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/*!

 * jQuery JavaScript Library v3.4.1 -ajax,-ajax/jsonp,-ajax/load,-ajax/parseXML,-ajax/script,-ajax/var/location,-ajax/var/nonce,-ajax/var/rquery,-ajax/xhr,-manipulation/_evalUrl,-event/ajax,-effects,-effects/Tween,-effects/animatedSelector

 * 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: 2019-05-01T21:04Z

 */

( 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,

                nonce: true,

                noModule: true

        };

        function DOMEval( code, node, doc ) {

                doc = doc || document;

                var i, val,

                        script = doc.createElement( "script" );

                script.text = code;

                if ( node ) {

                        for ( i in preservedScriptAttributes ) {

                                // Support: Firefox 64+, Edge 18+

                                // Some browsers don't support the "nonce" property on scripts.

                                // On the other hand, just using `getAttribute` is not enough as

                                // the `nonce` attribute is reset to an empty string whenever it

                                // becomes browsing-context connected.

                                // See https://github.com/whatwg/html/issues/2369

                                // See https://html.spec.whatwg.org/#nonce-attributes

                                // The `node.getAttribute` check was added for the sake of

                                // `jQuery.globalEval` so that it can fake a nonce-containing node

                                // via an object.

                                val = node[ i ] || node.getAttribute && node.getAttribute( i );

                                if ( val ) {

                                        script.setAttribute( i, val );

                                }

                        }

                }

                doc.head.appendChild( script ).parentNode.removeChild( script );

        }

function toType( obj ) {

        if ( obj == null ) {

                return obj + "";

        }

        // Support: Android <=2.3 only (functionish RegExp)

        return typeof obj === "object" || typeof obj === "function" ?

                class2type[ toString.call( obj ) ] || "object" :

                typeof obj;

}

/* global Symbol */

// Defining this global in .eslintrc.json would create a danger of using the global

// unguarded in another place, it seems safer to define global only for this module

var

        version = "3.4.1 -ajax,-ajax/jsonp,-ajax/load,-ajax/parseXML,-ajax/script,-ajax/var/location,-ajax/var/nonce,-ajax/var/rquery,-ajax/xhr,-manipulation/_evalUrl,-event/ajax,-effects,-effects/Tween,-effects/animatedSelector",

        // 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 ) {

                                copy = options[ name ];

                                // Prevent Object.prototype pollution

                                // Prevent never-ending loop

                                if ( name === "__proto__" || target === copy ) {

                                        continue;

                                }

                                // Recurse if we're merging plain objects or arrays

                                if ( deep && copy && ( jQuery.isPlainObject( copy ) ||

                                        ( copyIsArray = Array.isArray( copy ) ) ) ) {

                                        src = target[ name ];

                                        // Ensure proper type for the source value

                                        if ( copyIsArray && !Array.isArray( src ) ) {

                                                clone = [];

                                        } else if ( !copyIsArray && !jQuery.isPlainObject( src ) ) {

                                                clone = {};

                                        } else {

                                                clone = src;

                                        }

                                        copyIsArray = false;

                                        // Never move original objects, clone them

                                        target[ name ] = jQuery.extend( deep, clone, copy );

                                // Don't bring in undefined values

                                } else if ( copy !== undefined ) {

                                        target[ name ] = copy;

                                }

                        }

                }

        }

        // Return the modified object

        return target;

};

jQuery.extend( {

        // Unique for each copy of jQuery on the page

        expando: "jQuery" + ( version + Math.random() ).replace( /\D/g, "" ),

        // Assume jQuery is ready without the ready module

        isReady: true,

        error: function( msg ) {

                throw new Error( msg );

        },

        noop: function() {},

        isPlainObject: function( obj ) {

                var proto, Ctor;

                // Detect obvious negatives

                // Use toString instead of jQuery.type to catch host objects

                if ( !obj || toString.call( obj ) !== "[object Object]" ) {

                        return false;

                }

                proto = getProto( obj );

                // Objects with no prototype (e.g., `Object.create( null )`) are plain

                if ( !proto ) {

                        return true;

                }

                // Objects with prototype are plain iff they were constructed by a global Object function

                Ctor = hasOwn.call( proto, "constructor" ) && proto.constructor;

                return typeof Ctor === "function" && fnToString.call( Ctor ) === ObjectFunctionString;

        },

        isEmptyObject: function( obj ) {

                var name;

                for ( name in obj ) {

                        return false;

                }

                return true;

        },

        // Evaluates a script in a global context

        globalEval: function( code, options ) {

                DOMEval( code, { nonce: options && options.nonce } );

        },

        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 v2.3.4

 * https://sizzlejs.com/

 *

 * Copyright JS Foundation and other contributors

 * Released under the MIT license

 * https://js.foundation/

 *

 * Date: 2019-04-08

 */

(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(),

        nonnativeSelectorCache = 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 + "*" ),

        rdescend = new RegExp( whitespace + "|>" ),

        rpseudo = new RegExp( pseudos ),

        ridentifier = new RegExp( "^" + identifier + "$" ),

        matchExpr = {

                "ID": new RegExp( "^#(" + identifier + ")" ),

                "CLASS": new RegExp( "^\\.(" + identifier + ")" ),

                "TAG": new RegExp( "^(" + identifier + "|[*])" ),

                "ATTR": new RegExp( "^" + attributes ),

                "PSEUDO": new RegExp( "^" + pseudos ),

                "CHILD": new RegExp( "^:(only|first|last|nth|nth-last)-(child|of-type)(?:\\(" + whitespace +

                        "*(even|odd|(([+-]|)(\\d*)n|)" + whitespace + "*(?:([+-]|)" + whitespace +

                        "*(\\d+)|))" + whitespace + "*\\)|)", "i" ),

                "bool": new RegExp( "^(?:" + booleans + ")$", "i" ),

                // For use in libraries implementing .is()

                // We use this for POS matching in `select`

                "needsContext": new RegExp( "^" + whitespace + "*[>+~]|:(even|odd|eq|gt|lt|nth|first|last)(?:\\(" +

                        whitespace + "*((?:-\\d)?\\d*)" + whitespace + "*\\)|)(?=[^-]|$)", "i" )

        },

        rhtml = /HTML$/i,

        rinputs = /^(?:input|select|textarea|button)$/i,

        rheader = /^h\d$/i,

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

        // Easily-parseable/retrievable ID or TAG or CLASS selectors

        rquickExpr = /^(?:#([\w-]+)|(\w+)|\.([\w-]+))$/,

        rsibling = /[+~]/,

        // CSS escapes

        // http://www.w3.org/TR/CSS21/syndata.html#escaped-characters

        runescape = new RegExp( "\\\\([\\da-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();

        },

        inDisabledFieldset = addCombinator(

                function( elem ) {

                        return elem.disabled === true && elem.nodeName.toLowerCase() === "fieldset";

                },

                { dir: "parentNode", next: "legend" }

        );

// Optimize for push.apply( _, NodeList )

try {

        push.apply(

                (arr = slice.call( preferredDoc.childNodes )),

                preferredDoc.childNodes

        );

        // Support: Android<4.0

        // Detect silently failing push.apply

        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 &&

                                !nonnativeSelectorCache[ selector + " " ] &&

                                (!rbuggyQSA || !rbuggyQSA.test( selector )) &&

                                // Support: IE 8 only

                                // Exclude object elements

                                (nodeType !== 1 || context.nodeName.toLowerCase() !== "object") ) {

                                newSelector = selector;

                                newContext = context;

                                // qSA considers elements outside a scoping root when evaluating child or

                                // descendant combinators, which is not what we want.

                                // In such cases, we work around the behavior by prefixing every selector in the

                                // list with an ID selector referencing the scope context.

                                // Thanks to Andrew Dupont for this technique.

                                if ( nodeType === 1 && rdescend.test( selector ) ) {

                                        // 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;

                                }

                                try {

                                        push.apply( results,

                                                newContext.querySelectorAll( newSelector )

                                        );

                                        return results;

                                } catch ( qsaError ) {

                                        nonnativeSelectorCache( selector, true );

                                } finally {

                                        if ( nid === expando ) {

                                                context.removeAttribute( "id" );

                                        }

                                }

                        }

                }

        }

        // All others

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

}

/**

 * Create key-value caches of limited size

 * @returns {function(string, object)} Returns the Object data after storing it on itself with

 *        property name the (space-suffixed) string and (if the cache is larger than Expr.cacheLength)

 *        deleting the oldest entry

 */

function createCache() {

        var keys = [];

        function cache( key, value ) {

                // Use (key + " ") to avoid collision with native prototype properties (see Issue #157)

                if ( keys.push( key + " " ) > Expr.cacheLength ) {

                        // Only keep the most recent entries

                        delete cache[ keys.shift() ];

                }

                return (cache[ key + " " ] = value);

        }

        return cache;

}

/**

 * Mark a function for special use by Sizzle

 * @param {Function} fn The function to mark

 */

function markFunction( fn ) {

        fn[ expando ] = true;

        return fn;

}

/**

 * Support testing using an element

 * @param {Function} fn Passed the created element and returns a boolean result

 */

function assert( fn ) {

        var el = document.createElement("fieldset");

        try {

                return !!fn( el );

        } catch (e) {

                return false;

        } finally {

                // Remove from its parent by default

                if ( el.parentNode ) {

                        el.parentNode.removeChild( el );

                }

                // release memory in IE

                el = null;

        }

}

/**

 * Adds the same handler for all of the specified attrs

 * @param {String} attrs Pipe-separated list of attributes

 * @param {Function} handler The method that will be applied

 */

function addHandle( attrs, handler ) {

        var arr = attrs.split("|"),

                i = arr.length;

        while ( i-- ) {

                Expr.attrHandle[ arr[i] ] = handler;

        }

}

/**

 * Checks document order of two siblings

 * @param {Element} a

 * @param {Element} b

 * @returns {Number} Returns less than 0 if a precedes b, greater than 0 if a follows b

 */

function siblingCheck( a, b ) {

        var cur = b && a,

                diff = cur && a.nodeType === 1 && b.nodeType === 1 &&

                        a.sourceIndex - b.sourceIndex;