jQuery 源码(方便查阅)

/*!
 * jQuery JavaScript Library v3.3.1
 * 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: 2018-01-20T17:24Z
 */
( 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 document = window.document;

var getProto = Object.getPrototypeOf;

var slice = arr.slice;

var concat = arr.concat;

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 preservedScriptAttributes = {
        type: true,
        src: true,
        noModule: true
    };

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

        var i,
            script = doc.createElement( "script" );

        script.text = code;
        if ( node ) {
            for ( i in preservedScriptAttributes ) {
                if ( node[ i ] ) {
                    script[ i ] = node[ i ];
                }
            }
        }
        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 = "3.3.1",

    // 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 );
    },

    // Support: Android <=4.0 only
    // Make sure we trim BOM and NBSP
    rtrim = /^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g;

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 );
    },

    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 ) {
                src = target[ name ];
                copy = options[ name ];

                // Prevent never-ending loop
                if ( target === copy ) {
                    continue;
                }

                // Recurse if we're merging plain objects or arrays
                if ( deep && copy && ( jQuery.isPlainObject( copy ) ||
                    ( copyIsArray = Array.isArray( copy ) ) ) ) {

                    if ( copyIsArray ) {
                        copyIsArray = false;
                        clone = src && Array.isArray( src ) ? src : [];

                    } else {
                        clone = src && jQuery.isPlainObject( src ) ? src : {};
                    }

                    // 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 ) {

        /* eslint-disable no-unused-vars */
        // See https://github.com/eslint/eslint/issues/6125
        var name;

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

    // Evaluates a script in a global context
    globalEval: function( code ) {
        DOMEval( code );
    },

    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;
    },

    // Support: Android <=4.0 only
    trim: function( text ) {
        return text == null ?
            "" :
            ( text + "" ).replace( rtrim, "" );
    },

    // 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 concat.apply( [], 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 v2.3.3
 * https://sizzlejs.com/
 *
 * Copyright jQuery Foundation and other contributors
 * Released under the MIT license
 * http://jquery.org/license
 *
 * Date: 2016-08-08
 */
(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(),
    sortOrder = function( a, b ) {
        if ( a === b ) {
            hasDuplicate = true;
        }
        return 0;
    },

    // Instance methods
    hasOwn = ({}).hasOwnProperty,
    arr = [],
    pop = arr.pop,
    push_native = 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]",

    // http://www.w3.org/TR/CSS21/syndata.html#value-def-identifier
    identifier = "(?:\\\\.|[\\w-]|[^\0-\\xa0])+",

    // 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 + "*" ),

    rattributeQuotes = new RegExp( "=" + whitespace + "*([^\\]'\"]*?)" + whitespace + "*\\]", "g" ),

    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" )
    },

    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-f]{1,6}" + whitespace + "?|(" + whitespace + ")|.)", "ig" ),
    funescape = function( _, escaped, escapedWhitespace ) {
        var high = "0x" + escaped - 0x10000;
        // NaN means non-codepoint
        // Support: Firefox<24
        // Workaround erroneous numeric interpretation of +"0x"
        return high !== high || escapedWhitespace ?
            escaped :
            high < 0 ?
                // BMP codepoint
                String.fromCharCode( high + 0x10000 ) :
                // Supplemental Plane codepoint (surrogate pair)
                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();
    },

    disabledAncestor = addCombinator(
        function( elem ) {
            return elem.disabled === true && ("form" in elem || "label" in elem);
        },
        { 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
    arr[ preferredDoc.childNodes.length ].nodeType;
} catch ( e ) {
    push = { apply: arr.length ?

        // Leverage slice if possible
        function( target, els ) {
            push_native.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 ) {

        if ( ( context ? context.ownerDocument || context : preferredDoc ) !== document ) {
            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 &&
                !compilerCache[ selector + " " ] &&
                (!rbuggyQSA || !rbuggyQSA.test( selector )) ) {

                if ( nodeType !== 1 ) {
                    newContext = context;
                    newSelector = selector;

                // qSA looks outside Element context, which is not what we want
                // Thanks to Andrew Dupont for this workaround technique
                // Support: IE <=8
                // Exclude object elements
                } else if ( context.nodeName.toLowerCase() !== "object" ) {

                    // 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 + " " + toSelector( groups[i] );
                    }
                    newSelector = groups.join( "," );

                    // Expand context for sibling selectors
                    newContext = rsibling.test( selector ) && testContext( context.parentNode ) ||
                        context;
                }

                if ( newSelector ) {
                    try {
                        push.apply( results,
                            newContext.querySelectorAll( newSelector )
                        );
                        return results;
                    } catch ( qsaError ) {
                    } 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 &&
                        disabledAncestor( 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 ) {
    // documentElement is verified for cases where it doesn't yet exist
    // (such as loading iframes in IE - #4833)
    var documentElement = elem && (elem.ownerDocument || elem).documentElement;
    return documentElement ? documentElement.nodeName !== "HTML" : false;
};

/**
 * 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
    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
    // Accessing iframe documents after unload throws "permission denied" errors (jQuery #13936)
    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 );
        }
    }

    /* 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 ) {
            // 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("~=");
            }

            // 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(".#.+[+~]");
            }
        });

        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" );
            }

            // 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
        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
            if ( a === document || a.ownerDocument === preferredDoc && contains(preferredDoc, a) ) {
                return -1;
            }
            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 ) {
            return a === document ? -1 :
                b === document ? 1 :
                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
            ap[i] === preferredDoc ? -1 :
            bp[i] === preferredDoc ? 1 :
            0;
    };

    return document;
};

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

Sizzle.matchesSelector = function( elem, expr ) {
    // Set document vars if needed
    if ( ( elem.ownerDocument || elem ) !== document ) {
        setDocument( elem );
    }

    // Make sure that attribute selectors are quoted
    expr = expr.replace( rattributeQuotes, "='$1']" );

    if ( support.matchesSelector && documentIsHTML &&
        !compilerCache[ 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) {}
    }

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

Sizzle.contains = function( context, elem ) {
    // Set document vars if needed
    if ( ( context.ownerDocument || context ) !== document ) {
        setDocument( context );
    }
    return contains( context, elem );
};

Sizzle.attr = function( elem, name ) {
    // Set document vars if needed
    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 += "";

                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;
            };
        },

        "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 || elem.innerText || 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 ) {
                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;
            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 ) {
                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;
                    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 ( nodeName( elem, "iframe" ) ) {
            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 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.
            jQuery.contains( elem.ownerDocument, elem ) &&

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

var swap = function( elem, options, callback, args ) {
    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.apply( elem, args || [] );

    // Revert the old values
    for ( name in options ) {
        elem.style[ name ] = old[ name ];
    }

    return ret;
};




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 = ( 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 );



// We have to close these tags to support XHTML (#13200)
var wrapMap = {

    // Support: IE <=9 only
    option: [ 1, "<select multiple='multiple'>", "</select>" ],

    // 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, "", "" ]
};

// Support: IE <=9 only
wrapMap.optgroup = wrapMap.option;

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


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, contains, 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;
        }

        contains = jQuery.contains( elem.ownerDocument, elem );

        // Append to fragment
        tmp = getAll( fragment.appendChild( elem ), "script" );

        // Preserve script evaluation history
        if ( contains ) {
            setGlobalEval( tmp );
        }

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

    return fragment;
}


( 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;
} )();
var documentElement = document.documentElement;



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

function returnTrue() {
    return true;
}

function returnFalse() {
    return false;
}

// Support: IE <=9 only
// See #13393 for more info
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 );

        // Don't attach events to noData or text/comment nodes (but allow plain objects)
        if ( !elemData ) {
            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 = {};
        }
        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 ) {

        // Make a writable jQuery.Event from the native event object
        var event = jQuery.event.fix( nativeEvent );

        var i, j, ret, matched, handleObj, handlerQueue,
            args = new Array( arguments.length ),
            handlers = ( dataPriv.get( this, "events" ) || {} )[ 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() ) {

                // Triggered event must either 1) have no namespace, or 2) have namespace(s)
                // a subset or equal to those in the bound event (both can have no namespace).
                if ( !event.rnamespace || 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
        },
        focus: {

            // Fire native event if possible so blur/focus sequence is correct
            trigger: function() {
                if ( this !== safeActiveElement() && this.focus ) {
                    this.focus();
                    return false;
                }
            },
            delegateType: "focusin"
        },
        blur: {
            trigger: function() {
                if ( this === safeActiveElement() && this.blur ) {
                    this.blur();
                    return false;
                }
            },
            delegateType: "focusout"
        },
        click: {

            // For checkbox, fire native event so checked state will be right
            trigger: function() {
                if ( this.type === "checkbox" && this.click && nodeName( this, "input" ) ) {
                    this.click();
                    return false;
                }
            },

            // For cross-browser consistency, don't fire native .click() on links
            _default: function( event ) {
                return nodeName( event.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;
                }
            }
        }
    }
};

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,
    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 );

// 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

    /* eslint-disable max-len */

    // See https://github.com/eslint/eslint/issues/3229
    rxhtmlTag = /<(?!area|br|col|embed|hr|img|input|link|meta|param)(([a-z][^\/\0>\x20\t\r\n\f]*)[^>]*)\/>/gi,

    /* eslint-enable */

    // 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, pdataCur, udataOld, udataCur, events;

    if ( dest.nodeType !== 1 ) {
        return;
    }

    // 1. Copy private data: events, handlers, etc.
    if ( dataPriv.hasData( src ) ) {
        pdataOld = dataPriv.access( src );
        pdataCur = dataPriv.set( dest, pdataOld );
        events = pdataOld.events;

        if ( events ) {
            delete pdataCur.handle;
            pdataCur.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 = concat.apply( [], 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 ) {
                                jQuery._evalUrl( node.src );
                            }
                        } else {
                            DOMEval( node.textContent.replace( rcleanScript, "" ), doc, node );
                        }
                    }
                }
            }
        }
    }

    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 && jQuery.contains( node.ownerDocument, node ) ) {
                setGlobalEval( getAll( node, "script" ) );
            }
            node.parentNode.removeChild( node );
        }
    }

    return elem;
}

jQuery.extend( {
    htmlPrefilter: function( html ) {
        return html.replace( rxhtmlTag, "<$1></$2>" );
    },

    clone: function( elem, dataAndEvents, deepDataAndEvents ) {
        var i, l, srcElements, destElements,
            clone = elem.cloneNode( true ),
            inPage = jQuery.contains( elem.ownerDocument, 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 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)
        div.style.position = "absolute";
        scrollboxSizeVal = div.offsetWidth === 36 || "absolute";

        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,
        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;
        }
    } );
} )();


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 === "" && !jQuery.contains( elem.ownerDocument, 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

    // 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"
    },

    cssPrefixes = [ "Webkit", "Moz", "ms" ],
    emptyStyle = document.createElement( "div" ).style;

// Return a css property mapped to a potentially vendor prefixed property
function vendorPropName( name ) {

    // Shortcut for names that are not vendor prefixed
    if ( name in emptyStyle ) {
        return 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 property mapped along what jQuery.cssProps suggests or to
// a vendor prefixed property.
function finalPropName( name ) {
    var ret = jQuery.cssProps[ name ];
    if ( !ret ) {
        ret = jQuery.cssProps[ name ] = vendorPropName( name ) || name;
    }
    return ret;
}

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
        ) );
    }

    return delta;
}

function getWidthOrHeight( elem, dimension, extra ) {

    // Start with computed style
    var styles = getStyles( elem ),
        val = curCSS( elem, dimension, styles ),
        isBorderBox = jQuery.css( elem, "boxSizing", false, styles ) === "border-box",
        valueIsBorderBox = isBorderBox;

    // Support: Firefox <=54
    // Return a confounding non-pixel value or feign ignorance, as appropriate.
    if ( rnumnonpx.test( val ) ) {
        if ( !extra ) {
            return val;
        }
        val = "auto";
    }

    // Check for style in case a browser which returns unreliable values
    // for getComputedStyle silently falls back to the reliable elem.style
    valueIsBorderBox = valueIsBorderBox &&
        ( support.boxSizingReliable() || val === elem.style[ dimension ] );

    // Fall back to offsetWidth/offsetHeight when value is "auto"
    // This happens for inline elements with no explicit setting (gh-3571)
    // Support: Android <=4.1 - 4.3 only
    // Also use offsetWidth/offsetHeight for misreported inline dimensions (gh-3602)
    if ( val === "auto" ||
        !parseFloat( val ) && jQuery.css( elem, "display", false, styles ) === "inline" ) {

        val = elem[ "offset" + dimension[ 0 ].toUpperCase() + dimension.slice( 1 ) ];

        // offsetWidth/offsetHeight provide border-box values
        valueIsBorderBox = true;
    }

    // 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,
        "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)
            if ( type === "number" ) {
                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 ),
                isBorderBox = jQuery.css( elem, "boxSizing", false, styles ) === "border-box",
                subtract = extra && boxModelAdjustment(
                    elem,
                    dimension,
                    extra,
                    isBorderBox,
                    styles
                );

            // 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 && support.scrollboxSize() === styles.position ) {
                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 &&
                ( tween.elem.style[ jQuery.cssProps[ tween.prop ] ] != null ||
                    jQuery.cssHooks[ tween.prop ] ) ) {
                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 && type !== false ) {
            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" ) || {} )[ 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() {
                var doc = this.ownerDocument || 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,
                    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 = 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 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() ] = match[ 2 ];
                            }
                        }
                        match = responseHeaders[ key.toLowerCase() ];
                    }
                    return match == null ? null : match;
                },

                // 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++ ) + 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 );
            }

            // 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._evalUrl = function( url ) {
    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,
        "throws": true
    } );
};


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 requests
    if ( s.crossDomain ) {
        var script, callback;
        return {
            send: function( _, complete ) {
                script = jQuery( "<script>" ).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++ ) );
        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;
};




// Attach a bunch of functions for handling common AJAX events
jQuery.each( [
    "ajaxStart",
    "ajaxStop",
    "ajaxComplete",
    "ajaxError",
    "ajaxSuccess",
    "ajaxSend"
], function( i, type ) {
    jQuery.fn[ type ] = function( fn ) {
        return this.on( type, fn );
    };
} );




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 {
            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( ( "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 );
    };
} );

jQuery.fn.extend( {
    hover: function( fnOver, fnOut ) {
        return this.mouseenter( fnOver ).mouseleave( fnOut || fnOver );
    }
} );




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 );
    }
} );

// 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 ) );
};




// 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 ( !noGlobal ) {
    window.jQuery = window.$ = jQuery;
}




return jQuery;
} );

标签: none

添加新评论