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/*!

 * jQuery JavaScript Library v2.1.3

 * http://jquery.com/

 *

 * Includes Sizzle.js

 * http://sizzlejs.com/

 *

 * Copyright 2005, 2014 jQuery Foundation, Inc. and other contributors

 * Released under the MIT license

 * http://jquery.org/license

 *

 * Date: 2014-12-18T15:11Z

 */

(function( global, factory ) {

	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 ) {

// Support: Firefox 18+

// Can't be in strict mode, several libs including ASP.NET trace

// the stack via arguments.caller.callee and Firefox dies if

// you try to trace through "use strict" call chains. (#13335)

//

var arr = [];

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 support = {};

var

	// Use the correct document accordingly with window argument (sandbox)

	document = window.document,

	version = "2.1.3",

	// 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<4.1

	// Make sure we trim BOM and NBSP

	rtrim = /^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g,

	// Matches dashed string for camelizing

	rmsPrefix = /^-ms-/,

	rdashAlpha = /-([\da-z])/gi,

	// Used by jQuery.camelCase as callback to replace()

	fcamelCase = function( all, letter ) {

		return letter.toUpperCase();

	};

jQuery.fn = jQuery.prototype = {

	// The current version of jQuery being used

	jquery: version,

	constructor: jQuery,

	// Start with an empty selector

	selector: "",

	// 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 num != null ?

			// Return just the one element from the set

			( num < 0 ? this[ num + this.length ] : this[ num ] ) :

			// Return all the elements in a clean array

			slice.call( this );

	},

	// 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;

		ret.context = this.context;

		// Return the newly-formed element set

		return ret;

	},

	// Execute a callback for every element in the matched set.

	// (You can seed the arguments with an array of args, but this is

	// only used internally.)

	each: function( callback, args ) {

		return jQuery.each( this, callback, args );

	},

	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(null);

	},

	// 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" && !jQuery.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 = jQuery.isArray(copy)) ) ) {

					if ( copyIsArray ) {

						copyIsArray = false;

						clone = src && jQuery.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() {},

	isFunction: function( obj ) {

		return jQuery.type(obj) === "function";

	},

	isArray: Array.isArray,

	isWindow: function( obj ) {

		return obj != null && obj === obj.window;

	},

	isNumeric: function( obj ) {

		// parseFloat NaNs numeric-cast false positives (null|true|false|"")

		// ...but misinterprets leading-number strings, particularly hex literals ("0x...")

		// subtraction forces infinities to NaN

		// adding 1 corrects loss of precision from parseFloat (#15100)

		return !jQuery.isArray( obj ) && (obj - parseFloat( obj ) + 1) >= 0;

	},

	isPlainObject: function( obj ) {

		// Not plain objects:

		// - Any object or value whose internal [[Class]] property is not "[object Object]"

		// - DOM nodes

		// - window

		if ( jQuery.type( obj ) !== "object" || obj.nodeType || jQuery.isWindow( obj ) ) {

			return false;

		}

		if ( obj.constructor &&

				!hasOwn.call( obj.constructor.prototype, "isPrototypeOf" ) ) {

			return false;

		}

		// If the function hasn't returned already, we're confident that

		// |obj| is a plain object, created by {} or constructed with new Object

		return true;

	},

	isEmptyObject: function( obj ) {

		var name;

		for ( name in obj ) {

			return false;

		}

		return true;

	},

	type: function( obj ) {

		if ( obj == null ) {

			return obj + "";

		}

		// Support: Android<4.0, iOS<6 (functionish RegExp)

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

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

			typeof obj;

	},

	// Evaluates a script in a global context

	globalEval: function( code ) {

		var script,

			indirect = eval;

		code = jQuery.trim( code );

		if ( code ) {

			// If the code includes a valid, prologue position

			// strict mode pragma, execute code by injecting a

			// script tag into the document.

			if ( code.indexOf("use strict") === 1 ) {

				script = document.createElement("script");

				script.text = code;

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

			} else {

			// Otherwise, avoid the DOM node creation, insertion

			// and removal by using an indirect global eval

				indirect( code );

			}

		}

	},

	// Convert dashed to camelCase; used by the css and data modules

	// Support: IE9-11+

	// Microsoft forgot to hump their vendor prefix (#9572)

	camelCase: function( string ) {

		return string.replace( rmsPrefix, "ms-" ).replace( rdashAlpha, fcamelCase );

	},

	nodeName: function( elem, name ) {

		return elem.nodeName && elem.nodeName.toLowerCase() === name.toLowerCase();

	},

	// args is for internal usage only

	each: function( obj, callback, args ) {

		var value,

			i = 0,

			length = obj.length,

			isArray = isArraylike( obj );

		if ( args ) {

			if ( isArray ) {

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

					value = callback.apply( obj[ i ], args );

					if ( value === false ) {

						break;

					}

				}

			} else {

				for ( i in obj ) {

					value = callback.apply( obj[ i ], args );

					if ( value === false ) {

						break;

					}

				}

			}

		// A special, fast, case for the most common use of each

		} else {

			if ( isArray ) {

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

					value = callback.call( obj[ i ], i, obj[ i ] );

					if ( value === false ) {

						break;

					}

				}

			} else {

				for ( i in obj ) {

					value = callback.call( obj[ i ], i, obj[ i ] );

					if ( value === false ) {

						break;

					}

				}

			}

		}

		return obj;

	},

	// Support: Android<4.1

	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 );

	},

	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 value,

			i = 0,

			length = elems.length,

			isArray = isArraylike( elems ),

			ret = [];

		// Go through the array, translating each of the items to their new values

		if ( isArray ) {

			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,

	// Bind a function to a context, optionally partially applying any

	// arguments.

	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 ( !jQuery.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;

	},

	now: Date.now,

	// jQuery.support is not used in Core but other projects attach their

	// properties to it so it needs to exist.

	support: support

});

// Populate the class2type map

jQuery.each("Boolean Number String Function Array Date RegExp Object Error".split(" "), function(i, name) {

	class2type[ "[object " + name + "]" ] = name.toLowerCase();

});

function isArraylike( obj ) {

	var length = obj.length,

		type = jQuery.type( obj );

	if ( type === "function" || jQuery.isWindow( obj ) ) {

		return false;

	}

	if ( obj.nodeType === 1 && length ) {

		return true;

	}

	return type === "array" || length === 0 ||

		typeof length === "number" && length > 0 && ( length - 1 ) in obj;

}

var Sizzle =

/*!

 * Sizzle CSS Selector Engine v2.2.0-pre

 * http://sizzlejs.com/

 *

 * Copyright 2008, 2014 jQuery Foundation, Inc. and other contributors

 * Released under the MIT license

 * http://jquery.org/license

 *

 * Date: 2014-12-16

 */

(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;

	},

	// General-purpose constants

	MAX_NEGATIVE = 1 << 31,

	// 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

	// http://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

	// Whitespace characters http://www.w3.org/TR/css3-selectors/#whitespace

	whitespace = "[\\x20\\t\\r\\n\\f]",

	// http://www.w3.org/TR/css3-syntax/#characters

	characterEncoding = "(?:\\\\.|[\\w-]|[^\\x00-\\xa0])+",

	// Loosely modeled on CSS identifier characters

	// An unquoted value should be a CSS identifier http://www.w3.org/TR/css3-selectors/#attribute-selectors

	// Proper syntax: http://www.w3.org/TR/CSS21/syndata.html#value-def-identifier

	identifier = characterEncoding.replace( "w", "w#" ),

	// Attribute selectors: http://www.w3.org/TR/selectors/#attribute-selectors

	attributes = "\\[" + whitespace + "*(" + characterEncoding + ")(?:" + whitespace +

		// Operator (capture 2)

		"*([*^$|!~]?=)" + whitespace +

		// "Attribute values must be CSS identifiers [capture 5] or strings [capture 3 or capture 4]"

		"*(?:'((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\"|(" + identifier + "))|)" + whitespace +

		"*\\]",

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

		// 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( "^#(" + characterEncoding + ")" ),

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

		"TAG": new RegExp( "^(" + characterEncoding.replace( "w", "w*" ) + ")" ),

		"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 = /[+~]/,

	rescape = /'|\\/g,

	// 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 );

	},

	// Used for iframes

	// See setDocument()

	// Removing the function wrapper causes a "Permission Denied"

	// error in IE

	unloadHandler = function() {

		setDocument();

	};

// 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 match, elem, m, nodeType,

		// QSA vars

		i, groups, old, nid, newContext, newSelector;

	if ( ( context ? context.ownerDocument || context : preferredDoc ) !== document ) {

		setDocument( context );

	}

	context = context || document;

	results = results || [];

	nodeType = context.nodeType;

	if ( typeof selector !== "string" || !selector ||

		nodeType !== 1 && nodeType !== 9 && nodeType !== 11 ) {

		return results;

	}

	if ( !seed && documentIsHTML ) {

		// Try to shortcut find operations when possible (e.g., not under DocumentFragment)

		if ( nodeType !== 11 && (match = rquickExpr.exec( selector )) ) {

			// Speed-up: Sizzle("#ID")

			if ( (m = match[1]) ) {

				if ( nodeType === 9 ) {

					elem = context.getElementById( m );

					// Check parentNode to catch when Blackberry 4.6 returns

					// nodes that are no longer in the document (jQuery #6963)

					if ( elem && elem.parentNode ) {

						// Handle the case where IE, Opera, and Webkit return items

						// by name instead of ID

						if ( elem.id === m ) {

							results.push( elem );

							return results;

						}

					} else {

						return results;

					}

				} else {

					// Context is not a document

					if ( context.ownerDocument && (elem = context.ownerDocument.getElementById( m )) &&

						contains( context, elem ) && elem.id === m ) {

						results.push( elem );

						return results;

					}

				}

			// Speed-up: Sizzle("TAG")

			} else if ( match[2] ) {

				push.apply( results, context.getElementsByTagName( selector ) );

				return results;

			// Speed-up: Sizzle(".CLASS")

			} else if ( (m = match[3]) && support.getElementsByClassName ) {

				push.apply( results, context.getElementsByClassName( m ) );

				return results;

			}

		}

		// QSA path

		if ( support.qsa && (!rbuggyQSA || !rbuggyQSA.test( selector )) ) {

			nid = old = expando;

			newContext = context;

			newSelector = nodeType !== 1 && selector;

			// qSA works strangely on Element-rooted queries

			// We can work around this by specifying an extra ID on the root

			// and working up from there (Thanks to Andrew Dupont for the technique)

			// IE 8 doesn't work on object elements

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

				groups = tokenize( selector );

				if ( (old = context.getAttribute("id")) ) {

					nid = old.replace( rescape, "\\$&" );

				} else {

					context.setAttribute( "id", nid );

				}

				nid = "[id='" + nid + "'] ";

				i = groups.length;

				while ( i-- ) {

					groups[i] = nid + toSelector( groups[i] );

				}

				newContext = rsibling.test( selector ) && testContext( context.parentNode ) || context;

				newSelector = groups.join(",");

			}

			if ( newSelector ) {

				try {

					push.apply( results,

						newContext.querySelectorAll( newSelector )

					);

					return results;

				} catch(qsaError) {

				} finally {

					if ( !old ) {

						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 div and expects a boolean result

 */

function assert( fn ) {

	var div = document.createElement("div");

	try {

		return !!fn( div );

	} catch (e) {

		return false;

	} finally {

		// Remove from its parent by default

		if ( div.parentNode ) {

			div.parentNode.removeChild( div );

		}

		// release memory in IE

		div = 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 = attrs.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 &&

			( ~b.sourceIndex || MAX_NEGATIVE ) -

			( ~a.sourceIndex || MAX_NEGATIVE );

	// 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 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)