) {
                        break;
                    }
                }

                // return the length of the invalid excess
                // if we're just parsing
                // otherwise, throw an error or return tokens
                return parseonly ?
                    sofar.length :
                    sofar ?
                        sizzle.error( selector ) :

                        // cache the tokens
                        tokencache( selector, groups ).slice( 0 );
            };

            function toselector( tokens ) {
                var i = 0,
                    len = tokens.length,
                    selector = "";
                for ( ; i < len; i++ ) {
                    selector += tokens[ i ].value;
                }
                return selector;
            }

            function addcombinator( matcher, combinator, base ) {
                var dir = combinator.dir,
                    skip = combinator.next,
                    key = skip || dir,
                    checknonelements = base && key === "parentnode",
                    donename = done++;

                return combinator.first ?

                    // check against closest ancestor/preceding element
                    function( elem, context, xml ) {
                        while ( ( elem = elem[ dir ] ) ) {
                            if ( elem.nodetype === 1 || checknonelements ) {
                                return matcher( elem, context, xml );
                            }
                        }
                        return false;
                    } :

                    // check against all ancestor/preceding elements
                    function( elem, context, xml ) {
                        var oldcache, uniquecache, outercache,
                            newcache = [ dirruns, donename ];

                        // we can't set arbitrary data on xml nodes, so they don't benefit from combinator caching
                        if ( xml ) {
                            while ( ( elem = elem[ dir ] ) ) {
                                if ( elem.nodetype === 1 || checknonelements ) {
                                    if ( matcher( elem, context, xml ) ) {
                                        return true;
                                    }
                                }
                            }
                        } else {
                            while ( ( elem = elem[ dir ] ) ) {
                                if ( elem.nodetype === 1 || checknonelements ) {
                                    outercache = elem[ expando ] || ( elem[ expando ] = {} );

                                    // support: ie <9 only
                                    // defend against cloned attroperties (jquery gh-1709)
                                    uniquecache = outercache[ elem.uniqueid ] ||
                                        ( outercache[ elem.uniqueid ] = {} );

                                    if ( skip && skip === elem.nodename.tolowercase() ) {
                                        elem = elem[ dir ] || elem;
                                    } else if ( ( oldcache = uniquecache[ key ] ) &&
                                        oldcache[ 0 ] === dirruns && oldcache[ 1 ] === donename ) {

                                        // assign to newcache so results back-propagate to previous elements
                                        return ( newcache[ 2 ] = oldcache[ 2 ] );
                                    } else {

                                        // reuse newcache so results back-propagate to previous elements
                                        uniquecache[ key ] = newcache;

                                        // a match means we're done; a fail means we have to keep checking
                                        if ( ( newcache[ 2 ] = matcher( elem, context, xml ) ) ) {
                                            return true;
                                        }
                                    }
                                }
                            }
                        }
                        return false;
                    };
            }

            function elementmatcher( matchers ) {
                return matchers.length > 1 ?
                    function( elem, context, xml ) {
                        var i = matchers.length;
                        while ( i-- ) {
                            if ( !matchers[ i ]( elem, context, xml ) ) {
                                return false;
                            }
                        }
                        return true;
                    } :
                    matchers[ 0 ];
            }

            function multiplecontexts( selector, contexts, results ) {
                var i = 0,
                    len = contexts.length;
                for ( ; i < len; i++ ) {
                    sizzle( selector, contexts[ i ], results );
                }
                return results;
            }

            function condense( unmatched, map, filter, context, xml ) {
                var elem,
                    newunmatched = [],
                    i = 0,
                    len = unmatched.length,
                    mapped = map != null;

                for ( ; i < len; i++ ) {
                    if ( ( elem = unmatched[ i ] ) ) {
                        if ( !filter || filter( elem, context, xml ) ) {
                            newunmatched.push( elem );
                            if ( mapped ) {
                                map.push( i );
                            }
                        }
                    }
                }

                return newunmatched;
            }

            function setmatcher( prefilter, selector, matcher, postfilter, postfinder, postselector ) {
                if ( postfilter && !postfilter[ expando ] ) {
                    postfilter = setmatcher( postfilter );
                }
                if ( postfinder && !postfinder[ expando ] ) {
                    postfinder = setmatcher( postfinder, postselector );
                }
                return markfunction( function( seed, results, context, xml ) {
                    var temp, i, elem,
                        premap = [],
                        postmap = [],
                        preexisting = results.length,

                        // get initial elements from seed or context
                        elems = seed || multiplecontexts(
                            selector || "*",
                            context.nodetype ? [ context ] : context,
                            []
                        ),

                        // prefilter to get matcher input, preserving a map for seed-results synchronization
                        matcherin = prefilter && ( seed || !selector ) ?
                            condense( elems, premap, prefilter, context, xml ) :
                            elems,

                        matcherout = matcher ?

                            // if we have a postfinder, or filtered seed, or non-seed postfilter or preexisting results,
                            postfinder || ( seed ? prefilter : preexisting || postfilter ) ?

                                // ...intermediate processing is necessary
                                [] :

                                // ...otherwise use results directly
                                results :
                            matcherin;

                    // find primary matches
                    if ( matcher ) {
                        matcher( matcherin, matcherout, context, xml );
                    }

                    // apply postfilter
                    if ( postfilter ) {
                        temp = condense( matcherout, postmap );
                        postfilter( temp, [], context, xml );

                        // un-match failing elements by moving them back to matcherin
                        i = temp.length;
                        while ( i-- ) {
                            if ( ( elem = temp[ i ] ) ) {
                                matcherout[ postmap[ i ] ] = !( matcherin[ postmap[ i ] ] = elem );
                            }
                        }
                    }

                    if ( seed ) {
                        if ( postfinder || prefilter ) {
                            if ( postfinder ) {

                                // get the final matcherout by condensing this intermediate into postfinder contexts
                                temp = [];
                                i = matcherout.length;
                                while ( i-- ) {
                                    if ( ( elem = matcherout[ i ] ) ) {

                                        // restore matcherin since elem is not yet a final match
                                        temp.push( ( matcherin[ i ] = elem ) );
                                    }
                                }
                                postfinder( null, ( matcherout = [] ), temp, xml );
                            }

                            // move matched elements from seed to results to keep them synchronized
                            i = matcherout.length;
                            while ( i-- ) {
                                if ( ( elem = matcherout[ i ] ) &&
                                    ( temp = postfinder ? indexof( seed, elem ) : premap[ i ] ) > -1 ) {

                                    seed[ temp ] = !( results[ temp ] = elem );
                                }
                            }
                        }

                        // add elements to results, through postfinder if defined
                    } else {
                        matcherout = condense(
                            matcherout === results ?
                                matcherout.splice( preexisting, matcherout.length ) :
                                matcherout
                        );
                        if ( postfinder ) {
                            postfinder( null, results, matcherout, xml );
                        } else {
                            push.apply( results, matcherout );
                        }
                    }
                } );
            }

            function matcherfromtokens( tokens ) {
                var checkcontext, matcher, j,
                    len = tokens.length,
                    leadingrelative = expr.relative[ tokens[ 0 ].type ],
                    implicitrelative = leadingrelative || expr.relative[ " " ],
                    i = leadingrelative ? 1 : 0,

                    // the foundational matcher ensures that elements are reachable from top-level context(s)
                    matchcontext = addcombinator( function( elem ) {
                        return elem === checkcontext;
                    }, implicitrelative, true ),
                    matchanycontext = addcombinator( function( elem ) {
                        return indexof( checkcontext, elem ) > -1;
                    }, implicitrelative, true ),
                    matchers = [ function( elem, context, xml ) {
                        var ret = ( !leadingrelative && ( xml || context !== outermostcontext ) ) || (
                            ( checkcontext = context ).nodetype ?
                                matchcontext( elem, context, xml ) :
                                matchanycontext( elem, context, xml ) );

                        // avoid hanging onto element (issue #299)
                        checkcontext = null;
                        return ret;
                    } ];

                for ( ; i < len; i++ ) {
                    if ( ( matcher = expr.relative[ tokens[ i ].type ] ) ) {
                        matchers = [ addcombinator( elementmatcher( matchers ), matcher ) ];
                    } else {
                        matcher = expr.filter[ tokens[ i ].type ].apply( null, tokens[ i ].matches );

                        // return special upon seeing a positional matcher
                        if ( matcher[ expando ] ) {

                            // find the next relative operator (if any) for proper handling
                            j = ++i;
                            for ( ; j < len; j++ ) {
                                if ( expr.relative[ tokens[ j ].type ] ) {
                                    break;
                                }
                            }
                            return setmatcher(
                                i > 1 && elementmatcher( matchers ),
                                i > 1 && toselector(

                                // if the preceding token was a descendant combinator, insert an implicit any-element `*`
                                tokens
                                    .slice( 0, i - 1 )
                                    .concat( { value: tokens[ i - 2 ].type === " " ? "*" : "" } )
                                ).replace( rtrim, "$1" ),
                                matcher,
                                i < j && matcherfromtokens( tokens.slice( i, j ) ),
                                j < len && matcherfromtokens( ( tokens = tokens.slice( j ) ) ),
                                j < len && toselector( tokens )
                            );
                        }
                        matchers.push( matcher );
                    }
                }

                return elementmatcher( matchers );
            }

            function matcherfromgroupmatchers( elementmatchers, setmatchers ) {
                var byset = setmatchers.length > 0,
                    byelement = elementmatchers.length > 0,
                    supermatcher = function( seed, context, xml, results, outermost ) {
                        var elem, j, matcher,
                            matchedcount = 0,
                            i = "0",
                            unmatched = seed && [],
                            setmatched = [],
                            contextbackup = outermostcontext,

                            // we must always have either seed elements or outermost context
                            elems = seed || byelement && expr.find[ "tag" ]( "*", outermost ),

                            // use integer dirruns iff this is the outermost matcher
                            dirrunsunique = ( dirruns += contextbackup == null ? 1 : math.random() || 0.1 ),
                            len = elems.length;

                        if ( outermost ) {

                            // support: ie 11+, edge 17 - 18+
                            // ie/edge sometimes throw a "permission denied" error when strict-comparing
                            // two documents; shallow comparisons work.
                            // eslint-disable-next-line eqeqeq
                            outermostcontext = context == document || context || outermost;
                        }

                        // add elements passing elementmatchers directly to results
                        // support: ie<9, safari
                        // tolerate nodelist properties (ie: "length"; safari: <number>) matching elements by id
                        for ( ; i !== len && ( elem = elems[ i ] ) != null; i++ ) {
                            if ( byelement && elem ) {
                                j = 0;

                                // support: ie 11+, edge 17 - 18+
                                // ie/edge sometimes throw a "permission denied" error when strict-comparing
                                // two documents; shallow comparisons work.
                                // eslint-disable-next-line eqeqeq
                                if ( !context && elem.ownerdocument != document ) {
                                    setdocument( elem );
                                    xml = !documentishtml;
                                }
                                while ( ( matcher = elementmatchers[ j++ ] ) ) {
                                    if ( matcher( elem, context || document, xml ) ) {
                                        results.push( elem );
                                        break;
                                    }
                                }
                                if ( outermost ) {
                                    dirruns = dirrunsunique;
                                }
                            }

                            // track unmatched elements for set filters
                            if ( byset ) {

                                // they will have gone through all possible matchers
                                if ( ( elem = !matcher && elem ) ) {
                                    matchedcount--;
                                }

                                // lengthen the array for every element, matched or not
                                if ( seed ) {
                                    unmatched.push( elem );
                                }
                            }
                        }

                        // `i` is now the count of elements visited above, and adding it to `matchedcount`
                        // makes the latter nonnegative.
                        matchedcount += i;

                        // apply set filters to unmatched elements
                        // note: this can be skipped if there are no unmatched elements (i.e., `matchedcount`
                        // equals `i`), unless we didn't visit _any_ elements in the above loop because we have
                        // no element matchers and no seed.
                        // incrementing an initially-string "0" `i` allows `i` to remain a string only in that
                        // case, which will result in a "00" `matchedcount` that differs from `i` but is also
                        // numerically zero.
                        if ( byset && i !== matchedcount ) {
                            j = 0;
                            while ( ( matcher = setmatchers[ j++ ] ) ) {
                                matcher( unmatched, setmatched, context, xml );
                            }

                            if ( seed ) {

                                // reintegrate element matches to eliminate the need for sorting
                                if ( matchedcount > 0 ) {
                                    while ( i-- ) {
                                        if ( !( unmatched[ i ] || setmatched[ i ] ) ) {
                                            setmatched[ i ] = pop.call( results );
                                        }
                                    }
                                }

                                // discard index placeholder values to get only actual matches
                                setmatched = condense( setmatched );
                            }

                            // add matches to results
                            push.apply( results, setmatched );

                            // seedless set matches succeeding multiple successful matchers stipulate sorting
                            if ( outermost && !seed && setmatched.length > 0 &&
                                ( matchedcount + setmatchers.length ) > 1 ) {

                                sizzle.uniquesort( results );
                            }
                        }

                        // override manipulation of globals by nested matchers
                        if ( outermost ) {
                            dirruns = dirrunsunique;
                            outermostcontext = contextbackup;
                        }

                        return unmatched;
                    };

                return byset ?
                    markfunction( supermatcher ) :
                    supermatcher;
            }

            compile = sizzle.compile = function( selector, match /* internal use only */ ) {
                var i,
                    setmatchers = [],
                    elementmatchers = [],
                    cached = compilercache[ selector + " " ];

                if ( !cached ) {

                    // generate a function of recursive functions that can be used to check each element
                    if ( !match ) {
                        match = tokenize( selector );
                    }
                    i = match.length;
                    while ( i-- ) {
                        cached = matcherfromtokens( match[ i ] );
                        if ( cached[ expando ] ) {
                            setmatchers.push( cached );
                        } else {
                            elementmatchers.push( cached );
                        }
                    }

                    // cache the compiled function
                    cached = compilercache(
                        selector,
                        matcherfromgroupmatchers( elementmatchers, setmatchers )
                    );

                    // save selector and tokenization
                    cached.selector = selector;
                }
                return cached;
            };

            /**
             * a low-level selection function that works with sizzle's compiled
             *  selector functions
             * @param {string|function} selector a selector or a pre-compiled
             *  selector function built with sizzle.compile
             * @param {element} context
             * @param {array} [results]
             * @param {array} [seed] a set of elements to match against
             */
            select = sizzle.select = function( selector, context, results, seed ) {
                var i, tokens, token, type, find,
                    compiled = typeof selector === "function" && selector,
                    match = !seed && tokenize( ( selector = compiled.selector || selector ) );

                results = results || [];

                // try to minimize operations if there is only one selector in the list and no seed
                // (the latter of which guarantees us context)
                if ( match.length === 1 ) {

                    // reduce context if the leading compound selector is an id
                    tokens = match[ 0 ] = match[ 0 ].slice( 0 );
                    if ( tokens.length > 2 && ( token = tokens[ 0 ] ).type === "id" &&
                        context.nodetype === 9 && documentishtml && expr.relative[ tokens[ 1 ].type ] ) {

                        context = ( expr.find[ "id" ]( token.matches[ 0 ]
                            .replace( runescape, funescape ), context ) || [] )[ 0 ];
                        if ( !context ) {
                            return results;

                            // precompiled matchers will still verify ancestry, so step up a level
                        } else if ( compiled ) {
                            context = context.parentnode;
                        }

                        selector = selector.slice( tokens.shift().value.length );
                    }

                    // fetch a seed set for right-to-left matching
                    i = matchexpr[ "needscontext" ].test( selector ) ? 0 : tokens.length;
                    while ( i-- ) {
                        token = tokens[ i ];

                        // abort if we hit a combinator
                        if ( expr.relative[ ( type = token.type ) ] ) {
                            break;
                        }
                        if ( ( find = expr.find[ type ] ) ) {

                            // search, expanding context for leading sibling combinators
                            if ( ( seed = find(
                                token.matches[ 0 ].replace( runescape, funescape ),
                                rsibling.test( tokens[ 0 ].type ) && testcontext( context.parentnode ) ||
                                context
                            ) ) ) {

                                // if seed is empty or no tokens remain, we can return early
                                tokens.splice( i, 1 );
                                selector = seed.length && toselector( tokens );
                                if ( !selector ) {
                                    push.apply( results, seed );
                                    return results;
                                }

                                break;
                            }
                        }
                    }
                }

                // compile and execute a filtering function if one is not provided
                // provide `match` to avoid retokenization if we modified the selector above
                ( compiled || compile( selector, match ) )(
                    seed,
                    context,
                    !documentishtml,
                    results,
                    !context || rsibling.test( selector ) && testcontext( context.parentnode ) || context
                );
                return results;
            };

// one-time assignments

// sort stability
            support.sortstable = expando.split( "" ).sort( sortorder ).join( "" ) === expando;

// support: chrome 14-35+
// always assume duplicates if they aren't passed to the comparison function
            support.detectduplicates = !!hasduplicate;

// initialize against the default document
            setdocument();

// support: webkit<537.32 - safari 6.0.3/chrome 25 (fixed in chrome 27)
// detached nodes confoundingly follow *each other*
            support.sortdetached = assert( function( el ) {

                // should return 1, but returns 4 (following)
                return el.comparedocumentposition( document.createelement( "fieldset" ) ) & 1;
            } );

// support: ie<8
// prevent attribute/property "interpolation"
// https://msdn.microsoft.com/en-us/library/ms536429%28vs.85%29.aspx
            if ( !assert( function( el ) {
                el.innerhtml = "<a href='#'></a>";
                return el.firstchild.getattribute( "href" ) === "#";
            } ) ) {
                addhandle( "type|href|height|width", function( elem, name, isxml ) {
                    if ( !isxml ) {
                        return elem.getattribute( name, name.tolowercase() === "type" ? 1 : 2 );
                    }
                } );
            }

// support: ie<9
// use defaultvalue in place of getattribute("value")
            if ( !support.attributes || !assert( function( el ) {
                el.innerhtml = "<input/>";
                el.firstchild.setattribute( "value", "" );
                return el.firstchild.getattribute( "value" ) === "";
            } ) ) {
                addhandle( "value", function( elem, _name, isxml ) {
                    if ( !isxml && elem.nodename.tolowercase() === "input" ) {
                        return elem.defaultvalue;
                    }
                } );
            }

// support: ie<9
// use getattributenode to fetch booleans when getattribute lies
            if ( !assert( function( el ) {
                return el.getattribute( "disabled" ) == null;
            } ) ) {
                addhandle( booleans, function( elem, name, isxml ) {
                    var val;
                    if ( !isxml ) {
                        return elem[ name ] === true ? name.tolowercase() :
                            ( val = elem.getattributenode( name ) ) && val.specified ?
                                val.value :
                                null;
                    }
                } );
            }

            return sizzle;

        } )( window );



    jquery.find = sizzle;
    jquery.expr = sizzle.selectors;

// deprecated
    jquery.expr[ ":" ] = jquery.expr.pseudos;
    jquery.uniquesort = jquery.unique = sizzle.uniquesort;
    jquery.text = sizzle.gettext;
    jquery.isxmldoc = sizzle.isxml;
    jquery.contains = sizzle.contains;
    jquery.escapeselector = sizzle.escape;




    var dir = function( elem, dir, until ) {
        var matched = [],
            truncate = until !== undefined;

        while ( ( elem = elem[ dir ] ) && elem.nodetype !== 9 ) {
            if ( elem.nodetype === 1 ) {
                if ( truncate && jquery( elem ).is( until ) ) {
                    break;
                }
                matched.push( elem );
            }
        }
        return matched;
    };


    var siblings = function( n, elem ) {
        var matched = [];

        for ( ; n; n = n.nextsibling ) {
            if ( n.nodetype === 1 && n !== elem ) {
                matched.push( n );
            }
        }

        return matched;
    };


    var rneedscontext = jquery.expr.match.needscontext;



    function nodename( elem, name ) {

        return elem.nodename && elem.nodename.tolowercase() === name.tolowercase();

    };
    var rsingletag = ( /^<([a-z][^\/\0>:\x20\t\r\n\f]*)[\x20\t\r\n\f]*\/?>(?:<\/\1>|)$/i );



// implement the identical functionality for filter and not
    function winnow( elements, qualifier, not ) {
        if ( isfunction( qualifier ) ) {
            return jquery.grep( elements, function( elem, i ) {
                return !!qualifier.call( elem, i, elem ) !== not;
            } );
        }

        // single element
        if ( qualifier.nodetype ) {
            return jquery.grep( elements, function( elem ) {
                return ( elem === qualifier ) !== not;
            } );
        }

        // arraylike of elements (jquery, arguments, array)
        if ( typeof qualifier !== "string" ) {
            return jquery.grep( elements, function( elem ) {
                return ( indexof.call( qualifier, elem ) > -1 ) !== not;
            } );
        }

        // filtered directly for both simple and complex selectors
        return jquery.filter( qualifier, elements, not );
    }

    jquery.filter = function( expr, elems, not ) {
        var elem = elems[ 0 ];

        if ( not ) {
            expr = ":not(" + expr + ")";
        }

        if ( elems.length === 1 && elem.nodetype === 1 ) {
            return jquery.find.matchesselector( elem, expr ) ? [ elem ] : [];
        }

        return jquery.find.matches( expr, jquery.grep( elems, function( elem ) {
            return elem.nodetype === 1;
        } ) );
    };

    jquery.fn.extend( {
        find: function( selector ) {
            var i, ret,
                len = this.length,
                self = this;

            if ( typeof selector !== "string" ) {
                return this.pushstack( jquery( selector ).filter( function() {
                    for ( i = 0; i < len; i++ ) {
                        if ( jquery.contains( self[ i ], this ) ) {
                            return true;
                        }
                    }
                } ) );
            }

            ret = this.pushstack( [] );

            for ( i = 0; i < len; i++ ) {
                jquery.find( selector, self[ i ], ret );
            }

            return len > 1 ? jquery.uniquesort( ret ) : ret;
        },
        filter: function( selector ) {
            return this.pushstack( winnow( this, selector || [], false ) );
        },
        not: function( selector ) {
            return this.pushstack( winnow( this, selector || [], true ) );
        },
        is: function( selector ) {
            return !!winnow(
                this,

                // if this is a positional/relative selector, check membership in the returned set
                // so $("p:first").is("p:last") won't return true for a doc with two "p".
                typeof selector === "string" && rneedscontext.test( selector ) ?
                    jquery( selector ) :
                    selector || [],
                false
            ).length;
        }
    } );


// initialize a jquery object


// a central reference to the root jquery(document)
    var rootjquery,

        // a simple way to check for html strings
        // prioritize #id over <tag> to avoid xss via location.hash (#9521)
        // strict html recognition (#11290: must start with <)
        // shortcut simple #id case for speed
        rquickexpr = /^(?:\s*(<[\w\w]+>)[^>]*|#([\w-]+))$/,

        init = jquery.fn.init = function( selector, context, root ) {
            var match, elem;

            // handle: $(""), $(null), $(undefined), $(false)
            if ( !selector ) {
                return this;
            }

            // method init() accepts an alternate rootjquery
            // so migrate can support jquery.sub (gh-2101)
            root = root || rootjquery;

            // handle html strings
            if ( typeof selector === "string" ) {
                if ( selector[ 0 ] === "<" &&
                    selector[ selector.length - 1 ] === ">" &&
                    selector.length >= 3 ) {

                    // assume that strings that start and end with <> are html and skip the regex check
                    match = [ null, selector, null ];

                } else {
                    match = rquickexpr.exec( selector );
                }

                // match html or make sure no context is specified for #id
                if ( match && ( match[ 1 ] || !context ) ) {

                    // handle: $(html) -> $(array)
                    if ( match[ 1 ] ) {
                        context = context instanceof jquery ? context[ 0 ] : context;

                        // option to run scripts is true for back-compat
                        // intentionally let the error be thrown if parsehtml is not present
                        jquery.merge( this, jquery.parsehtml(
                            match[ 1 ],
                            context && context.nodetype ? context.ownerdocument || context : document,
                            true
                        ) );

                        // handle: $(html, props)
                        if ( rsingletag.test( match[ 1 ] ) && jquery.isplainobject( context ) ) {
                            for ( match in context ) {

                                // properties of context are called as methods if possible
                                if ( isfunction( this[ match ] ) ) {
                                    this[ match ]( context[ match ] );

                                    // ...and otherwise set as attributes
                                } else {
                                    this.attr( match, context[ match ] );
                                }
                            }
                        }

                        return this;

                        // handle: $(#id)
                    } else {
                        elem = document.getelementbyid( match[ 2 ] );

                        if ( elem ) {

                            // inject the element directly into the jquery object
                            this[ 0 ] = elem;
                            this.length = 1;
                        }
                        return this;
                    }

                    // handle: $(expr, $(...))
                } else if ( !context || context.jquery ) {
                    return ( context || root ).find( selector );

                    // handle: $(expr, context)
                    // (which is just equivalent to: $(context).find(expr)
                } else {
                    return this.constructor( context ).find( selector );
                }

                // handle: $(domelement)
            } else if ( selector.nodetype ) {
                this[ 0 ] = selector;
                this.length = 1;
                return this;

                // handle: $(function)
                // shortcut for document ready
            } else if ( isfunction( selector ) ) {
                return root.ready !== undefined ?
                    root.ready( selector ) :

                    // execute immediately if ready is not present
                    selector( jquery );
            }

            return jquery.makearray( selector, this );
        };

// give the init function the jquery prototype for later instantiation
    init.prototype = jquery.fn;

// initialize central reference
    rootjquery = jquery( document );


    var rparentsprev = /^(?:parents|prev(?:until|all))/,

        // methods guaranteed to produce a unique set when starting from a unique set
        guaranteedunique = {
            children: true,
            contents: true,
            next: true,
            prev: true
        };

    jquery.fn.extend( {
        has: function( target ) {
            var targets = jquery( target, this ),
                l = targets.length;

            return this.filter( function() {
                var i = 0;
                for ( ; i < l; i++ ) {
                    if ( jquery.contains( this, targets[ i ] ) ) {
                        return true;
                    }
                }
            } );
        },

        closest: function( selectors, context ) {
            var cur,
                i = 0,
                l = this.length,
                matched = [],
                targets = typeof selectors !== "string" && jquery( selectors );

            // positional selectors never match, since there's no _selection_ context
            if ( !rneedscontext.test( selectors ) ) {
                for ( ; i < l; i++ ) {
                    for ( cur = this[ i ]; cur && cur !== context; cur = cur.parentnode ) {

                        // always skip document fragments
                        if ( cur.nodetype < 11 && ( targets ?
                            targets.index( cur ) > -1 :

                            // don't pass non-elements to sizzle
                            cur.nodetype === 1 &&
                            jquery.find.matchesselector( cur, selectors ) ) ) {

                            matched.push( cur );
                            break;
                        }
                    }
                }
            }

            return this.pushstack( matched.length > 1 ? jquery.uniquesort( matched ) : matched );
        },

        // determine the position of an element within the set
        index: function( elem ) {

            // no argument, return index in parent
            if ( !elem ) {
                return ( this[ 0 ] && this[ 0 ].parentnode ) ? this.first().prevall().length : -1;
            }

            // index in selector
            if ( typeof elem === "string" ) {
                return indexof.call( jquery( elem ), this[ 0 ] );
            }

            // locate the position of the desired element
            return indexof.call( this,

                // if it receives a jquery object, the first element is used
                elem.jquery ? elem[ 0 ] : elem
            );
        },

        add: function( selector, context ) {
            return this.pushstack(
                jquery.uniquesort(
                    jquery.merge( this.get(), jquery( selector, context ) )
                )
            );
        },

        addback: function( selector ) {
            return this.add( selector == null ?
                this.prevobject : this.prevobject.filter( selector )
            );
        }
    } );

    function sibling( cur, dir ) {
        while ( ( cur = cur[ dir ] ) && cur.nodetype !== 1 ) {}
        return cur;
    }

    jquery.each( {
        parent: function( elem ) {
            var parent = elem.parentnode;
            return parent && parent.nodetype !== 11 ? parent : null;
        },
        parents: function( elem ) {
            return dir( elem, "parentnode" );
        },
        parentsuntil: function( elem, _i, until ) {
            return dir( elem, "parentnode", until );
        },
        next: function( elem ) {
            return sibling( elem, "nextsibling" );
        },
        prev: function( elem ) {
            return sibling( elem, "previoussibling" );
        },
        nextall: function( elem ) {
            return dir( elem, "nextsibling" );
        },
        prevall: function( elem ) {
            return dir( elem, "previoussibling" );
        },
        nextuntil: function( elem, _i, until ) {
            return dir( elem, "nextsibling", until );
        },
        prevuntil: function( elem, _i, until ) {
            return dir( elem, "previoussibling", until );
        },
        siblings: function( elem ) {
            return siblings( ( elem.parentnode || {} ).firstchild, elem );
        },
        children: function( elem ) {
            return siblings( elem.firstchild );
        },
        contents: function( elem ) {
            if ( elem.contentdocument != null &&

                // support: ie 11+
                // <object> elements with no `data` attribute has an object
                // `contentdocument` with a `null` prototype.
                getproto( elem.contentdocument ) ) {

                return elem.contentdocument;
            }

            // support: ie 9 - 11 only, ios 7 only, android browser <=4.3 only
            // treat the template element as a regular one in browsers that
            // don't support it.
            if ( nodename( elem, "template" ) ) {
                elem = elem.content || elem;
            }

            return jquery.merge( [], elem.childnodes );
        }
    }, function( name, fn ) {
        jquery.fn[ name ] = function( until, selector ) {
            var matched = jquery.map( this, fn, until );

            if ( name.slice( -5 ) !== "until" ) {
                selector = until;
            }

            if ( selector && typeof selector === "string" ) {
                matched = jquery.filter( selector, matched );
            }

            if ( this.length > 1 ) {

                // remove duplicates
                if ( !guaranteedunique[ name ] ) {
                    jquery.uniquesort( matched );
                }

                // reverse order for parents* and prev-derivatives
                if ( rparentsprev.test( name ) ) {
                    matched.reverse();
                }
            }

            return this.pushstack( matched );
        };
    } );
    var rnothtmlwhite = ( /[^\x20\t\r\n\f]+/g );



// convert string-formatted options into object-formatted ones
    function createoptions( options ) {
        var object = {};
        jquery.each( options.match( rnothtmlwhite ) || [], function( _, flag ) {
            object[ flag ] = true;
        } );
        return object;
    }

    /*
 * create a callback list using the following parameters:
 *
 *	options: an optional list of space-separated options that will change how
 *			the callback list behaves or a more traditional option object
 *
 * by default a callback list will act like an event callback list and can be
 * "fired" multiple times.
 *
 * possible options:
 *
 *	once:			will ensure the callback list can only be fired once (like a deferred)
 *
 *	memory:			will keep track of previous values and will call any callback added
 *					after the list has been fired right away with the latest "memorized"
 *					values (like a deferred)
 *
 *	unique:			will ensure a callback can only be added once (no duplicate in the list)
 *
 *	stoponfalse:	interrupt callings when a callback returns false
 *
 */
    jquery.callbacks = function( options ) {

        // convert options from string-formatted to object-formatted if needed
        // (we check in cache first)
        options = typeof options === "string" ?
            createoptions( options ) :
            jquery.extend( {}, options );

        var // flag to know if list is currently firing
            firing,

            // last fire value for non-forgettable lists
            memory,

            // flag to know if list was already fired
            fired,

            // flag to prevent firing
            locked,

            // actual callback list
            list = [],

            // queue of execution data for repeatable lists
            queue = [],

            // index of currently firing callback (modified by add/remove as needed)
            firingindex = -1,

            // fire callbacks
            fire = function() {

                // enforce single-firing
                locked = locked || options.once;

                // execute callbacks for all pending executions,
                // respecting firingindex overrides and runtime changes
                fired = firing = true;
                for ( ; queue.length; firingindex = -1 ) {
                    memory = queue.shift();
                    while ( ++firingindex < list.length ) {

                        // run callback and check for early termination
                        if ( list[ firingindex ].apply( memory[ 0 ], memory[ 1 ] ) === false &&
                            options.stoponfalse ) {

                            // jump to end and forget the data so .add doesn't re-fire
                            firingindex = list.length;
                            memory = false;
                        }
                    }
                }

                // forget the data if we're done with it
                if ( !options.memory ) {
                    memory = false;
                }

                firing = false;

                // clean up if we're done firing for good
                if ( locked ) {

                    // keep an empty list if we have data for future add calls
                    if ( memory ) {
                        list = [];

                        // otherwise, this object is spent
                    } else {
                        list = "";
                    }
                }
            },

            // actual callbacks object
            self = {

                // add a callback or a collection of callbacks to the list
                add: function() {
                    if ( list ) {

                        // if we have memory from a past run, we should fire after adding
                        if ( memory && !firing ) {
                            firingindex = list.length - 1;
                            queue.push( memory );
                        }

                        ( function add( args ) {
                            jquery.each( args, function( _, arg ) {
                                if ( isfunction( arg ) ) {
                                    if ( !options.unique || !self.has( arg ) ) {
                                        list.push( arg );
                                    }
                                } else if ( arg && arg.length && totype( arg ) !== "string" ) {

                                    // inspect recursively
                                    add( arg );
                                }
                            } );
                        } )( arguments );

                        if ( memory && !firing ) {
                            fire();
                        }
                    }
                    return this;
                },

                // remove a callback from the list
                remove: function() {
                    jquery.each( arguments, function( _, arg ) {
                        var index;
                        while ( ( index = jquery.inarray( arg, list, index ) ) > -1 ) {
                            list.splice( index, 1 );

                            // handle firing indexes
                            if ( index <= firingindex ) {
                                firingindex--;
                            }
                        }
                    } );
                    return this;
                },

                // check if a given callback is in the list.
                // if no argument is given, return whether or not list has callbacks attached.
                has: function( fn ) {
                    return fn ?
                        jquery.inarray( fn, list ) > -1 :
                        list.length > 0;
                },

                // remove all callbacks from the list
                empty: function() {
                    if ( list ) {
                        list = [];
                    }
                    return this;
                },

                // disable .fire and .add
                // abort any current/pending executions
                // clear all callbacks and values
                disable: function() {
                    locked = queue = [];
                    list = memory = "";
                    return this;
                },
                disabled: function() {
                    return !list;
                },

                // disable .fire
                // also disable .add unless we have memory (since it would have no effect)
                // abort any pending executions
                lock: function() {
                    locked = queue = [];
                    if ( !memory && !firing ) {
                        list = memory = "";
                    }
                    return this;
                },
                locked: function() {
                    return !!locked;
                },

                // call all callbacks with the given context and arguments
                firewith: function( context, args ) {
                    if ( !locked ) {
                        args = args || [];
                        args = [ context, args.slice ? args.slice() : args ];
                        queue.push( args );
                        if ( !firing ) {
                            fire();
                        }
                    }
                    return this;
                },

                // call all the callbacks with the given arguments
                fire: function() {
                    self.firewith( this, arguments );
                    return this;
                },

                // to know if the callbacks have already been called at least once
                fired: function() {
                    return !!fired;
                }
            };

        return self;
    };


    function identity( v ) {
        return v;
    }
    function thrower( ex ) {
        throw ex;
    }

    function adoptvalue( value, resolve, reject, novalue ) {
        var method;

        try {

            // check for promise aspect first to privilege synchronous behavior
            if ( value && isfunction( ( method = value.promise ) ) ) {
                method.call( value ).done( resolve ).fail( reject );

                // other thenables
            } else if ( value && isfunction( ( method = value.then ) ) ) {
                method.call( value, resolve, reject );

                // other non-thenables
            } else {

                // control `resolve` arguments by letting array#slice cast boolean `novalue` to integer:
                // * false: [ value ].slice( 0 ) => resolve( value )
                // * true: [ value ].slice( 1 ) => resolve()
                resolve.apply( undefined, [ value ].slice( novalue ) );
            }

            // for promises/a+, convert exceptions into rejections
            // since jquery.when doesn't unwrap thenables, we can skip the extra checks appearing in
            // deferred#then to conditionally suppress rejection.
        } catch ( value ) {

            // support: android 4.0 only
            // strict mode functions invoked without .call/.apply get global-object context
            reject.apply( undefined, [ value ] );
        }
    }

    jquery.extend( {

        deferred: function( func ) {
            var tuples = [

                    // action, add listener, callbacks,
                    // ... .then handlers, argument index, [final state]
                    [ "notify", "progress", jquery.callbacks( "memory" ),
                        jquery.callbacks( "memory" ), 2 ],
                    [ "resolve", "done", jquery.callbacks( "once memory" ),
                        jquery.callbacks( "once memory" ), 0, "resolved" ],
                    [ "reject", "fail", jquery.callbacks( "once memory" ),
                        jquery.callbacks( "once memory" ), 1, "rejected" ]
                ],
                state = "pending",
                promise = {
                    state: function() {
                        return state;
                    },
                    always: function() {
                        deferred.done( arguments ).fail( arguments );
                        return this;
                    },
                    "catch": function( fn ) {
                        return promise.then( null, fn );
                    },

                    // keep pipe for back-compat
                    pipe: function( /* fndone, fnfail, fnprogress */ ) {
                        var fns = arguments;

                        return jquery.deferred( function( newdefer ) {
                            jquery.each( tuples, function( _i, tuple ) {

                                // map tuples (progress, done, fail) to arguments (done, fail, progress)
                                var fn = isfunction( fns[ tuple[ 4 ] ] ) && fns[ tuple[ 4 ] ];

                                // deferred.progress(function() { bind to newdefer or newdefer.notify })
                                // deferred.done(function() { bind to newdefer or newdefer.resolve })
                                // deferred.fail(function() { bind to newdefer or newdefer.reject })
                                deferred[ tuple[ 1 ] ]( function() {
                                    var returned = fn && fn.apply( this, arguments );
                                    if ( returned && isfunction( returned.promise ) ) {
                                        returned.promise()
                                            .progress( newdefer.notify )
                                            .done( newdefer.resolve )
                                            .fail( newdefer.reject );
                                    } else {
                                        newdefer[ tuple[ 0 ] + "with" ](
                                            this,
                                            fn ? [ returned ] : arguments
                                        );
                                    }
                                } );
                            } );
                            fns = null;
                        } ).promise();
                    },
                    then: function( onfulfilled, onrejected, onprogress ) {
                        var maxdepth = 0;
                        function resolve( depth, deferred, handler, special ) {
                            return function() {
                                var that = this,
                                    args = arguments,
                                    mightthrow = function() {
                                        var returned, then;

                                        // support: promises/a+ section 2.3.3.3.3
                                        // https://promisesaplus.com/#point-59
                                        // ignore double-resolution attempts
                                        if ( depth < maxdepth ) {
                                            return;
                                        }

                                        returned = handler.apply( that, args );

                                        // support: promises/a+ section 2.3.1
                                        // https://promisesaplus.com/#point-48
                                        if ( returned === deferred.promise() ) {
                                            throw new typeerror( "thenable self-resolution" );
                                        }

                                        // support: promises/a+ sections 2.3.3.1, 3.5
                                        // https://promisesaplus.com/#point-54
                                        // https://promisesaplus.com/#point-75
                                        // retrieve `then` only once
                                        then = returned &&

                                            // support: promises/a+ section 2.3.4
                                            // https://promisesaplus.com/#point-64
                                            // only check objects and functions for thenability
                                            ( typeof returned === "object" ||
                                                typeof returned === "function" ) &&
                                            returned.then;

                                        // handle a returned thenable
                                        if ( isfunction( then ) ) {

                                            // special processors (notify) just wait for resolution
                                            if ( special ) {
                                                then.call(
                                                    returned,
                                                    resolve( maxdepth, deferred, identity, special ),
                                                    resolve( maxdepth, deferred, thrower, special )
                                                );

                                                // normal processors (resolve) also hook into progress
                                            } else {

                                                // ...and disregard older resolution values
                                                maxdepth++;

                                                then.call(
                                                    returned,
                                                    resolve( maxdepth, deferred, identity, special ),
                                                    resolve( maxdepth, deferred, thrower, special ),
                                                    resolve( maxdepth, deferred, identity,
                                                        deferred.notifywith )
                                                );
                                            }

                                            // handle all other returned values
                                        } else {

                                            // only substitute handlers pass on context
                                            // and multiple values (non-spec behavior)
                                            if ( handler !== identity ) {
                                                that = undefined;
                                                args = [ returned ];
                                            }

                                            // process the value(s)
                                            // default process is resolve
                                            ( special || deferred.resolvewith )( that, args );
                                        }
                                    },

                                    // only normal processors (resolve) catch and reject exceptions
                                    process = special ?
                                        mightthrow :
                                        function() {
                                            try {
                                                mightthrow();
                                            } catch ( e ) {

                                                if ( jquery.deferred.exceptionhook ) {
                                                    jquery.deferred.exceptionhook( e,
                                                        process.stacktrace );
                                                }

                                                // support: promises/a+ section 2.3.3.3.4.1
                                                // https://promisesaplus.com/#point-61
                                                // ignore post-resolution exceptions
                                                if ( depth + 1 >= maxdepth ) {

                                                    // only substitute handlers pass on context
                                                    // and multiple values (non-spec behavior)
                                                    if ( handler !== thrower ) {
                                                        that = undefined;
                                                        args = [ e ];
                                                    }

                                                    deferred.rejectwith( that, args );
                                                }
                                            }
                                        };

                                // support: promises/a+ section 2.3.3.3.1
                                // https://promisesaplus.com/#point-57
                                // re-resolve promises immediately to dodge false rejection from
                                // subsequent errors
                                if ( depth ) {
                                    process();
                                } else {

                                    // call an optional hook to record the stack, in case of exception
                                    // since it's otherwise lost when execution goes async
                                    if ( jquery.deferred.getstackhook ) {
                                        process.stacktrace = jquery.deferred.getstackhook();
                                    }
                                    window.settimeout( process );
                                }
                            };
                        }

                        return jquery.deferred( function( newdefer ) {

                            // progress_handlers.add( ... )
                            tuples[ 0 ][ 3 ].add(
                                resolve(
                                    0,
                                    newdefer,
                                    isfunction( onprogress ) ?
                                        onprogress :
                                        identity,
                                    newdefer.notifywith
                                )
                            );

                            // fulfilled_handlers.add( ... )
                            tuples[ 1 ][ 3 ].add(
                                resolve(
                                    0,
                                    newdefer,
                                    isfunction( onfulfilled ) ?
                                        onfulfilled :
                                        identity
                                )
                            );

                            // rejected_handlers.add( ... )
                            tuples[ 2 ][ 3 ].add(
                                resolve(
                                    0,
                                    newdefer,
                                    isfunction( onrejected ) ?
                                        onrejected :
                                        thrower
                                )
                            );
                        } ).promise();
                    },

                    // get a promise for this deferred
                    // if obj is provided, the promise aspect is added to the object
                    promise: function( obj ) {
                        return obj != null ? jquery.extend( obj, promise ) : promise;
                    }
                },
                deferred = {};

            // add list-specific methods
            jquery.each( tuples, function( i, tuple ) {
                var list = tuple[ 2 ],
                    statestring = tuple[ 5 ];

                // promise.progress = list.add
                // promise.done = list.add
                // promise.fail = list.add
                promise[ tuple[ 1 ] ] = list.add;

                // handle state
                if ( statestring ) {
                    list.add(
                        function() {

                            // state = "resolved" (i.e., fulfilled)
                            // state = "rejected"
                            state = statestring;
                        },

                        // rejected_callbacks.disable
                        // fulfilled_callbacks.disable
                        tuples[ 3 - i ][ 2 ].disable,

                        // rejected_handlers.disable
                        // fulfilled_handlers.disable
                        tuples[ 3 - i ][ 3 ].disable,

                        // progress_callbacks.lock
                        tuples[ 0 ][ 2 ].lock,

                        // progress_handlers.lock
                        tuples[ 0 ][ 3 ].lock
                    );
                }

                // progress_handlers.fire
                // fulfilled_handlers.fire
                // rejected_handlers.fire
                list.add( tuple[ 3 ].fire );

                // deferred.notify = function() { deferred.notifywith(...) }
                // deferred.resolve = function() { deferred.resolvewith(...) }
                // deferred.reject = function() { deferred.rejectwith(...) }
                deferred[ tuple[ 0 ] ] = function() {
                    deferred[ tuple[ 0 ] + "with" ]( this === deferred ? undefined : this, arguments );
                    return this;
                };

                // deferred.notifywith = list.firewith
                // deferred.resolvewith = list.firewith
                // deferred.rejectwith = list.firewith
                deferred[ tuple[ 0 ] + "with" ] = list.firewith;
            } );

            // make the deferred a promise
            promise.promise( deferred );

            // call given func if any
            if ( func ) {
                func.call( deferred, deferred );
            }

            // all done!
            return deferred;
        },

        // deferred helper
        when: function( singlevalue ) {
            var

                // count of uncompleted subordinates
                remaining = arguments.length,

                // count of unprocessed arguments
                i = remaining,

                // subordinate fulfillment data
                resolvecontexts = array( i ),
                resolvevalues = slice.call( arguments ),

                // the master deferred
                master = jquery.deferred(),

                // subordinate callback factory
                updatefunc = function( i ) {
                    return function( value ) {
                        resolvecontexts[ i ] = this;
                        resolvevalues[ i ] = arguments.length > 1 ? slice.call( arguments ) : value;
                        if ( !( --remaining ) ) {
                            master.resolvewith( resolvecontexts, resolvevalues );
                        }
                    };
                };

            // single- and empty arguments are adopted like promise.resolve
            if ( remaining <= 1 ) {
                adoptvalue( singlevalue, master.done( updatefunc( i ) ).resolve, master.reject,
                    !remaining );

                // use .then() to unwrap secondary thenables (cf. gh-3000)
                if ( master.state() === "pending" ||
                    isfunction( resolvevalues[ i ] && resolvevalues[ i ].then ) ) {

                    return master.then();
                }
            }

            // multiple arguments are aggregated like promise.all array elements
            while ( i-- ) {
                adoptvalue( resolvevalues[ i ], updatefunc( i ), master.reject );
            }

            return master.promise();
        }
    } );


// these usually indicate a programmer mistake during development,
// warn about them asap rather than swallowing them by default.
    var rerrornames = /^(eval|internal|range|reference|syntax|type|uri)error$/;

    jquery.deferred.exceptionhook = function( error, stack ) {

        // support: ie 8 - 9 only
        // console exists when dev tools are open, which can happen at any time
        if ( window.console && window.console.warn && error && rerrornames.test( error.name ) ) {
            window.console.warn( "jquery.deferred exception: " + error.message, error.stack, stack );
        }
    };




    jquery.readyexception = function( error ) {
        window.settimeout( function() {
            throw error;
        } );
    };




// the deferred used on dom ready
    var readylist = jquery.deferred();

    jquery.fn.ready = function( fn ) {

        readylist
            .then( fn )

            // wrap jquery.readyexception in a function so that the lookup
            // happens at the time of error handling instead of callback
            // registration.
            .catch( function( error ) {
                jquery.readyexception( error );
            } );

        return this;
    };

    jquery.extend( {

        // is the dom ready to be used? set to true once it occurs.
        isready: false,

        // a counter to track how many items to wait for before
        // the ready event fires. see #6781
        readywait: 1,

        // handle when the dom is ready
        ready: function( wait ) {

            // abort if there are pending holds or we're already ready
            if ( wait === true ? --jquery.readywait : jquery.isready ) {
                return;
            }

            // remember that the dom is ready
            jquery.isready = true;

            // if a normal dom ready event fired, decrement, and wait if need be
            if ( wait !== true && --jquery.readywait > 0 ) {
                return;
            }

            // if there are functions bound, to execute
            readylist.resolvewith( document, [ jquery ] );
        }
    } );

    jquery.ready.then = readylist.then;

// the ready event handler and self cleanup method
    function completed() {
        document.removeeventlistener( "domcontentloaded", completed );
        window.removeeventlistener( "load", completed );
        jquery.ready();
    }

// catch cases where $(document).ready() is called
// after the browser event has already occurred.
// support: ie <=9 - 10 only
// older ie sometimes signals "interactive" too soon
    if ( document.readystate === "complete" ||
        ( document.readystate !== "loading" && !document.documentelement.doscroll ) ) {

        // handle it asynchronously to allow scripts the opportunity to delay ready
        window.settimeout( jquery.ready );

    } else {

        // use the handy event callback
        document.addeventlistener( "domcontentloaded", completed );

        // a fallback to window.onload, that will always work
        window.addeventlistener( "load", completed );
    }




// multifunctional method to get and set values of a collection
// the value/s can optionally be executed if it's a function
    var access = function( elems, fn, key, value, chainable, emptyget, raw ) {
        var i = 0,
            len = elems.length,
            bulk = key == null;

        // sets many values
        if ( totype( key ) === "object" ) {
            chainable = true;
            for ( i in key ) {
                access( elems, fn, i, key[ i ], true, emptyget, raw );
            }

            // sets one value
        } else if ( value !== undefined ) {
            chainable = true;

            if ( !isfunction( value ) ) {
                raw = true;
            }

            if ( bulk ) {

                // bulk operations run against the entire set
                if ( raw ) {
                    fn.call( elems, value );
                    fn = null;

                    // ...except when executing function values
                } else {
                    bulk = fn;
                    fn = function( elem, _key, value ) {
                        return bulk.call( jquery( elem ), value );
                    };
                }
            }

            if ( fn ) {
                for ( ; i < len; i++ ) {
                    fn(
                        elems[ i ], key, raw ?
                            value :
                            value.call( elems[ i ], i, fn( elems[ i ], key ) )
                    );
                }
            }
        }

        if ( chainable ) {
            return elems;
        }

        // gets
        if ( bulk ) {
            return fn.call( elems );
        }

        return len ? fn( elems[ 0 ], key ) : emptyget;
    };


// matches dashed string for camelizing
    var rmsprefix = /^-ms-/,
        rdashalpha = /-([a-z])/g;

// used by camelcase as callback to replace()
    function fcamelcase( _all, letter ) {
        return letter.touppercase();
    }

// convert dashed to camelcase; used by the css and data modules
// support: ie <=9 - 11, edge 12 - 15
// microsoft forgot to hump their vendor prefix (#9572)
    function camelcase( string ) {
        return string.replace( rmsprefix, "ms-" ).replace( rdashalpha, fcamelcase );
    }
    var acceptdata = function( owner ) {

        // accepts only:
        //  - node
        //    - node.element_node
        //    - node.document_node
        //  - object
        //    - any
        return owner.nodetype === 1 || owner.nodetype === 9 || !( +owner.nodetype );
    };




    function data() {
        this.expando = jquery.expando + data.uid++;
    }

    data.uid = 1;

    data.prototype = {

        cache: function( owner ) {

            // check if the owner object already has a cache
            var value = owner[ this.expando ];

            // if not, create one
            if ( !value ) {
                value = {};

                // we can accept data for non-element nodes in modern browsers,
                // but we should not, see #8335.
                // always return an empty object.
                if ( acceptdata( owner ) ) {

                    // if it is a node unlikely to be stringify-ed or looped over
                    // use plain assignment
                    if ( owner.nodetype ) {
                        owner[ this.expando ] = value;

                        // otherwise secure it in a non-enumerable property
                        // configurable must be true to allow the property to be
                        // deleted when data is removed
                    } else {
                        object.defineproperty( owner, this.expando, {
                            value: value,
                            configurable: true
                        } );
                    }
                }
            }

            return value;
        },
        set: function( owner, data, value ) {
            var prop,
                cache = this.cache( owner );

            // handle: [ owner, key, value ] args
            // always use camelcase key (gh-2257)
            if ( typeof data === "string" ) {
                cache[ camelcase( data ) ] = value;

                // handle: [ owner, { properties } ] args
            } else {

                // copy the properties one-by-one to the cache object
                for ( prop in data ) {
                    cache[ camelcase( prop ) ] = data[ prop ];
                }
            }
            return cache;
        },
        get: function( owner, key ) {
            return key === undefined ?
                this.cache( owner ) :

                // always use camelcase key (gh-2257)
                owner[ this.expando ] && owner[ this.expando ][ camelcase( key ) ];
        },
        access: function( owner, key, value ) {

            // in cases where either:
            //
            //   1. no key was specified
            //   2. a string key was specified, but no value provided
            //
            // take the "read" path and allow the get method to determine
            // which value to return, respectively either:
            //
            //   1. the entire cache object
            //   2. the data stored at the key
            //
            if ( key === undefined ||
                ( ( key && typeof key === "string" ) && value === undefined ) ) {

                return this.get( owner, key );
            }

            // when the key is not a string, or both a key and value
            // are specified, set or extend (existing objects) with either:
            //
            //   1. an object of properties
            //   2. a key and value
            //
            this.set( owner, key, value );

            // since the "set" path can have two possible entry points
            // return the expected data based on which path was taken[*]
            return value !== undefined ? value : key;
        },
        remove: function( owner, key ) {
            var i,
                cache = owner[ this.expando ];

            if ( cache === undefined ) {
                return;
            }

            if ( key !== undefined ) {

                // support array or space separated string of keys
                if ( array.isarray( key ) ) {

                    // if key is an array of keys...
                    // we always set camelcase keys, so remove that.
                    key = key.map( camelcase );
                } else {
                    key = camelcase( key );

                    // if a key with the spaces exists, use it.
                    // otherwise, create an array by matching non-whitespace
                    key = key in cache ?
                        [ key ] :
                        ( key.match( rnothtmlwhite ) || [] );
                }

                i = key.length;

                while ( i-- ) {
                    delete cache[ key[ i ] ];
                }
            }

            // remove the expando if there's no more data
            if ( key === undefined || jquery.isemptyobject( cache ) ) {

                // support: chrome <=35 - 45
                // webkit & blink performance suffers when deleting properties
                // from dom nodes, so set to undefined instead
                // https://bugs.chromium.org/p/chromium/issues/detail?id=378607 (bug restricted)
                if ( owner.nodetype ) {
                    owner[ this.expando ] = undefined;
                } else {
                    delete owner[ this.expando ];
                }
            }
        },
        hasdata: function( owner ) {
            var cache = owner[ this.expando ];
            return cache !== undefined && !jquery.isemptyobject( cache );
        }
    };
    var datapriv = new data();

    var datauser = new data();



//	implementation summary
//
//	1. enforce api surface and semantic compatibility with 1.9.x branch
//	2. improve the module's maintainability by reducing the storage
//		paths to a single mechanism.
//	3. use the same single mechanism to support "private" and "user" data.
//	4. _never_ expose "private" data to user code (todo: drop _data, _removedata)
//	5. avoid exposing implementation details on user objects (eg. expando properties)
//	6. provide a clear path for implementation upgrade to weakmap in 2014

    var rbrace = /^(?:\{[\w\w]*\}|\[[\w\w]*\])$/,
        rmultidash = /[a-z]/g;

    function getdata( data ) {
        if ( data === "true" ) {
            return true;
        }

        if ( data === "false" ) {
            return false;
        }

        if ( data === "null" ) {
            return null;
        }

        // only convert to a number if it doesn't change the string
        if ( data === +data + "" ) {
            return +data;
        }

        if ( rbrace.test( data ) ) {
            return json.parse( data );
        }

        return data;
    }

    function dataattr( elem, key, data ) {
        var name;

        // if nothing was found internally, try to fetch any
        // data from the html5 data-* attribute
        if ( data === undefined && elem.nodetype === 1 ) {
            name = "data-" + key.replace( rmultidash, "-$&" ).tolowercase();
            data = elem.getattribute( name );

            if ( typeof data === "string" ) {
                try {
                    data = getdata( data );
                } catch ( e ) {}

                // make sure we set the data so it isn't changed later
                datauser.set( elem, key, data );
            } else {
                data = undefined;
            }
        }
        return data;
    }

    jquery.extend( {
        hasdata: function( elem ) {
            return datauser.hasdata( elem ) || datapriv.hasdata( elem );
        },

        data: function( elem, name, data ) {
            return datauser.access( elem, name, data );
        },

        removedata: function( elem, name ) {
            datauser.remove( elem, name );
        },

        // todo: now that all calls to _data and _removedata have been replaced
        // with direct calls to datapriv methods, these can be deprecated.
        _data: function( elem, name, data ) {
            return datapriv.access( elem, name, data );
        },

        _removedata: function( elem, name ) {
            datapriv.remove( elem, name );
        }
    } );

    jquery.fn.extend( {
        data: function( key, value ) {
            var i, name, data,
                elem = this[ 0 ],
                attrs = elem && elem.attributes;

            // gets all values
            if ( key === undefined ) {
                if ( this.length ) {
                    data = datauser.get( elem );

                    if ( elem.nodetype === 1 && !datapriv.get( elem, "hasdataattrs" ) ) {
                        i = attrs.length;
                        while ( i-- ) {

                            // support: ie 11 only
                            // the attrs elements can be null (#14894)
                            if ( attrs[ i ] ) {
                                name = attrs[ i ].name;
                                if ( name.indexof( "data-" ) === 0 ) {
                                    name = camelcase( name.slice( 5 ) );
                                    dataattr( elem, name, data[ name ] );
                                }
                            }
                        }
                        datapriv.set( elem, "hasdataattrs", true );
                    }
                }

                return data;
            }

            // sets multiple values
            if ( typeof key === "object" ) {
                return this.each( function() {
                    datauser.set( this, key );
                } );
            }

            return access( this, function( value ) {
                var data;

                // the calling jquery object (element matches) is not empty
                // (and therefore has an element appears at this[ 0 ]) and the
                // `value` parameter was not undefined. an empty jquery object
                // will result in `undefined` for elem = this[ 0 ] which will
                // throw an exception if an attempt to read a data cache is made.
                if ( elem && value === undefined ) {

                    // attempt to get data from the cache
                    // the key will always be camelcased in data
                    data = datauser.get( elem, key );
                    if ( data !== undefined ) {
                        return data;
                    }

                    // attempt to "discover" the data in
                    // html5 custom data-* attrs
                    data = dataattr( elem, key );
                    if ( data !== undefined ) {
                        return data;
                    }

                    // we tried really hard, but the data doesn't exist.
                    return;
                }

                // set the data...
                this.each( function() {

                    // we always store the camelcased key
                    datauser.set( this, key, value );
                } );
            }, null, value, arguments.length > 1, null, true );
        },

        removedata: function( key ) {
            return this.each( function() {
                datauser.remove( this, key );
            } );
        }
    } );


    jquery.extend( {
        queue: function( elem, type, data ) {
            var queue;

            if ( elem ) {
                type = ( type || "fx" ) + "queue";
                queue = datapriv.get( elem, type );

                // speed up dequeue by getting out quickly if this is just a lookup
                if ( data ) {
                    if ( !queue || array.isarray( data ) ) {
                        queue = datapriv.access( elem, type, jquery.makearray( data ) );
                    } else {
                        queue.push( data );
                    }
                }
                return queue || [];
            }
        },

        dequeue: function( elem, type ) {
            type = type || "fx";

            var queue = jquery.queue( elem, type ),
                startlength = queue.length,
                fn = queue.shift(),
                hooks = jquery._queuehooks( elem, type ),
                next = function() {
                    jquery.dequeue( elem, type );
                };

            // if the fx queue is dequeued, always remove the progress sentinel
            if ( fn === "inprogress" ) {
                fn = queue.shift();
                startlength--;
            }

            if ( fn ) {

                // add a progress sentinel to prevent the fx queue from being
                // automatically dequeued
                if ( type === "fx" ) {
                    queue.unshift( "inprogress" );
                }

                // clear up the last queue stop function
                delete hooks.stop;
                fn.call( elem, next, hooks );
            }

            if ( !startlength && hooks ) {
                hooks.empty.fire();
            }
        },

        // not public - generate a queuehooks object, or return the current one
        _queuehooks: function( elem, type ) {
            var key = type + "queuehooks";
            return datapriv.get( elem, key ) || datapriv.access( elem, key, {
                empty: jquery.callbacks( "once memory" ).add( function() {
                    datapriv.remove( elem, [ type + "queue", key ] );
                } )
            } );
        }
    } );

    jquery.fn.extend( {
        queue: function( type, data ) {
            var setter = 2;

            if ( typeof type !== "string" ) {
                data = type;
                type = "fx";
                setter--;
            }

            if ( arguments.length < setter ) {
                return jquery.queue( this[ 0 ], type );
            }

            return data === undefined ?
                this :
                this.each( function() {
                    var queue = jquery.queue( this, type, data );

                    // ensure a hooks for this queue
                    jquery._queuehooks( this, type );

                    if ( type === "fx" && queue[ 0 ] !== "inprogress" ) {
                        jquery.dequeue( this, type );
                    }
                } );
        },
        dequeue: function( type ) {
            return this.each( function() {
                jquery.dequeue( this, type );
            } );
        },
        clearqueue: function( type ) {
            return this.queue( type || "fx", [] );
        },

        // get a promise resolved when queues of a certain type
        // are emptied (fx is the type by default)
        promise: function( type, obj ) {
            var tmp,
                count = 1,
                defer = jquery.deferred(),
                elements = this,
                i = this.length,
                resolve = function() {
                    if ( !( --count ) ) {
                        defer.resolvewith( elements, [ elements ] );
                    }
                };

            if ( typeof type !== "string" ) {
                obj = type;
                type = undefined;
            }
            type = type || "fx";

            while ( i-- ) {
                tmp = datapriv.get( elements[ i ], type + "queuehooks" );
                if ( tmp && tmp.empty ) {
                    count++;
                    tmp.empty.add( resolve );
                }
            }
            resolve();
            return defer.promise( obj );
        }
    } );
    var pnum = ( /[+-]?(?:\d*\.|)\d+(?:[ee][+-]?\d+|)/ ).source;

    var rcssnum = new regexp( "^(?:([+-])=|)(" + pnum + ")([a-z%]*)$", "i" );


    var cssexpand = [ "top", "right", "bottom", "left" ];

    var documentelement = document.documentelement;



    var isattached = function( elem ) {
            return jquery.contains( elem.ownerdocument, elem );
        },
        composed = { composed: true };

    // support: ie 9 - 11+, edge 12 - 18+, ios 10.0 - 10.2 only
    // check attachment across shadow dom boundaries when possible (gh-3504)
    // support: ios 10.0-10.2 only
    // early ios 10 versions support `attachshadow` but not `getrootnode`,
    // leading to errors. we need to check for `getrootnode`.
    if ( documentelement.getrootnode ) {
        isattached = function( elem ) {
            return jquery.contains( elem.ownerdocument, elem ) ||
                elem.getrootnode( composed ) === elem.ownerdocument;
        };
    }
    var ishiddenwithintree = function( elem, el ) {

        // ishiddenwithintree might be called from jquery#filter function;
        // in that case, element will be second argument
        elem = el || elem;

        // inline style trumps all
        return elem.style.display === "none" ||
            elem.style.display === "" &&

            // otherwise, check computed style
            // support: firefox <=43 - 45
            // disconnected elements can have computed display: none, so first confirm that elem is
            // in the document.
            isattached( elem ) &&

            jquery.css( elem, "display" ) === "none";
    };



    function adjustcss( elem, prop, valueparts, tween ) {
        var adjusted, scale,
            maxiterations = 20,
            currentvalue = tween ?
                function() {
                    return tween.cur();
                } :
                function() {
                    return jquery.css( elem, prop, "" );
                },
            initial = currentvalue(),
            unit = valueparts && valueparts[ 3 ] || ( jquery.cssnumber[ prop ] ? "" : "px" ),

            // starting value computation is required for potential unit mismatches
            initialinunit = elem.nodetype &&
                ( jquery.cssnumber[ prop ] || unit !== "px" && +initial ) &&
                rcssnum.exec( jquery.css( elem, prop ) );

        if ( initialinunit && initialinunit[ 3 ] !== unit ) {

            // support: firefox <=54
            // halve the iteration target value to prevent interference from css upper bounds (gh-2144)
            initial = initial / 2;

            // trust units reported by jquery.css
            unit = unit || initialinunit[ 3 ];

            // iteratively approximate from a nonzero starting point
            initialinunit = +initial || 1;

            while ( maxiterations-- ) {

                // evaluate and update our best guess (doubling guesses that zero out).
                // finish if the scale equals or crosses 1 (making the old*new product non-positive).
                jquery.style( elem, prop, initialinunit + unit );
                if ( ( 1 - scale ) * ( 1 - ( scale = currentvalue() / initial || 0.5 ) ) <= 0 ) {
                    maxiterations = 0;
                }
                initialinunit = initialinunit / scale;

            }

            initialinunit = initialinunit * 2;
            jquery.style( elem, prop, initialinunit + unit );

            // make sure we update the tween properties later on
            valueparts = valueparts || [];
        }

        if ( valueparts ) {
            initialinunit = +initialinunit || +initial || 0;

            // apply relative offset (+=/-=) if specified
            adjusted = valueparts[ 1 ] ?
                initialinunit + ( valueparts[ 1 ] + 1 ) * valueparts[ 2 ] :
                +valueparts[ 2 ];
            if ( tween ) {
                tween.unit = unit;
                tween.start = initialinunit;
                tween.end = adjusted;
            }
        }
        return adjusted;
    }


    var defaultdisplaymap = {};

    function getdefaultdisplay( elem ) {
        var temp,
            doc = elem.ownerdocument,
            nodename = elem.nodename,
            display = defaultdisplaymap[ nodename ];

        if ( display ) {
            return display;
        }

        temp = doc.body.appendchild( doc.createelement( nodename ) );
        display = jquery.css( temp, "display" );

        temp.parentnode.removechild( temp );

        if ( display === "none" ) {
            display = "block";
        }
        defaultdisplaymap[ nodename ] = display;

        return display;
    }

    function showhide( elements, show ) {
        var display, elem,
            values = [],
            index = 0,
            length = elements.length;

        // determine new display value for elements that need to change
        for ( ; index < length; index++ ) {
            elem = elements[ index ];
            if ( !elem.style ) {
                continue;
            }

            display = elem.style.display;
            if ( show ) {

                // since we force visibility upon cascade-hidden elements, an immediate (and slow)
                // check is required in this first loop unless we have a nonempty display value (either
                // inline or about-to-be-restored)
                if ( display === "none" ) {
                    values[ index ] = datapriv.get( elem, "display" ) || null;
                    if ( !values[ index ] ) {
                        elem.style.display = "";
                    }
                }
                if ( elem.style.display === "" && ishiddenwithintree( elem ) ) {
                    values[ index ] = getdefaultdisplay( elem );
                }
            } else {
                if ( display !== "none" ) {
                    values[ index ] = "none";

                    // remember what we're overwriting
                    datapriv.set( elem, "display", display );
                }
            }
        }

        // set the display of the elements in a second loop to avoid constant reflow
        for ( index = 0; index < length; index++ ) {
            if ( values[ index ] != null ) {
                elements[ index ].style.display = values[ index ];
            }
        }

        return elements;
    }

    jquery.fn.extend( {
        show: function() {
            return showhide( this, true );
        },
        hide: function() {
            return showhide( this );
        },
        toggle: function( state ) {
            if ( typeof state === "boolean" ) {
                return state ? this.show() : this.hide();
            }

            return this.each( function() {
                if ( ishiddenwithintree( this ) ) {
                    jquery( this ).show();
                } else {
                    jquery( this ).hide();
                }
            } );
        }
    } );
    var rcheckabletype = ( /^(?:checkbox|radio)$/i );

    var rtagname = ( /<([a-z][^\/\0>\x20\t\r\n\f]*)/i );

    var rscripttype = ( /^$|^module$|\/(?:java|ecma)script/i );



    ( function() {
        var fragment = document.createdocumentfragment(),
            div = fragment.appendchild( document.createelement( "div" ) ),
            input = document.createelement( "input" );

        // support: android 4.0 - 4.3 only
        // check state lost if the name is set (#11217)
        // support: windows web apps (wwa)
        // `name` and `type` must use .setattribute for wwa (#14901)
        input.setattribute( "type", "radio" );
        input.setattribute( "checked", "checked" );
        input.setattribute( "name", "t" );

        div.appendchild( input );

        // support: android <=4.1 only
        // older webkit doesn't clone checked state correctly in fragments
        support.checkclone = div.clonenode( true ).clonenode( true ).lastchild.checked;

        // support: ie <=11 only
        // make sure textarea (and checkbox) defaultvalue is properly cloned
        div.innerhtml = "<textarea>x</textarea>";
        support.noclonechecked = !!div.clonenode( true ).lastchild.defaultvalue;

        // support: ie <=9 only
        // ie <=9 replaces <option> tags with their contents when inserted outside of
        // the select element.
        div.innerhtml = "<option></option>";
        support.option = !!div.lastchild;
    } )();


// we have to close these tags to support xhtml (#13200)
    var wrapmap = {

        // xhtml parsers do not magically insert elements in the
        // same way that tag soup parsers do. so we cannot shorten
        // this by omitting <tbody> or other required elements.
        thead: [ 1, "<table>", "</table>" ],
        col: [ 2, "<table><colgroup>", "</colgroup></table>" ],
        tr: [ 2, "<table><tbody>", "</tbody></table>" ],
        td: [ 3, "<table><tbody><tr>", "</tr></tbody></table>" ],

        _default: [ 0, "", "" ]
    };

    wrapmap.tbody = wrapmap.tfoot = wrapmap.colgroup = wrapmap.caption = wrapmap.thead;
    wrapmap.th = wrapmap.td;

// support: ie <=9 only
    if ( !support.option ) {
        wrapmap.optgroup = wrapmap.option = [ 1, "<select multiple='multiple'>", "</select>" ];
    }


    function getall( context, tag ) {

        // support: ie <=9 - 11 only
        // use typeof to avoid zero-argument method invocation on host objects (#15151)
        var ret;

        if ( typeof context.getelementsbytagname !== "undefined" ) {
            ret = context.getelementsbytagname( tag || "*" );

        } else if ( typeof context.queryselectorall !== "undefined" ) {
            ret = context.queryselectorall( tag || "*" );

        } else {
            ret = [];
        }

        if ( tag === undefined || tag && nodename( context, tag ) ) {
            return jquery.merge( [ context ], ret );
        }

        return ret;
    }


// mark scripts as having already been evaluated
    function setglobaleval( elems, refelements ) {
        var i = 0,
            l = elems.length;

        for ( ; i < l; i++ ) {
            datapriv.set(
                elems[ i ],
                "globaleval",
                !refelements || datapriv.get( refelements[ i ], "globaleval" )
            );
        }
    }


    var rhtml = /<|&#?\w+;/;

    function buildfragment( elems, context, scripts, selection, ignored ) {
        var elem, tmp, tag, wrap, attached, j,
            fragment = context.createdocumentfragment(),
            nodes = [],
            i = 0,
            l = elems.length;

        for ( ; i < l; i++ ) {
            elem = elems[ i ];

            if ( elem || elem === 0 ) {

                // add nodes directly
                if ( totype( elem ) === "object" ) {

                    // support: android <=4.0 only, phantomjs 1 only
                    // push.apply(_, arraylike) throws on ancient webkit
                    jquery.merge( nodes, elem.nodetype ? [ elem ] : elem );

                    // convert non-html into a text node
                } else if ( !rhtml.test( elem ) ) {
                    nodes.push( context.createtextnode( elem ) );

                    // convert html into dom nodes
                } else {
                    tmp = tmp || fragment.appendchild( context.createelement( "div" ) );

                    // deserialize a standard representation
                    tag = ( rtagname.exec( elem ) || [ "", "" ] )[ 1 ].tolowercase();
                    wrap = wrapmap[ tag ] || wrapmap._default;
                    tmp.innerhtml = wrap[ 1 ] + jquery.htmlprefilter( elem ) + wrap[ 2 ];

                    // descend through wrappers to the right content
                    j = wrap[ 0 ];
                    while ( j-- ) {
                        tmp = tmp.lastchild;
                    }

                    // support: android <=4.0 only, phantomjs 1 only
                    // push.apply(_, arraylike) throws on ancient webkit
                    jquery.merge( nodes, tmp.childnodes );

                    // remember the top-level container
                    tmp = fragment.firstchild;

                    // ensure the created nodes are orphaned (#12392)
                    tmp.textcontent = "";
                }
            }
        }

        // remove wrapper from fragment
        fragment.textcontent = "";

        i = 0;
        while ( ( elem = nodes[ i++ ] ) ) {

            // skip elements already in the context collection (trac-4087)
            if ( selection && jquery.inarray( elem, selection ) > -1 ) {
                if ( ignored ) {
                    ignored.push( elem );
                }
                continue;
            }

            attached = isattached( elem );

            // append to fragment
            tmp = getall( fragment.appendchild( elem ), "script" );

            // preserve script evaluation history
            if ( attached ) {
                setglobaleval( tmp );
            }

            // capture executables
            if ( scripts ) {
                j = 0;
                while ( ( elem = tmp[ j++ ] ) ) {
                    if ( rscripttype.test( elem.type || "" ) ) {
                        scripts.push( elem );
                    }
                }
            }
        }

        return fragment;
    }


    var
        rkeyevent = /^key/,
        rmouseevent = /^(?:mouse|pointer|contextmenu|drag|drop)|click/,
        rtypenamespace = /^([^.]*)(?:\.(.+)|)/;

    function returntrue() {
        return true;
    }

    function returnfalse() {
        return false;
    }

// support: ie <=9 - 11+
// focus() and blur() are asynchronous, except when they are no-op.
// so expect focus to be synchronous when the element is already active,
// and blur to be synchronous when the element is not already active.
// (focus and blur are always synchronous in other supported browsers,
// this just defines when we can count on it).
    function expectsync( elem, type ) {
        return ( elem === safeactiveelement() ) === ( type === "focus" );
    }

// support: ie <=9 only
// accessing document.activeelement can throw unexpectedly
// https://bugs.jquery.com/ticket/13393
    function safeactiveelement() {
        try {
            return document.activeelement;
        } catch ( err ) { }
    }

    function on( elem, types, selector, data, fn, one ) {
        var origfn, type;

        // types can be a map of types/handlers
        if ( typeof types === "object" ) {

            // ( types-object, selector, data )
            if ( typeof selector !== "string" ) {

                // ( types-object, data )
                data = data || selector;
                selector = undefined;
            }
            for ( type in types ) {
                on( elem, type, selector, data, types[ type ], one );
            }
            return elem;
        }

        if ( data == null && fn == null ) {

            // ( types, fn )
            fn = selector;
            data = selector = undefined;
        } else if ( fn == null ) {
            if ( typeof selector === "string" ) {

                // ( types, selector, fn )
                fn = data;
                data = undefined;
            } else {

                // ( types, data, fn )
                fn = data;
                data = selector;
                selector = undefined;
            }
        }
        if ( fn === false ) {
            fn = returnfalse;
        } else if ( !fn ) {
            return elem;
        }

        if ( one === 1 ) {
            origfn = fn;
            fn = function( event ) {

                // can use an empty set, since event contains the info
                jquery().off( event );
                return origfn.apply( this, arguments );
            };

            // use same guid so caller can remove using origfn
            fn.guid = origfn.guid || ( origfn.guid = jquery.guid++ );
        }
        return elem.each( function() {
            jquery.event.add( this, types, fn, data, selector );
        } );
    }

    /*
 * helper functions for managing events -- not part of the public interface.
 * props to dean edwards' addevent library for many of the ideas.
 */
    jquery.event = {

        global: {},

        add: function( elem, types, handler, data, selector ) {

            var handleobjin, eventhandle, tmp,
                events, t, handleobj,
                special, handlers, type, namespaces, origtype,
                elemdata = datapriv.get( elem );

            // only attach events to objects that accept data
            if ( !acceptdata( elem ) ) {
                return;
            }

            // caller can pass in an object of custom data in lieu of the handler
            if ( handler.handler ) {
                handleobjin = handler;
                handler = handleobjin.handler;
                selector = handleobjin.selector;
            }

            // ensure that invalid selectors throw exceptions at attach time
            // evaluate against documentelement in case elem is a non-element node (e.g., document)
            if ( selector ) {
                jquery.find.matchesselector( documentelement, selector );
            }

            // make sure that the handler has a unique id, used to find/remove it later
            if ( !handler.guid ) {
                handler.guid = jquery.guid++;
            }

            // init the element's event structure and main handler, if this is the first
            if ( !( events = elemdata.events ) ) {
                events = elemdata.events = object.create( null );
            }
            if ( !( eventhandle = elemdata.handle ) ) {
                eventhandle = elemdata.handle = function( e ) {

                    // discard the second event of a jquery.event.trigger() and
                    // when an event is called after a page has unloaded
                    return typeof jquery !== "undefined" && jquery.event.triggered !== e.type ?
                        jquery.event.dispatch.apply( elem, arguments ) : undefined;
                };
            }

            // handle multiple events separated by a space
            types = ( types || "" ).match( rnothtmlwhite ) || [ "" ];
            t = types.length;
            while ( t-- ) {
                tmp = rtypenamespace.exec( types[ t ] ) || [];
                type = origtype = tmp[ 1 ];
                namespaces = ( tmp[ 2 ] || "" ).split( "." ).sort();

                // there *must* be a type, no attaching namespace-only handlers
                if ( !type ) {
                    continue;
                }

                // if event changes its type, use the special event handlers for the changed type
                special = jquery.event.special[ type ] || {};

                // if selector defined, determine special event api type, otherwise given type
                type = ( selector ? special.delegatetype : special.bindtype ) || type;

                // update special based on newly reset type
                special = jquery.event.special[ type ] || {};

                // handleobj is passed to all event handlers
                handleobj = jquery.extend( {
                    type: type,
                    origtype: origtype,
                    data: data,
                    handler: handler,
                    guid: handler.guid,
                    selector: selector,
                    needscontext: selector && jquery.expr.match.needscontext.test( selector ),
                    namespace: namespaces.join( "." )
                }, handleobjin );

                // init the event handler queue if we're the first
                if ( !( handlers = events[ type ] ) ) {
                    handlers = events[ type ] = [];
                    handlers.delegatecount = 0;

                    // only use addeventlistener if the special events handler returns false
                    if ( !special.setup ||
                        special.setup.call( elem, data, namespaces, eventhandle ) === false ) {

                        if ( elem.addeventlistener ) {
                            elem.addeventlistener( type, eventhandle );
                        }
                    }
                }

                if ( special.add ) {
                    special.add.call( elem, handleobj );

                    if ( !handleobj.handler.guid ) {
                        handleobj.handler.guid = handler.guid;
                    }
                }

                // add to the element's handler list, delegates in front
                if ( selector ) {
                    handlers.splice( handlers.delegatecount++, 0, handleobj );
                } else {
                    handlers.push( handleobj );
                }

                // keep track of which events have ever been used, for event optimization
                jquery.event.global[ type ] = true;
            }

        },

        // detach an event or set of events from an element
        remove: function( elem, types, handler, selector, mappedtypes ) {

            var j, origcount, tmp,
                events, t, handleobj,
                special, handlers, type, namespaces, origtype,
                elemdata = datapriv.hasdata( elem ) && datapriv.get( elem );

            if ( !elemdata || !( events = elemdata.events ) ) {
                return;
            }

            // once for each type.namespace in types; type may be omitted
            types = ( types || "" ).match( rnothtmlwhite ) || [ "" ];
            t = types.length;
            while ( t-- ) {
                tmp = rtypenamespace.exec( types[ t ] ) || [];
                type = origtype = tmp[ 1 ];
                namespaces = ( tmp[ 2 ] || "" ).split( "." ).sort();

                // unbind all events (on this namespace, if provided) for the element
                if ( !type ) {
                    for ( type in events ) {
                        jquery.event.remove( elem, type + types[ t ], handler, selector, true );
                    }
                    continue;
                }

                special = jquery.event.special[ type ] || {};
                type = ( selector ? special.delegatetype : special.bindtype ) || type;
                handlers = events[ type ] || [];
                tmp = tmp[ 2 ] &&
                    new regexp( "(^|\\.)" + namespaces.join( "\\.(?:.*\\.|)" ) + "(\\.|$)" );

                // remove matching events
                origcount = j = handlers.length;
                while ( j-- ) {
                    handleobj = handlers[ j ];

                    if ( ( mappedtypes || origtype === handleobj.origtype ) &&
                        ( !handler || handler.guid === handleobj.guid ) &&
                        ( !tmp || tmp.test( handleobj.namespace ) ) &&
                        ( !selector || selector === handleobj.selector ||
                            selector === "**" && handleobj.selector ) ) {
                        handlers.splice( j, 1 );

                        if ( handleobj.selector ) {
                            handlers.delegatecount--;
                        }
                        if ( special.remove ) {
                            special.remove.call( elem, handleobj );
                        }
                    }
                }

                // remove generic event handler if we removed something and no more handlers exist
                // (avoids potential for endless recursion during removal of special event handlers)
                if ( origcount && !handlers.length ) {
                    if ( !special.teardown ||
                        special.teardown.call( elem, namespaces, elemdata.handle ) === false ) {

                        jquery.removeevent( elem, type, elemdata.handle );
                    }

                    delete events[ type ];
                }
            }

            // remove data and the expando if it's no longer used
            if ( jquery.isemptyobject( events ) ) {
                datapriv.remove( elem, "handle events" );
            }
        },

        dispatch: function( nativeevent ) {

            var i, j, ret, matched, handleobj, handlerqueue,
                args = new array( arguments.length ),

                // make a writable jquery.event from the native event object
                event = jquery.event.fix( nativeevent ),

                handlers = (
                    datapriv.get( this, "events" ) || object.create( null )
                )[ event.type ] || [],
                special = jquery.event.special[ event.type ] || {};

            // use the fix-ed jquery.event rather than the (read-only) native event
            args[ 0 ] = event;

            for ( i = 1; i < arguments.length; i++ ) {
                args[ i ] = arguments[ i ];
            }

            event.delegatetarget = this;

            // call the predispatch hook for the mapped type, and let it bail if desired
            if ( special.predispatch && special.predispatch.call( this, event ) === false ) {
                return;
            }

            // determine handlers
            handlerqueue = jquery.event.handlers.call( this, event, handlers );

            // run delegates first; they may want to stop propagation beneath us
            i = 0;
            while ( ( matched = handlerqueue[ i++ ] ) && !event.ispropagationstopped() ) {
                event.currenttarget = matched.elem;

                j = 0;
                while ( ( handleobj = matched.handlers[ j++ ] ) &&
                !event.isimmediatepropagationstopped() ) {

                    // if the event is namespaced, then each handler is only invoked if it is
                    // specially universal or its namespaces are a superset of the event's.
                    if ( !event.rnamespace || handleobj.namespace === false ||
                        event.rnamespace.test( handleobj.namespace ) ) {

                        event.handleobj = handleobj;
                        event.data = handleobj.data;

                        ret = ( ( jquery.event.special[ handleobj.origtype ] || {} ).handle ||
                            handleobj.handler ).apply( matched.elem, args );

                        if ( ret !== undefined ) {
                            if ( ( event.result = ret ) === false ) {
                                event.preventdefault();
                                event.stoppropagation();
                            }
                        }
                    }
                }
            }

            // call the postdispatch hook for the mapped type
            if ( special.postdispatch ) {
                special.postdispatch.call( this, event );
            }

            return event.result;
        },

        handlers: function( event, handlers ) {
            var i, handleobj, sel, matchedhandlers, matchedselectors,
                handlerqueue = [],
                delegatecount = handlers.delegatecount,
                cur = event.target;

            // find delegate handlers
            if ( delegatecount &&

                // support: ie <=9
                // black-hole svg <use> instance trees (trac-13180)
                cur.nodetype &&

                // support: firefox <=42
                // suppress spec-violating clicks indicating a non-primary pointer button (trac-3861)
                // https://www.w3.org/tr/dom-level-3-events/#event-type-click
                // support: ie 11 only
                // ...but not arrow key "clicks" of radio inputs, which can have `button` -1 (gh-2343)
                !( event.type === "click" && event.button >= 1 ) ) {

                for ( ; cur !== this; cur = cur.parentnode || this ) {

                    // don't check non-elements (#13208)
                    // don't process clicks on disabled elements (#6911, #8165, #11382, #11764)
                    if ( cur.nodetype === 1 && !( event.type === "click" && cur.disabled === true ) ) {
                        matchedhandlers = [];
                        matchedselectors = {};
                        for ( i = 0; i < delegatecount; i++ ) {
                            handleobj = handlers[ i ];

                            // don't conflict with object.prototype properties (#13203)
                            sel = handleobj.selector + " ";

                            if ( matchedselectors[ sel ] === undefined ) {
                                matchedselectors[ sel ] = handleobj.needscontext ?
                                    jquery( sel, this ).index( cur ) > -1 :
                                    jquery.find( sel, this, null, [ cur ] ).length;
                            }
                            if ( matchedselectors[ sel ] ) {
                                matchedhandlers.push( handleobj );
                            }
                        }
                        if ( matchedhandlers.length ) {
                            handlerqueue.push( { elem: cur, handlers: matchedhandlers } );
                        }
                    }
                }
            }

            // add the remaining (directly-bound) handlers
            cur = this;
            if ( delegatecount < handlers.length ) {
                handlerqueue.push( { elem: cur, handlers: handlers.slice( delegatecount ) } );
            }

            return handlerqueue;
        },

        addprop: function( name, hook ) {
            object.defineproperty( jquery.event.prototype, name, {
                enumerable: true,
                configurable: true,

                get: isfunction( hook ) ?
                    function() {
                        if ( this.originalevent ) {
                            return hook( this.originalevent );
                        }
                    } :
                    function() {
                        if ( this.originalevent ) {
                            return this.originalevent[ name ];
                        }
                    },

                set: function( value ) {
                    object.defineproperty( this, name, {
                        enumerable: true,
                        configurable: true,
                        writable: true,
                        value: value
                    } );
                }
            } );
        },

        fix: function( originalevent ) {
            return originalevent[ jquery.expando ] ?
                originalevent :
                new jquery.event( originalevent );
        },

        special: {
            load: {

                // prevent triggered image.load events from bubbling to window.load
                nobubble: true
            },
            click: {

                // utilize native event to ensure correct state for checkable inputs
                setup: function( data ) {

                    // for mutual compressibility with _default, replace `this` access with a local var.
                    // `|| data` is dead code meant only to preserve the variable through minification.
                    var el = this || data;

                    // claim the first handler
                    if ( rcheckabletype.test( el.type ) &&
                        el.click && nodename( el, "input" ) ) {

                        // datapriv.set( el, "click", ... )
                        leveragenative( el, "click", returntrue );
                    }

                    // return false to allow normal processing in the caller
                    return false;
                },
                trigger: function( data ) {

                    // for mutual compressibility with _default, replace `this` access with a local var.
                    // `|| data` is dead code meant only to preserve the variable through minification.
                    var el = this || data;

                    // force setup before triggering a click
                    if ( rcheckabletype.test( el.type ) &&
                        el.click && nodename( el, "input" ) ) {

                        leveragenative( el, "click" );
                    }

                    // return non-false to allow normal event-path propagation
                    return true;
                },

                // for cross-browser consistency, suppress native .click() on links
                // also prevent it if we're currently inside a leveraged native-event stack
                _default: function( event ) {
                    var target = event.target;
                    return rcheckabletype.test( target.type ) &&
                        target.click && nodename( target, "input" ) &&
                        datapriv.get( target, "click" ) ||
                        nodename( target, "a" );
                }
            },

            beforeunload: {
                postdispatch: function( event ) {

                    // support: firefox 20+
                    // firefox doesn't alert if the returnvalue field is not set.
                    if ( event.result !== undefined && event.originalevent ) {
                        event.originalevent.returnvalue = event.result;
                    }
                }
            }
        }
    };

// ensure the presence of an event listener that handles manually-triggered
// synthetic events by interrupting progress until reinvoked in response to
// *native* events that it fires directly, ensuring that state changes have
// already occurred before other listeners are invoked.
    function leveragenative( el, type, expectsync ) {

        // missing expectsync indicates a trigger call, which must force setup through jquery.event.add
        if ( !expectsync ) {
            if ( datapriv.get( el, type ) === undefined ) {
                jquery.event.add( el, type, returntrue );
            }
            return;
        }

        // register the controller as a special universal handler for all event namespaces
        datapriv.set( el, type, false );
        jquery.event.add( el, type, {
            namespace: false,
            handler: function( event ) {
                var notasync, result,
                    saved = datapriv.get( this, type );

                if ( ( event.istrigger & 1 ) && this[ type ] ) {

                    // interrupt processing of the outer synthetic .trigger()ed event
                    // saved data should be false in such cases, but might be a leftover capture object
                    // from an async native handler (gh-4350)
                    if ( !saved.length ) {

                        // store arguments for use when handling the inner native event
                        // there will always be at least one argument (an event object), so this array
                        // will not be confused with a leftover capture object.
                        saved = slice.call( arguments );
                        datapriv.set( this, type, saved );

                        // trigger the native event and capture its result
                        // support: ie <=9 - 11+
                        // focus() and blur() are asynchronous
                        notasync = expectsync( this, type );
                        this[ type ]();
                        result = datapriv.get( this, type );
                        if ( saved !== result || notasync ) {
                            datapriv.set( this, type, false );
                        } else {
                            result = {};
                        }
                        if ( saved !== result ) {

                            // cancel the outer synthetic event
                            event.stopimmediatepropagation();
                            event.preventdefault();
                            return result.value;
                        }

                        // if this is an inner synthetic event for an event with a bubbling surrogate
                        // (focus or blur), assume that the surrogate already propagated from triggering the
                        // native event and prevent that from happening again here.
                        // this technically gets the ordering wrong w.r.t. to `.trigger()` (in which the
                        // bubbling surrogate propagates *after* the non-bubbling base), but that seems
                        // less bad than duplication.
                    } else if ( ( jquery.event.special[ type ] || {} ).delegatetype ) {
                        event.stoppropagation();
                    }

                    // if this is a native event triggered above, everything is now in order
                    // fire an inner synthetic event with the original arguments
                } else if ( saved.length ) {

                    // ...and capture the result
                    datapriv.set( this, type, {
                        value: jquery.event.trigger(

                            // support: ie <=9 - 11+
                            // extend with the prototype to reset the above stopimmediatepropagation()
                            jquery.extend( saved[ 0 ], jquery.event.prototype ),
                            saved.slice( 1 ),
                            this
                        )
                    } );

                    // abort handling of the native event
                    event.stopimmediatepropagation();
                }
            }
        } );
    }

    jquery.removeevent = function( elem, type, handle ) {

        // this "if" is needed for plain objects
        if ( elem.removeeventlistener ) {
            elem.removeeventlistener( type, handle );
        }
    };

    jquery.event = function( src, props ) {

        // allow instantiation without the 'new' keyword
        if ( !( this instanceof jquery.event ) ) {
            return new jquery.event( src, props );
        }

        // event object
        if ( src && src.type ) {
            this.originalevent = src;
            this.type = src.type;

            // events bubbling up the document may have been marked as prevented
            // by a handler lower down the tree; reflect the correct value.
            this.isdefaultprevented = src.defaultprevented ||
            src.defaultprevented === undefined &&

            // support: android <=2.3 only
            src.returnvalue === false ?
                returntrue :
                returnfalse;

            // create target properties
            // support: safari <=6 - 7 only
            // target should not be a text node (#504, #13143)
            this.target = ( src.target && src.target.nodetype === 3 ) ?
                src.target.parentnode :
                src.target;

            this.currenttarget = src.currenttarget;
            this.relatedtarget = src.relatedtarget;

            // event type
        } else {
            this.type = src;
        }

        // put explicitly provided properties onto the event object
        if ( props ) {
            jquery.extend( this, props );
        }

        // create a timestamp if incoming event doesn't have one
        this.timestamp = src && src.timestamp || date.now();

        // mark it as fixed
        this[ jquery.expando ] = true;
    };

// jquery.event is based on dom3 events as specified by the ecmascript language binding
// https://www.w3.org/tr/2003/wd-dom-level-3-events-20030331/ecma-script-binding.html
    jquery.event.prototype = {
        constructor: jquery.event,
        isdefaultprevented: returnfalse,
        ispropagationstopped: returnfalse,
        isimmediatepropagationstopped: returnfalse,
        issimulated: false,

        preventdefault: function() {
            var e = this.originalevent;

            this.isdefaultprevented = returntrue;

            if ( e && !this.issimulated ) {
                e.preventdefault();
            }
        },
        stoppropagation: function() {
            var e = this.originalevent;

            this.ispropagationstopped = returntrue;

            if ( e && !this.issimulated ) {
                e.stoppropagation();
            }
        },
        stopimmediatepropagation: function() {
            var e = this.originalevent;

            this.isimmediatepropagationstopped = returntrue;

            if ( e && !this.issimulated ) {
                e.stopimmediatepropagation();
            }

            this.stoppropagation();
        }
    };

// includes all common event props including keyevent and mouseevent specific props
    jquery.each( {
        altkey: true,
        bubbles: true,
        cancelable: true,
        changedtouches: true,
        ctrlkey: true,
        detail: true,
        eventphase: true,
        metakey: true,
        pagex: true,
        pagey: true,
        shiftkey: true,
        view: true,
        "char": true,
        code: true,
        charcode: true,
        key: true,
        keycode: true,
        button: true,
        buttons: true,
        clientx: true,
        clienty: true,
        offsetx: true,
        offsety: true,
        pointerid: true,
        pointertype: true,
        screenx: true,
        screeny: true,
        targettouches: true,
        toelement: true,
        touches: true,

        which: function( event ) {
            var button = event.button;

            // add which for key events
            if ( event.which == null && rkeyevent.test( event.type ) ) {
                return event.charcode != null ? event.charcode : event.keycode;
            }

            // add which for click: 1 === left; 2 === middle; 3 === right
            if ( !event.which && button !== undefined && rmouseevent.test( event.type ) ) {
                if ( button & 1 ) {
                    return 1;
                }

                if ( button & 2 ) {
                    return 3;
                }

                if ( button & 4 ) {
                    return 2;
                }

                return 0;
            }

            return event.which;
        }
    }, jquery.event.addprop );

    jquery.each( { focus: "focusin", blur: "focusout" }, function( type, delegatetype ) {
        jquery.event.special[ type ] = {

            // utilize native event if possible so blur/focus sequence is correct
            setup: function() {

                // claim the first handler
                // datapriv.set( this, "focus", ... )
                // datapriv.set( this, "blur", ... )
                leveragenative( this, type, expectsync );

                // return false to allow normal processing in the caller
                return false;
            },
            trigger: function() {

                // force setup before trigger
                leveragenative( this, type );

                // return non-false to allow normal event-path propagation
                return true;
            },

            delegatetype: delegatetype
        };
    } );

// create mouseenter/leave events using mouseover/out and event-time checks
// so that event delegation works in jquery.
// do the same for pointerenter/pointerleave and pointerover/pointerout
//
// support: safari 7 only
// safari sends mouseenter too often; see:
// https://bugs.chromium.org/p/chromium/issues/detail?id=470258
// for the description of the bug (it existed in older chrome versions as well).
    jquery.each( {
        mouseenter: "mouseover",
        mouseleave: "mouseout",
        pointerenter: "pointerover",
        pointerleave: "pointerout"
    }, function( orig, fix ) {
        jquery.event.special[ orig ] = {
            delegatetype: fix,
            bindtype: fix,

            handle: function( event ) {
                var ret,
                    target = this,
                    related = event.relatedtarget,
                    handleobj = event.handleobj;

                // for mouseenter/leave call the handler if related is outside the target.
                // nb: no relatedtarget if the mouse left/entered the browser window
                if ( !related || ( related !== target && !jquery.contains( target, related ) ) ) {
                    event.type = handleobj.origtype;
                    ret = handleobj.handler.apply( this, arguments );
                    event.type = fix;
                }
                return ret;
            }
        };
    } );

    jquery.fn.extend( {

        on: function( types, selector, data, fn ) {
            return on( this, types, selector, data, fn );
        },
        one: function( types, selector, data, fn ) {
            return on( this, types, selector, data, fn, 1 );
        },
        off: function( types, selector, fn ) {
            var handleobj, type;
            if ( types && types.preventdefault && types.handleobj ) {

                // ( event )  dispatched jquery.event
                handleobj = types.handleobj;
                jquery( types.delegatetarget ).off(
                    handleobj.namespace ?
                        handleobj.origtype + "." + handleobj.namespace :
                        handleobj.origtype,
                    handleobj.selector,
                    handleobj.handler
                );
                return this;
            }
            if ( typeof types === "object" ) {

                // ( types-object [, selector] )
                for ( type in types ) {
                    this.off( type, selector, types[ type ] );
                }
                return this;
            }
            if ( selector === false || typeof selector === "function" ) {

                // ( types [, fn] )
                fn = selector;
                selector = undefined;
            }
            if ( fn === false ) {
                fn = returnfalse;
            }
            return this.each( function() {
                jquery.event.remove( this, types, fn, selector );
            } );
        }
    } );


    var

        // support: ie <=10 - 11, edge 12 - 13 only
        // in ie/edge using regex groups here causes severe slowdowns.
        // see https://connect.microsoft.com/ie/feedback/details/1736512/
        rnoinnerhtml = /<script|<style|<link/i,

        // checked="checked" or checked
        rchecked = /checked\s*(?:[^=]|=\s*.checked.)/i,
        rcleanscript = /^\s*<!(?:\[cdata\[|--)|(?:\]\]|--)>\s*$/g;

// prefer a tbody over its parent table for containing new rows
    function manipulationtarget( elem, content ) {
        if ( nodename( elem, "table" ) &&
            nodename( content.nodetype !== 11 ? content : content.firstchild, "tr" ) ) {

            return jquery( elem ).children( "tbody" )[ 0 ] || elem;
        }

        return elem;
    }

// replace/restore the type attribute of script elements for safe dom manipulation
    function disablescript( elem ) {
        elem.type = ( elem.getattribute( "type" ) !== null ) + "/" + elem.type;
        return elem;
    }
    function restorescript( elem ) {
        if ( ( elem.type || "" ).slice( 0, 5 ) === "true/" ) {
            elem.type = elem.type.slice( 5 );
        } else {
            elem.removeattribute( "type" );
        }

        return elem;
    }

    function clonecopyevent( src, dest ) {
        var i, l, type, pdataold, udataold, udatacur, events;

        if ( dest.nodetype !== 1 ) {
            return;
        }

        // 1. copy private data: events, handlers, etc.
        if ( datapriv.hasdata( src ) ) {
            pdataold = datapriv.get( src );
            events = pdataold.events;

            if ( events ) {
                datapriv.remove( dest, "handle events" );

                for ( type in events ) {
                    for ( i = 0, l = events[ type ].length; i < l; i++ ) {
                        jquery.event.add( dest, type, events[ type ][ i ] );
                    }
                }
            }
        }

        // 2. copy user data
        if ( datauser.hasdata( src ) ) {
            udataold = datauser.access( src );
            udatacur = jquery.extend( {}, udataold );

            datauser.set( dest, udatacur );
        }
    }

// fix ie bugs, see support tests
    function fixinput( src, dest ) {
        var nodename = dest.nodename.tolowercase();

        // fails to persist the checked state of a cloned checkbox or radio button.
        if ( nodename === "input" && rcheckabletype.test( src.type ) ) {
            dest.checked = src.checked;

            // fails to return the selected option to the default selected state when cloning options
        } else if ( nodename === "input" || nodename === "textarea" ) {
            dest.defaultvalue = src.defaultvalue;
        }
    }

    function dommanip( collection, args, callback, ignored ) {

        // flatten any nested arrays
        args = flat( args );

        var fragment, first, scripts, hasscripts, node, doc,
            i = 0,
            l = collection.length,
            inoclone = l - 1,
            value = args[ 0 ],
            valueisfunction = isfunction( value );

        // we can't clonenode fragments that contain checked, in webkit
        if ( valueisfunction ||
            ( l > 1 && typeof value === "string" &&
                !support.checkclone && rchecked.test( value ) ) ) {
            return collection.each( function( index ) {
                var self = collection.eq( index );
                if ( valueisfunction ) {
                    args[ 0 ] = value.call( this, index, self.html() );
                }
                dommanip( self, args, callback, ignored );
            } );
        }

        if ( l ) {
            fragment = buildfragment( args, collection[ 0 ].ownerdocument, false, collection, ignored );
            first = fragment.firstchild;

            if ( fragment.childnodes.length === 1 ) {
                fragment = first;
            }

            // require either new content or an interest in ignored elements to invoke the callback
            if ( first || ignored ) {
                scripts = jquery.map( getall( fragment, "script" ), disablescript );
                hasscripts = scripts.length;

                // use the original fragment for the last item
                // instead of the first because it can end up
                // being emptied incorrectly in certain situations (#8070).
                for ( ; i < l; i++ ) {
                    node = fragment;

                    if ( i !== inoclone ) {
                        node = jquery.clone( node, true, true );

                        // keep references to cloned scripts for later restoration
                        if ( hasscripts ) {

                            // support: android <=4.0 only, phantomjs 1 only
                            // push.apply(_, arraylike) throws on ancient webkit
                            jquery.merge( scripts, getall( node, "script" ) );
                        }
                    }

                    callback.call( collection[ i ], node, i );
                }

                if ( hasscripts ) {
                    doc = scripts[ scripts.length - 1 ].ownerdocument;

                    // reenable scripts
                    jquery.map( scripts, restorescript );

                    // evaluate executable scripts on first document insertion
                    for ( i = 0; i < hasscripts; i++ ) {
                        node = scripts[ i ];
                        if ( rscripttype.test( node.type || "" ) &&
                            !datapriv.access( node, "globaleval" ) &&
                            jquery.contains( doc, node ) ) {

                            if ( node.src && ( node.type || "" ).tolowercase()  !== "module" ) {

                                // optional ajax dependency, but won't run scripts if not present
                                if ( jquery._evalurl && !node.nomodule ) {
                                    jquery._evalurl( node.src, {
                                        nonce: node.nonce || node.getattribute( "nonce" )
                                    }, doc );
                                }
                            } else {
                                domeval( node.textcontent.replace( rcleanscript, "" ), node, doc );
                            }
                        }
                    }
                }
            }
        }

        return collection;
    }

    function remove( elem, selector, keepdata ) {
        var node,
            nodes = selector ? jquery.filter( selector, elem ) : elem,
            i = 0;

        for ( ; ( node = nodes[ i ] ) != null; i++ ) {
            if ( !keepdata && node.nodetype === 1 ) {
                jquery.cleandata( getall( node ) );
            }

            if ( node.parentnode ) {
                if ( keepdata && isattached( node ) ) {
                    setglobaleval( getall( node, "script" ) );
                }
                node.parentnode.removechild( node );
            }
        }

        return elem;
    }

    jquery.extend( {
        htmlprefilter: function( html ) {
            return html;
        },

        clone: function( elem, dataandevents, deepdataandevents ) {
            var i, l, srcelements, destelements,
                clone = elem.clonenode( true ),
                inpage = isattached( elem );

            // fix ie cloning issues
            if ( !support.noclonechecked && ( elem.nodetype === 1 || elem.nodetype === 11 ) &&
                !jquery.isxmldoc( elem ) ) {

                // we eschew sizzle here for performance reasons: https://jsperf.com/getall-vs-sizzle/2
                destelements = getall( clone );
                srcelements = getall( elem );

                for ( i = 0, l = srcelements.length; i < l; i++ ) {
                    fixinput( srcelements[ i ], destelements[ i ] );
                }
            }

            // copy the events from the original to the clone
            if ( dataandevents ) {
                if ( deepdataandevents ) {
                    srcelements = srcelements || getall( elem );
                    destelements = destelements || getall( clone );

                    for ( i = 0, l = srcelements.length; i < l; i++ ) {
                        clonecopyevent( srcelements[ i ], destelements[ i ] );
                    }
                } else {
                    clonecopyevent( elem, clone );
                }
            }

            // preserve script evaluation history
            destelements = getall( clone, "script" );
            if ( destelements.length > 0 ) {
                setglobaleval( destelements, !inpage && getall( elem, "script" ) );
            }

            // return the cloned set
            return clone;
        },

        cleandata: function( elems ) {
            var data, elem, type,
                special = jquery.event.special,
                i = 0;

            for ( ; ( elem = elems[ i ] ) !== undefined; i++ ) {
                if ( acceptdata( elem ) ) {
                    if ( ( data = elem[ datapriv.expando ] ) ) {
                        if ( data.events ) {
                            for ( type in data.events ) {
                                if ( special[ type ] ) {
                                    jquery.event.remove( elem, type );

                                    // this is a shortcut to avoid jquery.event.remove's overhead
                                } else {
                                    jquery.removeevent( elem, type, data.handle );
                                }
                            }
                        }

                        // support: chrome <=35 - 45+
                        // assign undefined instead of using delete, see data#remove
                        elem[ datapriv.expando ] = undefined;
                    }
                    if ( elem[ datauser.expando ] ) {

                        // support: chrome <=35 - 45+
                        // assign undefined instead of using delete, see data#remove
                        elem[ datauser.expando ] = undefined;
                    }
                }
            }
        }
    } );

    jquery.fn.extend( {
        detach: function( selector ) {
            return remove( this, selector, true );
        },

        remove: function( selector ) {
            return remove( this, selector );
        },

        text: function( value ) {
            return access( this, function( value ) {
                return value === undefined ?
                    jquery.text( this ) :
                    this.empty().each( function() {
                        if ( this.nodetype === 1 || this.nodetype === 11 || this.nodetype === 9 ) {
                            this.textcontent = value;
                        }
                    } );
            }, null, value, arguments.length );
        },

        append: function() {
            return dommanip( this, arguments, function( elem ) {
                if ( this.nodetype === 1 || this.nodetype === 11 || this.nodetype === 9 ) {
                    var target = manipulationtarget( this, elem );
                    target.appendchild( elem );
                }
            } );
        },

        prepend: function() {
            return dommanip( this, arguments, function( elem ) {
                if ( this.nodetype === 1 || this.nodetype === 11 || this.nodetype === 9 ) {
                    var target = manipulationtarget( this, elem );
                    target.insertbefore( elem, target.firstchild );
                }
            } );
        },

        before: function() {
            return dommanip( this, arguments, function( elem ) {
                if ( this.parentnode ) {
                    this.parentnode.insertbefore( elem, this );
                }
            } );
        },

        after: function() {
            return dommanip( this, arguments, function( elem ) {
                if ( this.parentnode ) {
                    this.parentnode.insertbefore( elem, this.nextsibling );
                }
            } );
        },

        empty: function() {
            var elem,
                i = 0;

            for ( ; ( elem = this[ i ] ) != null; i++ ) {
                if ( elem.nodetype === 1 ) {

                    // prevent memory leaks
                    jquery.cleandata( getall( elem, false ) );

                    // remove any remaining nodes
                    elem.textcontent = "";
                }
            }

            return this;
        },

        clone: function( dataandevents, deepdataandevents ) {
            dataandevents = dataandevents == null ? false : dataandevents;
            deepdataandevents = deepdataandevents == null ? dataandevents : deepdataandevents;

            return this.map( function() {
                return jquery.clone( this, dataandevents, deepdataandevents );
            } );
        },

        html: function( value ) {
            return access( this, function( value ) {
                var elem = this[ 0 ] || {},
                    i = 0,
                    l = this.length;

                if ( value === undefined && elem.nodetype === 1 ) {
                    return elem.innerhtml;
                }

                // see if we can take a shortcut and just use innerhtml
                if ( typeof value === "string" && !rnoinnerhtml.test( value ) &&
                    !wrapmap[ ( rtagname.exec( value ) || [ "", "" ] )[ 1 ].tolowercase() ] ) {

                    value = jquery.htmlprefilter( value );

                    try {
                        for ( ; i < l; i++ ) {
                            elem = this[ i ] || {};

                            // remove element nodes and prevent memory leaks
                            if ( elem.nodetype === 1 ) {
                                jquery.cleandata( getall( elem, false ) );
                                elem.innerhtml = value;
                            }
                        }

                        elem = 0;

                        // if using innerhtml throws an exception, use the fallback method
                    } catch ( e ) {}
                }

                if ( elem ) {
                    this.empty().append( value );
                }
            }, null, value, arguments.length );
        },

        replacewith: function() {
            var ignored = [];

            // make the changes, replacing each non-ignored context element with the new content
            return dommanip( this, arguments, function( elem ) {
                var parent = this.parentnode;

                if ( jquery.inarray( this, ignored ) < 0 ) {
                    jquery.cleandata( getall( this ) );
                    if ( parent ) {
                        parent.replacechild( elem, this );
                    }
                }

                // force callback invocation
            }, ignored );
        }
    } );

    jquery.each( {
        appendto: "append",
        prependto: "prepend",
        insertbefore: "before",
        insertafter: "after",
        replaceall: "replacewith"
    }, function( name, original ) {
        jquery.fn[ name ] = function( selector ) {
            var elems,
                ret = [],
                insert = jquery( selector ),
                last = insert.length - 1,
                i = 0;

            for ( ; i <= last; i++ ) {
                elems = i === last ? this : this.clone( true );
                jquery( insert[ i ] )[ original ]( elems );

                // support: android <=4.0 only, phantomjs 1 only
                // .get() because push.apply(_, arraylike) throws on ancient webkit
                push.apply( ret, elems.get() );
            }

            return this.pushstack( ret );
        };
    } );
    var rnumnonpx = new regexp( "^(" + pnum + ")(?!px)[a-z%]+$", "i" );

    var getstyles = function( elem ) {

        // support: ie <=11 only, firefox <=30 (#15098, #14150)
        // ie throws on elements created in popups
        // ff meanwhile throws on frame elements through "defaultview.getcomputedstyle"
        var view = elem.ownerdocument.defaultview;

        if ( !view || !view.opener ) {
            view = window;
        }

        return view.getcomputedstyle( elem );
    };

    var swap = function( elem, options, callback ) {
        var ret, name,
            old = {};

        // remember the old values, and insert the new ones
        for ( name in options ) {
            old[ name ] = elem.style[ name ];
            elem.style[ name ] = options[ name ];
        }

        ret = callback.call( elem );

        // revert the old values
        for ( name in options ) {
            elem.style[ name ] = old[ name ];
        }

        return ret;
    };


    var rboxstyle = new regexp( cssexpand.join( "|" ), "i" );



    ( function() {

        // executing both pixelposition & boxsizingreliable tests require only one layout
        // so they're executed at the same time to save the second computation.
        function computestyletests() {

            // this is a singleton, we need to execute it only once
            if ( !div ) {
                return;
            }

            container.style.csstext = "position:absolute;left:-11111px;width:60px;" +
                "margin-top:1px;padding:0;border:0";
            div.style.csstext =
                "position:relative;display:block;box-sizing:border-box;overflow:scroll;" +
                "margin:auto;border:1px;padding:1px;" +
                "width:60%;top:1%";
            documentelement.appendchild( container ).appendchild( div );

            var divstyle = window.getcomputedstyle( div );
            pixelpositionval = divstyle.top !== "1%";

            // support: android 4.0 - 4.3 only, firefox <=3 - 44
            reliablemarginleftval = roundpixelmeasures( divstyle.marginleft ) === 12;

            // support: android 4.0 - 4.3 only, safari <=9.1 - 10.1, ios <=7.0 - 9.3
            // some styles come back with percentage values, even though they shouldn't
            div.style.right = "60%";
            pixelboxstylesval = roundpixelmeasures( divstyle.right ) === 36;

            // support: ie 9 - 11 only
            // detect misreporting of content dimensions for box-sizing:border-box elements
            boxsizingreliableval = roundpixelmeasures( divstyle.width ) === 36;

            // support: ie 9 only
            // detect overflow:scroll screwiness (gh-3699)
            // support: chrome <=64
            // don't get tricked when zoom affects offsetwidth (gh-4029)
            div.style.position = "absolute";
            scrollboxsizeval = roundpixelmeasures( div.offsetwidth / 3 ) === 12;

            documentelement.removechild( container );

            // nullify the div so it wouldn't be stored in the memory and
            // it will also be a sign that checks already performed
            div = null;
        }

        function roundpixelmeasures( measure ) {
            return math.round( parsefloat( measure ) );
        }

        var pixelpositionval, boxsizingreliableval, scrollboxsizeval, pixelboxstylesval,
            reliabletrdimensionsval, reliablemarginleftval,
            container = document.createelement( "div" ),
            div = document.createelement( "div" );

        // finish early in limited (non-browser) environments
        if ( !div.style ) {
            return;
        }

        // support: ie <=9 - 11 only
        // style of cloned element affects source element cloned (#8908)
        div.style.backgroundclip = "content-box";
        div.clonenode( true ).style.backgroundclip = "";
        support.clearclonestyle = div.style.backgroundclip === "content-box";

        jquery.extend( support, {
            boxsizingreliable: function() {
                computestyletests();
                return boxsizingreliableval;
            },
            pixelboxstyles: function() {
                computestyletests();
                return pixelboxstylesval;
            },
            pixelposition: function() {
                computestyletests();
                return pixelpositionval;
            },
            reliablemarginleft: function() {
                computestyletests();
                return reliablemarginleftval;
            },
            scrollboxsize: function() {
                computestyletests();
                return scrollboxsizeval;
            },

            // support: ie 9 - 11+, edge 15 - 18+
            // ie/edge misreport `getcomputedstyle` of table rows with width/height
            // set in css while `offset*` properties report correct values.
            // behavior in ie 9 is more subtle than in newer versions & it passes
            // some versions of this test; make sure not to make it pass there!
            reliabletrdimensions: function() {
                var table, tr, trchild, trstyle;
                if ( reliabletrdimensionsval == null ) {
                    table = document.createelement( "table" );
                    tr = document.createelement( "tr" );
                    trchild = document.createelement( "div" );

                    table.style.csstext = "position:absolute;left:-11111px";
                    tr.style.height = "1px";
                    trchild.style.height = "9px";

                    documentelement
                        .appendchild( table )
                        .appendchild( tr )
                        .appendchild( trchild );

                    trstyle = window.getcomputedstyle( tr );
                    reliabletrdimensionsval = parseint( trstyle.height ) > 3;

                    documentelement.removechild( table );
                }
                return reliabletrdimensionsval;
            }
        } );
    } )();


    function curcss( elem, name, computed ) {
        var width, minwidth, maxwidth, ret,

            // support: firefox 51+
            // retrieving style before computed somehow
            // fixes an issue with getting wrong values
            // on detached elements
            style = elem.style;

        computed = computed || getstyles( elem );

        // getpropertyvalue is needed for:
        //   .css('filter') (ie 9 only, #12537)
        //   .css('--customproperty) (#3144)
        if ( computed ) {
            ret = computed.getpropertyvalue( name ) || computed[ name ];

            if ( ret === "" && !isattached( elem ) ) {
                ret = jquery.style( elem, name );
            }

            // a tribute to the "awesome hack by dean edwards"
            // android browser returns percentage for some values,
            // but width seems to be reliably pixels.
            // this is against the cssom draft spec:
            // https://drafts.csswg.org/cssom/#resolved-values
            if ( !support.pixelboxstyles() && rnumnonpx.test( ret ) && rboxstyle.test( name ) ) {

                // remember the original values
                width = style.width;
                minwidth = style.minwidth;
                maxwidth = style.maxwidth;

                // put in the new values to get a computed value out
                style.minwidth = style.maxwidth = style.width = ret;
                ret = computed.width;

                // revert the changed values
                style.width = width;
                style.minwidth = minwidth;
                style.maxwidth = maxwidth;
            }
        }

        return ret !== undefined ?

            // support: ie <=9 - 11 only
            // ie returns zindex value as an integer.
            ret + "" :
            ret;
    }


    function addgethookif( conditionfn, hookfn ) {

        // define the hook, we'll check on the first run if it's really needed.
        return {
            get: function() {
                if ( conditionfn() ) {

                    // hook not needed (or it's not possible to use it due
                    // to missing dependency), remove it.
                    delete this.get;
                    return;
                }

                // hook needed; redefine it so that the support test is not executed again.
                return ( this.get = hookfn ).apply( this, arguments );
            }
        };
    }


    var cssprefixes = [ "webkit", "moz", "ms" ],
        emptystyle = document.createelement( "div" ).style,
        vendorprops = {};

// return a vendor-prefixed property or undefined
    function vendorpropname( name ) {

        // check for vendor prefixed names
        var capname = name[ 0 ].touppercase() + name.slice( 1 ),
            i = cssprefixes.length;

        while ( i-- ) {
            name = cssprefixes[ i ] + capname;
            if ( name in emptystyle ) {
                return name;
            }
        }
    }

// return a potentially-mapped jquery.cssprops or vendor prefixed property
    function finalpropname( name ) {
        var final = jquery.cssprops[ name ] || vendorprops[ name ];

        if ( final ) {
            return final;
        }
        if ( name in emptystyle ) {
            return name;
        }
        return vendorprops[ name ] = vendorpropname( name ) || name;
    }


    var

        // swappable if display is none or starts with table
        // except "table", "table-cell", or "table-caption"
        // see here for display values: https://developer.mozilla.org/en-us/docs/css/display
        rdisplayswap = /^(none|table(?!-c[ea]).+)/,
        rcustomprop = /^--/,
        cssshow = { position: "absolute", visibility: "hidden", display: "block" },
        cssnormaltransform = {
            letterspacing: "0",
            fontweight: "400"
        };

    function setpositivenumber( _elem, value, subtract ) {

        // any relative (+/-) values have already been
        // normalized at this point
        var matches = rcssnum.exec( value );
        return matches ?

            // guard against undefined "subtract", e.g., when used as in csshooks
            math.max( 0, matches[ 2 ] - ( subtract || 0 ) ) + ( matches[ 3 ] || "px" ) :
            value;
    }

    function boxmodeladjustment( elem, dimension, box, isborderbox, styles, computedval ) {
        var i = dimension === "width" ? 1 : 0,
            extra = 0,
            delta = 0;

        // adjustment may not be necessary
        if ( box === ( isborderbox ? "border" : "content" ) ) {
            return 0;
        }

        for ( ; i < 4; i += 2 ) {

            // both box models exclude margin
            if ( box === "margin" ) {
                delta += jquery.css( elem, box + cssexpand[ i ], true, styles );
            }

            // if we get here with a content-box, we're seeking "padding" or "border" or "margin"
            if ( !isborderbox ) {

                // add padding
                delta += jquery.css( elem, "padding" + cssexpand[ i ], true, styles );

                // for "border" or "margin", add border
                if ( box !== "padding" ) {
                    delta += jquery.css( elem, "border" + cssexpand[ i ] + "width", true, styles );

                    // but still keep track of it otherwise
                } else {
                    extra += jquery.css( elem, "border" + cssexpand[ i ] + "width", true, styles );
                }

                // if we get here with a border-box (content + padding + border), we're seeking "content" or
                // "padding" or "margin"
            } else {

                // for "content", subtract padding
                if ( box === "content" ) {
                    delta -= jquery.css( elem, "padding" + cssexpand[ i ], true, styles );
                }

                // for "content" or "padding", subtract border
                if ( box !== "margin" ) {
                    delta -= jquery.css( elem, "border" + cssexpand[ i ] + "width", true, styles );
                }
            }
        }

        // account for positive content-box scroll gutter when requested by providing computedval
        if ( !isborderbox && computedval >= 0 ) {

            // offsetwidth/offsetheight is a rounded sum of content, padding, scroll gutter, and border
            // assuming integer scroll gutter, subtract the rest and round down
            delta += math.max( 0, math.ceil(
                elem[ "offset" + dimension[ 0 ].touppercase() + dimension.slice( 1 ) ] -
                computedval -
                delta -
                extra -
                0.5

                // if offsetwidth/offsetheight is unknown, then we can't determine content-box scroll gutter
                // use an explicit zero to avoid nan (gh-3964)
            ) ) || 0;
        }

        return delta;
    }

    function getwidthorheight( elem, dimension, extra ) {

        // start with computed style
        var styles = getstyles( elem ),

            // to avoid forcing a reflow, only fetch boxsizing if we need it (gh-4322).
            // fake content-box until we know it's needed to know the true value.
            boxsizingneeded = !support.boxsizingreliable() || extra,
            isborderbox = boxsizingneeded &&
                jquery.css( elem, "boxsizing", false, styles ) === "border-box",
            valueisborderbox = isborderbox,

            val = curcss( elem, dimension, styles ),
            offsetprop = "offset" + dimension[ 0 ].touppercase() + dimension.slice( 1 );

        // support: firefox <=54
        // return a confounding non-pixel value or feign ignorance, as appropriate.
        if ( rnumnonpx.test( val ) ) {
            if ( !extra ) {
                return val;
            }
            val = "auto";
        }


        // support: ie 9 - 11 only
        // use offsetwidth/offsetheight for when box sizing is unreliable.
        // in those cases, the computed value can be trusted to be border-box.
        if ( ( !support.boxsizingreliable() && isborderbox ||

            // support: ie 10 - 11+, edge 15 - 18+
            // ie/edge misreport `getcomputedstyle` of table rows with width/height
            // set in css while `offset*` properties report correct values.
            // interestingly, in some cases ie 9 doesn't suffer from this issue.
            !support.reliabletrdimensions() && nodename( elem, "tr" ) ||

            // fall back to offsetwidth/offsetheight when value is "auto"
            // this happens for inline elements with no explicit setting (gh-3571)
            val === "auto" ||

            // support: android <=4.1 - 4.3 only
            // also use offsetwidth/offsetheight for misreported inline dimensions (gh-3602)
            !parsefloat( val ) && jquery.css( elem, "display", false, styles ) === "inline" ) &&

            // make sure the element is visible & connected
            elem.getclientrects().length ) {

            isborderbox = jquery.css( elem, "boxsizing", false, styles ) === "border-box";

            // where available, offsetwidth/offsetheight approximate border box dimensions.
            // where not available (e.g., svg), assume unreliable box-sizing and interpret the
            // retrieved value as a content box dimension.
            valueisborderbox = offsetprop in elem;
            if ( valueisborderbox ) {
                val = elem[ offsetprop ];
            }
        }

        // normalize "" and auto
        val = parsefloat( val ) || 0;

        // adjust for the element's box model
        return ( val +
            boxmodeladjustment(
                elem,
                dimension,
                extra || ( isborderbox ? "border" : "content" ),
                valueisborderbox,
                styles,

                // provide the current computed size to request scroll gutter calculation (gh-3589)
                val
            )
        ) + "px";
    }

    jquery.extend( {

        // add in style property hooks for overriding the default
        // behavior of getting and setting a style property
        csshooks: {
            opacity: {
                get: function( elem, computed ) {
                    if ( computed ) {

                        // we should always get a number back from opacity
                        var ret = curcss( elem, "opacity" );
                        return ret === "" ? "1" : ret;
                    }
                }
            }
        },

        // don't automatically add "px" to these possibly-unitless properties
        cssnumber: {
            "animationiterationcount": true,
            "columncount": true,
            "fillopacity": true,
            "flexgrow": true,
            "flexshrink": true,
            "fontweight": true,
            "gridarea": true,
            "gridcolumn": true,
            "gridcolumnend": true,
            "gridcolumnstart": true,
            "gridrow": true,
            "gridrowend": true,
            "gridrowstart": true,
            "lineheight": true,
            "opacity": true,
            "order": true,
            "orphans": true,
            "widows": true,
            "zindex": true,
            "zoom": true
        },

        // add in properties whose names you wish to fix before
        // setting or getting the value
        cssprops: {},

        // get and set the style property on a dom node
        style: function( elem, name, value, extra ) {

            // don't set styles on text and comment nodes
            if ( !elem || elem.nodetype === 3 || elem.nodetype === 8 || !elem.style ) {
                return;
            }

            // make sure that we're working with the right name
            var ret, type, hooks,
                origname = camelcase( name ),
                iscustomprop = rcustomprop.test( name ),
                style = elem.style;

            // make sure that we're working with the right name. we don't
            // want to query the value if it is a css custom property
            // since they are user-defined.
            if ( !iscustomprop ) {
                name = finalpropname( origname );
            }

            // gets hook for the prefixed version, then unprefixed version
            hooks = jquery.csshooks[ name ] || jquery.csshooks[ origname ];

            // check if we're setting a value
            if ( value !== undefined ) {
                type = typeof value;

                // convert "+=" or "-=" to relative numbers (#7345)
                if ( type === "string" && ( ret = rcssnum.exec( value ) ) && ret[ 1 ] ) {
                    value = adjustcss( elem, name, ret );

                    // fixes bug #9237
                    type = "number";
                }

                // make sure that null and nan values aren't set (#7116)
                if ( value == null || value !== value ) {
                    return;
                }

                // if a number was passed in, add the unit (except for certain css properties)
                // the iscustomprop check can be removed in jquery 4.0 when we only auto-append
                // "px" to a few hardcoded values.
                if ( type === "number" && !iscustomprop ) {
                    value += ret && ret[ 3 ] || ( jquery.cssnumber[ origname ] ? "" : "px" );
                }

                // background-* props affect original clone's values
                if ( !support.clearclonestyle && value === "" && name.indexof( "background" ) === 0 ) {
                    style[ name ] = "inherit";
                }

                // if a hook was provided, use that value, otherwise just set the specified value
                if ( !hooks || !( "set" in hooks ) ||
                    ( value = hooks.set( elem, value, extra ) ) !== undefined ) {

                    if ( iscustomprop ) {
                        style.setproperty( name, value );
                    } else {
                        style[ name ] = value;
                    }
                }

            } else {

                // if a hook was provided get the non-computed value from there
                if ( hooks && "get" in hooks &&
                    ( ret = hooks.get( elem, false, extra ) ) !== undefined ) {

                    return ret;
                }

                // otherwise just get the value from the style object
                return style[ name ];
            }
        },

        css: function( elem, name, extra, styles ) {
            var val, num, hooks,
                origname = camelcase( name ),
                iscustomprop = rcustomprop.test( name );

            // make sure that we're working with the right name. we don't
            // want to modify the value if it is a css custom property
            // since they are user-defined.
            if ( !iscustomprop ) {
                name = finalpropname( origname );
            }

            // try prefixed name followed by the unprefixed name
            hooks = jquery.csshooks[ name ] || jquery.csshooks[ origname ];

            // if a hook was provided get the computed value from there
            if ( hooks && "get" in hooks ) {
                val = hooks.get( elem, true, extra );
            }

            // otherwise, if a way to get the computed value exists, use that
            if ( val === undefined ) {
                val = curcss( elem, name, styles );
            }

            // convert "normal" to computed value
            if ( val === "normal" && name in cssnormaltransform ) {
                val = cssnormaltransform[ name ];
            }

            // make numeric if forced or a qualifier was provided and val looks numeric
            if ( extra === "" || extra ) {
                num = parsefloat( val );
                return extra === true || isfinite( num ) ? num || 0 : val;
            }

            return val;
        }
    } );

    jquery.each( [ "height", "width" ], function( _i, dimension ) {
        jquery.csshooks[ dimension ] = {
            get: function( elem, computed, extra ) {
                if ( computed ) {

                    // certain elements can have dimension info if we invisibly show them
                    // but it must have a current display style that would benefit
                    return rdisplayswap.test( jquery.css( elem, "display" ) ) &&

                    // support: safari 8+
                    // table columns in safari have non-zero offsetwidth & zero
                    // getboundingclientrect().width unless display is changed.
                    // support: ie <=11 only
                    // running getboundingclientrect on a disconnected node
                    // in ie throws an error.
                    ( !elem.getclientrects().length || !elem.getboundingclientrect().width ) ?
                        swap( elem, cssshow, function() {
                            return getwidthorheight( elem, dimension, extra );
                        } ) :
                        getwidthorheight( elem, dimension, extra );
                }
            },

            set: function( elem, value, extra ) {
                var matches,
                    styles = getstyles( elem ),

                    // only read styles.position if the test has a chance to fail
                    // to avoid forcing a reflow.
                    scrollboxsizebuggy = !support.scrollboxsize() &&
                        styles.position === "absolute",

                    // to avoid forcing a reflow, only fetch boxsizing if we need it (gh-3991)
                    boxsizingneeded = scrollboxsizebuggy || extra,
                    isborderbox = boxsizingneeded &&
                        jquery.css( elem, "boxsizing", false, styles ) === "border-box",
                    subtract = extra ?
                        boxmodeladjustment(
                            elem,
                            dimension,
                            extra,
                            isborderbox,
                            styles
                        ) :
                        0;

                // account for unreliable border-box dimensions by comparing offset* to computed and
                // faking a content-box to get border and padding (gh-3699)
                if ( isborderbox && scrollboxsizebuggy ) {
                    subtract -= math.ceil(
                        elem[ "offset" + dimension[ 0 ].touppercase() + dimension.slice( 1 ) ] -
                        parsefloat( styles[ dimension ] ) -
                        boxmodeladjustment( elem, dimension, "border", false, styles ) -
                        0.5
                    );
                }

                // convert to pixels if value adjustment is needed
                if ( subtract && ( matches = rcssnum.exec( value ) ) &&
                    ( matches[ 3 ] || "px" ) !== "px" ) {

                    elem.style[ dimension ] = value;
                    value = jquery.css( elem, dimension );
                }

                return setpositivenumber( elem, value, subtract );
            }
        };
    } );

    jquery.csshooks.marginleft = addgethookif( support.reliablemarginleft,
        function( elem, computed ) {
            if ( computed ) {
                return ( parsefloat( curcss( elem, "marginleft" ) ) ||
                    elem.getboundingclientrect().left -
                    swap( elem, { marginleft: 0 }, function() {
                        return elem.getboundingclientrect().left;
                    } )
                ) + "px";
            }
        }
    );

// these hooks are used by animate to expand properties
    jquery.each( {
        margin: "",
        padding: "",
        border: "width"
    }, function( prefix, suffix ) {
        jquery.csshooks[ prefix + suffix ] = {
            expand: function( value ) {
                var i = 0,
                    expanded = {},

                    // assumes a single number if not a string
                    parts = typeof value === "string" ? value.split( " " ) : [ value ];

                for ( ; i < 4; i++ ) {
                    expanded[ prefix + cssexpand[ i ] + suffix ] =
                        parts[ i ] || parts[ i - 2 ] || parts[ 0 ];
                }

                return expanded;
            }
        };

        if ( prefix !== "margin" ) {
            jquery.csshooks[ prefix + suffix ].set = setpositivenumber;
        }
    } );

    jquery.fn.extend( {
        css: function( name, value ) {
            return access( this, function( elem, name, value ) {
                var styles, len,
                    map = {},
                    i = 0;

                if ( array.isarray( name ) ) {
                    styles = getstyles( elem );
                    len = name.length;

                    for ( ; i < len; i++ ) {
                        map[ name[ i ] ] = jquery.css( elem, name[ i ], false, styles );
                    }

                    return map;
                }

                return value !== undefined ?
                    jquery.style( elem, name, value ) :
                    jquery.css( elem, name );
            }, name, value, arguments.length > 1 );
        }
    } );


    function tween( elem, options, prop, end, easing ) {
        return new tween.prototype.init( elem, options, prop, end, easing );
    }
    jquery.tween = tween;

    tween.prototype = {
        constructor: tween,
        init: function( elem, options, prop, end, easing, unit ) {
            this.elem = elem;
            this.prop = prop;
            this.easing = easing || jquery.easing._default;
            this.options = options;
            this.start = this.now = this.cur();
            this.end = end;
            this.unit = unit || ( jquery.cssnumber[ prop ] ? "" : "px" );
        },
        cur: function() {
            var hooks = tween.prophooks[ this.prop ];

            return hooks && hooks.get ?
                hooks.get( this ) :
                tween.prophooks._default.get( this );
        },
        run: function( percent ) {
            var eased,
                hooks = tween.prophooks[ this.prop ];

            if ( this.options.duration ) {
                this.pos = eased = jquery.easing[ this.easing ](
                    percent, this.options.duration * percent, 0, 1, this.options.duration
                );
            } else {
                this.pos = eased = percent;
            }
            this.now = ( this.end - this.start ) * eased + this.start;

            if ( this.options.step ) {
                this.options.step.call( this.elem, this.now, this );
            }

            if ( hooks && hooks.set ) {
                hooks.set( this );
            } else {
                tween.prophooks._default.set( this );
            }
            return this;
        }
    };

    tween.prototype.init.prototype = tween.prototype;

    tween.prophooks = {
        _default: {
            get: function( tween ) {
                var result;

                // use a property on the element directly when it is not a dom element,
                // or when there is no matching style property that exists.
                if ( tween.elem.nodetype !== 1 ||
                    tween.elem[ tween.prop ] != null && tween.elem.style[ tween.prop ] == null ) {
                    return tween.elem[ tween.prop ];
                }

                // passing an empty string as a 3rd parameter to .css will automatically
                // attempt a parsefloat and fallback to a string if the parse fails.
                // simple values such as "10px" are parsed to float;
                // complex values such as "rotate(1rad)" are returned as-is.
                result = jquery.css( tween.elem, tween.prop, "" );

                // empty strings, null, undefined and "auto" are converted to 0.
                return !result || result === "auto" ? 0 : result;
            },
            set: function( tween ) {

                // use step hook for back compat.
                // use csshook if its there.
                // use .style if available and use plain properties where available.
                if ( jquery.fx.step[ tween.prop ] ) {
                    jquery.fx.step[ tween.prop ]( tween );
                } else if ( tween.elem.nodetype === 1 && (
                    jquery.csshooks[ tween.prop ] ||
                    tween.elem.style[ finalpropname( tween.prop ) ] != null ) ) {
                    jquery.style( tween.elem, tween.prop, tween.now + tween.unit );
                } else {
                    tween.elem[ tween.prop ] = tween.now;
                }
            }
        }
    };

// support: ie <=9 only
// panic based approach to setting things on disconnected nodes
    tween.prophooks.scrolltop = tween.prophooks.scrollleft = {
        set: function( tween ) {
            if ( tween.elem.nodetype && tween.elem.parentnode ) {
                tween.elem[ tween.prop ] = tween.now;
            }
        }
    };

    jquery.easing = {
        linear: function( p ) {
            return p;
        },
        swing: function( p ) {
            return 0.5 - math.cos( p * math.pi ) / 2;
        },
        _default: "swing"
    };

    jquery.fx = tween.prototype.init;

// back compat <1.8 extension point
    jquery.fx.step = {};




    var
        fxnow, inprogress,
        rfxtypes = /^(?:toggle|show|hide)$/,
        rrun = /queuehooks$/;

    function schedule() {
        if ( inprogress ) {
            if ( document.hidden === false && window.requestanimationframe ) {
                window.requestanimationframe( schedule );
            } else {
                window.settimeout( schedule, jquery.fx.interval );
            }

            jquery.fx.tick();
        }
    }

// animations created synchronously will run synchronously
    function createfxnow() {
        window.settimeout( function() {
            fxnow = undefined;
        } );
        return ( fxnow = date.now() );
    }

// generate parameters to create a standard animation
    function genfx( type, includewidth ) {
        var which,
            i = 0,
            attrs = { height: type };

        // if we include width, step value is 1 to do all cssexpand values,
        // otherwise step value is 2 to skip over left and right
        includewidth = includewidth ? 1 : 0;
        for ( ; i < 4; i += 2 - includewidth ) {
            which = cssexpand[ i ];
            attrs[ "margin" + which ] = attrs[ "padding" + which ] = type;
        }

        if ( includewidth ) {
            attrs.opacity = attrs.width = type;
        }

        return attrs;
    }

    function createtween( value, prop, animation ) {
        var tween,
            collection = ( animation.tweeners[ prop ] || [] ).concat( animation.tweeners[ "*" ] ),
            index = 0,
            length = collection.length;
        for ( ; index < length; index++ ) {
            if ( ( tween = collection[ index ].call( animation, prop, value ) ) ) {

                // we're done with this property
                return tween;
            }
        }
    }

    function defaultprefilter( elem, props, opts ) {
        var prop, value, toggle, hooks, oldfire, proptween, restoredisplay, display,
            isbox = "width" in props || "height" in props,
            anim = this,
            orig = {},
            style = elem.style,
            hidden = elem.nodetype && ishiddenwithintree( elem ),
            datashow = datapriv.get( elem, "fxshow" );

        // queue-skipping animations hijack the fx hooks
        if ( !opts.queue ) {
            hooks = jquery._queuehooks( elem, "fx" );
            if ( hooks.unqueued == null ) {
                hooks.unqueued = 0;
                oldfire = hooks.empty.fire;
                hooks.empty.fire = function() {
                    if ( !hooks.unqueued ) {
                        oldfire();
                    }
                };
            }
            hooks.unqueued++;

            anim.always( function() {

                // ensure the complete handler is called before this completes
                anim.always( function() {
                    hooks.unqueued--;
                    if ( !jquery.queue( elem, "fx" ).length ) {
                        hooks.empty.fire();
                    }
                } );
            } );
        }

        // detect show/hide animations
        for ( prop in props ) {
            value = props[ prop ];
            if ( rfxtypes.test( value ) ) {
                delete props[ prop ];
                toggle = toggle || value === "toggle";
                if ( value === ( hidden ? "hide" : "show" ) ) {

                    // pretend to be hidden if this is a "show" and
                    // there is still data from a stopped show/hide
                    if ( value === "show" && datashow && datashow[ prop ] !== undefined ) {
                        hidden = true;

                        // ignore all other no-op show/hide data
                    } else {
                        continue;
                    }
                }
                orig[ prop ] = datashow && datashow[ prop ] || jquery.style( elem, prop );
            }
        }

        // bail out if this is a no-op like .hide().hide()
        proptween = !jquery.isemptyobject( props );
        if ( !proptween && jquery.isemptyobject( orig ) ) {
            return;
        }

        // restrict "overflow" and "display" styles during box animations
        if ( isbox && elem.nodetype === 1 ) {

            // support: ie <=9 - 11, edge 12 - 15
            // record all 3 overflow attributes because ie does not infer the shorthand
            // from identically-valued overflowx and overflowy and edge just mirrors
            // the overflowx value there.
            opts.overflow = [ style.overflow, style.overflowx, style.overflowy ];

            // identify a display type, preferring old show/hide data over the css cascade
            restoredisplay = datashow && datashow.display;
            if ( restoredisplay == null ) {
                restoredisplay = datapriv.get( elem, "display" );
            }
            display = jquery.css( elem, "display" );
            if ( display === "none" ) {
                if ( restoredisplay ) {
                    display = restoredisplay;
                } else {

                    // get nonempty value(s) by temporarily forcing visibility
                    showhide( [ elem ], true );
                    restoredisplay = elem.style.display || restoredisplay;
                    display = jquery.css( elem, "display" );
                    showhide( [ elem ] );
                }
            }

            // animate inline elements as inline-block
            if ( display === "inline" || display === "inline-block" && restoredisplay != null ) {
                if ( jquery.css( elem, "float" ) === "none" ) {

                    // restore the original display value at the end of pure show/hide animations
                    if ( !proptween ) {
                        anim.done( function() {
                            style.display = restoredisplay;
                        } );
                        if ( restoredisplay == null ) {
                            display = style.display;
                            restoredisplay = display === "none" ? "" : display;
                        }
                    }
                    style.display = "inline-block";
                }
            }
        }

        if ( opts.overflow ) {
            style.overflow = "hidden";
            anim.always( function() {
                style.overflow = opts.overflow[ 0 ];
                style.overflowx = opts.overflow[ 1 ];
                style.overflowy = opts.overflow[ 2 ];
            } );
        }

        // implement show/hide animations
        proptween = false;
        for ( prop in orig ) {

            // general show/hide setup for this element animation
            if ( !proptween ) {
                if ( datashow ) {
                    if ( "hidden" in datashow ) {
                        hidden = datashow.hidden;
                    }
                } else {
                    datashow = datapriv.access( elem, "fxshow", { display: restoredisplay } );
                }

                // store hidden/visible for toggle so `.stop().toggle()` "reverses"
                if ( toggle ) {
                    datashow.hidden = !hidden;
                }

                // show elements before animating them
                if ( hidden ) {
                    showhide( [ elem ], true );
                }

                /* eslint-disable no-loop-func */

                anim.done( function() {

                    /* eslint-enable no-loop-func */

                    // the final step of a "hide" animation is actually hiding the element
                    if ( !hidden ) {
                        showhide( [ elem ] );
                    }
                    datapriv.remove( elem, "fxshow" );
                    for ( prop in orig ) {
                        jquery.style( elem, prop, orig[ prop ] );
                    }
                } );
            }

            // per-property setup
            proptween = createtween( hidden ? datashow[ prop ] : 0, prop, anim );
            if ( !( prop in datashow ) ) {
                datashow[ prop ] = proptween.start;
                if ( hidden ) {
                    proptween.end = proptween.start;
                    proptween.start = 0;
                }
            }
        }
    }

    function propfilter( props, specialeasing ) {
        var index, name, easing, value, hooks;

        // camelcase, specialeasing and expand csshook pass
        for ( index in props ) {
            name = camelcase( index );
            easing = specialeasing[ name ];
            value = props[ index ];
            if ( array.isarray( value ) ) {
                easing = value[ 1 ];
                value = props[ index ] = value[ 0 ];
            }

            if ( index !== name ) {
                props[ name ] = value;
                delete props[ index ];
            }

            hooks = jquery.csshooks[ name ];
            if ( hooks && "expand" in hooks ) {
                value = hooks.expand( value );
                delete props[ name ];

                // not quite $.extend, this won't overwrite existing keys.
                // reusing 'index' because we have the correct "name"
                for ( index in value ) {
                    if ( !( index in props ) ) {
                        props[ index ] = value[ index ];
                        specialeasing[ index ] = easing;
                    }
                }
            } else {
                specialeasing[ name ] = easing;
            }
        }
    }

    function animation( elem, properties, options ) {
        var result,
            stopped,
            index = 0,
            length = animation.prefilters.length,
            deferred = jquery.deferred().always( function() {

                // don't match elem in the :animated selector
                delete tick.elem;
            } ),
            tick = function() {
                if ( stopped ) {
                    return false;
                }
                var currenttime = fxnow || createfxnow(),
                    remaining = math.max( 0, animation.starttime + animation.duration - currenttime ),

                    // support: android 2.3 only
                    // archaic crash bug won't allow us to use `1 - ( 0.5 || 0 )` (#12497)
                    temp = remaining / animation.duration || 0,
                    percent = 1 - temp,
                    index = 0,
                    length = animation.tweens.length;

                for ( ; index < length; index++ ) {
                    animation.tweens[ index ].run( percent );
                }

                deferred.notifywith( elem, [ animation, percent, remaining ] );

                // if there's more to do, yield
                if ( percent < 1 && length ) {
                    return remaining;
                }

                // if this was an empty animation, synthesize a final progress notification
                if ( !length ) {
                    deferred.notifywith( elem, [ animation, 1, 0 ] );
                }

                // resolve the animation and report its conclusion
                deferred.resolvewith( elem, [ animation ] );
                return false;
            },
            animation = deferred.promise( {
                elem: elem,
                props: jquery.extend( {}, properties ),
                opts: jquery.extend( true, {
                    specialeasing: {},
                    easing: jquery.easing._default
                }, options ),
                originalproperties: properties,
                originaloptions: options,
                starttime: fxnow || createfxnow(),
                duration: options.duration,
                tweens: [],
                createtween: function( prop, end ) {
                    var tween = jquery.tween( elem, animation.opts, prop, end,
                        animation.opts.specialeasing[ prop ] || animation.opts.easing );
                    animation.tweens.push( tween );
                    return tween;
                },
                stop: function( gotoend ) {
                    var index = 0,

                        // if we are going to the end, we want to run all the tweens
                        // otherwise we skip this part
                        length = gotoend ? animation.tweens.length : 0;
                    if ( stopped ) {
                        return this;
                    }
                    stopped = true;
                    for ( ; index < length; index++ ) {
                        animation.tweens[ index ].run( 1 );
                    }

                    // resolve when we played the last frame; otherwise, reject
                    if ( gotoend ) {
                        deferred.notifywith( elem, [ animation, 1, 0 ] );
                        deferred.resolvewith( elem, [ animation, gotoend ] );
                    } else {
                        deferred.rejectwith( elem, [ animation, gotoend ] );
                    }
                    return this;
                }
            } ),
            props = animation.props;

        propfilter( props, animation.opts.specialeasing );

        for ( ; index < length; index++ ) {
            result = animation.prefilters[ index ].call( animation, elem, props, animation.opts );
            if ( result ) {
                if ( isfunction( result.stop ) ) {
                    jquery._queuehooks( animation.elem, animation.opts.queue ).stop =
                        result.stop.bind( result );
                }
                return result;
            }
        }

        jquery.map( props, createtween, animation );

        if ( isfunction( animation.opts.start ) ) {
            animation.opts.start.call( elem, animation );
        }

        // attach callbacks from options
        animation
            .progress( animation.opts.progress )
            .done( animation.opts.done, animation.opts.complete )
            .fail( animation.opts.fail )
            .always( animation.opts.always );

        jquery.fx.timer(
            jquery.extend( tick, {
                elem: elem,
                anim: animation,
                queue: animation.opts.queue
            } )
        );

        return animation;
    }

    jquery.animation = jquery.extend( animation, {

        tweeners: {
            "*": [ function( prop, value ) {
                var tween = this.createtween( prop, value );
                adjustcss( tween.elem, prop, rcssnum.exec( value ), tween );
                return tween;
            } ]
        },

        tweener: function( props, callback ) {
            if ( isfunction( props ) ) {
                callback = props;
                props = [ "*" ];
            } else {
                props = props.match( rnothtmlwhite );
            }

            var prop,
                index = 0,
                length = props.length;

            for ( ; index < length; index++ ) {
                prop = props[ index ];
                animation.tweeners[ prop ] = animation.tweeners[ prop ] || [];
                animation.tweeners[ prop ].unshift( callback );
            }
        },

        prefilters: [ defaultprefilter ],

        prefilter: function( callback, prepend ) {
            if ( prepend ) {
                animation.prefilters.unshift( callback );
            } else {
                animation.prefilters.push( callback );
            }
        }
    } );

    jquery.speed = function( speed, easing, fn ) {
        var opt = speed && typeof speed === "object" ? jquery.extend( {}, speed ) : {
            complete: fn || !fn && easing ||
                isfunction( speed ) && speed,
            duration: speed,
            easing: fn && easing || easing && !isfunction( easing ) && easing
        };

        // go to the end state if fx are off
        if ( jquery.fx.off ) {
            opt.duration = 0;

        } else {
            if ( typeof opt.duration !== "number" ) {
                if ( opt.duration in jquery.fx.speeds ) {
                    opt.duration = jquery.fx.speeds[ opt.duration ];

                } else {
                    opt.duration = jquery.fx.speeds._default;
                }
            }
        }

        // normalize opt.queue - true/undefined/null -> "fx"
        if ( opt.queue == null || opt.queue === true ) {
            opt.queue = "fx";
        }

        // queueing
        opt.old = opt.complete;

        opt.complete = function() {
            if ( isfunction( opt.old ) ) {
                opt.old.call( this );
            }

            if ( opt.queue ) {
                jquery.dequeue( this, opt.queue );
            }
        };

        return opt;
    };

    jquery.fn.extend( {
        fadeto: function( speed, to, easing, callback ) {

            // show any hidden elements after setting opacity to 0
            return this.filter( ishiddenwithintree ).css( "opacity", 0 ).show()

            // animate to the value specified
                .end().animate( { opacity: to }, speed, easing, callback );
        },
        animate: function( prop, speed, easing, callback ) {
            var empty = jquery.isemptyobject( prop ),
                optall = jquery.speed( speed, easing, callback ),
                doanimation = function() {

                    // operate on a copy of prop so per-property easing won't be lost
                    var anim = animation( this, jquery.extend( {}, prop ), optall );

                    // empty animations, or finishing resolves immediately
                    if ( empty || datapriv.get( this, "finish" ) ) {
                        anim.stop( true );
                    }
                };
            doanimation.finish = doanimation;

            return empty || optall.queue === false ?
                this.each( doanimation ) :
                this.queue( optall.queue, doanimation );
        },
        stop: function( type, clearqueue, gotoend ) {
            var stopqueue = function( hooks ) {
                var stop = hooks.stop;
                delete hooks.stop;
                stop( gotoend );
            };

            if ( typeof type !== "string" ) {
                gotoend = clearqueue;
                clearqueue = type;
                type = undefined;
            }
            if ( clearqueue ) {
                this.queue( type || "fx", [] );
            }

            return this.each( function() {
                var dequeue = true,
                    index = type != null && type + "queuehooks",
                    timers = jquery.timers,
                    data = datapriv.get( this );

                if ( index ) {
                    if ( data[ index ] && data[ index ].stop ) {
                        stopqueue( data[ index ] );
                    }
                } else {
                    for ( index in data ) {
                        if ( data[ index ] && data[ index ].stop && rrun.test( index ) ) {
                            stopqueue( data[ index ] );
                        }
                    }
                }

                for ( index = timers.length; index--; ) {
                    if ( timers[ index ].elem === this &&
                        ( type == null || timers[ index ].queue === type ) ) {

                        timers[ index ].anim.stop( gotoend );
                        dequeue = false;
                        timers.splice( index, 1 );
                    }
                }

                // start the next in the queue if the last step wasn't forced.
                // timers currently will call their complete callbacks, which
                // will dequeue but only if they were gotoend.
                if ( dequeue || !gotoend ) {
                    jquery.dequeue( this, type );
                }
            } );
        },
        finish: function( type ) {
            if ( type !== false ) {
                type = type || "fx";
            }
            return this.each( function() {
                var index,
                    data = datapriv.get( this ),
                    queue = data[ type + "queue" ],
                    hooks = data[ type + "queuehooks" ],
                    timers = jquery.timers,
                    length = queue ? queue.length : 0;

                // enable finishing flag on private data
                data.finish = true;

                // empty the queue first
                jquery.queue( this, type, [] );

                if ( hooks && hooks.stop ) {
                    hooks.stop.call( this, true );
                }

                // look for any active animations, and finish them
                for ( index = timers.length; index--; ) {
                    if ( timers[ index ].elem === this && timers[ index ].queue === type ) {
                        timers[ index ].anim.stop( true );
                        timers.splice( index, 1 );
                    }
                }

                // look for any animations in the old queue and finish them
                for ( index = 0; index < length; index++ ) {
                    if ( queue[ index ] && queue[ index ].finish ) {
                        queue[ index ].finish.call( this );
                    }
                }

                // turn off finishing flag
                delete data.finish;
            } );
        }
    } );

    jquery.each( [ "toggle", "show", "hide" ], function( _i, name ) {
        var cssfn = jquery.fn[ name ];
        jquery.fn[ name ] = function( speed, easing, callback ) {
            return speed == null || typeof speed === "boolean" ?
                cssfn.apply( this, arguments ) :
                this.animate( genfx( name, true ), speed, easing, callback );
        };
    } );

// generate shortcuts for custom animations
    jquery.each( {
        slidedown: genfx( "show" ),
        slideup: genfx( "hide" ),
        slidetoggle: genfx( "toggle" ),
        fadein: { opacity: "show" },
        fadeout: { opacity: "hide" },
        fadetoggle: { opacity: "toggle" }
    }, function( name, props ) {
        jquery.fn[ name ] = function( speed, easing, callback ) {
            return this.animate( props, speed, easing, callback );
        };
    } );

    jquery.timers = [];
    jquery.fx.tick = function() {
        var timer,
            i = 0,
            timers = jquery.timers;

        fxnow = date.now();

        for ( ; i < timers.length; i++ ) {
            timer = timers[ i ];

            // run the timer and safely remove it when done (allowing for external removal)
            if ( !timer() && timers[ i ] === timer ) {
                timers.splice( i--, 1 );
            }
        }

        if ( !timers.length ) {
            jquery.fx.stop();
        }
        fxnow = undefined;
    };

    jquery.fx.timer = function( timer ) {
        jquery.timers.push( timer );
        jquery.fx.start();
    };

    jquery.fx.interval = 13;
    jquery.fx.start = function() {
        if ( inprogress ) {
            return;
        }

        inprogress = true;
        schedule();
    };

    jquery.fx.stop = function() {
        inprogress = null;
    };

    jquery.fx.speeds = {
        slow: 600,
        fast: 200,

        // default speed
        _default: 400
    };


// based off of the plugin by clint helfers, with permission.
// https://web.archive.org/web/20100324014747/http://blindsignals.com/index.php/2009/07/jquery-delay/
    jquery.fn.delay = function( time, type ) {
        time = jquery.fx ? jquery.fx.speeds[ time ] || time : time;
        type = type || "fx";

        return this.queue( type, function( next, hooks ) {
            var timeout = window.settimeout( next, time );
            hooks.stop = function() {
                window.cleartimeout( timeout );
            };
        } );
    };


    ( function() {
        var input = document.createelement( "input" ),
            select = document.createelement( "select" ),
            opt = select.appendchild( document.createelement( "option" ) );

        input.type = "checkbox";

        // support: android <=4.3 only
        // default value for a checkbox should be "on"
        support.checkon = input.value !== "";

        // support: ie <=11 only
        // must access selectedindex to make default options select
        support.optselected = opt.selected;

        // support: ie <=11 only
        // an input loses its value after becoming a radio
        input = document.createelement( "input" );
        input.value = "t";
        input.type = "radio";
        support.radiovalue = input.value === "t";
    } )();


    var boolhook,
        attrhandle = jquery.expr.attrhandle;

    jquery.fn.extend( {
        attr: function( name, value ) {
            return access( this, jquery.attr, name, value, arguments.length > 1 );
        },

        removeattr: function( name ) {
            return this.each( function() {
                jquery.removeattr( this, name );
            } );
        }
    } );

    jquery.extend( {
        attr: function( elem, name, value ) {
            var ret, hooks,
                ntype = elem.nodetype;

            // don't get/set attributes on text, comment and attribute nodes
            if ( ntype === 3 || ntype === 8 || ntype === 2 ) {
                return;
            }

            // fallback to prop when attributes are not supported
            if ( typeof elem.getattribute === "undefined" ) {
                return jquery.prop( elem, name, value );
            }

            // attribute hooks are determined by the lowercase version
            // grab necessary hook if one is defined
            if ( ntype !== 1 || !jquery.isxmldoc( elem ) ) {
                hooks = jquery.attrhooks[ name.tolowercase() ] ||
                    ( jquery.expr.match.bool.test( name ) ? boolhook : undefined );
            }

            if ( value !== undefined ) {
                if ( value === null ) {
                    jquery.removeattr( elem, name );
                    return;
                }

                if ( hooks && "set" in hooks &&
                    ( ret = hooks.set( elem, value, name ) ) !== undefined ) {
                    return ret;
                }

                elem.setattribute( name, value + "" );
                return value;
            }

            if ( hooks && "get" in hooks && ( ret = hooks.get( elem, name ) ) !== null ) {
                return ret;
            }

            ret = jquery.find.attr( elem, name );

            // non-existent attributes return null, we normalize to undefined
            return ret == null ? undefined : ret;
        },

        attrhooks: {
            type: {
                set: function( elem, value ) {
                    if ( !support.radiovalue && value === "radio" &&
                        nodename( elem, "input" ) ) {
                        var val = elem.value;
                        elem.setattribute( "type", value );
                        if ( val ) {
                            elem.value = val;
                        }
                        return value;
                    }
                }
            }
        },

        removeattr: function( elem, value ) {
            var name,
                i = 0,

                // attribute names can contain non-html whitespace characters
                // https://html.spec.whatwg.org/multipage/syntax.html#attributes-2
                attrnames = value && value.match( rnothtmlwhite );

            if ( attrnames && elem.nodetype === 1 ) {
                while ( ( name = attrnames[ i++ ] ) ) {
                    elem.removeattribute( name );
                }
            }
        }
    } );

// hooks for boolean attributes
    boolhook = {
        set: function( elem, value, name ) {
            if ( value === false ) {

                // remove boolean attributes when set to false
                jquery.removeattr( elem, name );
            } else {
                elem.setattribute( name, name );
            }
            return name;
        }
    };

    jquery.each( jquery.expr.match.bool.source.match( /\w+/g ), function( _i, name ) {
        var getter = attrhandle[ name ] || jquery.find.attr;

        attrhandle[ name ] = function( elem, name, isxml ) {
            var ret, handle,
                lowercasename = name.tolowercase();

            if ( !isxml ) {

                // avoid an infinite loop by temporarily removing this function from the getter
                handle = attrhandle[ lowercasename ];
                attrhandle[ lowercasename ] = ret;
                ret = getter( elem, name, isxml ) != null ?
                    lowercasename :
                    null;
                attrhandle[ lowercasename ] = handle;
            }
            return ret;
        };
    } );




    var rfocusable = /^(?:input|select|textarea|button)$/i,
        rclickable = /^(?:a|area)$/i;

    jquery.fn.extend( {
        prop: function( name, value ) {
            return access( this, jquery.prop, name, value, arguments.length > 1 );
        },

        removeprop: function( name ) {
            return this.each( function() {
                delete this[ jquery.propfix[ name ] || name ];
            } );
        }
    } );

    jquery.extend( {
        prop: function( elem, name, value ) {
            var ret, hooks,
                ntype = elem.nodetype;

            // don't get/set properties on text, comment and attribute nodes
            if ( ntype === 3 || ntype === 8 || ntype === 2 ) {
                return;
            }

            if ( ntype !== 1 || !jquery.isxmldoc( elem ) ) {

                // fix name and attach hooks
                name = jquery.propfix[ name ] || name;
                hooks = jquery.prophooks[ name ];
            }

            if ( value !== undefined ) {
                if ( hooks && "set" in hooks &&
                    ( ret = hooks.set( elem, value, name ) ) !== undefined ) {
                    return ret;
                }

                return ( elem[ name ] = value );
            }

            if ( hooks && "get" in hooks && ( ret = hooks.get( elem, name ) ) !== null ) {
                return ret;
            }

            return elem[ name ];
        },

        prophooks: {
            tabindex: {
                get: function( elem ) {

                    // support: ie <=9 - 11 only
                    // elem.tabindex doesn't always return the
                    // correct value when it hasn't been explicitly set
                    // https://web.archive.org/web/20141116233347/http://fluidproject.org/blog/2008/01/09/getting-setting-and-removing-tabindex-values-with-javascript/
                    // use proper attribute retrieval(#12072)
                    var tabindex = jquery.find.attr( elem, "tabindex" );

                    if ( tabindex ) {
                        return parseint( tabindex, 10 );
                    }

                    if (
                        rfocusable.test( elem.nodename ) ||
                        rclickable.test( elem.nodename ) &&
                        elem.href
                    ) {
                        return 0;
                    }

                    return -1;
                }
            }
        },

        propfix: {
            "for": "htmlfor",
            "class": "classname"
        }
    } );

// support: ie <=11 only
// accessing the selectedindex property
// forces the browser to respect setting selected
// on the option
// the getter ensures a default option is selected
// when in an optgroup
// eslint rule "no-unused-expressions" is disabled for this code
// since it considers such accessions noop
    if ( !support.optselected ) {
        jquery.prophooks.selected = {
            get: function( elem ) {

                /* eslint no-unused-expressions: "off" */

                var parent = elem.parentnode;
                if ( parent && parent.parentnode ) {
                    parent.parentnode.selectedindex;
                }
                return null;
            },
            set: function( elem ) {

                /* eslint no-unused-expressions: "off" */

                var parent = elem.parentnode;
                if ( parent ) {
                    parent.selectedindex;

                    if ( parent.parentnode ) {
                        parent.parentnode.selectedindex;
                    }
                }
            }
        };
    }

    jquery.each( [
        "tabindex",
        "readonly",
        "maxlength",
        "cellspacing",
        "cellpadding",
        "rowspan",
        "colspan",
        "usemap",
        "frameborder",
        "contenteditable"
    ], function() {
        jquery.propfix[ this.tolowercase() ] = this;
    } );




    // strip and collapse whitespace according to html spec
    // https://infra.spec.whatwg.org/#strip-and-collapse-ascii-whitespace
    function stripandcollapse( value ) {
        var tokens = value.match( rnothtmlwhite ) || [];
        return tokens.join( " " );
    }


    function getclass( elem ) {
        return elem.getattribute && elem.getattribute( "class" ) || "";
    }

    function classestoarray( value ) {
        if ( array.isarray( value ) ) {
            return value;
        }
        if ( typeof value === "string" ) {
            return value.match( rnothtmlwhite ) || [];
        }
        return [];
    }

    jquery.fn.extend( {
        addclass: function( value ) {
            var classes, elem, cur, curvalue, clazz, j, finalvalue,
                i = 0;

            if ( isfunction( value ) ) {
                return this.each( function( j ) {
                    jquery( this ).addclass( value.call( this, j, getclass( this ) ) );
                } );
            }

            classes = classestoarray( value );

            if ( classes.length ) {
                while ( ( elem = this[ i++ ] ) ) {
                    curvalue = getclass( elem );
                    cur = elem.nodetype === 1 && ( " " + stripandcollapse( curvalue ) + " " );

                    if ( cur ) {
                        j = 0;
                        while ( ( clazz = classes[ j++ ] ) ) {
                            if ( cur.indexof( " " + clazz + " " ) < 0 ) {
                                cur += clazz + " ";
                            }
                        }

                        // only assign if different to avoid unneeded rendering.
                        finalvalue = stripandcollapse( cur );
                        if ( curvalue !== finalvalue ) {
                            elem.setattribute( "class", finalvalue );
                        }
                    }
                }
            }

            return this;
        },

        removeclass: function( value ) {
            var classes, elem, cur, curvalue, clazz, j, finalvalue,
                i = 0;

            if ( isfunction( value ) ) {
                return this.each( function( j ) {
                    jquery( this ).removeclass( value.call( this, j, getclass( this ) ) );
                } );
            }

            if ( !arguments.length ) {
                return this.attr( "class", "" );
            }

            classes = classestoarray( value );

            if ( classes.length ) {
                while ( ( elem = this[ i++ ] ) ) {
                    curvalue = getclass( elem );

                    // this expression is here for better compressibility (see addclass)
                    cur = elem.nodetype === 1 && ( " " + stripandcollapse( curvalue ) + " " );

                    if ( cur ) {
                        j = 0;
                        while ( ( clazz = classes[ j++ ] ) ) {

                            // remove *all* instances
                            while ( cur.indexof( " " + clazz + " " ) > -1 ) {
                                cur = cur.replace( " " + clazz + " ", " " );
                            }
                        }

                        // only assign if different to avoid unneeded rendering.
                        finalvalue = stripandcollapse( cur );
                        if ( curvalue !== finalvalue ) {
                            elem.setattribute( "class", finalvalue );
                        }
                    }
                }
            }

            return this;
        },

        toggleclass: function( value, stateval ) {
            var type = typeof value,
                isvalidvalue = type === "string" || array.isarray( value );

            if ( typeof stateval === "boolean" && isvalidvalue ) {
                return stateval ? this.addclass( value ) : this.removeclass( value );
            }

            if ( isfunction( value ) ) {
                return this.each( function( i ) {
                    jquery( this ).toggleclass(
                        value.call( this, i, getclass( this ), stateval ),
                        stateval
                    );
                } );
            }

            return this.each( function() {
                var classname, i, self, classnames;

                if ( isvalidvalue ) {

                    // toggle individual class names
                    i = 0;
                    self = jquery( this );
                    classnames = classestoarray( value );

                    while ( ( classname = classnames[ i++ ] ) ) {

                        // check each classname given, space separated list
                        if ( self.hasclass( classname ) ) {
                            self.removeclass( classname );
                        } else {
                            self.addclass( classname );
                        }
                    }

                    // toggle whole class name
                } else if ( value === undefined || type === "boolean" ) {
                    classname = getclass( this );
                    if ( classname ) {

                        // store classname if set
                        datapriv.set( this, "__classname__", classname );
                    }

                    // if the element has a class name or if we're passed `false`,
                    // then remove the whole classname (if there was one, the above saved it).
                    // otherwise bring back whatever was previously saved (if anything),
                    // falling back to the empty string if nothing was stored.
                    if ( this.setattribute ) {
                        this.setattribute( "class",
                            classname || value === false ?
                                "" :
                                datapriv.get( this, "__classname__" ) || ""
                        );
                    }
                }
            } );
        },

        hasclass: function( selector ) {
            var classname, elem,
                i = 0;

            classname = " " + selector + " ";
            while ( ( elem = this[ i++ ] ) ) {
                if ( elem.nodetype === 1 &&
                    ( " " + stripandcollapse( getclass( elem ) ) + " " ).indexof( classname ) > -1 ) {
                    return true;
                }
            }

            return false;
        }
    } );




    var rreturn = /\r/g;

    jquery.fn.extend( {
        val: function( value ) {
            var hooks, ret, valueisfunction,
                elem = this[ 0 ];

            if ( !arguments.length ) {
                if ( elem ) {
                    hooks = jquery.valhooks[ elem.type ] ||
                        jquery.valhooks[ elem.nodename.tolowercase() ];

                    if ( hooks &&
                        "get" in hooks &&
                        ( ret = hooks.get( elem, "value" ) ) !== undefined
                    ) {
                        return ret;
                    }

                    ret = elem.value;

                    // handle most common string cases
                    if ( typeof ret === "string" ) {
                        return ret.replace( rreturn, "" );
                    }

                    // handle cases where value is null/undef or number
                    return ret == null ? "" : ret;
                }

                return;
            }

            valueisfunction = isfunction( value );

            return this.each( function( i ) {
                var val;

                if ( this.nodetype !== 1 ) {
                    return;
                }

                if ( valueisfunction ) {
                    val = value.call( this, i, jquery( this ).val() );
                } else {
                    val = value;
                }

                // treat null/undefined as ""; convert numbers to string
                if ( val == null ) {
                    val = "";

                } else if ( typeof val === "number" ) {
                    val += "";

                } else if ( array.isarray( val ) ) {
                    val = jquery.map( val, function( value ) {
                        return value == null ? "" : value + "";
                    } );
                }

                hooks = jquery.valhooks[ this.type ] || jquery.valhooks[ this.nodename.tolowercase() ];

                // if set returns undefined, fall back to normal setting
                if ( !hooks || !( "set" in hooks ) || hooks.set( this, val, "value" ) === undefined ) {
                    this.value = val;
                }
            } );
        }
    } );

    jquery.extend( {
        valhooks: {
            option: {
                get: function( elem ) {

                    var val = jquery.find.attr( elem, "value" );
                    return val != null ?
                        val :

                        // support: ie <=10 - 11 only
                        // option.text throws exceptions (#14686, #14858)
                        // strip and collapse whitespace
                        // https://html.spec.whatwg.org/#strip-and-collapse-whitespace
                        stripandcollapse( jquery.text( elem ) );
                }
            },
            select: {
                get: function( elem ) {
                    var value, option, i,
                        options = elem.options,
                        index = elem.selectedindex,
                        one = elem.type === "select-one",
                        values = one ? null : [],
                        max = one ? index + 1 : options.length;

                    if ( index < 0 ) {
                        i = max;

                    } else {
                        i = one ? index : 0;
                    }

                    // loop through all the selected options
                    for ( ; i < max; i++ ) {
                        option = options[ i ];

                        // support: ie <=9 only
                        // ie8-9 doesn't update selected after form reset (#2551)
                        if ( ( option.selected || i === index ) &&

                            // don't return options that are disabled or in a disabled optgroup
                            !option.disabled &&
                            ( !option.parentnode.disabled ||
                                !nodename( option.parentnode, "optgroup" ) ) ) {

                            // get the specific value for the option
                            value = jquery( option ).val();

                            // we don't need an array for one selects
                            if ( one ) {
                                return value;
                            }

                            // multi-selects return an array
                            values.push( value );
                        }
                    }

                    return values;
                },

                set: function( elem, value ) {
                    var optionset, option,
                        options = elem.options,
                        values = jquery.makearray( value ),
                        i = options.length;

                    while ( i-- ) {
                        option = options[ i ];

                        /* eslint-disable no-cond-assign */

                        if ( option.selected =
                            jquery.inarray( jquery.valhooks.option.get( option ), values ) > -1
                        ) {
                            optionset = true;
                        }

                        /* eslint-enable no-cond-assign */
                    }

                    // force browsers to behave consistently when non-matching value is set
                    if ( !optionset ) {
                        elem.selectedindex = -1;
                    }
                    return values;
                }
            }
        }
    } );

// radios and checkboxes getter/setter
    jquery.each( [ "radio", "checkbox" ], function() {
        jquery.valhooks[ this ] = {
            set: function( elem, value ) {
                if ( array.isarray( value ) ) {
                    return ( elem.checked = jquery.inarray( jquery( elem ).val(), value ) > -1 );
                }
            }
        };
        if ( !support.checkon ) {
            jquery.valhooks[ this ].get = function( elem ) {
                return elem.getattribute( "value" ) === null ? "on" : elem.value;
            };
        }
    } );




// return jquery for attributes-only inclusion


    support.focusin = "onfocusin" in window;


    var rfocusmorph = /^(?:focusinfocus|focusoutblur)$/,
        stoppropagationcallback = function( e ) {
            e.stoppropagation();
        };

    jquery.extend( jquery.event, {

        trigger: function( event, data, elem, onlyhandlers ) {

            var i, cur, tmp, bubbletype, ontype, handle, special, lastelement,
                eventpath = [ elem || document ],
                type = hasown.call( event, "type" ) ? event.type : event,
                namespaces = hasown.call( event, "namespace" ) ? event.namespace.split( "." ) : [];

            cur = lastelement = tmp = elem = elem || document;

            // don't do events on text and comment nodes
            if ( elem.nodetype === 3 || elem.nodetype === 8 ) {
                return;
            }

            // focus/blur morphs to focusin/out; ensure we're not firing them right now
            if ( rfocusmorph.test( type + jquery.event.triggered ) ) {
                return;
            }

            if ( type.indexof( "." ) > -1 ) {

                // namespaced trigger; create a regexp to match event type in handle()
                namespaces = type.split( "." );
                type = namespaces.shift();
                namespaces.sort();
            }
            ontype = type.indexof( ":" ) < 0 && "on" + type;

            // caller can pass in a jquery.event object, object, or just an event type string
            event = event[ jquery.expando ] ?
                event :
                new jquery.event( type, typeof event === "object" && event );

            // trigger bitmask: & 1 for native handlers; & 2 for jquery (always true)
            event.istrigger = onlyhandlers ? 2 : 3;
            event.namespace = namespaces.join( "." );
            event.rnamespace = event.namespace ?
                new regexp( "(^|\\.)" + namespaces.join( "\\.(?:.*\\.|)" ) + "(\\.|$)" ) :
                null;

            // clean up the event in case it is being reused
            event.result = undefined;
            if ( !event.target ) {
                event.target = elem;
            }

            // clone any incoming data and prepend the event, creating the handler arg list
            data = data == null ?
                [ event ] :
                jquery.makearray( data, [ event ] );

            // allow special events to draw outside the lines
            special = jquery.event.special[ type ] || {};
            if ( !onlyhandlers && special.trigger && special.trigger.apply( elem, data ) === false ) {
                return;
            }

            // determine event propagation path in advance, per w3c events spec (#9951)
            // bubble up to document, then to window; watch for a global ownerdocument var (#9724)
            if ( !onlyhandlers && !special.nobubble && !iswindow( elem ) ) {

                bubbletype = special.delegatetype || type;
                if ( !rfocusmorph.test( bubbletype + type ) ) {
                    cur = cur.parentnode;
                }
                for ( ; cur; cur = cur.parentnode ) {
                    eventpath.push( cur );
                    tmp = cur;
                }

                // only add window if we got to document (e.g., not plain obj or detached dom)
                if ( tmp === ( elem.ownerdocument || document ) ) {
                    eventpath.push( tmp.defaultview || tmp.parentwindow || window );
                }
            }

            // fire handlers on the event path
            i = 0;
            while ( ( cur = eventpath[ i++ ] ) && !event.ispropagationstopped() ) {
                lastelement = cur;
                event.type = i > 1 ?
                    bubbletype :
                    special.bindtype || type;

                // jquery handler
                handle = (
                        datapriv.get( cur, "events" ) || object.create( null )
                    )[ event.type ] &&
                    datapriv.get( cur, "handle" );
                if ( handle ) {
                    handle.apply( cur, data );
                }

                // native handler
                handle = ontype && cur[ ontype ];
                if ( handle && handle.apply && acceptdata( cur ) ) {
                    event.result = handle.apply( cur, data );
                    if ( event.result === false ) {
                        event.preventdefault();
                    }
                }
            }
            event.type = type;

            // if nobody prevented the default action, do it now
            if ( !onlyhandlers && !event.isdefaultprevented() ) {

                if ( ( !special._default ||
                    special._default.apply( eventpath.pop(), data ) === false ) &&
                    acceptdata( elem ) ) {

                    // call a native dom method on the target with the same name as the event.
                    // don't do default actions on window, that's where global variables be (#6170)
                    if ( ontype && isfunction( elem[ type ] ) && !iswindow( elem ) ) {

                        // don't re-trigger an onfoo event when we call its foo() method
                        tmp = elem[ ontype ];

                        if ( tmp ) {
                            elem[ ontype ] = null;
                        }

                        // prevent re-triggering of the same event, since we already bubbled it above
                        jquery.event.triggered = type;

                        if ( event.ispropagationstopped() ) {
                            lastelement.addeventlistener( type, stoppropagationcallback );
                        }

                        elem[ type ]();

                        if ( event.ispropagationstopped() ) {
                            lastelement.removeeventlistener( type, stoppropagationcallback );
                        }

                        jquery.event.triggered = undefined;

                        if ( tmp ) {
                            elem[ ontype ] = tmp;
                        }
                    }
                }
            }

            return event.result;
        },

        // piggyback on a donor event to simulate a different one
        // used only for `focus(in | out)` events
        simulate: function( type, elem, event ) {
            var e = jquery.extend(
                new jquery.event(),
                event,
                {
                    type: type,
                    issimulated: true
                }
            );

            jquery.event.trigger( e, null, elem );
        }

    } );

    jquery.fn.extend( {

        trigger: function( type, data ) {
            return this.each( function() {
                jquery.event.trigger( type, data, this );
            } );
        },
        triggerhandler: function( type, data ) {
            var elem = this[ 0 ];
            if ( elem ) {
                return jquery.event.trigger( type, data, elem, true );
            }
        }
    } );


// support: firefox <=44
// firefox doesn't have focus(in | out) events
// related ticket - https://bugzilla.mozilla.org/show_bug.cgi?id=687787
//
// support: chrome <=48 - 49, safari <=9.0 - 9.1
// focus(in | out) events fire after focus & blur events,
// which is spec violation - http://www.w3.org/tr/dom-level-3-events/#events-focusevent-event-order
// related ticket - https://bugs.chromium.org/p/chromium/issues/detail?id=449857
    if ( !support.focusin ) {
        jquery.each( { focus: "focusin", blur: "focusout" }, function( orig, fix ) {

            // attach a single capturing handler on the document while someone wants focusin/focusout
            var handler = function( event ) {
                jquery.event.simulate( fix, event.target, jquery.event.fix( event ) );
            };

            jquery.event.special[ fix ] = {
                setup: function() {

                    // handle: regular nodes (via `this.ownerdocument`), window
                    // (via `this.document`) & document (via `this`).
                    var doc = this.ownerdocument || this.document || this,
                        attaches = datapriv.access( doc, fix );

                    if ( !attaches ) {
                        doc.addeventlistener( orig, handler, true );
                    }
                    datapriv.access( doc, fix, ( attaches || 0 ) + 1 );
                },
                teardown: function() {
                    var doc = this.ownerdocument || this.document || this,
                        attaches = datapriv.access( doc, fix ) - 1;

                    if ( !attaches ) {
                        doc.removeeventlistener( orig, handler, true );
                        datapriv.remove( doc, fix );

                    } else {
                        datapriv.access( doc, fix, attaches );
                    }
                }
            };
        } );
    }
    var location = window.location;

    var nonce = { guid: date.now() };

    var rquery = ( /\?/ );



// cross-browser xml parsing
    jquery.parsexml = function( data ) {
        var xml;
        if ( !data || typeof data !== "string" ) {
            return null;
        }

        // support: ie 9 - 11 only
        // ie throws on parsefromstring with invalid input.
        try {
            xml = ( new window.domparser() ).parsefromstring( data, "text/xml" );
        } catch ( e ) {
            xml = undefined;
        }

        if ( !xml || xml.getelementsbytagname( "parsererror" ).length ) {
            jquery.error( "invalid xml: " + data );
        }
        return xml;
    };


    var
        rbracket = /\[\]$/,
        rcrlf = /\r?\n/g,
        rsubmittertypes = /^(?:submit|button|image|reset|file)$/i,
        rsubmittable = /^(?:input|select|textarea|keygen)/i;

    function buildparams( prefix, obj, traditional, add ) {
        var name;

        if ( array.isarray( obj ) ) {

            // serialize array item.
            jquery.each( obj, function( i, v ) {
                if ( traditional || rbracket.test( prefix ) ) {

                    // treat each array item as a scalar.
                    add( prefix, v );

                } else {

                    // item is non-scalar (array or object), encode its numeric index.
                    buildparams(
                        prefix + "[" + ( typeof v === "object" && v != null ? i : "" ) + "]",
                        v,
                        traditional,
                        add
                    );
                }
            } );

        } else if ( !traditional && totype( obj ) === "object" ) {

            // serialize object item.
            for ( name in obj ) {
                buildparams( prefix + "[" + name + "]", obj[ name ], traditional, add );
            }

        } else {

            // serialize scalar item.
            add( prefix, obj );
        }
    }

// serialize an array of form elements or a set of
// key/values into a query string
    jquery.param = function( a, traditional ) {
        var prefix,
            s = [],
            add = function( key, valueorfunction ) {

                // if value is a function, invoke it and use its return value
                var value = isfunction( valueorfunction ) ?
                    valueorfunction() :
                    valueorfunction;

                s[ s.length ] = encodeuricomponent( key ) + "=" +
                    encodeuricomponent( value == null ? "" : value );
            };

        if ( a == null ) {
            return "";
        }

        // if an array was passed in, assume that it is an array of form elements.
        if ( array.isarray( a ) || ( a.jquery && !jquery.isplainobject( a ) ) ) {

            // serialize the form elements
            jquery.each( a, function() {
                add( this.name, this.value );
            } );

        } else {

            // if traditional, encode the "old" way (the way 1.3.2 or older
            // did it), otherwise encode params recursively.
            for ( prefix in a ) {
                buildparams( prefix, a[ prefix ], traditional, add );
            }
        }

        // return the resulting serialization
        return s.join( "&" );
    };

    jquery.fn.extend( {
        serialize: function() {
            return jquery.param( this.serializearray() );
        },
        serializearray: function() {
            return this.map( function() {

                // can add prophook for "elements" to filter or add form elements
                var elements = jquery.prop( this, "elements" );
                return elements ? jquery.makearray( elements ) : this;
            } )
                .filter( function() {
                    var type = this.type;

                    // use .is( ":disabled" ) so that fieldset[disabled] works
                    return this.name && !jquery( this ).is( ":disabled" ) &&
                        rsubmittable.test( this.nodename ) && !rsubmittertypes.test( type ) &&
                        ( this.checked || !rcheckabletype.test( type ) );
                } )
                .map( function( _i, elem ) {
                    var val = jquery( this ).val();

                    if ( val == null ) {
                        return null;
                    }

                    if ( array.isarray( val ) ) {
                        return jquery.map( val, function( val ) {
                            return { name: elem.name, value: val.replace( rcrlf, "\r\n" ) };
                        } );
                    }

                    return { name: elem.name, value: val.replace( rcrlf, "\r\n" ) };
                } ).get();
        }
    } );


    var
        r20 = /%20/g,
        rhash = /#.*$/,
        ranticache = /([?&])_=[^&]*/,
        rheaders = /^(.*?):[ \t]*([^\r\n]*)$/mg,

        // #7653, #8125, #8152: local protocol detection
        rlocalprotocol = /^(?:about|app|app-storage|.+-extension|file|res|widget):$/,
        rnocontent = /^(?:get|head)$/,
        rprotocol = /^\/\//,

        /* prefilters
	 * 1) they are useful to introduce custom datatypes (see ajax/jsonp.js for an example)
	 * 2) these are called:
	 *    - before asking for a transport
	 *    - after param serialization (s.data is a string if s.processdata is true)
	 * 3) key is the datatype
	 * 4) the catchall symbol "*" can be used
	 * 5) execution will start with transport datatype and then continue down to "*" if needed
	 */
        prefilters = {},

        /* transports bindings
	 * 1) key is the datatype
	 * 2) the catchall symbol "*" can be used
	 * 3) selection will start with transport datatype and then go to "*" if needed
	 */
        transports = {},

        // avoid comment-prolog char sequence (#10098); must appease lint and evade compression
        alltypes = "*/".concat( "*" ),

        // anchor tag for parsing the document origin
        originanchor = document.createelement( "a" );
    originanchor.href = location.href;

// base "constructor" for jquery.ajaxprefilter and jquery.ajaxtransport
    function addtoprefiltersortransports( structure ) {

        // datatypeexpression is optional and defaults to "*"
        return function( datatypeexpression, func ) {

            if ( typeof datatypeexpression !== "string" ) {
                func = datatypeexpression;
                datatypeexpression = "*";
            }

            var datatype,
                i = 0,
                datatypes = datatypeexpression.tolowercase().match( rnothtmlwhite ) || [];

            if ( isfunction( func ) ) {

                // for each datatype in the datatypeexpression
                while ( ( datatype = datatypes[ i++ ] ) ) {

                    // prepend if requested
                    if ( datatype[ 0 ] === "+" ) {
                        datatype = datatype.slice( 1 ) || "*";
                        ( structure[ datatype ] = structure[ datatype ] || [] ).unshift( func );

                        // otherwise append
                    } else {
                        ( structure[ datatype ] = structure[ datatype ] || [] ).push( func );
                    }
                }
            }
        };
    }

// base inspection function for prefilters and transports
    function inspectprefiltersortransports( structure, options, originaloptions, jqxhr ) {

        var inspected = {},
            seekingtransport = ( structure === transports );

        function inspect( datatype ) {
            var selected;
            inspected[ datatype ] = true;
            jquery.each( structure[ datatype ] || [], function( _, prefilterorfactory ) {
                var datatypeortransport = prefilterorfactory( options, originaloptions, jqxhr );
                if ( typeof datatypeortransport === "string" &&
                    !seekingtransport && !inspected[ datatypeortransport ] ) {

                    options.datatypes.unshift( datatypeortransport );
                    inspect( datatypeortransport );
                    return false;
                } else if ( seekingtransport ) {
                    return !( selected = datatypeortransport );
                }
            } );
            return selected;
        }

        return inspect( options.datatypes[ 0 ] ) || !inspected[ "*" ] && inspect( "*" );
    }

// a special extend for ajax options
// that takes "flat" options (not to be deep extended)
// fixes #9887
    function ajaxextend( target, src ) {
        var key, deep,
            flatoptions = jquery.ajaxsettings.flatoptions || {};

        for ( key in src ) {
            if ( src[ key ] !== undefined ) {
                ( flatoptions[ key ] ? target : ( deep || ( deep = {} ) ) )[ key ] = src[ key ];
            }
        }
        if ( deep ) {
            jquery.extend( true, target, deep );
        }

        return target;
    }

    /* handles responses to an ajax request:
 * - finds the right datatype (mediates between content-type and expected datatype)
 * - returns the corresponding response
 */
    function ajaxhandleresponses( s, jqxhr, responses ) {

        var ct, type, finaldatatype, firstdatatype,
            contents = s.contents,
            datatypes = s.datatypes;

        // remove auto datatype and get content-type in the process
        while ( datatypes[ 0 ] === "*" ) {
            datatypes.shift();
            if ( ct === undefined ) {
                ct = s.mimetype || jqxhr.getresponseheader( "content-type" );
            }
        }

        // check if we're dealing with a known content-type
        if ( ct ) {
            for ( type in contents ) {
                if ( contents[ type ] && contents[ type ].test( ct ) ) {
                    datatypes.unshift( type );
                    break;
                }
            }
        }

        // check to see if we have a response for the expected datatype
        if ( datatypes[ 0 ] in responses ) {
            finaldatatype = datatypes[ 0 ];
        } else {

            // try convertible datatypes
            for ( type in responses ) {
                if ( !datatypes[ 0 ] || s.converters[ type + " " + datatypes[ 0 ] ] ) {
                    finaldatatype = type;
                    break;
                }
                if ( !firstdatatype ) {
                    firstdatatype = type;
                }
            }

            // or just use first one
            finaldatatype = finaldatatype || firstdatatype;
        }

        // if we found a datatype
        // we add the datatype to the list if needed
        // and return the corresponding response
        if ( finaldatatype ) {
            if ( finaldatatype !== datatypes[ 0 ] ) {
                datatypes.unshift( finaldatatype );
            }
            return responses[ finaldatatype ];
        }
    }

    /* chain conversions given the request and the original response
 * also sets the responsexxx fields on the jqxhr instance
 */
    function ajaxconvert( s, response, jqxhr, issuccess ) {
        var conv2, current, conv, tmp, prev,
            converters = {},

            // work with a copy of datatypes in case we need to modify it for conversion
            datatypes = s.datatypes.slice();

        // create converters map with lowercased keys
        if ( datatypes[ 1 ] ) {
            for ( conv in s.converters ) {
                converters[ conv.tolowercase() ] = s.converters[ conv ];
            }
        }

        current = datatypes.shift();

        // convert to each sequential datatype
        while ( current ) {

            if ( s.responsefields[ current ] ) {
                jqxhr[ s.responsefields[ current ] ] = response;
            }

            // apply the datafilter if provided
            if ( !prev && issuccess && s.datafilter ) {
                response = s.datafilter( response, s.datatype );
            }

            prev = current;
            current = datatypes.shift();

            if ( current ) {

                // there's only work to do if current datatype is non-auto
                if ( current === "*" ) {

                    current = prev;

                    // convert response if prev datatype is non-auto and differs from current
                } else if ( prev !== "*" && prev !== current ) {

                    // seek a direct converter
                    conv = converters[ prev + " " + current ] || converters[ "* " + current ];

                    // if none found, seek a pair
                    if ( !conv ) {
                        for ( conv2 in converters ) {

                            // if conv2 outputs current
                            tmp = conv2.split( " " );
                            if ( tmp[ 1 ] === current ) {

                                // if prev can be converted to accepted input
                                conv = converters[ prev + " " + tmp[ 0 ] ] ||
                                    converters[ "* " + tmp[ 0 ] ];
                                if ( conv ) {

                                    // condense equivalence converters
                                    if ( conv === true ) {
                                        conv = converters[ conv2 ];

                                        // otherwise, insert the intermediate datatype
                                    } else if ( converters[ conv2 ] !== true ) {
                                        current = tmp[ 0 ];
                                        datatypes.unshift( tmp[ 1 ] );
                                    }
                                    break;
                                }
                            }
                        }
                    }

                    // apply converter (if not an equivalence)
                    if ( conv !== true ) {

                        // unless errors are allowed to bubble, catch and return them
                        if ( conv && s.throws ) {
                            response = conv( response );
                        } else {
                            try {
                                response = conv( response );
                            } catch ( e ) {
                                return {
                                    state: "parsererror",
                                    error: conv ? e : "no conversion from " + prev + " to " + current
                                };
                            }
                        }
                    }
                }
            }
        }

        return { state: "success", data: response };
    }

    jquery.extend( {

        // counter for holding the number of active queries
        active: 0,

        // last-modified header cache for next request
        lastmodified: {},
        etag: {},

        ajaxsettings: {
            url: location.href,
            type: "get",
            islocal: rlocalprotocol.test( location.protocol ),
            global: true,
            processdata: true,
            async: true,
            contenttype: "application/x-www-form-urlencoded; charset=utf-8",

            /*
		timeout: 0,
		data: null,
		datatype: null,
		username: null,
		password: null,
		cache: null,
		throws: false,
		traditional: false,
		headers: {},
		*/

            accepts: {
                "*": alltypes,
                text: "text/plain",
                html: "text/html",
                xml: "application/xml, text/xml",
                json: "application/json, text/javascript"
            },

            contents: {
                xml: /\bxml\b/,
                html: /\bhtml/,
                json: /\bjson\b/
            },

            responsefields: {
                xml: "responsexml",
                text: "responsetext",
                json: "responsejson"
            },

            // data converters
            // keys separate source (or catchall "*") and destination types with a single space
            converters: {

                // convert anything to text
                "* text": string,

                // text to html (true = no transformation)
                "text html": true,

                // evaluate text as a json expression
                "text json": json.parse,

                // parse text as xml
                "text xml": jquery.parsexml
            },

            // for options that shouldn't be deep extended:
            // you can add your own custom options here if
            // and when you create one that shouldn't be
            // deep extended (see ajaxextend)
            flatoptions: {
                url: true,
                context: true
            }
        },

        // creates a full fledged settings object into target
        // with both ajaxsettings and settings fields.
        // if target is omitted, writes into ajaxsettings.
        ajaxsetup: function( target, settings ) {
            return settings ?

                // building a settings object
                ajaxextend( ajaxextend( target, jquery.ajaxsettings ), settings ) :

                // extending ajaxsettings
                ajaxextend( jquery.ajaxsettings, target );
        },

        ajaxprefilter: addtoprefiltersortransports( prefilters ),
        ajaxtransport: addtoprefiltersortransports( transports ),

        // main method
        ajax: function( url, options ) {

            // if url is an object, simulate pre-1.5 signature
            if ( typeof url === "object" ) {
                options = url;
                url = undefined;
            }

            // force options to be an object
            options = options || {};

            var transport,

                // url without anti-cache param
                cacheurl,

                // response headers
                responseheadersstring,
                responseheaders,

                // timeout handle
                timeouttimer,

                // url cleanup var
                urlanchor,

                // request state (becomes false upon send and true upon completion)
                completed,

                // to know if global events are to be dispatched
                fireglobals,

                // loop variable
                i,

                // uncached part of the url
                uncached,

                // create the final options object
                s = jquery.ajaxsetup( {}, options ),

                // callbacks context
                callbackcontext = s.context || s,

                // context for global events is callbackcontext if it is a dom node or jquery collection
                globaleventcontext = s.context &&
                ( callbackcontext.nodetype || callbackcontext.jquery ) ?
                    jquery( callbackcontext ) :
                    jquery.event,

                // deferreds
                deferred = jquery.deferred(),
                completedeferred = jquery.callbacks( "once memory" ),

                // status-dependent callbacks
                statuscode = s.statuscode || {},

                // headers (they are sent all at once)
                requestheaders = {},
                requestheadersnames = {},

                // default abort message
                strabort = "canceled",

                // fake xhr
                jqxhr = {
                    readystate: 0,

                    // builds headers hashtable if needed
                    getresponseheader: function( key ) {
                        var match;
                        if ( completed ) {
                            if ( !responseheaders ) {
                                responseheaders = {};
                                while ( ( match = rheaders.exec( responseheadersstring ) ) ) {
                                    responseheaders[ match[ 1 ].tolowercase() + " " ] =
                                        ( responseheaders[ match[ 1 ].tolowercase() + " " ] || [] )
                                            .concat( match[ 2 ] );
                                }
                            }
                            match = responseheaders[ key.tolowercase() + " " ];
                        }
                        return match == null ? null : match.join( ", " );
                    },

                    // raw string
                    getallresponseheaders: function() {
                        return completed ? responseheadersstring : null;
                    },

                    // caches the header
                    setrequestheader: function( name, value ) {
                        if ( completed == null ) {
                            name = requestheadersnames[ name.tolowercase() ] =
                                requestheadersnames[ name.tolowercase() ] || name;
                            requestheaders[ name ] = value;
                        }
                        return this;
                    },

                    // overrides response content-type header
                    overridemimetype: function( type ) {
                        if ( completed == null ) {
                            s.mimetype = type;
                        }
                        return this;
                    },

                    // status-dependent callbacks
                    statuscode: function( map ) {
                        var code;
                        if ( map ) {
                            if ( completed ) {

                                // execute the appropriate callbacks
                                jqxhr.always( map[ jqxhr.status ] );
                            } else {

                                // lazy-add the new callbacks in a way that preserves old ones
                                for ( code in map ) {
                                    statuscode[ code ] = [ statuscode[ code ], map[ code ] ];
                                }
                            }
                        }
                        return this;
                    },

                    // cancel the request
                    abort: function( statustext ) {
                        var finaltext = statustext || strabort;
                        if ( transport ) {
                            transport.abort( finaltext );
                        }
                        done( 0, finaltext );
                        return this;
                    }
                };

            // attach deferreds
            deferred.promise( jqxhr );

            // add protocol if not provided (prefilters might expect it)
            // handle falsy url in the settings object (#10093: consistency with old signature)
            // we also use the url parameter if available
            s.url = ( ( url || s.url || location.href ) + "" )
                .replace( rprotocol, location.protocol + "//" );

            // alias method option to type as per ticket #12004
            s.type = options.method || options.type || s.method || s.type;

            // extract datatypes list
            s.datatypes = ( s.datatype || "*" ).tolowercase().match( rnothtmlwhite ) || [ "" ];

            // a cross-domain request is in order when the origin doesn't match the current origin.
            if ( s.crossdomain == null ) {
                urlanchor = document.createelement( "a" );

                // support: ie <=8 - 11, edge 12 - 15
                // ie throws exception on accessing the href property if url is malformed,
                // e.g. http://example.com:80x/
                try {
                    urlanchor.href = s.url;

                    // support: ie <=8 - 11 only
                    // anchor's host property isn't correctly set when s.url is relative
                    urlanchor.href = urlanchor.href;
                    s.crossdomain = originanchor.protocol + "//" + originanchor.host !==
                        urlanchor.protocol + "//" + urlanchor.host;
                } catch ( e ) {

                    // if there is an error parsing the url, assume it is crossdomain,
                    // it can be rejected by the transport if it is invalid
                    s.crossdomain = true;
                }
            }

            // convert data if not already a string
            if ( s.data && s.processdata && typeof s.data !== "string" ) {
                s.data = jquery.param( s.data, s.traditional );
            }

            // apply prefilters
            inspectprefiltersortransports( prefilters, s, options, jqxhr );

            // if request was aborted inside a prefilter, stop there
            if ( completed ) {
                return jqxhr;
            }

            // we can fire global events as of now if asked to
            // don't fire events if jquery.event is undefined in an amd-usage scenario (#15118)
            fireglobals = jquery.event && s.global;

            // watch for a new set of requests
            if ( fireglobals && jquery.active++ === 0 ) {
                jquery.event.trigger( "ajaxstart" );
            }

            // uppercase the type
            s.type = s.type.touppercase();

            // determine if request has content
            s.hascontent = !rnocontent.test( s.type );

            // save the url in case we're toying with the if-modified-since
            // and/or if-none-match header later on
            // remove hash to simplify url manipulation
            cacheurl = s.url.replace( rhash, "" );

            // more options handling for requests with no content
            if ( !s.hascontent ) {

                // remember the hash so we can put it back
                uncached = s.url.slice( cacheurl.length );

                // if data is available and should be processed, append data to url
                if ( s.data && ( s.processdata || typeof s.data === "string" ) ) {
                    cacheurl += ( rquery.test( cacheurl ) ? "&" : "?" ) + s.data;

                    // #9682: remove data so that it's not used in an eventual retry
                    delete s.data;
                }

                // add or update anti-cache param if needed
                if ( s.cache === false ) {
                    cacheurl = cacheurl.replace( ranticache, "$1" );
                    uncached = ( rquery.test( cacheurl ) ? "&" : "?" ) + "_=" + ( nonce.guid++ ) +
                        uncached;
                }

                // put hash and anti-cache on the url that will be requested (gh-1732)
                s.url = cacheurl + uncached;

                // change '%20' to '+' if this is encoded form body content (gh-2658)
            } else if ( s.data && s.processdata &&
                ( s.contenttype || "" ).indexof( "application/x-www-form-urlencoded" ) === 0 ) {
                s.data = s.data.replace( r20, "+" );
            }

            // set the if-modified-since and/or if-none-match header, if in ifmodified mode.
            if ( s.ifmodified ) {
                if ( jquery.lastmodified[ cacheurl ] ) {
                    jqxhr.setrequestheader( "if-modified-since", jquery.lastmodified[ cacheurl ] );
                }
                if ( jquery.etag[ cacheurl ] ) {
                    jqxhr.setrequestheader( "if-none-match", jquery.etag[ cacheurl ] );
                }
            }

            // set the correct header, if data is being sent
            if ( s.data && s.hascontent && s.contenttype !== false || options.contenttype ) {
                jqxhr.setrequestheader( "content-type", s.contenttype );
            }

            // set the accepts header for the server, depending on the datatype
            jqxhr.setrequestheader(
                "accept",
                s.datatypes[ 0 ] && s.accepts[ s.datatypes[ 0 ] ] ?
                    s.accepts[ s.datatypes[ 0 ] ] +
                    ( s.datatypes[ 0 ] !== "*" ? ", " + alltypes + "; q=0.01" : "" ) :
                    s.accepts[ "*" ]
            );

            // check for headers option
            for ( i in s.headers ) {
                jqxhr.setrequestheader( i, s.headers[ i ] );
            }

            // allow custom headers/mimetypes and early abort
            if ( s.beforesend &&
                ( s.beforesend.call( callbackcontext, jqxhr, s ) === false || completed ) ) {

                // abort if not done already and return
                return jqxhr.abort();
            }

            // aborting is no longer a cancellation
            strabort = "abort";

            // install callbacks on deferreds
            completedeferred.add( s.complete );
            jqxhr.done( s.success );
            jqxhr.fail( s.error );

            // get transport
            transport = inspectprefiltersortransports( transports, s, options, jqxhr );

            // if no transport, we auto-abort
            if ( !transport ) {
                done( -1, "no transport" );
            } else {
                jqxhr.readystate = 1;

                // send global event
                if ( fireglobals ) {
                    globaleventcontext.trigger( "ajaxsend", [ jqxhr, s ] );
                }

                // if request was aborted inside ajaxsend, stop there
                if ( completed ) {
                    return jqxhr;
                }

                // timeout
                if ( s.async && s.timeout > 0 ) {
                    timeouttimer = window.settimeout( function() {
                        jqxhr.abort( "timeout" );
                    }, s.timeout );
                }

                try {
                    completed = false;
                    transport.send( requestheaders, done );
                } catch ( e ) {

                    // rethrow post-completion exceptions
                    if ( completed ) {
                        throw e;
                    }

                    // propagate others as results
                    done( -1, e );
                }
            }

            // callback for when everything is done
            function done( status, nativestatustext, responses, headers ) {
                var issuccess, success, error, response, modified,
                    statustext = nativestatustext;

                // ignore repeat invocations
                if ( completed ) {
                    return;
                }

                completed = true;

                // clear timeout if it exists
                if ( timeouttimer ) {
                    window.cleartimeout( timeouttimer );
                }

                // dereference transport for early garbage collection
                // (no matter how long the jqxhr object will be used)
                transport = undefined;

                // cache response headers
                responseheadersstring = headers || "";

                // set readystate
                jqxhr.readystate = status > 0 ? 4 : 0;

                // determine if successful
                issuccess = status >= 200 && status < 300 || status === 304;

                // get response data
                if ( responses ) {
                    response = ajaxhandleresponses( s, jqxhr, responses );
                }

                // use a noop converter for missing script
                if ( !issuccess && jquery.inarray( "script", s.datatypes ) > -1 ) {
                    s.converters[ "text script" ] = function() {};
                }

                // convert no matter what (that way responsexxx fields are always set)
                response = ajaxconvert( s, response, jqxhr, issuccess );

                // if successful, handle type chaining
                if ( issuccess ) {

                    // set the if-modified-since and/or if-none-match header, if in ifmodified mode.
                    if ( s.ifmodified ) {
                        modified = jqxhr.getresponseheader( "last-modified" );
                        if ( modified ) {
                            jquery.lastmodified[ cacheurl ] = modified;
                        }
                        modified = jqxhr.getresponseheader( "etag" );
                        if ( modified ) {
                            jquery.etag[ cacheurl ] = modified;
                        }
                    }

                    // if no content
                    if ( status === 204 || s.type === "head" ) {
                        statustext = "nocontent";

                        // if not modified
                    } else if ( status === 304 ) {
                        statustext = "notmodified";

                        // if we have data, let's convert it
                    } else {
                        statustext = response.state;
                        success = response.data;
                        error = response.error;
                        issuccess = !error;
                    }
                } else {

                    // extract error from statustext and normalize for non-aborts
                    error = statustext;
                    if ( status || !statustext ) {
                        statustext = "error";
                        if ( status < 0 ) {
                            status = 0;
                        }
                    }
                }

                // set data for the fake xhr object
                jqxhr.status = status;
                jqxhr.statustext = ( nativestatustext || statustext ) + "";

                // success/error
                if ( issuccess ) {
                    deferred.resolvewith( callbackcontext, [ success, statustext, jqxhr ] );
                } else {
                    deferred.rejectwith( callbackcontext, [ jqxhr, statustext, error ] );
                }

                // status-dependent callbacks
                jqxhr.statuscode( statuscode );
                statuscode = undefined;

                if ( fireglobals ) {
                    globaleventcontext.trigger( issuccess ? "ajaxsuccess" : "ajaxerror",
                        [ jqxhr, s, issuccess ? success : error ] );
                }

                // complete
                completedeferred.firewith( callbackcontext, [ jqxhr, statustext ] );

                if ( fireglobals ) {
                    globaleventcontext.trigger( "ajaxcomplete", [ jqxhr, s ] );

                    // handle the global ajax counter
                    if ( !( --jquery.active ) ) {
                        jquery.event.trigger( "ajaxstop" );
                    }
                }
            }

            return jqxhr;
        },

        getjson: function( url, data, callback ) {
            return jquery.get( url, data, callback, "json" );
        },

        getscript: function( url, callback ) {
            return jquery.get( url, undefined, callback, "script" );
        }
    } );

    jquery.each( [ "get", "post" ], function( _i, method ) {
        jquery[ method ] = function( url, data, callback, type ) {

            // shift arguments if data argument was omitted
            if ( isfunction( data ) ) {
                type = type || callback;
                callback = data;
                data = undefined;
            }

            // the url can be an options object (which then must have .url)
            return jquery.ajax( jquery.extend( {
                url: url,
                type: method,
                datatype: type,
                data: data,
                success: callback
            }, jquery.isplainobject( url ) && url ) );
        };
    } );

    jquery.ajaxprefilter( function( s ) {
        var i;
        for ( i in s.headers ) {
            if ( i.tolowercase() === "content-type" ) {
                s.contenttype = s.headers[ i ] || "";
            }
        }
    } );


    jquery._evalurl = function( url, options, doc ) {
        return jquery.ajax( {
            url: url,

            // make this explicit, since user can override this through ajaxsetup (#11264)
            type: "get",
            datatype: "script",
            cache: true,
            async: false,
            global: false,

            // only evaluate the response if it is successful (gh-4126)
            // datafilter is not invoked for failure responses, so using it instead
            // of the default converter is kludgy but it works.
            converters: {
                "text script": function() {}
            },
            datafilter: function( response ) {
                jquery.globaleval( response, options, doc );
            }
        } );
    };


    jquery.fn.extend( {
        wrapall: function( html ) {
            var wrap;

            if ( this[ 0 ] ) {
                if ( isfunction( html ) ) {
                    html = html.call( this[ 0 ] );
                }

                // the elements to wrap the target around
                wrap = jquery( html, this[ 0 ].ownerdocument ).eq( 0 ).clone( true );

                if ( this[ 0 ].parentnode ) {
                    wrap.insertbefore( this[ 0 ] );
                }

                wrap.map( function() {
                    var elem = this;

                    while ( elem.firstelementchild ) {
                        elem = elem.firstelementchild;
                    }

                    return elem;
                } ).append( this );
            }

            return this;
        },

        wrapinner: function( html ) {
            if ( isfunction( html ) ) {
                return this.each( function( i ) {
                    jquery( this ).wrapinner( html.call( this, i ) );
                } );
            }

            return this.each( function() {
                var self = jquery( this ),
                    contents = self.contents();

                if ( contents.length ) {
                    contents.wrapall( html );

                } else {
                    self.append( html );
                }
            } );
        },

        wrap: function( html ) {
            var htmlisfunction = isfunction( html );

            return this.each( function( i ) {
                jquery( this ).wrapall( htmlisfunction ? html.call( this, i ) : html );
            } );
        },

        unwrap: function( selector ) {
            this.parent( selector ).not( "body" ).each( function() {
                jquery( this ).replacewith( this.childnodes );
            } );
            return this;
        }
    } );


    jquery.expr.pseudos.hidden = function( elem ) {
        return !jquery.expr.pseudos.visible( elem );
    };
    jquery.expr.pseudos.visible = function( elem ) {
        return !!( elem.offsetwidth || elem.offsetheight || elem.getclientrects().length );
    };




    jquery.ajaxsettings.xhr = function() {
        try {
            return new window.xmlhttprequest();
        } catch ( e ) {}
    };

    var xhrsuccessstatus = {

            // file protocol always yields status code 0, assume 200
            0: 200,

            // support: ie <=9 only
            // #1450: sometimes ie returns 1223 when it should be 204
            1223: 204
        },
        xhrsupported = jquery.ajaxsettings.xhr();

    support.cors = !!xhrsupported && ( "withcredentials" in xhrsupported );
    support.ajax = xhrsupported = !!xhrsupported;

    jquery.ajaxtransport( function( options ) {
        var callback, errorcallback;

        // cross domain only allowed if supported through xmlhttprequest
        if ( support.cors || xhrsupported && !options.crossdomain ) {
            return {
                send: function( headers, complete ) {
                    var i,
                        xhr = options.xhr();

                    xhr.open(
                        options.type,
                        options.url,
                        options.async,
                        options.username,
                        options.password
                    );

                    // apply custom fields if provided
                    if ( options.xhrfields ) {
                        for ( i in options.xhrfields ) {
                            xhr[ i ] = options.xhrfields[ i ];
                        }
                    }

                    // override mime type if needed
                    if ( options.mimetype && xhr.overridemimetype ) {
                        xhr.overridemimetype( options.mimetype );
                    }

                    // x-requested-with header
                    // for cross-domain requests, seeing as conditions for a preflight are
                    // akin to a jigsaw puzzle, we simply never set it to be sure.
                    // (it can always be set on a per-request basis or even using ajaxsetup)
                    // for same-domain requests, won't change header if already provided.
                    if ( !options.crossdomain && !headers[ "x-requested-with" ] ) {
                        headers[ "x-requested-with" ] = "xmlhttprequest";
                    }

                    // set headers
                    for ( i in headers ) {
                        xhr.setrequestheader( i, headers[ i ] );
                    }

                    // callback
                    callback = function( type ) {
                        return function() {
                            if ( callback ) {
                                callback = errorcallback = xhr.onload =
                                    xhr.onerror = xhr.onabort = xhr.ontimeout =
                                        xhr.onreadystatechange = null;

                                if ( type === "abort" ) {
                                    xhr.abort();
                                } else if ( type === "error" ) {

                                    // support: ie <=9 only
                                    // on a manual native abort, ie9 throws
                                    // errors on any property access that is not readystate
                                    if ( typeof xhr.status !== "number" ) {
                                        complete( 0, "error" );
                                    } else {
                                        complete(

                                            // file: protocol always yields status 0; see #8605, #14207
                                            xhr.status,
                                            xhr.statustext
                                        );
                                    }
                                } else {
                                    complete(
                                        xhrsuccessstatus[ xhr.status ] || xhr.status,
                                        xhr.statustext,

                                        // support: ie <=9 only
                                        // ie9 has no xhr2 but throws on binary (trac-11426)
                                        // for xhr2 non-text, let the caller handle it (gh-2498)
                                        ( xhr.responsetype || "text" ) !== "text"  ||
                                        typeof xhr.responsetext !== "string" ?
                                            { binary: xhr.response } :
                                            { text: xhr.responsetext },
                                        xhr.getallresponseheaders()
                                    );
                                }
                            }
                        };
                    };

                    // listen to events
                    xhr.onload = callback();
                    errorcallback = xhr.onerror = xhr.ontimeout = callback( "error" );

                    // support: ie 9 only
                    // use onreadystatechange to replace onabort
                    // to handle uncaught aborts
                    if ( xhr.onabort !== undefined ) {
                        xhr.onabort = errorcallback;
                    } else {
                        xhr.onreadystatechange = function() {

                            // check readystate before timeout as it changes
                            if ( xhr.readystate === 4 ) {

                                // allow onerror to be called first,
                                // but that will not handle a native abort
                                // also, save errorcallback to a variable
                                // as xhr.onerror cannot be accessed
                                window.settimeout( function() {
                                    if ( callback ) {
                                        errorcallback();
                                    }
                                } );
                            }
                        };
                    }

                    // create the abort callback
                    callback = callback( "abort" );

                    try {

                        // do send the request (this may raise an exception)
                        xhr.send( options.hascontent && options.data || null );
                    } catch ( e ) {

                        // #14683: only rethrow if this hasn't been notified as an error yet
                        if ( callback ) {
                            throw e;
                        }
                    }
                },

                abort: function() {
                    if ( callback ) {
                        callback();
                    }
                }
            };
        }
    } );




// prevent auto-execution of scripts when no explicit datatype was provided (see gh-2432)
    jquery.ajaxprefilter( function( s ) {
        if ( s.crossdomain ) {
            s.contents.script = false;
        }
    } );

// install script datatype
    jquery.ajaxsetup( {
        accepts: {
            script: "text/javascript, application/javascript, " +
                "application/ecmascript, application/x-ecmascript"
        },
        contents: {
            script: /\b(?:java|ecma)script\b/
        },
        converters: {
            "text script": function( text ) {
                jquery.globaleval( text );
                return text;
            }
        }
    } );

// handle cache's special case and crossdomain
    jquery.ajaxprefilter( "script", function( s ) {
        if ( s.cache === undefined ) {
            s.cache = false;
        }
        if ( s.crossdomain ) {
            s.type = "get";
        }
    } );

// bind script tag hack transport
    jquery.ajaxtransport( "script", function( s ) {

        // this transport only deals with cross domain or forced-by-attrs requests
        if ( s.crossdomain || s.scriptattrs ) {
            var script, callback;
            return {
                send: function( _, complete ) {
                    script = jquery( "<script>" )
                        .attr( s.scriptattrs || {} )
                        .prop( { charset: s.scriptcharset, src: s.url } )
                        .on( "load error", callback = function( evt ) {
                            script.remove();
                            callback = null;
                            if ( evt ) {
                                complete( evt.type === "error" ? 404 : 200, evt.type );
                            }
                        } );

                    // use native dom manipulation to avoid our dommanip ajax trickery
                    document.head.appendchild( script[ 0 ] );
                },
                abort: function() {
                    if ( callback ) {
                        callback();
                    }
                }
            };
        }
    } );




    var oldcallbacks = [],
        rjsonp = /(=)\?(?=&|$)|\?\?/;

// default jsonp settings
    jquery.ajaxsetup( {
        jsonp: "callback",
        jsonpcallback: function() {
            var callback = oldcallbacks.pop() || ( jquery.expando + "_" + ( nonce.guid++ ) );
            this[ callback ] = true;
            return callback;
        }
    } );

// detect, normalize options and install callbacks for jsonp requests
    jquery.ajaxprefilter( "json jsonp", function( s, originalsettings, jqxhr ) {

        var callbackname, overwritten, responsecontainer,
            jsonprop = s.jsonp !== false && ( rjsonp.test( s.url ) ?
                    "url" :
                    typeof s.data === "string" &&
                    ( s.contenttype || "" )
                        .indexof( "application/x-www-form-urlencoded" ) === 0 &&
                    rjsonp.test( s.data ) && "data"
            );

        // handle iff the expected data type is "jsonp" or we have a parameter to set
        if ( jsonprop || s.datatypes[ 0 ] === "jsonp" ) {

            // get callback name, remembering preexisting value associated with it
            callbackname = s.jsonpcallback = isfunction( s.jsonpcallback ) ?
                s.jsonpcallback() :
                s.jsonpcallback;

            // insert callback into url or form data
            if ( jsonprop ) {
                s[ jsonprop ] = s[ jsonprop ].replace( rjsonp, "$1" + callbackname );
            } else if ( s.jsonp !== false ) {
                s.url += ( rquery.test( s.url ) ? "&" : "?" ) + s.jsonp + "=" + callbackname;
            }

            // use data converter to retrieve json after script execution
            s.converters[ "script json" ] = function() {
                if ( !responsecontainer ) {
                    jquery.error( callbackname + " was not called" );
                }
                return responsecontainer[ 0 ];
            };

            // force json datatype
            s.datatypes[ 0 ] = "json";

            // install callback
            overwritten = window[ callbackname ];
            window[ callbackname ] = function() {
                responsecontainer = arguments;
            };

            // clean-up function (fires after converters)
            jqxhr.always( function() {

                // if previous value didn't exist - remove it
                if ( overwritten === undefined ) {
                    jquery( window ).removeprop( callbackname );

                    // otherwise restore preexisting value
                } else {
                    window[ callbackname ] = overwritten;
                }

                // save back as free
                if ( s[ callbackname ] ) {

                    // make sure that re-using the options doesn't screw things around
                    s.jsonpcallback = originalsettings.jsonpcallback;

                    // save the callback name for future use
                    oldcallbacks.push( callbackname );
                }

                // call if it was a function and we have a response
                if ( responsecontainer && isfunction( overwritten ) ) {
                    overwritten( responsecontainer[ 0 ] );
                }

                responsecontainer = overwritten = undefined;
            } );

            // delegate to script
            return "script";
        }
    } );




// support: safari 8 only
// in safari 8 documents created via document.implementation.createhtmldocument
// collapse sibling forms: the second one becomes a child of the first one.
// because of that, this security measure has to be disabled in safari 8.
// https://bugs.webkit.org/show_bug.cgi?id=137337
    support.createhtmldocument = ( function() {
        var body = document.implementation.createhtmldocument( "" ).body;
        body.innerhtml = "<form></form><form></form>";
        return body.childnodes.length === 2;
    } )();


// argument "data" should be string of html
// context (optional): if specified, the fragment will be created in this context,
// defaults to document
// keepscripts (optional): if true, will include scripts passed in the html string
    jquery.parsehtml = function( data, context, keepscripts ) {
        if ( typeof data !== "string" ) {
            return [];
        }
        if ( typeof context === "boolean" ) {
            keepscripts = context;
            context = false;
        }

        var base, parsed, scripts;

        if ( !context ) {

            // stop scripts or inline event handlers from being executed immediately
            // by using document.implementation
            if ( support.createhtmldocument ) {
                context = document.implementation.createhtmldocument( "" );

                // set the base href for the created document
                // so any parsed elements with urls
                // are based on the document's url (gh-2965)
                base = context.createelement( "base" );
                base.href = document.location.href;
                context.head.appendchild( base );
            } else {
                context = document;
            }
        }

        parsed = rsingletag.exec( data );
        scripts = !keepscripts && [];

        // single tag
        if ( parsed ) {
            return [ context.createelement( parsed[ 1 ] ) ];
        }

        parsed = buildfragment( [ data ], context, scripts );

        if ( scripts && scripts.length ) {
            jquery( scripts ).remove();
        }

        return jquery.merge( [], parsed.childnodes );
    };


    /**
     * load a url into a page
     */
    jquery.fn.load = function( url, params, callback ) {
        var selector, type, response,
            self = this,
            off = url.indexof( " " );

        if ( off > -1 ) {
            selector = stripandcollapse( url.slice( off ) );
            url = url.slice( 0, off );
        }

        // if it's a function
        if ( isfunction( params ) ) {

            // we assume that it's the callback
            callback = params;
            params = undefined;

            // otherwise, build a param string
        } else if ( params && typeof params === "object" ) {
            type = "post";
        }

        // if we have elements to modify, make the request
        if ( self.length > 0 ) {
            jquery.ajax( {
                url: url,

                // if "type" variable is undefined, then "get" method will be used.
                // make value of this field explicit since
                // user can override it through ajaxsetup method
                type: type || "get",
                datatype: "html",
                data: params
            } ).done( function( responsetext ) {

                // save response for use in complete callback
                response = arguments;

                self.html( selector ?

                    // if a selector was specified, locate the right elements in a dummy div
                    // exclude scripts to avoid ie 'permission denied' errors
                    jquery( "<div>" ).append( jquery.parsehtml( responsetext ) ).find( selector ) :

                    // otherwise use the full result
                    responsetext );

                // if the request succeeds, this function gets "data", "status", "jqxhr"
                // but they are ignored because response was set above.
                // if it fails, this function gets "jqxhr", "status", "error"
            } ).always( callback && function( jqxhr, status ) {
                self.each( function() {
                    callback.apply( this, response || [ jqxhr.responsetext, status, jqxhr ] );
                } );
            } );
        }

        return this;
    };




    jquery.expr.pseudos.animated = function( elem ) {
        return jquery.grep( jquery.timers, function( fn ) {
            return elem === fn.elem;
        } ).length;
    };




    jquery.offset = {
        setoffset: function( elem, options, i ) {
            var curposition, curleft, curcsstop, curtop, curoffset, curcssleft, calculateposition,
                position = jquery.css( elem, "position" ),
                curelem = jquery( elem ),
                props = {};

            // set position first, in-case top/left are set even on static elem
            if ( position === "static" ) {
                elem.style.position = "relative";
            }

            curoffset = curelem.offset();
            curcsstop = jquery.css( elem, "top" );
            curcssleft = jquery.css( elem, "left" );
            calculateposition = ( position === "absolute" || position === "fixed" ) &&
                ( curcsstop + curcssleft ).indexof( "auto" ) > -1;

            // need to be able to calculate position if either
            // top or left is auto and position is either absolute or fixed
            if ( calculateposition ) {
                curposition = curelem.position();
                curtop = curposition.top;
                curleft = curposition.left;

            } else {
                curtop = parsefloat( curcsstop ) || 0;
                curleft = parsefloat( curcssleft ) || 0;
            }

            if ( isfunction( options ) ) {

                // use jquery.extend here to allow modification of coordinates argument (gh-1848)
                options = options.call( elem, i, jquery.extend( {}, curoffset ) );
            }

            if ( options.top != null ) {
                props.top = ( options.top - curoffset.top ) + curtop;
            }
            if ( options.left != null ) {
                props.left = ( options.left - curoffset.left ) + curleft;
            }

            if ( "using" in options ) {
                options.using.call( elem, props );

            } else {
                if ( typeof props.top === "number" ) {
                    props.top += "px";
                }
                if ( typeof props.left === "number" ) {
                    props.left += "px";
                }
                curelem.css( props );
            }
        }
    };

    jquery.fn.extend( {

        // offset() relates an element's border box to the document origin
        offset: function( options ) {

            // preserve chaining for setter
            if ( arguments.length ) {
                return options === undefined ?
                    this :
                    this.each( function( i ) {
                        jquery.offset.setoffset( this, options, i );
                    } );
            }

            var rect, win,
                elem = this[ 0 ];

            if ( !elem ) {
                return;
            }

            // return zeros for disconnected and hidden (display: none) elements (gh-2310)
            // support: ie <=11 only
            // running getboundingclientrect on a
            // disconnected node in ie throws an error
            if ( !elem.getclientrects().length ) {
                return { top: 0, left: 0 };
            }

            // get document-relative position by adding viewport scroll to viewport-relative gbcr
            rect = elem.getboundingclientrect();
            win = elem.ownerdocument.defaultview;
            return {
                top: rect.top + win.pageyoffset,
                left: rect.left + win.pagexoffset
            };
        },

        // position() relates an element's margin box to its offset parent's padding box
        // this corresponds to the behavior of css absolute positioning
        position: function() {
            if ( !this[ 0 ] ) {
                return;
            }

            var offsetparent, offset, doc,
                elem = this[ 0 ],
                parentoffset = { top: 0, left: 0 };

            // position:fixed elements are offset from the viewport, which itself always has zero offset
            if ( jquery.css( elem, "position" ) === "fixed" ) {

                // assume position:fixed implies availability of getboundingclientrect
                offset = elem.getboundingclientrect();

            } else {
                offset = this.offset();

                // account for the *real* offset parent, which can be the document or its root element
                // when a statically positioned element is identified
                doc = elem.ownerdocument;
                offsetparent = elem.offsetparent || doc.documentelement;
                while ( offsetparent &&
                ( offsetparent === doc.body || offsetparent === doc.documentelement ) &&
                jquery.css( offsetparent, "position" ) === "static" ) {

                    offsetparent = offsetparent.parentnode;
                }
                if ( offsetparent && offsetparent !== elem && offsetparent.nodetype === 1 ) {

                    // incorporate borders into its offset, since they are outside its content origin
                    parentoffset = jquery( offsetparent ).offset();
                    parentoffset.top += jquery.css( offsetparent, "bordertopwidth", true );
                    parentoffset.left += jquery.css( offsetparent, "borderleftwidth", true );
                }
            }

            // subtract parent offsets and element margins
            return {
                top: offset.top - parentoffset.top - jquery.css( elem, "margintop", true ),
                left: offset.left - parentoffset.left - jquery.css( elem, "marginleft", true )
            };
        },

        // this method will return documentelement in the following cases:
        // 1) for the element inside the iframe without offsetparent, this method will return
        //    documentelement of the parent window
        // 2) for the hidden or detached element
        // 3) for body or html element, i.e. in case of the html node - it will return itself
        //
        // but those exceptions were never presented as a real life use-cases
        // and might be considered as more preferable results.
        //
        // this logic, however, is not guaranteed and can change at any point in the future
        offsetparent: function() {
            return this.map( function() {
                var offsetparent = this.offsetparent;

                while ( offsetparent && jquery.css( offsetparent, "position" ) === "static" ) {
                    offsetparent = offsetparent.offsetparent;
                }

                return offsetparent || documentelement;
            } );
        }
    } );

// create scrollleft and scrolltop methods
    jquery.each( { scrollleft: "pagexoffset", scrolltop: "pageyoffset" }, function( method, prop ) {
        var top = "pageyoffset" === prop;

        jquery.fn[ method ] = function( val ) {
            return access( this, function( elem, method, val ) {

                // coalesce documents and windows
                var win;
                if ( iswindow( elem ) ) {
                    win = elem;
                } else if ( elem.nodetype === 9 ) {
                    win = elem.defaultview;
                }

                if ( val === undefined ) {
                    return win ? win[ prop ] : elem[ method ];
                }

                if ( win ) {
                    win.scrollto(
                        !top ? val : win.pagexoffset,
                        top ? val : win.pageyoffset
                    );

                } else {
                    elem[ method ] = val;
                }
            }, method, val, arguments.length );
        };
    } );

// support: safari <=7 - 9.1, chrome <=37 - 49
// add the top/left csshooks using jquery.fn.position
// webkit bug: https://bugs.webkit.org/show_bug.cgi?id=29084
// blink bug: https://bugs.chromium.org/p/chromium/issues/detail?id=589347
// getcomputedstyle returns percent when specified for top/left/bottom/right;
// rather than make the css module depend on the offset module, just check for it here
    jquery.each( [ "top", "left" ], function( _i, prop ) {
        jquery.csshooks[ prop ] = addgethookif( support.pixelposition,
            function( elem, computed ) {
                if ( computed ) {
                    computed = curcss( elem, prop );

                    // if curcss returns percentage, fallback to offset
                    return rnumnonpx.test( computed ) ?
                        jquery( elem ).position()[ prop ] + "px" :
                        computed;
                }
            }
        );
    } );


// create innerheight, innerwidth, height, width, outerheight and outerwidth methods
    jquery.each( { height: "height", width: "width" }, function( name, type ) {
        jquery.each( { padding: "inner" + name, content: type, "": "outer" + name },
            function( defaultextra, funcname ) {

                // margin is only for outerheight, outerwidth
                jquery.fn[ funcname ] = function( margin, value ) {
                    var chainable = arguments.length && ( defaultextra || typeof margin !== "boolean" ),
                        extra = defaultextra || ( margin === true || value === true ? "margin" : "border" );

                    return access( this, function( elem, type, value ) {
                        var doc;

                        if ( iswindow( elem ) ) {

                            // $( window ).outerwidth/height return w/h including scrollbars (gh-1729)
                            return funcname.indexof( "outer" ) === 0 ?
                                elem[ "inner" + name ] :
                                elem.document.documentelement[ "client" + name ];
                        }

                        // get document width or height
                        if ( elem.nodetype === 9 ) {
                            doc = elem.documentelement;

                            // either scroll[width/height] or offset[width/height] or client[width/height],
                            // whichever is greatest
                            return math.max(
                                elem.body[ "scroll" + name ], doc[ "scroll" + name ],
                                elem.body[ "offset" + name ], doc[ "offset" + name ],
                                doc[ "client" + name ]
                            );
                        }

                        return value === undefined ?

                            // get width or height on the element, requesting but not forcing parsefloat
                            jquery.css( elem, type, extra ) :

                            // set width or height on the element
                            jquery.style( elem, type, value, extra );
                    }, type, chainable ? margin : undefined, chainable );
                };
            } );
    } );


    jquery.each( [
        "ajaxstart",
        "ajaxstop",
        "ajaxcomplete",
        "ajaxerror",
        "ajaxsuccess",
        "ajaxsend"
    ], function( _i, type ) {
        jquery.fn[ type ] = function( fn ) {
            return this.on( type, fn );
        };
    } );




    jquery.fn.extend( {

        bind: function( types, data, fn ) {
            return this.on( types, null, data, fn );
        },
        unbind: function( types, fn ) {
            return this.off( types, null, fn );
        },

        delegate: function( selector, types, data, fn ) {
            return this.on( types, selector, data, fn );
        },
        undelegate: function( selector, types, fn ) {

            // ( namespace ) or ( selector, types [, fn] )
            return arguments.length === 1 ?
                this.off( selector, "**" ) :
                this.off( types, selector || "**", fn );
        },

        hover: function( fnover, fnout ) {
            return this.mouseenter( fnover ).mouseleave( fnout || fnover );
        }
    } );

    jquery.each( ( "blur focus focusin focusout resize scroll click dblclick " +
        "mousedown mouseup mousemove mouseover mouseout mouseenter mouseleave " +
        "change select submit keydown keypress keyup contextmenu" ).split( " " ),
        function( _i, name ) {

            // handle event binding
            jquery.fn[ name ] = function( data, fn ) {
                return arguments.length > 0 ?
                    this.on( name, null, data, fn ) :
                    this.trigger( name );
            };
        } );




// support: android <=4.0 only
// make sure we trim bom and nbsp
    var rtrim = /^[\s\ufeff\xa0]+|[\s\ufeff\xa0]+$/g;

// bind a function to a context, optionally partially applying any
// arguments.
// jquery.proxy is deprecated to promote standards (specifically function#bind)
// however, it is not slated for removal any time soon
    jquery.proxy = function( fn, context ) {
        var tmp, args, proxy;

        if ( typeof context === "string" ) {
            tmp = fn[ context ];
            context = fn;
            fn = tmp;
        }

        // quick check to determine if target is callable, in the spec
        // this throws a typeerror, but we will just return undefined.
        if ( !isfunction( fn ) ) {
            return undefined;
        }

        // simulated bind
        args = slice.call( arguments, 2 );
        proxy = function() {
            return fn.apply( context || this, args.concat( slice.call( arguments ) ) );
        };

        // set the guid of unique handler to the same of original handler, so it can be removed
        proxy.guid = fn.guid = fn.guid || jquery.guid++;

        return proxy;
    };

    jquery.holdready = function( hold ) {
        if ( hold ) {
            jquery.readywait++;
        } else {
            jquery.ready( true );
        }
    };
    jquery.isarray = array.isarray;
    jquery.parsejson = json.parse;
    jquery.nodename = nodename;
    jquery.isfunction = isfunction;
    jquery.iswindow = iswindow;
    jquery.camelcase = camelcase;
    jquery.type = totype;

    jquery.now = date.now;

    jquery.isnumeric = function( obj ) {

        // as of jquery 3.0, isnumeric is limited to
        // strings and numbers (primitives or objects)
        // that can be coerced to finite numbers (gh-2662)
        var type = jquery.type( obj );
        return ( type === "number" || type === "string" ) &&

            // parsefloat nans numeric-cast false positives ("")
            // ...but misinterprets leading-number strings, particularly hex literals ("0x...")
            // subtraction forces infinities to nan
            !isnan( obj - parsefloat( obj ) );
    };

    jquery.trim = function( text ) {
        return text == null ?
            "" :
            ( text + "" ).replace( rtrim, "" );
    };



// register as a named amd module, since jquery can be concatenated with other
// files that may use define, but not via a proper concatenation script that
// understands anonymous amd modules. a named amd is safest and most robust
// way to register. lowercase jquery is used because amd module names are
// derived from file names, and jquery is normally delivered in a lowercase
// file name. do this after creating the global so that if an amd module wants
// to call noconflict to hide this version of jquery, it will work.

// note that for maximum portability, libraries that are not jquery should
// declare themselves as anonymous modules, and avoid setting a global if an
// amd loader is present. jquery is a special case. for more information, see
// https://github.com/jrburke/requirejs/wiki/updating-existing-libraries#wiki-anon

    if ( typeof define === "function" && define.amd ) {
        define( "jquery", [], function() {
            return jquery;
        } );
    }




    var

        // map over jquery in case of overwrite
        _jquery = window.jquery,

        // map over the $ in case of overwrite
        _$ = window.$;

    jquery.noconflict = function( deep ) {
        if ( window.$ === jquery ) {
            window.$ = _$;
        }

        if ( deep && window.jquery === jquery ) {
            window.jquery = _jquery;
        }

        return jquery;
    };

// expose jquery and $ identifiers, even in amd
// (#7102#comment:10, https://github.com/jquery/jquery/pull/557)
// and commonjs for browser emulators (#13566)
    if ( typeof noglobal === "undefined" ) {
        window.jquery = window.$ = jquery;
    }




    return jquery;
} );