X-Git-Url: http://git.asbjorn.biz/?a=blobdiff_plain;f=src%2Fjquery%2Fjquery.js;h=8089e4e6b11bc95065ffd490d6f91dd5531c842b;hb=b6d920cf05fae3dcfe515166013ce39411ac5e16;hp=76ef152a21ec6eac3c6e9efb5189823696956ff1;hpb=67c640bb206d0c8b16042c0981fb25540ee47bdf;p=jquery.git

diff --git a/src/jquery/jquery.js b/src/jquery/jquery.js
index 76ef152..8089e4e 100644
--- a/src/jquery/jquery.js
+++ b/src/jquery/jquery.js
@@ -9,9 +9,6 @@
  * $Rev$
  */
 
-// Global undefined variable
-window.undefined = window.undefined;
-
 /**
  * Create a new jQuery Object
  *
@@ -22,9 +19,9 @@ window.undefined = window.undefined;
  * @param jQuery|Element|Array<Element> c context
  * @cat Core
  */
-var jQuery = function(a,c) {
+window.jQuery = function(a,c) {
 	// If the context is global, return a new object
-	if ( window == this )
+	if ( window == this || !this.init )
 		return new jQuery(a,c);
 	
 	return this.init(a,c);
@@ -35,7 +32,7 @@ if ( typeof $ != "undefined" )
 	jQuery._$ = $;
 	
 // Map the jQuery namespace to the '$' one
-var $ = jQuery;
+window.$ = jQuery;
 
 /**
  * This function accepts a string containing a CSS or
@@ -166,12 +163,8 @@ jQuery.fn = jQuery.prototype = {
 				a = jQuery.clean( [ m[1] ] );
 
 			// HANDLE: $(expr)
-			else {
-				var r = new jQuery( c ).find( a );
-				r.selector = a;
-				r.context = c;
-				return r;
-			}
+			else
+				return new jQuery( c ).find( a );
 		}
 
 		return this.setArray(
@@ -305,7 +298,7 @@ jQuery.fn = jQuery.prototype = {
 	 */
 	setArray: function( a ) {
 		this.length = 0;
-		[].push.apply( this, a );
+		Array.prototype.push.apply( this, a );
 		return this;
 	},
 
@@ -569,7 +562,7 @@ jQuery.fn = jQuery.prototype = {
 	 * @cat DOM/Attributes
 	 */
 	text: function(e) {
-		if ( typeof e == "string" )
+		if ( typeof e != "object" && e != null )
 			return this.empty().append( document.createTextNode( e ) );
 
 		var t = "";
@@ -815,7 +808,7 @@ jQuery.fn = jQuery.prototype = {
 
 	/**
 	 * Searches for all elements that match the specified expression.
-	 
+	 * 
 	 * This method is a good way to find additional descendant
 	 * elements with which to process.
 	 *
@@ -834,9 +827,9 @@ jQuery.fn = jQuery.prototype = {
 	 * @cat DOM/Traversing
 	 */
 	find: function(t) {
-		return this.pushStack( jQuery.unique( jQuery.map( this, function(a){
-			return jQuery.find(t,a);
-		}) ), t );
+		var data = jQuery.map(this, function(a){ return jQuery.find(t,a); });
+		return this.pushStack( /[^+>] [^+>]/.test( t ) || t.indexOf("..") > -1 ?
+			jQuery.unique( data ) : data );
 	},
 
 	/**
@@ -856,11 +849,46 @@ jQuery.fn = jQuery.prototype = {
 	 * @cat DOM/Manipulation
 	 */
 	clone: function(deep) {
-		return this.pushStack( jQuery.map( this, function(a){
-			a = a.cloneNode( deep != undefined ? deep : true );
-			a.$events = null; // drop $events expando to avoid firing incorrect events
-			return a;
+		deep = deep != undefined ? deep : true;
+		var $this = this.add(this.find("*"));
+		if (jQuery.browser.msie) {
+			// Need to remove events on the element and its descendants
+			$this.each(function() {
+				this._$events = {};
+				for (var type in this.$events)
+					this._$events[type] = jQuery.extend({},this.$events[type]);
+			}).unbind();
+		}
+
+		// Do the clone
+		var r = this.pushStack( jQuery.map( this, function(a){
+			return a.cloneNode( deep );
 		}) );
+
+		if (jQuery.browser.msie) {
+			$this.each(function() {
+				// Add the events back to the original and its descendants
+				var events = this._$events;
+				for (var type in events)
+					for (var handler in events[type])
+						jQuery.event.add(this, type, events[type][handler], events[type][handler].data);
+				this._$events = null;
+			});
+		}
+
+		// copy form values over
+		if (deep) {
+			var inputs = r.add(r.find('*')).filter('select,input[@type=checkbox]');
+			$this.filter('select,input[@type=checkbox]').each(function(i) {
+				if (this.selectedIndex)
+					inputs[i].selectedIndex = this.selectedIndex;
+				if (this.checked)
+					inputs[i].checked = true;
+			});
+		}
+
+		// Return the cloned set
+		return r;
 	},
 
 	/**
@@ -907,7 +935,7 @@ jQuery.fn = jQuery.prototype = {
 		return this.pushStack(
 			jQuery.isFunction( t ) &&
 			jQuery.grep(this, function(el, index){
-				return t.apply(el, [index])
+				return t.apply(el, [index]);
 			}) ||
 
 			jQuery.multiFilter(t,this) );
@@ -1129,6 +1157,10 @@ jQuery.fn = jQuery.prototype = {
 			( this.length ? this[0].innerHTML : null ) :
 			this.empty().append( val );
 	},
+
+	slice: function() {
+		return this.pushStack( Array.prototype.slice.apply( this, arguments ) );
+	},
 	
 	/**
 	 * @private
@@ -1156,9 +1188,14 @@ jQuery.fn = jQuery.prototype = {
 				obj = this.getElementsByTagName("tbody")[0] || this.appendChild(document.createElement("tbody"));
 
 			jQuery.each( a, function(){
-				fn.apply( obj, [ clone ? this.cloneNode(true) : this ] );
+				if ( jQuery.nodeName(this, "script") ) {
+					if ( this.src )
+						jQuery.ajax({ url: this.src, async: false, dataType: "script" });
+					else
+						jQuery.globalEval( this.text || this.textContent || this.innerHTML || "" );
+				} else
+					fn.apply( obj, [ clone ? this.cloneNode(true) : this ] );
 			});
-
 		});
 	}
 };
@@ -1216,17 +1253,39 @@ jQuery.fn = jQuery.prototype = {
  */
 jQuery.extend = jQuery.fn.extend = function() {
 	// copy reference to target object
-	var target = arguments[0], a = 1;
+	var target = arguments[0] || {}, a = 1, al = arguments.length, deep = false;
+
+	// Handle a deep copy situation
+	if ( target.constructor == Boolean ) {
+		deep = target;
+		target = arguments[1] || {};
+	}
 
 	// extend jQuery itself if only one argument is passed
-	if ( arguments.length == 1 ) {
+	if ( al == 1 ) {
 		target = this;
 		a = 0;
 	}
+
 	var prop;
-	while ( (prop = arguments[a++]) != null )
-		// Extend the base object
-		for ( var i in prop ) target[i] = prop[i];
+
+	for ( ; a < al; a++ )
+		// Only deal with non-null/undefined values
+		if ( (prop = arguments[a]) != null )
+			// Extend the base object
+			for ( var i in prop ) {
+				// Prevent never-ending loop
+				if ( target == prop[i] )
+					continue;
+
+				// Recurse if we're merging object values
+				if ( deep && typeof prop[i] == 'object' && target[i] )
+					jQuery.extend( target[i], prop[i] );
+
+				// Don't bring in undefined values
+				else if ( prop[i] != undefined )
+					target[i] = prop[i];
+			}
 
 	// Return the modified object
 	return target;
@@ -1282,7 +1341,23 @@ jQuery.extend({
 	
 	// check if an element is in a XML document
 	isXMLDoc: function(elem) {
-		return elem.tagName && elem.ownerDocument && !elem.ownerDocument.body;
+		return elem.documentElement && !elem.body ||
+			elem.tagName && elem.ownerDocument && !elem.ownerDocument.body;
+	},
+
+	// Evalulates a script in a global context
+	// Evaluates Async. in Safari 2 :-(
+	globalEval: function( data ) {
+		data = jQuery.trim( data );
+		if ( data ) {
+			if ( window.execScript )
+				window.execScript( data );
+			else if ( jQuery.browser.safari )
+				// safari doesn't provide a synchronous global eval
+				window.setTimeout( data, 0 );
+			else
+				eval.call( window, data );
+		}
 	},
 
 	nodeName: function( elem, name ) {
@@ -1319,12 +1394,24 @@ jQuery.extend({
 	 */
 	// args is for internal usage only
 	each: function( obj, fn, args ) {
-		if ( obj.length == undefined )
-			for ( var i in obj )
-				fn.apply( obj[i], args || [i, obj[i]] );
-		else
-			for ( var i = 0, ol = obj.length; i < ol; i++ )
-				if ( fn.apply( obj[i], args || [i, obj[i]] ) === false ) break;
+		if ( args ) {
+			if ( obj.length == undefined )
+				for ( var i in obj )
+					fn.apply( obj[i], args );
+			else
+				for ( var i = 0, ol = obj.length; i < ol; i++ )
+					if ( fn.apply( obj[i], args ) === false ) break;
+
+		// A special, fast, case for the most common use of each
+		} else {
+			if ( obj.length == undefined )
+				for ( var i in obj )
+					fn.call( obj[i], i, obj[i] );
+			else
+				for ( var i = 0, ol = obj.length, val = obj[0]; 
+					i < ol && fn.call(val,i,val) !== false; val = obj[++i] );
+		}
+
 		return obj;
 	},
 	
@@ -1345,7 +1432,7 @@ jQuery.extend({
 	className: {
 		// internal only, use addClass("class")
 		add: function( elem, c ){
-			jQuery.each( c.split(/\s+/), function(i, cur){
+			jQuery.each( (c || "").split(/\s+/), function(i, cur){
 				if ( !jQuery.className.has( elem.className, cur ) )
 					elem.className += ( elem.className ? " " : "" ) + cur;
 			});
@@ -1353,7 +1440,7 @@ jQuery.extend({
 
 		// internal only, use removeClass("class")
 		remove: function( elem, c ){
-			elem.className = c ?
+			elem.className = c != undefined ?
 				jQuery.grep( elem.className.split(/\s+/), function(cur){
 					return !jQuery.className.has( c, cur );	
 				}).join(" ") : "";
@@ -1420,36 +1507,68 @@ jQuery.extend({
 	},
 
 	curCSS: function(elem, prop, force) {
-		var ret;
+		var ret, stack = [], swap = [];
+
+		// A helper method for determining if an element's values are broken
+		function color(a){
+			if ( !jQuery.browser.safari )
+				return false;
+
+			var ret = document.defaultView.getComputedStyle(a,null);
+			return !ret || ret.getPropertyValue("color") == "";
+		}
 
 		if (prop == "opacity" && jQuery.browser.msie) {
 			ret = jQuery.attr(elem.style, "opacity");
 			return ret == "" ? "1" : ret;
 		}
 		
-		if (prop == "float" || prop == "cssFloat")
-			prop = jQuery.browser.msie ? "styleFloat" : "cssFloat";
+		if (prop.match(/float/i))
+			prop = styleFloat;
 
 		if (!force && elem.style[prop])
 			ret = elem.style[prop];
 
 		else if (document.defaultView && document.defaultView.getComputedStyle) {
 
-			if (prop == "cssFloat" || prop == "styleFloat")
+			if (prop.match(/float/i))
 				prop = "float";
 
 			prop = prop.replace(/([A-Z])/g,"-$1").toLowerCase();
 			var cur = document.defaultView.getComputedStyle(elem, null);
 
-			if ( cur )
+			if ( cur && !color(elem) )
 				ret = cur.getPropertyValue(prop);
-			else if ( prop == "display" )
-				ret = "none";
-			else
-				jQuery.swap(elem, { display: "block" }, function() {
-				    var c = document.defaultView.getComputedStyle(this, "");
-				    ret = c && c.getPropertyValue(prop) || "";
-				});
+
+			// If the element isn't reporting its values properly in Safari
+			// then some display: none elements are involved
+			else {
+				// Locate all of the parent display: none elements
+				for ( var a = elem; a && color(a); a = a.parentNode )
+					stack.unshift(a);
+
+				// Go through and make them visible, but in reverse
+				// (It would be better if we knew the exact display type that they had)
+				for ( a = 0; a < stack.length; a++ )
+					if ( color(stack[a]) ) {
+						swap[a] = stack[a].style.display;
+						stack[a].style.display = "block";
+					}
+
+				// Since we flip the display style, we have to handle that
+				// one special, otherwise get the value
+				ret = prop == "display" && swap[stack.length-1] != null ?
+					"none" :
+					document.defaultView.getComputedStyle(elem,null).getPropertyValue(prop) || "";
+
+				// Finally, revert the display styles back
+				for ( a = 0; a < swap.length; a++ )
+					if ( swap[a] != null )
+						stack[a].style.display = swap[a];
+			}
+
+			if ( prop == "opacity" && ret == "" )
+				ret = "1";
 
 		} else if (elem.currentStyle) {
 			var newProp = prop.replace(/\-(\w)/g,function(m,c){return c.toUpperCase();});
@@ -1469,20 +1588,20 @@ jQuery.extend({
 			if ( arg.constructor == Number )
 				arg = arg.toString();
 			
-			 // Convert html string into DOM nodes
+			// Convert html string into DOM nodes
 			if ( typeof arg == "string" ) {
 				// Trim whitespace, otherwise indexOf won't work as expected
 				var s = jQuery.trim(arg).toLowerCase(), div = doc.createElement("div"), tb = [];
 
 				var wrap =
-					 // option or optgroup
+					// option or optgroup
 					!s.indexOf("<opt") &&
 					[1, "<select>", "</select>"] ||
 					
 					!s.indexOf("<leg") &&
 					[1, "<fieldset>", "</fieldset>"] ||
 					
-					(!s.indexOf("<thead") || !s.indexOf("<tbody") || !s.indexOf("<tfoot") || !s.indexOf("<colg")) &&
+					s.match(/^<(thead|tbody|tfoot|colg|cap)/) &&
 					[1, "<table>", "</table>"] ||
 					
 					!s.indexOf("<tr") &&
@@ -1493,7 +1612,11 @@ jQuery.extend({
 					[3, "<table><tbody><tr>", "</tr></tbody></table>"] ||
 					
 					!s.indexOf("<col") &&
-					[2, "<table><colgroup>", "</colgroup></table>"] ||
+					[2, "<table><tbody></tbody><colgroup>", "</colgroup></table>"] ||
+
+					// IE can't serialize <link> and <script> tags normally
+					jQuery.browser.msie &&
+					[1, "div<div>", "</div>"] ||
 					
 					[0,"",""];
 
@@ -1502,7 +1625,7 @@ jQuery.extend({
 				
 				// Move to the right depth
 				while ( wrap[0]-- )
-					div = div.firstChild;
+					div = div.lastChild;
 				
 				// Remove IE's autoinserted <tbody> from table fragments
 				if ( jQuery.browser.msie ) {
@@ -1518,16 +1641,20 @@ jQuery.extend({
 					for ( var n = tb.length-1; n >= 0 ; --n )
 						if ( jQuery.nodeName(tb[n], "tbody") && !tb[n].childNodes.length )
 							tb[n].parentNode.removeChild(tb[n]);
-					
+	
+					// IE completely kills leading whitespace when innerHTML is used	
+					if ( /^\s/.test(arg) )	
+						div.insertBefore( doc.createTextNode( arg.match(/^\s*/)[0] ), div.firstChild );
+
 				}
 				
 				arg = jQuery.makeArray( div.childNodes );
 			}
 
-			if ( 0 === arg.length && !jQuery(arg).is("form, select") )
+			if ( 0 === arg.length && (!jQuery.nodeName(arg, "form") && !jQuery.nodeName(arg, "select")) )
 				return;
 
-			if ( arg[0] == undefined || jQuery(arg).is("form, select") )
+			if ( arg[0] == undefined || jQuery.nodeName(arg, "form") || arg.options )
 				r.push( arg );
 			else
 				r = jQuery.merge( r, arg );
@@ -1538,46 +1665,26 @@ jQuery.extend({
 	},
 	
 	attr: function(elem, name, value){
-		var fix = jQuery.isXMLDoc(elem) ? {} : {
-			"for": "htmlFor",
-			"class": "className",
-			"float": jQuery.browser.msie ? "styleFloat" : "cssFloat",
-			cssFloat: jQuery.browser.msie ? "styleFloat" : "cssFloat",
-			innerHTML: "innerHTML",
-			className: "className",
-			value: "value",
-			disabled: "disabled",
-			checked: "checked",
-			readonly: "readOnly",
-			selected: "selected"
-		};
-		
-		// IE actually uses filters for opacity ... elem is actually elem.style
-		if ( name == "opacity" && jQuery.browser.msie ) {
-			if ( value != undefined ) {
-				// IE has trouble with opacity if it does not have layout
-				// Force it by setting the zoom level
-				elem.zoom = 1; 
-
-				// Set the alpha filter to set the opacity
-				elem.filter = (elem.filter || "").replace(/alpha\([^)]*\)/,"") +
-					(parseFloat(value).toString() == "NaN" ? "" : "alpha(opacity=" + value * 100 + ")");
-			}
+		var fix = jQuery.isXMLDoc(elem) ? {} : jQuery.props;
 
-			return elem.filter ? 
-				(parseFloat( elem.filter.match(/opacity=([^)]*)/)[1] ) / 100).toString() : "";
-		}
+		// Safari mis-reports the default selected property of a hidden option
+		// Accessing the parent's selectedIndex property fixes it
+		if ( name == "selected" && jQuery.browser.safari )
+			elem.parentNode.selectedIndex;
 		
 		// Certain attributes only work when accessed via the old DOM 0 way
 		if ( fix[name] ) {
 			if ( value != undefined ) elem[fix[name]] = value;
 			return elem[fix[name]];
+		} else if ( jQuery.browser.msie && name == "style" )
+			return jQuery.attr( elem.style, "cssText", value );
 
-		} else if ( value == undefined && jQuery.browser.msie && jQuery.nodeName(elem, "form") && (name == "action" || name == "method") )
+		else if ( value == undefined && jQuery.browser.msie && jQuery.nodeName(elem, "form") && (name == "action" || name == "method") )
 			return elem.getAttributeNode(name).nodeValue;
 
 		// IE elem.getAttribute passes even for style
 		else if ( elem.tagName ) {
+
 			if ( value != undefined ) elem.setAttribute( name, value );
 			if ( jQuery.browser.msie && /href|src/.test(name) && !jQuery.isXMLDoc(elem) ) 
 				return elem.getAttribute( name, 2 );
@@ -1585,6 +1692,21 @@ jQuery.extend({
 
 		// elem is actually elem.style ... set the style
 		} else {
+			// IE actually uses filters for opacity
+			if ( name == "opacity" && jQuery.browser.msie ) {
+				if ( value != undefined ) {
+					// IE has trouble with opacity if it does not have layout
+					// Force it by setting the zoom level
+					elem.zoom = 1; 
+	
+					// Set the alpha filter to set the opacity
+					elem.filter = (elem.filter || "").replace(/alpha\([^)]*\)/,"") +
+						(parseFloat(value).toString() == "NaN" ? "" : "alpha(opacity=" + value * 100 + ")");
+				}
+	
+				return elem.filter ? 
+					(parseFloat( elem.filter.match(/opacity=([^)]*)/)[1] ) / 100).toString() : "";
+			}
 			name = name.replace(/-([a-z])/ig,function(z,b){return b.toUpperCase();});
 			if ( value != undefined ) elem[name] = value;
 			return elem[name];
@@ -1603,7 +1725,7 @@ jQuery.extend({
 	 * @cat JavaScript
 	 */
 	trim: function(t){
-		return t.replace(/^\s+|\s+$/g, "");
+		return (t||"").replace(/^\s+|\s+$/g, "");
 	},
 
 	makeArray: function( a ) {
@@ -1627,42 +1749,59 @@ jQuery.extend({
 	},
 
 	/**
-	 * Merge two arrays together, removing all duplicates.
-	 *
-	 * The result is the altered first argument with
-	 * the unique elements from the second array added.
+	 * Merge two arrays together by concatenating them.
 	 *
 	 * @example $.merge( [0,1,2], [2,3,4] )
-	 * @result [0,1,2,3,4]
-	 * @desc Merges two arrays, removing the duplicate 2
-	 *
-	 * @example var array = [3,2,1];
-	 * $.merge( array, [4,3,2] )
-	 * @result array == [3,2,1,4]
-	 * @desc Merges two arrays, removing the duplicates 3 and 2
+	 * @result [0,1,2,2,3,4]
+	 * @desc Merges two arrays.
 	 *
 	 * @name $.merge
 	 * @type Array
-	 * @param Array first The first array to merge, the unique elements of second added.
-	 * @param Array second The second array to merge into the first, unaltered.
+	 * @param Array first The first array to merge, the elements of second are added.
+	 * @param Array second The second array to append to the first, unaltered.
 	 * @cat JavaScript
 	 */
 	merge: function(first, second) {
 		// We have to loop this way because IE & Opera overwrite the length
 		// expando of getElementsByTagName
-		for ( var i = 0; second[i]; i++ )
-			first.push(second[i]);
+
+		// Also, we need to make sure that the correct elements are being returned
+		// (IE returns comment nodes in a '*' query)
+		if ( jQuery.browser.msie ) {
+			for ( var i = 0; second[i]; i++ )
+				if ( second[i].nodeType != 8 )
+					first.push(second[i]);
+		} else
+			for ( var i = 0; second[i]; i++ )
+				first.push(second[i]);
+
 		return first;
 	},
 
+	/**
+	 * Reduce an array (of jQuery objects only) to its unique elements.
+	 *
+	 * @example $.unique( [x1, x2, x3, x2, x3] )
+	 * @result [x1, x2, x3]
+	 * @desc Reduces the arrays of jQuery objects to unique elements by removing the duplicates of x2 and x3
+	 *
+	 * @name $.unique
+	 * @type Array
+	 * @param Array array The array to reduce to its unique jQuery objects.
+	 * @cat JavaScript
+	 */
 	unique: function(first) {
 		var r = [], num = jQuery.mergeNum++;
 
-		for ( var i = 0, fl = first.length; i < fl; i++ )
-			if ( num != first[i].mergeNum ) {
-				first[i].mergeNum = num;
-				r.push(first[i]);
-			}
+		try {
+			for ( var i = 0, fl = first.length; i < fl; i++ )
+				if ( num != first[i].mergeNum ) {
+					first[i].mergeNum = num;
+					r.push(first[i]);
+				}
+		} catch(e) {
+			r = first;
+		}
 
 		return r;
 	},
@@ -1749,7 +1888,7 @@ jQuery.extend({
 		if ( typeof fn == "string" )
 			fn = new Function("a","return " + fn);
 
-		var result = [], r = [];
+		var result = [];
 
 		// Go through the array, translating each of the items to their
 		// new value (or values).
@@ -1798,21 +1937,41 @@ jQuery.extend({
  * @type Boolean
  * @cat JavaScript
  */
-new function() {
-	var b = navigator.userAgent.toLowerCase();
-
-	// Figure out what browser is being used
-	jQuery.browser = {
-		version: b.match(/.+[xiae][\/ ]([\d.]+)/)[1],
-		safari: /webkit/.test(b),
-		opera: /opera/.test(b),
-		msie: /msie/.test(b) && !/opera/.test(b),
-		mozilla: /mozilla/.test(b) && !/(compatible|webkit)/.test(b)
-	};
+var userAgent = navigator.userAgent.toLowerCase();
+
+// Figure out what browser is being used
+jQuery.browser = {
+	version: (userAgent.match(/.+(?:rv|it|ra|ie)[\/: ]([\d.]+)/) || [])[1],
+	safari: /webkit/.test(userAgent),
+	opera: /opera/.test(userAgent),
+	msie: /msie/.test(userAgent) && !/opera/.test(userAgent),
+	mozilla: /mozilla/.test(userAgent) && !/(compatible|webkit)/.test(userAgent)
+};
 
+var styleFloat = jQuery.browser.msie ? "styleFloat" : "cssFloat";
+	
+jQuery.extend({
 	// Check to see if the W3C box model is being used
-	jQuery.boxModel = !jQuery.browser.msie || document.compatMode == "CSS1Compat";
-};
+	boxModel: !jQuery.browser.msie || document.compatMode == "CSS1Compat",
+	
+	styleFloat: jQuery.browser.msie ? "styleFloat" : "cssFloat",
+	
+	props: {
+		"for": "htmlFor",
+		"class": "className",
+		"float": styleFloat,
+		cssFloat: styleFloat,
+		styleFloat: styleFloat,
+		innerHTML: "innerHTML",
+		className: "className",
+		value: "value",
+		disabled: "disabled",
+		checked: "checked",
+		readonly: "readOnly",
+		selected: "selected",
+		maxlength: "maxLength"
+	}
+});
 
 /**
  * Get a set of elements containing the unique parents of the matched
@@ -1963,7 +2122,7 @@ jQuery.each({
 		var ret = jQuery.map(this,n);
 		if ( a && typeof a == "string" )
 			ret = jQuery.multiFilter(a,ret);
-		return this.pushStack( ret );
+		return this.pushStack( jQuery.unique(ret) );
 	};
 });