Merge "Update jQuery to 1.8.2" into wmf/1.20wmf12origin/wmf/1.20wmf12

2 files changed, 616 insertions, 477 deletions

diff --git a/RELEASE-NOTES-1.20 b/RELEASE-NOTES-1.20
index b28cc70c10c0..27e850c43df6 100644
--- a/RELEASE-NOTES-1.20
+++ b/RELEASE-NOTES-1.20
@@ -67,7 +67,7 @@ upgrade PHP if you have not done so prior to upgrading MediaWiki.
 * (bug 35685) api.php URL and other entry point URLs are now listed on
   Special:Version
 * Edit notices can now be translated.
-* jQuery upgraded to 1.8.1
+* jQuery upgraded to 1.8.2.
 * jQuery UI upgraded to 1.8.23.
 * QUnit upgraded from v1.2.0 to v1.10.0.
 * (bug 37604) jquery.cookie upgraded to 2011 version.
diff --git a/resources/jquery/jquery.js b/resources/jquery/jquery.js
index 973ef3d9a469..d4f3bb38cdab 100644
--- a/resources/jquery/jquery.js
+++ b/resources/jquery/jquery.js
@@ -1,5 +1,5 @@
 /*!
- * jQuery JavaScript Library v1.8.1
+ * jQuery JavaScript Library v1.8.2
  * http://jquery.com/
  *
  * Includes Sizzle.js
@@ -9,7 +9,7 @@
  * Released under the MIT license
  * http://jquery.org/license
  *
- * Date: Thu Aug 30 2012 17:17:22 GMT-0400 (Eastern Daylight Time)
+ * Date: Thu Sep 20 2012 21:13:05 GMT-0400 (Eastern Daylight Time)
  */
 (function( window, undefined ) {
 var
@@ -186,7 +186,7 @@ jQuery.fn = jQuery.prototype = {
 	selector: "",
 
 	// The current version of jQuery being used
-	jquery: "1.8.1",
+	jquery: "1.8.2",
 
 	// The default length of a jQuery object is 0
 	length: 0,
@@ -573,7 +573,7 @@ jQuery.extend({
 	},
 
 	nodeName: function( elem, name ) {
-		return elem.nodeName && elem.nodeName.toUpperCase() === name.toUpperCase();
+		return elem.nodeName && elem.nodeName.toLowerCase() === name.toLowerCase();
 	},
 
 	// args is for internal usage only
@@ -630,7 +630,7 @@ jQuery.extend({
 		function( text ) {
 			return text == null ?
 				"" :
-				text.toString().replace( rtrim, "" );
+				( text + "" ).replace( rtrim, "" );
 		},
 
 	// results is for internal usage only
@@ -776,7 +776,7 @@ jQuery.extend({
 		};
 
 		// Set the guid of unique handler to the same of original handler, so it can be removed
-		proxy.guid = fn.guid = fn.guid || proxy.guid || jQuery.guid++;
+		proxy.guid = fn.guid = fn.guid || jQuery.guid++;
 
 		return proxy;
 	},
@@ -1143,7 +1143,7 @@ jQuery.extend({
 				// Get a promise for this deferred
 				// If obj is provided, the promise aspect is added to the object
 				promise: function( obj ) {
-					return typeof obj === "object" ? jQuery.extend( obj, promise ) : promise;
+					return obj != null ? jQuery.extend( obj, promise ) : promise;
 				}
 			},
 			deferred = {};
@@ -1262,7 +1262,7 @@ jQuery.support = (function() {
 	a.style.cssText = "top:1px;float:left;opacity:.5";
 
 	// Can't get basic test support
-	if ( !all || !all.length || !a ) {
+	if ( !all || !all.length ) {
 		return {};
 	}
 
@@ -1513,7 +1513,7 @@ jQuery.extend({
 
 	deletedIds: [],
 
-	// Please use with caution
+	// Remove at next major release (1.9/2.0)
 	uuid: 0,
 
 	// Unique for each copy of jQuery on the page
@@ -1565,7 +1565,7 @@ jQuery.extend({
 			// Only DOM nodes need a new unique ID for each element since their data
 			// ends up in the global cache
 			if ( isNode ) {
-				elem[ internalKey ] = id = jQuery.deletedIds.pop() || ++jQuery.uuid;
+				elem[ internalKey ] = id = jQuery.deletedIds.pop() || jQuery.guid++;
 			} else {
 				id = internalKey;
 			}
@@ -1739,7 +1739,7 @@ jQuery.fn.extend({
 					for ( l = attr.length; i < l; i++ ) {
 						name = attr[i].name;
 
-						if ( name.indexOf( "data-" ) === 0 ) {
+						if ( !name.indexOf( "data-" ) ) {
 							name = jQuery.camelCase( name.substring(5) );
 
 							dataAttr( elem, name, data[ name ] );
@@ -2049,7 +2049,7 @@ jQuery.fn.extend({
 						setClass = " " + elem.className + " ";
 
 						for ( c = 0, cl = classNames.length; c < cl; c++ ) {
-							if ( !~setClass.indexOf( " " + classNames[ c ] + " " ) ) {
+							if ( setClass.indexOf( " " + classNames[ c ] + " " ) < 0 ) {
 								setClass += classNames[ c ] + " ";
 							}
 						}
@@ -2082,7 +2082,7 @@ jQuery.fn.extend({
 					// loop over each item in the removal list
 					for ( c = 0, cl = removes.length; c < cl; c++ ) {
 						// Remove until there is nothing to remove,
-						while ( className.indexOf(" " + removes[ c ] + " ") > -1 ) {
+						while ( className.indexOf(" " + removes[ c ] + " ") >= 0 ) {
 							className = className.replace( " " + removes[ c ] + " " , " " );
 						}
 					}
@@ -2136,7 +2136,7 @@ jQuery.fn.extend({
 			i = 0,
 			l = this.length;
 		for ( ; i < l; i++ ) {
-			if ( this[i].nodeType === 1 && (" " + this[i].className + " ").replace(rclass, " ").indexOf( className ) > -1 ) {
+			if ( this[i].nodeType === 1 && (" " + this[i].className + " ").replace(rclass, " ").indexOf( className ) >= 0 ) {
 				return true;
 			}
 		}
@@ -2314,7 +2314,7 @@ jQuery.extend({
 				return ret;
 
 			} else {
-				elem.setAttribute( name, "" + value );
+				elem.setAttribute( name, value + "" );
 				return value;
 			}
 
@@ -2578,7 +2578,7 @@ if ( !jQuery.support.style ) {
 			return elem.style.cssText.toLowerCase() || undefined;
 		},
 		set: function( elem, value ) {
-			return ( elem.style.cssText = "" + value );
+			return ( elem.style.cssText = value + "" );
 		}
 	};
 }
@@ -2711,6 +2711,7 @@ jQuery.event = {
 				handler: handler,
 				guid: handler.guid,
 				selector: selector,
+				needsContext: selector && jQuery.expr.match.needsContext.test( selector ),
 				namespace: namespaces.join(".")
 			}, handleObjIn );
 
@@ -2946,7 +2947,7 @@ jQuery.event = {
 			}
 			// Note that this is a bare JS function and not a jQuery handler
 			handle = ontype && cur[ ontype ];
-			if ( handle && jQuery.acceptData( cur ) && handle.apply( cur, data ) === false ) {
+			if ( handle && jQuery.acceptData( cur ) && handle.apply && handle.apply( cur, data ) === false ) {
 				event.preventDefault();
 			}
 		}
@@ -2994,7 +2995,7 @@ jQuery.event = {
 		var i, j, cur, ret, selMatch, matched, matches, handleObj, sel, related,
 			handlers = ( (jQuery._data( this, "events" ) || {} )[ event.type ] || []),
 			delegateCount = handlers.delegateCount,
-			args = [].slice.call( arguments ),
+			args = core_slice.call( arguments ),
 			run_all = !event.exclusive && !event.namespace,
 			special = jQuery.event.special[ event.type ] || {},
 			handlerQueue = [];
@@ -3023,7 +3024,9 @@ jQuery.event = {
 						sel = handleObj.selector;
 
 						if ( selMatch[ sel ] === undefined ) {
-							selMatch[ sel ] = jQuery( sel, this ).index( cur ) >= 0;
+							selMatch[ sel ] = handleObj.needsContext ?
+								jQuery( sel, this ).index( cur ) >= 0 :
+								jQuery.find( sel, this, null, [ cur ] ).length;
 						}
 						if ( selMatch[ sel ] ) {
 							matches.push( handleObj );
@@ -3593,7 +3596,7 @@ jQuery.fn.extend({
 	},
 	undelegate: function( selector, types, fn ) {
 		// ( namespace ) or ( selector, types [, fn] )
-		return arguments.length == 1? this.off( selector, "**" ) : this.off( types, selector || "**", fn );
+		return arguments.length === 1 ? this.off( selector, "**" ) : this.off( types, selector || "**", fn );
 	},
 
 	trigger: function( type, data ) {
@@ -3664,14 +3667,13 @@ jQuery.each( ("blur focus focusin focusout load resize scroll unload click dblcl
 });
 /*!

  * Sizzle CSS Selector Engine

- *  Copyright 2012 jQuery Foundation and other contributors

- *  Released under the MIT license

- *  http://sizzlejs.com/

+ * Copyright 2012 jQuery Foundation and other contributors

+ * Released under the MIT license

+ * http://sizzlejs.com/

  */

 (function( window, undefined ) {

 

-var dirruns,

-	cachedruns,

+var cachedruns,

 	assertGetIdNotName,

 	Expr,

 	getText,

@@ -3680,21 +3682,36 @@ var dirruns,
 	compile,

 	sortOrder,

 	hasDuplicate,

+	outermostContext,

 

 	baseHasDuplicate = true,

 	strundefined = "undefined",

 

 	expando = ( "sizcache" + Math.random() ).replace( ".", "" ),

 

+	Token = String,

 	document = window.document,

 	docElem = document.documentElement,

+	dirruns = 0,

 	done = 0,

-	slice = [].slice,

+	pop = [].pop,

 	push = [].push,

+	slice = [].slice,

+	// Use a stripped-down indexOf if a native one is unavailable

+	indexOf = [].indexOf || function( elem ) {

+		var i = 0,

+			len = this.length;

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

+			if ( this[i] === elem ) {

+				return i;

+			}

+		}

+		return -1;

+	},

 

 	// Augment a function for special use by Sizzle

 	markFunction = function( fn, value ) {

-		fn[ expando ] = value || true;

+		fn[ expando ] = value == null || value;

 		return fn;

 	},

 

@@ -3741,7 +3758,8 @@ var dirruns,
 	pseudos = ":(" + characterEncoding + ")(?:\\((?:(['\"])((?:\\\\.|[^\\\\])*?)\\2|([^()[\\]]*|(?:(?:" + attributes + ")|[^:]|\\\\.)*|.*))\\)|)",

 

 	// For matchExpr.POS and matchExpr.needsContext

-	pos = ":(nth|eq|gt|lt|first|last|even|odd)(?:\\(((?:-\\d)?\\d*)\\)|)(?=[^-]|$)",

+	pos = ":(even|odd|eq|gt|lt|nth|first|last)(?:\\(" + whitespace +

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

 

 	// Leading and non-escaped trailing whitespace, capturing some non-whitespace characters preceding the latter

 	rtrim = new RegExp( "^" + whitespace + "+|((?:^|[^\\\\])(?:\\\\.)*)" + whitespace + "+$", "g" ),

@@ -3769,10 +3787,10 @@ var dirruns,
 		"TAG": new RegExp( "^(" + characterEncoding.replace( "w", "w*" ) + ")" ),

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

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

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

+		"POS": new RegExp( pos, "i" ),

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

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

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

-		"POS": new RegExp( pos, "ig" ),

 		// For use in libraries implementing .is()

 		"needsContext": new RegExp( "^" + whitespace + "*[>+~]|" + pos, "i" )

 	},

@@ -3854,7 +3872,8 @@ try {
 	slice.call( docElem.childNodes, 0 )[0].nodeType;

 } catch ( e ) {

 	slice = function( i ) {

-		var elem, results = [];

+		var elem,

+			results = [];

 		for ( ; (elem = this[i]); i++ ) {

 			results.push( elem );

 		}

@@ -3868,14 +3887,14 @@ function Sizzle( selector, context, results, seed ) {
 	var match, elem, xml, m,

 		nodeType = context.nodeType;

 

-	if ( nodeType !== 1 && nodeType !== 9 ) {

-		return [];

-	}

-

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

 		return results;

 	}

 

+	if ( nodeType !== 1 && nodeType !== 9 ) {

+		return [];

+	}

+

 	xml = isXML( context );

 

 	if ( !xml && !seed ) {

@@ -3919,7 +3938,7 @@ function Sizzle( selector, context, results, seed ) {
 	}

 

 	// All others

-	return select( selector, context, results, seed, xml );

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

 }

 

 Sizzle.matches = function( expr, elements ) {

@@ -3946,6 +3965,25 @@ function createButtonPseudo( type ) {
 	};

 }

 

+// Returns a function to use in pseudos for positionals

+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]);

+				}

+			}

+		});

+	});

+}

+

 /**

  * Utility function for retrieving the text value of an array of DOM nodes

  * @param {Array|Element} elem

@@ -3983,7 +4021,7 @@ getText = Sizzle.getText = function( elem ) {
 	return ret;

 };

 

-isXML = Sizzle.isXML = function isXML( elem ) {

+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;

@@ -4011,23 +4049,23 @@ contains = Sizzle.contains = docElem.contains ?
 	};

 

 Sizzle.attr = function( elem, name ) {

-	var attr,

+	var val,

 		xml = isXML( elem );

 

 	if ( !xml ) {

 		name = name.toLowerCase();

 	}

-	if ( Expr.attrHandle[ name ] ) {

-		return Expr.attrHandle[ name ]( elem );

+	if ( (val = Expr.attrHandle[ name ]) ) {

+		return val( elem );

 	}

-	if ( assertAttributes || xml ) {

+	if ( xml || assertAttributes ) {

 		return elem.getAttribute( name );

 	}

-	attr = elem.getAttributeNode( name );

-	return attr ?

+	val = elem.getAttributeNode( name );

+	return val ?

 		typeof elem[ name ] === "boolean" ?

 			elem[ name ] ? name : null :

-			attr.specified ? attr.value : null :

+			val.specified ? val.value : null :

 		null;

 };

 

@@ -4040,11 +4078,6 @@ Expr = Sizzle.selectors = {
 

 	match: matchExpr,

 

-	order: new RegExp( "ID|TAG" +

-		(assertUsableName ? "|NAME" : "") +

-		(assertUsableClassName ? "|CLASS" : "")

-	),

-

 	// IE6/7 return a modified href

 	attrHandle: assertHrefNotNormalized ?

 		{} :

@@ -4105,13 +4138,13 @@ Expr = Sizzle.selectors = {
 				return results;

 			},

 

-		"NAME": function( tag, context ) {

+		"NAME": assertUsableName && function( tag, context ) {

 			if ( typeof context.getElementsByName !== strundefined ) {

 				return context.getElementsByName( name );

 			}

 		},

 

-		"CLASS": function( className, context, xml ) {

+		"CLASS": assertUsableClassName && function( className, context, xml ) {

 			if ( typeof context.getElementsByClassName !== strundefined && !xml ) {

 				return context.getElementsByClassName( className );

 			}

@@ -4140,7 +4173,7 @@ Expr = Sizzle.selectors = {
 		},

 

 		"CHILD": function( match ) {

-			/* matches from matchExpr.CHILD

+			/* matches from matchExpr["CHILD"]

 				1 type (only|nth|...)

 				2 argument (even|odd|\d*|\d*n([+-]\d+)?|...)

 				3 xn-component of xn+y argument ([+-]?\d*n|)

@@ -4170,7 +4203,7 @@ Expr = Sizzle.selectors = {
 			return match;

 		},

 

-		"PSEUDO": function( match, context, xml ) {

+		"PSEUDO": function( match ) {

 			var unquoted, excess;

 			if ( matchExpr["CHILD"].test( match[0] ) ) {

 				return null;

@@ -4182,7 +4215,7 @@ Expr = Sizzle.selectors = {
 				// Only check arguments that contain a pseudo

 				if ( rpseudo.test(unquoted) &&

 					// Get excess from tokenize (recursively)

-					(excess = tokenize( unquoted, context, xml, true )) &&

+					(excess = tokenize( unquoted, true )) &&

 					// advance to the next closing parenthesis

 					(excess = unquoted.indexOf( ")", unquoted.length - excess ) - unquoted.length) ) {

 

@@ -4236,76 +4269,55 @@ Expr = Sizzle.selectors = {
 		},

 

 		"ATTR": function( name, operator, check ) {

-			if ( !operator ) {

-				return function( elem ) {

-					return Sizzle.attr( elem, name ) != null;

-				};

-			}

-

-			return function( elem ) {

-				var result = Sizzle.attr( elem, name ),

-					value = result + "";

+			return function( elem, context ) {

+				var result = Sizzle.attr( elem, name );

 

 				if ( result == null ) {

 					return operator === "!=";

 				}

-

-				switch ( operator ) {

-					case "=":

-						return value === check;

-					case "!=":

-						return value !== check;

-					case "^=":

-						return check && value.indexOf( check ) === 0;

-					case "*=":

-						return check && value.indexOf( check ) > -1;

-					case "$=":

-						return check && value.substr( value.length - check.length ) === check;

-					case "~=":

-						return ( " " + value + " " ).indexOf( check ) > -1;

-					case "|=":

-						return value === check || value.substr( 0, check.length + 1 ) === check + "-";

+				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.substr( result.length - check.length ) === check :

+					operator === "~=" ? ( " " + result + " " ).indexOf( check ) > -1 :

+					operator === "|=" ? result === check || result.substr( 0, check.length + 1 ) === check + "-" :

+					false;

 			};

 		},

 

 		"CHILD": function( type, argument, first, last ) {

 

 			if ( type === "nth" ) {

-				var doneName = done++;

-

 				return function( elem ) {

-					var parent, diff,

-						count = 0,

-						node = elem;

+					var node, diff,

+						parent = elem.parentNode;

 

 					if ( first === 1 && last === 0 ) {

 						return true;

 					}

 

-					parent = elem.parentNode;

-

-					if ( parent && (parent[ expando ] !== doneName || !elem.sizset) ) {

+					if ( parent ) {

+						diff = 0;

 						for ( node = parent.firstChild; node; node = node.nextSibling ) {

 							if ( node.nodeType === 1 ) {

-								node.sizset = ++count;

-								if ( node === elem ) {

+								diff++;

+								if ( elem === node ) {

 									break;

 								}

 							}

 						}

-

-						parent[ expando ] = doneName;

 					}

 

-					diff = elem.sizset - last;

-

-					if ( first === 0 ) {

-						return diff === 0;

-

-					} else {

-						return ( diff % first === 0 && diff / first >= 0 );

-					}

+					// Incorporate the offset (or cast to NaN), then check against cycle size

+					diff -= last;

+					return diff === first || ( diff % first === 0 && diff / first >= 0 );

 				};

 			}

 

@@ -4340,42 +4352,82 @@ Expr = Sizzle.selectors = {
 			};

 		},

 

-		"PSEUDO": function( pseudo, argument, context, xml ) {

+		"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.pseudos[ pseudo.toLowerCase() ];

-

-			if ( !fn ) {

-				Sizzle.error( "unsupported pseudo: " + pseudo );

-			}

+				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 ] ) {

-				if ( fn.length > 1 ) {

-					args = [ pseudo, pseudo, "", argument ];

-					return function( elem ) {

+			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.call( seed, matched[i] );

+							seed[ idx ] = !( matches[ idx ] = matched[i] );

+						}

+					}) :

+					function( elem ) {

 						return fn( elem, 0, args );

 					};

-				}

-				return fn;

 			}

 

-			return fn( argument, context, xml );

+			return fn;

 		}

 	},

 

 	pseudos: {

-		"not": markFunction(function( selector, context, xml ) {

+		"not": markFunction(function( selector ) {

 			// Trim the selector passed to compile

 			// to avoid treating leading and trailing

 			// spaces as combinators

-			var matcher = compile( selector.replace( rtrim, "$1" ), context, xml );

+			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 );

+					return !results.pop();

+				};

+		}),

+

+		"has": markFunction(function( selector ) {

 			return function( elem ) {

-				return !matcher( elem );

+				return Sizzle( selector, elem ).length > 0;

+			};

+		}),

+

+		"contains": markFunction(function( text ) {

+			return function( elem ) {

+				return ( elem.textContent || elem.innerText || getText( elem ) ).indexOf( text ) > -1;

 			};

 		}),

 

@@ -4425,18 +4477,6 @@ Expr = Sizzle.selectors = {
 			return true;

 		},

 

-		"contains": markFunction(function( text ) {

-			return function( elem ) {

-				return ( elem.textContent || elem.innerText || getText( elem ) ).indexOf( text ) > -1;

-			};

-		}),

-

-		"has": markFunction(function( selector ) {

-			return function( elem ) {

-				return Sizzle( selector, elem ).length > 0;

-			};

-		}),

-

 		"header": function( elem ) {

 			return rheader.test( elem.nodeName );

 		},

@@ -4476,51 +4516,48 @@ Expr = Sizzle.selectors = {
 

 		"active": function( elem ) {

 			return elem === elem.ownerDocument.activeElement;

-		}

-	},

-

-	setFilters: {

-		"first": function( elements, argument, not ) {

-			return not ? elements.slice( 1 ) : [ elements[0] ];

 		},

 

-		"last": function( elements, argument, not ) {

-			var elem = elements.pop();

-			return not ? elements : [ elem ];

-		},

+		// Positional types

+		"first": createPositionalPseudo(function( matchIndexes, length, argument ) {

+			return [ 0 ];

+		}),

 

-		"even": function( elements, argument, not ) {

-			var results = [],

-				i = not ? 1 : 0,

-				len = elements.length;

-			for ( ; i < len; i = i + 2 ) {

-				results.push( elements[i] );

-			}

-			return results;

-		},

+		"last": createPositionalPseudo(function( matchIndexes, length, argument ) {

+			return [ length - 1 ];

+		}),

 

-		"odd": function( elements, argument, not ) {

-			var results = [],

-				i = not ? 0 : 1,

-				len = elements.length;

-			for ( ; i < len; i = i + 2 ) {

-				results.push( elements[i] );

+		"eq": createPositionalPseudo(function( matchIndexes, length, argument ) {

+			return [ argument < 0 ? argument + length : argument ];

+		}),

+

+		"even": createPositionalPseudo(function( matchIndexes, length, argument ) {

+			for ( var i = 0; i < length; i += 2 ) {

+				matchIndexes.push( i );

 			}

-			return results;

-		},

+			return matchIndexes;

+		}),

 

-		"lt": function( elements, argument, not ) {

-			return not ? elements.slice( +argument ) : elements.slice( 0, +argument );

-		},

+		"odd": createPositionalPseudo(function( matchIndexes, length, argument ) {

+			for ( var i = 1; i < length; i += 2 ) {

+				matchIndexes.push( i );

+			}

+			return matchIndexes;

+		}),

 

-		"gt": function( elements, argument, not ) {

-			return not ? elements.slice( 0, +argument + 1 ) : elements.slice( +argument + 1 );

-		},

+		"lt": createPositionalPseudo(function( matchIndexes, length, argument ) {

+			for ( var i = argument < 0 ? argument + length : argument; --i >= 0; ) {

+				matchIndexes.push( i );

+			}

+			return matchIndexes;

+		}),

 

-		"eq": function( elements, argument, not ) {

-			var elem = elements.splice( +argument, 1 );

-			return not ? elements : elem;

-		}

+		"gt": createPositionalPseudo(function( matchIndexes, length, argument ) {

+			for ( var i = argument < 0 ? argument + length : argument; ++i < length; ) {

+				matchIndexes.push( i );

+			}

+			return matchIndexes;

+		})

 	}

 };

 

@@ -4642,24 +4679,17 @@ Sizzle.error = function( msg ) {
 	throw new Error( "Syntax error, unrecognized expression: " + msg );

 };

 

-function tokenize( selector, context, xml, parseOnly ) {

-	var matched, match, tokens, type,

-		soFar, groups, group, i,

-		preFilters, filters,

-		checkContext = !xml && context !== document,

-		// Token cache should maintain spaces

-		key = ( checkContext ? "<s>" : "" ) + selector.replace( rtrim, "$1<s>" ),

-		cached = tokenCache[ expando ][ key ];

+function tokenize( selector, parseOnly ) {

+	var matched, match, tokens, type, soFar, groups, preFilters,

+		cached = tokenCache[ expando ][ selector ];

 

 	if ( cached ) {

-		return parseOnly ? 0 : slice.call( cached, 0 );

+		return parseOnly ? 0 : cached.slice( 0 );

 	}

 

 	soFar = selector;

 	groups = [];

-	i = 0;

 	preFilters = Expr.preFilter;

-	filters = Expr.filter;

 

 	while ( soFar ) {

 

@@ -4667,45 +4697,31 @@ function tokenize( selector, context, xml, parseOnly ) {
 		if ( !matched || (match = rcomma.exec( soFar )) ) {

 			if ( match ) {

 				soFar = soFar.slice( match[0].length );

-				tokens.selector = group;

 			}

 			groups.push( tokens = [] );

-			group = "";

-

-			// Need to make sure we're within a narrower context if necessary

-			// Adding a descendant combinator will generate what is needed

-			if ( checkContext ) {

-				soFar = " " + soFar;

-			}

 		}

 

 		matched = false;

 

 		// Combinators

 		if ( (match = rcombinators.exec( soFar )) ) {

-			group += match[0];

-			soFar = soFar.slice( match[0].length );

+			tokens.push( matched = new Token( match.shift() ) );

+			soFar = soFar.slice( matched.length );

 

 			// Cast descendant combinators to space

-			matched = tokens.push({

-				part: match.pop().replace( rtrim, " " ),

-				string: match[0],

-				captures: match

-			});

+			matched.type = match[0].replace( rtrim, " " );

 		}

 

 		// Filters

-		for ( type in filters ) {

+		for ( type in Expr.filter ) {

 			if ( (match = matchExpr[ type ].exec( soFar )) && (!preFilters[ type ] ||

-				( match = preFilters[ type ](match, context, xml) )) ) {

+				// The last two arguments here are (context, xml) for backCompat

+				(match = preFilters[ type ]( match, document, true ))) ) {

 

-				group += match[0];

-				soFar = soFar.slice( match[0].length );

-				matched = tokens.push({

-					part: type,

-					string: match.shift(),

-					captures: match

-				});

+				tokens.push( matched = new Token( match.shift() ) );

+				soFar = soFar.slice( matched.length );

+				matched.type = type;

+				matched.matches = match;

 			}

 		}

 

@@ -4714,11 +4730,6 @@ function tokenize( selector, context, xml, parseOnly ) {
 		}

 	}

 

-	// Attach the full group as a selector

-	if ( group ) {

-		tokens.selector = group;

-	}

-

 	// Return the length of the invalid excess

 	// if we're just parsing

 	// Otherwise, throw an error or return tokens

@@ -4727,43 +4738,33 @@ function tokenize( selector, context, xml, parseOnly ) {
 		soFar ?

 			Sizzle.error( selector ) :

 			// Cache the tokens

-			slice.call( tokenCache(key, groups), 0 );

+			tokenCache( selector, groups ).slice( 0 );

 }

 

-function addCombinator( matcher, combinator, context, xml ) {

+function addCombinator( matcher, combinator, base ) {

 	var dir = combinator.dir,

+		checkNonElements = base && combinator.dir === "parentNode",

 		doneName = done++;

 

-	if ( !matcher ) {

-		// If there is no matcher to check, check against the context

-		matcher = function( elem ) {

-			return elem === context;

-		};

-	}

 	return combinator.first ?

-		function( elem ) {

+		// Check against closest ancestor/preceding element

+		function( elem, context, xml ) {

 			while ( (elem = elem[ dir ]) ) {

-				if ( elem.nodeType === 1 ) {

-					return matcher( elem ) && elem;

+				if ( checkNonElements || elem.nodeType === 1  ) {

+					return matcher( elem, context, xml );

 				}

 			}

 		} :

-		xml ?

-			function( elem ) {

-				while ( (elem = elem[ dir ]) ) {

-					if ( elem.nodeType === 1 ) {

-						if ( matcher( elem ) ) {

-							return elem;

-						}

-					}

-				}

-			} :

-			function( elem ) {

+

+		// Check against all ancestor/preceding elements

+		function( elem, context, xml ) {

+			// We can't set arbitrary data on XML nodes, so they don't benefit from dir caching

+			if ( !xml ) {

 				var cache,

-					dirkey = doneName + "." + dirruns,

-					cachedkey = dirkey + "." + cachedruns;

+					dirkey = dirruns + " " + doneName + " ",

+					cachedkey = dirkey + cachedruns;

 				while ( (elem = elem[ dir ]) ) {

-					if ( elem.nodeType === 1 ) {

+					if ( checkNonElements || elem.nodeType === 1 ) {

 						if ( (cache = elem[ expando ]) === cachedkey ) {

 							return elem.sizset;

 						} else if ( typeof cache === "string" && cache.indexOf(dirkey) === 0 ) {

@@ -4772,7 +4773,7 @@ function addCombinator( matcher, combinator, context, xml ) {
 							}

 						} else {

 							elem[ expando ] = cachedkey;

-							if ( matcher( elem ) ) {

+							if ( matcher( elem, context, xml ) ) {

 								elem.sizset = true;

 								return elem;

 							}

@@ -4780,254 +4781,382 @@ function addCombinator( matcher, combinator, context, xml ) {
 						}

 					}

 				}

-			};

+			} else {

+				while ( (elem = elem[ dir ]) ) {

+					if ( checkNonElements || elem.nodeType === 1 ) {

+						if ( matcher( elem, context, xml ) ) {

+							return elem;

+						}

+					}

+				}

+			}

+		};

 }

 

-function addMatcher( higher, deeper ) {

-	return higher ?

-		function( elem ) {

-			var result = deeper( elem );

-			return result && higher( result === true ? elem : result );

+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;

 		} :

-		deeper;

+		matchers[0];

 }

 

-// ["TAG", ">", "ID", " ", "CLASS"]

-function matcherFromTokens( tokens, context, xml ) {

-	var token, matcher,

-		i = 0;

+function condense( unmatched, map, filter, context, xml ) {

+	var elem,

+		newUnmatched = [],

+		i = 0,

+		len = unmatched.length,

+		mapped = map != null;

 

-	for ( ; (token = tokens[i]); i++ ) {

-		if ( Expr.relative[ token.part ] ) {

-			matcher = addCombinator( matcher, Expr.relative[ token.part ], context, xml );

-		} else {

-			matcher = addMatcher( matcher, Expr.filter[ token.part ].apply(null, token.captures.concat( context, xml )) );

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

+		if ( (elem = unmatched[i]) ) {

+			if ( !filter || filter( elem, context, xml ) ) {

+				newUnmatched.push( elem );

+				if ( mapped ) {

+					map.push( i );

+				}

+			}

 		}

 	}

 

-	return matcher;

+	return newUnmatched;

 }

 

-function matcherFromGroupMatchers( matchers ) {

-	return function( elem ) {

-		var matcher,

-			j = 0;

-		for ( ; (matcher = matchers[j]); j++ ) {

-			if ( matcher(elem) ) {

-				return true;

-			}

+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 ) {

+		// Positional selectors apply to seed elements, so it is invalid to follow them with relative ones

+		if ( seed && postFinder ) {

+			return;

 		}

-		return false;

-	};

-}

 

-compile = Sizzle.compile = function( selector, context, xml ) {

-	var group, i, len,

-		cached = compilerCache[ expando ][ selector ];

+		var i, elem, postFilterIn,

+			preMap = [],

+			postMap = [],

+			preexisting = results.length,

 

-	// Return a cached group function if already generated (context dependent)

-	if ( cached && cached.context === context ) {

-		return cached;

-	}

+			// Get initial elements from seed or context

+			elems = seed || multipleContexts( selector || "*", context.nodeType ? [ context ] : context, [], seed ),

 

-	// Generate a function of recursive functions that can be used to check each element

-	group = tokenize( selector, context, xml );

-	for ( i = 0, len = group.length; i < len; i++ ) {

-		group[i] = matcherFromTokens(group[i], context, xml);

-	}

+			// Prefilter to get matcher input, preserving a map for seed-results synchronization

+			matcherIn = preFilter && ( seed || !selector ) ?

+				condense( elems, preMap, preFilter, context, xml ) :

+				elems,

 

-	// Cache the compiled function

-	cached = compilerCache( selector, matcherFromGroupMatchers(group) );

-	cached.context = context;

-	cached.runs = cached.dirruns = 0;

-	return cached;

-};

+			matcherOut = matcher ?

+				// If we have a postFinder, or filtered seed, or non-seed postFilter or preexisting results,

+				postFinder || ( seed ? preFilter : preexisting || postFilter ) ?

 

-function multipleContexts( selector, contexts, results, seed ) {

-	var i = 0,

-		len = contexts.length;

-	for ( ; i < len; i++ ) {

-		Sizzle( selector, contexts[i], results, seed );

-	}

-}

+					// ...intermediate processing is necessary

+					[] :

 

-function handlePOSGroup( selector, posfilter, argument, contexts, seed, not ) {

-	var results,

-		fn = Expr.setFilters[ posfilter.toLowerCase() ];

+					// ...otherwise use results directly

+					results :

+				matcherIn;

 

-	if ( !fn ) {

-		Sizzle.error( posfilter );

-	}

+		// Find primary matches

+		if ( matcher ) {

+			matcher( matcherIn, matcherOut, context, xml );

+		}

 

-	if ( selector || !(results = seed) ) {

-		multipleContexts( selector || "*", contexts, (results = []), seed );

-	}

+		// Apply postFilter

+		if ( postFilter ) {

+			postFilterIn = condense( matcherOut, postMap );

+			postFilter( postFilterIn, [], context, xml );

 

-	return results.length > 0 ? fn( results, argument, not ) : [];

-}

+			// Un-match failing elements by moving them back to matcherIn

+			i = postFilterIn.length;

+			while ( i-- ) {

+				if ( (elem = postFilterIn[i]) ) {

+					matcherOut[ postMap[i] ] = !(matcherIn[ postMap[i] ] = elem);

+				}

+			}

+		}

 

-function handlePOS( groups, context, results, seed ) {

-	var group, part, j, groupLen, token, selector,

-		anchor, elements, match, matched,

-		lastIndex, currentContexts, not,

-		i = 0,

-		len = groups.length,

-		rpos = matchExpr["POS"],

-		// This is generated here in case matchExpr["POS"] is extended

-		rposgroups = new RegExp( "^" + rpos.source + "(?!" + whitespace + ")", "i" ),

-		// This is for making sure non-participating

-		// matching groups are represented cross-browser (IE6-8)

-		setUndefined = function() {

-			var i = 1,

-				len = arguments.length - 2;

-			for ( ; i < len; i++ ) {

-				if ( arguments[i] === undefined ) {

-					match[i] = undefined;

+		// Keep seed and results synchronized

+		if ( seed ) {

+			// Ignore postFinder because it can't coexist with seed

+			i = preFilter && matcherOut.length;

+			while ( i-- ) {

+				if ( (elem = matcherOut[i]) ) {

+					seed[ preMap[i] ] = !(results[ preMap[i] ] = elem);

 				}

 			}

-		};

+		} 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.call( checkContext, elem ) > -1;

+		}, implicitRelative, true ),

+		matchers = [ function( elem, context, xml ) {

+			return ( !leadingRelative && ( xml || context !== outermostContext ) ) || (

+				(checkContext = context).nodeType ?

+					matchContext( elem, context, xml ) :

+					matchAnyContext( elem, context, xml ) );

+		} ];

 

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

-		group = groups[i];

-		part = "";

-		elements = seed;

-		for ( j = 0, groupLen = group.length; j < groupLen; j++ ) {

-			token = group[j];

-			selector = token.string;

-			if ( token.part === "PSEUDO" ) {

-				// Reset regex index to 0

-				rpos.exec("");

-				anchor = 0;

-				while ( (match = rpos.exec( selector )) ) {

-					matched = true;

-					lastIndex = rpos.lastIndex = match.index + match[0].length;

-					if ( lastIndex > anchor ) {

-						part += selector.slice( anchor, match.index );

-						anchor = lastIndex;

-						currentContexts = [ context ];

-

-						if ( rcombinators.test(part) ) {

-							if ( elements ) {

-								currentContexts = elements;

-							}

-							elements = seed;

-						}

+		if ( (matcher = Expr.relative[ tokens[i].type ]) ) {

+			matchers = [ addCombinator( elementMatcher( matchers ), matcher ) ];

+		} else {

+			// The concatenated values are (context, xml) for backCompat

+			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 && tokens.slice( 0, i - 1 ).join("").replace( rtrim, "$1" ),

+					matcher,

+					i < j && matcherFromTokens( tokens.slice( i, j ) ),

+					j < len && matcherFromTokens( (tokens = tokens.slice( j )) ),

+					j < len && tokens.join("")

+				);

+			}

+			matchers.push( matcher );

+		}

+	}

 

-						if ( (not = rendsWithNot.test( part )) ) {

-							part = part.slice( 0, -5 ).replace( rcombinators, "$&*" );

-							anchor++;

-						}

+	return elementMatcher( matchers );

+}

 

-						if ( match.length > 1 ) {

-							match[0].replace( rposgroups, setUndefined );

+function matcherFromGroupMatchers( elementMatchers, setMatchers ) {

+	var bySet = setMatchers.length > 0,

+		byElement = elementMatchers.length > 0,

+		superMatcher = function( seed, context, xml, results, expandContext ) {

+			var elem, j, matcher,

+				setMatched = [],

+				matchedCount = 0,

+				i = "0",

+				unmatched = seed && [],

+				outermost = expandContext != null,

+				contextBackup = outermostContext,

+				// We must always have either seed elements or context

+				elems = seed || byElement && Expr.find["TAG"]( "*", expandContext && context.parentNode || context ),

+				// Nested matchers should use non-integer dirruns

+				dirrunsUnique = (dirruns += contextBackup == null ? 1 : Math.E);

+

+			if ( outermost ) {

+				outermostContext = context !== document && context;

+				cachedruns = superMatcher.el;

+			}

+

+			// Add elements passing elementMatchers directly to results

+			for ( ; (elem = elems[i]) != null; i++ ) {

+				if ( byElement && elem ) {

+					for ( j = 0; (matcher = elementMatchers[j]); j++ ) {

+						if ( matcher( elem, context, xml ) ) {

+							results.push( elem );

+							break;

 						}

-						elements = handlePOSGroup( part, match[1], match[2], currentContexts, elements, not );

 					}

-					part = "";

+					if ( outermost ) {

+						dirruns = dirrunsUnique;

+						cachedruns = ++superMatcher.el;

+					}

 				}

 

-			}

+				// Track unmatched elements for set filters

+				if ( bySet ) {

+					// They will have gone through all possible matchers

+					if ( (elem = !matcher && elem) ) {

+						matchedCount--;

+					}

 

-			if ( !matched ) {

-				part += selector;

+					// Lengthen the array for every element, matched or not

+					if ( seed ) {

+						unmatched.push( elem );

+					}

+				}

 			}

-			matched = false;

-		}

 

-		if ( part ) {

-			if ( rcombinators.test(part) ) {

-				multipleContexts( part, elements || [ context ], results, seed );

-			} else {

-				Sizzle( part, context, results, seed ? seed.concat(elements) : elements );

-			}

-		} else {

-			push.apply( results, elements );

-		}

-	}

+			// Apply set filters to unmatched elements

+			matchedCount += i;

+			if ( bySet && i !== matchedCount ) {

+				for ( j = 0; (matcher = setMatchers[j]); j++ ) {

+					matcher( unmatched, setMatched, context, xml );

+				}

 

-	// Do not sort if this is a single filter

-	return len === 1 ? results : Sizzle.uniqueSort( results );

-}

+				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 );

+							}

+						}

+					}

 

-function select( selector, context, results, seed, xml ) {

-	// Remove excessive whitespace

-	selector = selector.replace( rtrim, "$1" );

-	var elements, matcher, cached, elem,

-		i, tokens, token, lastToken, findContext, type,

-		match = tokenize( selector, context, xml ),

-		contextNodeType = context.nodeType;

-

-	// POS handling

-	if ( matchExpr["POS"].test(selector) ) {

-		return handlePOS( match, context, results, seed );

-	}

+					// Discard index placeholder values to get only actual matches

+					setMatched = condense( setMatched );

+				}

 

-	if ( seed ) {

-		elements = slice.call( seed, 0 );

+				// Add matches to results

+				push.apply( results, setMatched );

 

-	// To maintain document order, only narrow the

-	// set if there is one group

-	} else if ( match.length === 1 ) {

+				// Seedless set matches succeeding multiple successful matchers stipulate sorting

+				if ( outermost && !seed && setMatched.length > 0 &&

+					( matchedCount + setMatchers.length ) > 1 ) {

 

-		// Take a shortcut and set the context if the root selector is an ID

-		if ( (tokens = slice.call( match[0], 0 )).length > 2 &&

-				(token = tokens[0]).part === "ID" &&

-				contextNodeType === 9 && !xml &&

-				Expr.relative[ tokens[1].part ] ) {

+					Sizzle.uniqueSort( results );

+				}

+			}

 

-			context = Expr.find["ID"]( token.captures[0].replace( rbackslash, "" ), context, xml )[0];

-			if ( !context ) {

-				return results;

+			// Override manipulation of globals by nested matchers

+			if ( outermost ) {

+				dirruns = dirrunsUnique;

+				outermostContext = contextBackup;

 			}

 

-			selector = selector.slice( tokens.shift().string.length );

-		}

+			return unmatched;

+		};

+

+	superMatcher.el = 0;

+	return bySet ?

+		markFunction( superMatcher ) :

+		superMatcher;

+}

 

-		findContext = ( (match = rsibling.exec( tokens[0].string )) && !match.index && context.parentNode ) || context;

+compile = Sizzle.compile = function( selector, group /* Internal Use Only */ ) {

+	var i,

+		setMatchers = [],

+		elementMatchers = [],

+		cached = compilerCache[ expando ][ selector ];

 

-		// Reduce the set if possible

-		lastToken = "";

-		for ( i = tokens.length - 1; i >= 0; i-- ) {

-			token = tokens[i];

-			type = token.part;

-			lastToken = token.string + lastToken;

-			if ( Expr.relative[ type ] ) {

-				break;

+	if ( !cached ) {

+		// Generate a function of recursive functions that can be used to check each element

+		if ( !group ) {

+			group = tokenize( selector );

+		}

+		i = group.length;

+		while ( i-- ) {

+			cached = matcherFromTokens( group[i] );

+			if ( cached[ expando ] ) {

+				setMatchers.push( cached );

+			} else {

+				elementMatchers.push( cached );

 			}

-			if ( Expr.order.test(type) ) {

-				elements = Expr.find[ type ]( token.captures[0].replace( rbackslash, "" ), findContext, xml );

-				if ( elements == null ) {

-					continue;

-				} else {

-					selector = selector.slice( 0, selector.length - lastToken.length ) +

-						lastToken.replace( matchExpr[ type ], "" );

+		}

 

-					if ( !selector ) {

-						push.apply( results, slice.call(elements, 0) );

-					}

+		// Cache the compiled function

+		cached = compilerCache( selector, matcherFromGroupMatchers( elementMatchers, setMatchers ) );

+	}

+	return cached;

+};

 

-					break;

+function multipleContexts( selector, contexts, results, seed ) {

+	var i = 0,

+		len = contexts.length;

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

+		Sizzle( selector, contexts[i], results, seed );

+	}

+	return results;

+}

+

+function select( selector, context, results, seed, xml ) {

+	var i, tokens, token, type, find,

+		match = tokenize( selector ),

+		j = match.length;

+

+	if ( !seed ) {

+		// Try to minimize operations if there is only one group

+		if ( match.length === 1 ) {

+

+			// Take a shortcut and set the context if the root selector is an ID

+			tokens = match[0] = match[0].slice( 0 );

+			if ( tokens.length > 2 && (token = tokens[0]).type === "ID" &&

+					context.nodeType === 9 && !xml &&

+					Expr.relative[ tokens[1].type ] ) {

+

+				context = Expr.find["ID"]( token.matches[0].replace( rbackslash, "" ), context, xml )[0];

+				if ( !context ) {

+					return results;

 				}

+

+				selector = selector.slice( tokens.shift().length );

 			}

-		}

-	}

 

-	// Only loop over the given elements once

-	if ( selector ) {

-		matcher = compile( selector, context, xml );

-		dirruns = matcher.dirruns++;

-		if ( elements == null ) {

-			elements = Expr.find["TAG"]( "*", (rsibling.test( selector ) && context.parentNode) || context );

-		}

+			// Fetch a seed set for right-to-left matching

+			for ( i = matchExpr["POS"].test( selector ) ? -1 : tokens.length - 1; i >= 0; 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( rbackslash, "" ),

+						rsibling.test( tokens[0].type ) && context.parentNode || context,

+						xml

+					)) ) {

+

+						// If seed is empty or no tokens remain, we can return early

+						tokens.splice( i, 1 );

+						selector = seed.length && tokens.join("");

+						if ( !selector ) {

+							push.apply( results, slice.call( seed, 0 ) );

+							return results;

+						}

 

-		for ( i = 0; (elem = elements[i]); i++ ) {

-			cachedruns = matcher.runs++;

-			if ( matcher(elem) ) {

-				results.push( elem );

+						break;

+					}

+				}

 			}

 		}

 	}

 

+	// Compile and execute a filtering function

+	// Provide `match` to avoid retokenization if we modified the selector above

+	compile( selector, match )(

+		seed,

+		context,

+		xml,

+		results,

+		rsibling.test( selector )

+	);

 	return results;

 }

 

@@ -5037,11 +5166,16 @@ if ( document.querySelectorAll ) {
 			oldSelect = select,

 			rescape = /'|\\/g,

 			rattributeQuotes = /\=[\x20\t\r\n\f]*([^'"\]]*)[\x20\t\r\n\f]*\]/g,

-			rbuggyQSA = [],

+

+			// qSa(:focus) reports false when true (Chrome 21),

+			// A support test would require too much code (would include document ready)

+			rbuggyQSA = [":focus"],

+

+			// matchesSelector(:focus) reports false when true (Chrome 21),

 			// matchesSelector(:active) reports false when true (IE9/Opera 11.5)

 			// A support test would require too much code (would include document ready)

 			// just skip matchesSelector for :active

-			rbuggyMatches = [":active"],

+			rbuggyMatches = [ ":active", ":focus" ],

 			matches = docElem.matchesSelector ||

 				docElem.mozMatchesSelector ||

 				docElem.webkitMatchesSelector ||

@@ -5088,44 +5222,46 @@ if ( document.querySelectorAll ) {
 			}

 		});

 

-		rbuggyQSA = rbuggyQSA.length && new RegExp( rbuggyQSA.join("|") );

+		// rbuggyQSA always contains :focus, so no need for a length check

+		rbuggyQSA = /* rbuggyQSA.length && */ new RegExp( rbuggyQSA.join("|") );

 

 		select = function( selector, context, results, seed, xml ) {

 			// Only use querySelectorAll when not filtering,

 			// when this is not xml,

 			// and when no QSA bugs apply

 			if ( !seed && !xml && (!rbuggyQSA || !rbuggyQSA.test( selector )) ) {

-				if ( context.nodeType === 9 ) {

-					try {

-						push.apply( results, slice.call(context.querySelectorAll( selector ), 0) );

-						return results;

-					} catch(qsaError) {}

+				var groups, i,

+					old = true,

+					nid = expando,

+					newContext = context,

+					newSelector = context.nodeType === 9 && 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

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

-					var groups, i, len,

-						old = context.getAttribute("id"),

-						nid = old || expando,

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

-

-					if ( old ) {

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

+				if ( context.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 + "'] ";

 

-					groups = tokenize(selector, context, xml);

-					// Trailing space is unnecessary

-					// There is always a context check

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

-					for ( i = 0, len = groups.length; i < len; i++ ) {

-						groups[i] = nid + groups[i].selector;

+					i = groups.length;

+					while ( i-- ) {

+						groups[i] = nid + groups[i].join("");

 					}

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

+					newSelector = groups.join(",");

+				}

+

+				if ( newSelector ) {

 					try {

 						push.apply( results, slice.call( newContext.querySelectorAll(

-							groups.join(",")

+							newSelector

 						), 0 ) );

 						return results;

 					} catch(qsaError) {

@@ -5150,11 +5286,11 @@ if ( document.querySelectorAll ) {
 				// Gecko does not error, returns false instead

 				try {

 					matches.call( div, "[test!='']:sizzle" );

-					rbuggyMatches.push( matchExpr["PSEUDO"].source, matchExpr["POS"].source, "!=" );

+					rbuggyMatches.push( "!=", pseudos );

 				} catch ( e ) {}

 			});

 

-			// rbuggyMatches always contains :active, so no need for a length check

+			// rbuggyMatches always contains :active and :focus, so no need for a length check

 			rbuggyMatches = /* rbuggyMatches.length && */ new RegExp( rbuggyMatches.join("|") );

 

 			Sizzle.matchesSelector = function( elem, expr ) {

@@ -5183,10 +5319,12 @@ if ( document.querySelectorAll ) {
 }

 

 // Deprecated

-Expr.setFilters["nth"] = Expr.setFilters["eq"];

+Expr.pseudos["nth"] = Expr.pseudos["eq"];

 

 // Back-compat

-Expr.filters = Expr.pseudos;

+function setFilters() {}

+Expr.filters = setFilters.prototype = Expr.pseudos;

+Expr.setFilters = new setFilters();

 

 // Override sizzle attribute retrieval
 Sizzle.attr = jQuery.attr;
@@ -7123,10 +7261,10 @@ function buildParams( prefix, obj, traditional, add ) {
 		add( prefix, obj );
 	}
 }
-var // Document location
-	ajaxLocation,
-	// Document location segments
+var
+	// Document location
 	ajaxLocParts,
+	ajaxLocation,
 
 	rhash = /#.*$/,
 	rheaders = /^(.*?):[ \t]*([^\r\n]*)\r?$/mg, // IE leaves an \r character at EOL
@@ -7643,7 +7781,7 @@ jQuery.extend({
 
 			// Set data for the fake xhr object
 			jqXHR.status = status;
-			jqXHR.statusText = "" + ( nativeStatusText || statusText );
+			jqXHR.statusText = ( nativeStatusText || statusText ) + "";
 
 			// Success/Error
 			if ( isSuccess ) {
@@ -7703,14 +7841,11 @@ jQuery.extend({
 		// Extract dataTypes list
 		s.dataTypes = jQuery.trim( s.dataType || "*" ).toLowerCase().split( core_rspace );
 
-		// Determine if a cross-domain request is in order
+		// A cross-domain request is in order when we have a protocol:host:port mismatch
 		if ( s.crossDomain == null ) {
-			parts = rurl.exec( s.url.toLowerCase() );
-			s.crossDomain = !!( parts &&
-				( parts[ 1 ] != ajaxLocParts[ 1 ] || parts[ 2 ] != ajaxLocParts[ 2 ] ||
-					( parts[ 3 ] || ( parts[ 1 ] === "http:" ? 80 : 443 ) ) !=
-						( ajaxLocParts[ 3 ] || ( ajaxLocParts[ 1 ] === "http:" ? 80 : 443 ) ) )
-			);
+			parts = rurl.exec( s.url.toLowerCase() ) || false;
+			s.crossDomain = parts && ( parts.join(":") + ( parts[ 3 ] ? "" : parts[ 1 ] === "http:" ? 80 : 443 ) ) !==
+				( ajaxLocParts.join(":") + ( ajaxLocParts[ 3 ] ? "" : ajaxLocParts[ 1 ] === "http:" ? 80 : 443 ) );
 		}
 
 		// Convert data if not already a string
@@ -8405,12 +8540,13 @@ var fxNow, timerId,
 	animationPrefilters = [ defaultPrefilter ],
 	tweeners = {
 		"*": [function( prop, value ) {
-			var end, unit, prevScale,
+			var end, unit,
 				tween = this.createTween( prop, value ),
 				parts = rfxnum.exec( value ),
 				target = tween.cur(),
 				start = +target || 0,
-				scale = 1;
+				scale = 1,
+				maxIterations = 20;
 
 			if ( parts ) {
 				end = +parts[2];
@@ -8426,17 +8562,15 @@ var fxNow, timerId,
 					do {
 						// If previous iteration zeroed out, double until we get *something*
 						// Use a string for doubling factor so we don't accidentally see scale as unchanged below
-						prevScale = scale = scale || ".5";
+						scale = scale || ".5";
 
 						// Adjust and apply
 						start = start / scale;
 						jQuery.style( tween.elem, prop, start + unit );
 
-						// Update scale, tolerating zeroes from tween.cur()
-						scale = tween.cur() / target;
-
-					// Stop looping if we've hit the mark or scale is unchanged
-					} while ( scale !== 1 && scale !== prevScale );
+					// Update scale, tolerating zero or NaN from tween.cur()
+					// And breaking the loop if scale is unchanged or perfect, or if we've just had enough
+					} while ( scale !== (scale = tween.cur() / target) && scale !== 1 && --maxIterations );
 				}
 
 				tween.unit = unit;
@@ -9069,7 +9203,8 @@ jQuery.fn.offset = function( options ) {
 			});
 	}
 
-	var box, docElem, body, win, clientTop, clientLeft, scrollTop, scrollLeft, top, left,
+	var docElem, body, win, clientTop, clientLeft, scrollTop, scrollLeft,
+		box = { top: 0, left: 0 },
 		elem = this[ 0 ],
 		doc = elem && elem.ownerDocument;
 
@@ -9083,21 +9218,25 @@ jQuery.fn.offset = function( options ) {
 
 	docElem = doc.documentElement;
 
-	// Make sure we're not dealing with a disconnected DOM node
+	// Make sure it's not a disconnected DOM node
 	if ( !jQuery.contains( docElem, elem ) ) {
-		return { top: 0, left: 0 };
+		return box;
 	}
 
-	box = elem.getBoundingClientRect();
+	// If we don't have gBCR, just use 0,0 rather than error
+	// BlackBerry 5, iOS 3 (original iPhone)
+	if ( typeof elem.getBoundingClientRect !== "undefined" ) {
+		box = elem.getBoundingClientRect();
+	}
 	win = getWindow( doc );
 	clientTop  = docElem.clientTop  || body.clientTop  || 0;
 	clientLeft = docElem.clientLeft || body.clientLeft || 0;
 	scrollTop  = win.pageYOffset || docElem.scrollTop;
 	scrollLeft = win.pageXOffset || docElem.scrollLeft;
-	top  = box.top  + scrollTop  - clientTop;
-	left = box.left + scrollLeft - clientLeft;
-
-	return { top: top, left: left };
+	return {
+		top: box.top  + scrollTop  - clientTop,
+		left: box.left + scrollLeft - clientLeft
+	};
 };
 
 jQuery.offset = {