X-Git-Url: http://git.asbjorn.biz/?a=blobdiff_plain;f=src%2Fjquery%2Fjquery.js;h=f756b67ab78e08f54831061b9e2c51fd20793082;hb=2ef4093cf7f52383dd43bd361864edcda27e5c3c;hp=f942bf4f6fceb3d6f6d3d8a59c2407e50349d6dd;hpb=fd30d7746d1b98b362f796f235805061d63d514f;p=jquery.git

diff --git a/src/jquery/jquery.js b/src/jquery/jquery.js
index f942bf4..b7091e2 100644
--- a/src/jquery/jquery.js
+++ b/src/jquery/jquery.js
@@ -1,7 +1,7 @@
 /*
  * jQuery @VERSION - New Wave Javascript
  *
- * Copyright (c) 2006 John Resig (jquery.com)
+ * Copyright (c) 2007 John Resig (jquery.com)
  * Dual licensed under the MIT (MIT-LICENSE.txt)
  * and GPL (GPL-LICENSE.txt) licenses.
  *
@@ -24,40 +24,10 @@ window.undefined = window.undefined;
  */
 var 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);
-
-	// Make sure that a selection was provided
-	a = a || document;
-	
-	// HANDLE: $(function)
-	// Shortcut for document ready
-	// Safari reports typeof on DOM NodeLists as a function
-	if ( typeof a == "function" && !a.nodeType && a[0] == undefined )
-		return new jQuery(document)[ jQuery.fn.ready ? "ready" : "load" ]( a );
-	
-	// Handle HTML strings
-	if ( typeof a  == "string" ) {
-		// HANDLE: $(html) -> $(array)
-		var m = /^[^<]*(<.+>)[^>]*$/.exec(a);
-		if ( m )
-			a = jQuery.clean( [ m[1] ] );
-		
-		// HANDLE: $(expr)
-		else
-			return new jQuery( c ).find( a );
-	}
 	
-	return this.setArray(
-		// HANDLE: $(array)
-		a.constructor == Array && a ||
-
-		// HANDLE: $(arraylike)
-		// Watch for when an array-like object is passed as the selector
-		(a.jquery || a.length && a != window && !a.nodeType && a[0] != undefined && a[0].nodeType) && jQuery.makeArray( a ) ||
-
-		// HANDLE: $(*)
-		[ a ] );
+	return this.init(a,c);
 };
 
 // Map over the $ in case of overwrite
@@ -77,8 +47,12 @@ var $ = jQuery;
  * (usually consisting of CSS or XPath), which then finds all matching
  * elements.
  *
- * By default, $() looks for DOM elements within the context of the
- * current HTML document.
+ * By default, if no context is specified, $() looks for DOM elements within the context of the
+ * current HTML document. If you do specify a context, such as a DOM
+ * element or jQuery object, the expression will be matched against
+ * the contents of that context.
+ *
+ * See [[DOM/Traversing/Selectors]] for the allowed CSS/XPath syntax for expressions.
  *
  * @example $("div > p")
  * @desc Finds all p elements that are children of a div element.
@@ -103,10 +77,10 @@ var $ = jQuery;
 /**
  * Create DOM elements on-the-fly from the provided String of raw HTML.
  *
- * @example $("<div><p>Hello</p></div>").appendTo("#body")
+ * @example $("<div><p>Hello</p></div>").appendTo("body")
  * @desc Creates a div element (and all of its contents) dynamically, 
- * and appends it to the element with the ID of body. Internally, an
- * element is created and it's innerHTML property set to the given markup.
+ * and appends it to the body element. Internally, an
+ * element is created and its innerHTML property set to the given markup.
  * It is therefore both quite flexible and limited. 
  *
  * @name $
@@ -122,12 +96,7 @@ var $ = jQuery;
  * This function also accepts XML Documents and Window objects
  * as valid arguments (even though they are not DOM Elements).
  *
- * @example $(document).find("div > p")
- * @before <p>one</p> <div><p>two</p></div> <p>three</p>
- * @result [ <p>two</p> ]
- * @desc Same as $("div > p") because the document
- *
- * @example $(document.body).background( "black" );
+ * @example $(document.body).css( "background", "black" );
  * @desc Sets the background color of the page to black.
  *
  * @example $( myForm.elements ).hide()
@@ -143,8 +112,10 @@ var $ = jQuery;
  * A shorthand for $(document).ready(), allowing you to bind a function
  * to be executed when the DOM document has finished loading. This function
  * behaves just like $(document).ready(), in that it should be used to wrap
- * all of the other $() operations on your page. While this function is,
- * technically, chainable - there really isn't much use for chaining against it.
+ * other $() operations on your page that depend on the DOM being ready to be
+ * operated on. While this function is, technically, chainable - there really
+ * isn't much use for chaining against it.
+ *
  * You can have as many $(document).ready events on your page as you like.
  *
  * See ready(Function) for details about the ready event. 
@@ -170,6 +141,48 @@ var $ = jQuery;
 
 jQuery.fn = jQuery.prototype = {
 	/**
+	 * Initialize a new jQuery object
+	 *
+	 * @private
+	 * @name init
+	 * @param String|Function|Element|Array<Element>|jQuery a selector
+	 * @param jQuery|Element|Array<Element> c context
+	 * @cat Core
+	 */
+	init: function(a,c) {
+		// Make sure that a selection was provided
+		a = a || document;
+
+		// HANDLE: $(function)
+		// Shortcut for document ready
+		if ( jQuery.isFunction(a) )
+			return new jQuery(document)[ jQuery.fn.ready ? "ready" : "load" ]( a );
+
+		// Handle HTML strings
+		if ( typeof a  == "string" ) {
+			// HANDLE: $(html) -> $(array)
+			var m = /^[^<]*(<(.|\s)+>)[^>]*$/.exec(a);
+			if ( m )
+				a = jQuery.clean( [ m[1] ] );
+
+			// HANDLE: $(expr)
+			else
+				return new jQuery( c ).find( a );
+		}
+
+		return this.setArray(
+			// HANDLE: $(array)
+			a.constructor == Array && a ||
+
+			// HANDLE: $(arraylike)
+			// Watch for when an array-like object is passed as the selector
+			(a.jquery || a.length && a != window && !a.nodeType && a[0] != undefined && a[0].nodeType) && jQuery.makeArray( a ) ||
+
+			// HANDLE: $(*)
+			[ a ] );
+	},
+	
+	/**
 	 * The current version of jQuery.
 	 *
 	 * @private
@@ -181,7 +194,7 @@ jQuery.fn = jQuery.prototype = {
 	jquery: "@VERSION",
 
 	/**
-	 * The number of elements currently matched.
+	 * The number of elements currently matched. The size function will return the same value.
 	 *
 	 * @example $("img").length;
 	 * @before <img src="test1.jpg"/> <img src="test2.jpg"/>
@@ -194,7 +207,8 @@ jQuery.fn = jQuery.prototype = {
 	 */
 
 	/**
-	 * The number of elements currently matched.
+	 * Get the number of elements currently matched. This returns the same
+	 * number as the 'length' property of the jQuery object.
 	 *
 	 * @example $("img").size();
 	 * @before <img src="test1.jpg"/> <img src="test2.jpg"/>
@@ -211,10 +225,12 @@ jQuery.fn = jQuery.prototype = {
 	length: 0,
 
 	/**
-	 * Access all matched elements. This serves as a backwards-compatible
+	 * Access all matched DOM elements. This serves as a backwards-compatible
 	 * way of accessing all matched elements (other than the jQuery object
 	 * itself, which is, in fact, an array of elements).
 	 *
+	 * It is useful if you need to operate on the DOM elements themselves instead of using built-in jQuery functions.
+	 *
 	 * @example $("img").get();
 	 * @before <img src="test1.jpg"/> <img src="test2.jpg"/>
 	 * @result [ <img src="test1.jpg"/> <img src="test2.jpg"/> ]
@@ -226,12 +242,13 @@ jQuery.fn = jQuery.prototype = {
 	 */
 
 	/**
-	 * Access a single matched element. num is used to access the
-	 * Nth element matched.
+	 * Access a single matched DOM element at a specified index in the matched set.
+	 * This allows you to extract the actual DOM element and operate on it
+	 * directly without necessarily using jQuery functionality on it.
 	 *
 	 * @example $("img").get(0);
 	 * @before <img src="test1.jpg"/> <img src="test2.jpg"/>
-	 * @result [ <img src="test1.jpg"/> ]
+	 * @result <img src="test1.jpg"/>
 	 * @desc Selects all images in the document and returns the first one
 	 *
 	 * @name get
@@ -263,9 +280,9 @@ jQuery.fn = jQuery.prototype = {
 	 * @cat Core
 	 */
 	pushStack: function( a ) {
-		var ret = jQuery(this);
+		var ret = jQuery(a);
 		ret.prevObject = this;
-		return ret.setArray( a );
+		return ret;
 	},
 	
 	/**
@@ -292,11 +309,11 @@ jQuery.fn = jQuery.prototype = {
 	 * Execute a function within the context of every matched element.
 	 * This means that every time the passed-in function is executed
 	 * (which is once for every element matched) the 'this' keyword
-	 * points to the specific element.
+	 * points to the specific DOM element.
 	 *
 	 * Additionally, the function, when executed, is passed a single
 	 * argument representing the position of the element in the matched
-	 * set.
+	 * set (integer, zero-index).
 	 *
 	 * @example $("img").each(function(i){
 	 *   this.src = "test" + i + ".jpg";
@@ -320,17 +337,17 @@ jQuery.fn = jQuery.prototype = {
 	 * Returns -1 if the object wasn't found.
 	 *
 	 * @example $("*").index( $('#foobar')[0] ) 
-	 * @before <div id="foobar"></div><b></b><span id="foo"></span>
+	 * @before <div id="foobar"><b></b><span id="foo"></span></div>
 	 * @result 0
 	 * @desc Returns the index for the element with ID foobar
 	 *
-	 * @example $("*").index( $('#foo')) 
-	 * @before <div id="foobar"></div><b></b><span id="foo"></span>
+	 * @example $("*").index( $('#foo')[0] ) 
+	 * @before <div id="foobar"><b></b><span id="foo"></span></div>
 	 * @result 2
-	 * @desc Returns the index for the element with ID foo
+	 * @desc Returns the index for the element with ID foo within another element
 	 *
-	 * @example $("*").index( $('#bar')) 
-	 * @before <div id="foobar"></div><b></b><span id="foo"></span>
+	 * @example $("*").index( $('#bar')[0] ) 
+	 * @before <div id="foobar"><b></b><span id="foo"></span></div>
 	 * @result -1
 	 * @desc Returns -1, as there is no element with ID bar
 	 *
@@ -352,6 +369,9 @@ jQuery.fn = jQuery.prototype = {
 	 * This method makes it easy to retrieve a property value
 	 * from the first matched element.
 	 *
+	 * If the element does not have an attribute with such a
+ 	 * name, undefined is returned.
+	 *
 	 * @example $("img").attr("src");
 	 * @before <img src="test.jpg"/>
 	 * @result test.jpg
@@ -383,8 +403,6 @@ jQuery.fn = jQuery.prototype = {
 	/**
 	 * Set a single property to a value, on all matched elements.
 	 *
-	 * Can compute values provided as ${formula}, see second example.
-	 *
 	 * Note that you can't set the name property of input elements in IE.
 	 * Use $(html) or .append(html) or .html(html) to create elements
 	 * on the fly including the name property.
@@ -394,11 +412,6 @@ jQuery.fn = jQuery.prototype = {
 	 * @result <img src="test.jpg"/>
 	 * @desc Sets src attribute to all images.
 	 *
-	 * @example $("img").attr("title", "${this.src}");
-	 * @before <img src="test.jpg" />
-	 * @result <img src="test.jpg" title="test.jpg" />
-	 * @desc Sets title attribute from src attribute, a shortcut for attr(String,Function)
-	 *
 	 * @name attr
 	 * @type jQuery
 	 * @param String key The name of the property to set.
@@ -409,17 +422,25 @@ jQuery.fn = jQuery.prototype = {
 	/**
 	 * Set a single property to a computed value, on all matched elements.
 	 *
-	 * Instead of a value, a function is provided, that computes the value.
+	 * Instead of supplying a string value as described
+	 * [[DOM/Attributes#attr.28_key.2C_value_.29|above]],
+	 * a function is provided that computes the value.
 	 *
 	 * @example $("img").attr("title", function() { return this.src });
 	 * @before <img src="test.jpg" />
 	 * @result <img src="test.jpg" title="test.jpg" />
 	 * @desc Sets title attribute from src attribute.
 	 *
+	 * @example $("img").attr("title", function(index) { return this.title + (i + 1); });
+	 * @before <img title="pic" /><img title="pic" /><img title="pic" />
+	 * @result <img title="pic1" /><img title="pic2" /><img title="pic3" />
+	 * @desc Enumerate title attribute.
+	 *
 	 * @name attr
 	 * @type jQuery
 	 * @param String key The name of the property to set.
 	 * @param Function value A function returning the value to set.
+	 * 	 	  Scope: Current element, argument: Index of current element
 	 * @cat DOM/Attributes
 	 */
 	attr: function( key, value, type ) {
@@ -428,19 +449,19 @@ jQuery.fn = jQuery.prototype = {
 		// Look for the case where we're accessing a style value
 		if ( key.constructor == String )
 			if ( value == undefined )
-				return jQuery[ type || "attr" ]( this[0], key );
+				return this.length && jQuery[ type || "attr" ]( this[0], key ) || undefined;
 			else {
 				obj = {};
 				obj[ key ] = value;
 			}
 		
 		// Check to see if we're setting style values
-		return this.each(function(){
+		return this.each(function(index){
 			// Set all the styles
 			for ( var prop in obj )
 				jQuery.attr(
 					type ? this.style : this,
-					prop, jQuery.prop(this, obj[prop], type)
+					prop, jQuery.prop(this, obj[prop], type, index, prop)
 				);
 		});
 	},
@@ -544,12 +565,18 @@ jQuery.fn = jQuery.prototype = {
 	 * @cat DOM/Attributes
 	 */
 	text: function(e) {
-		var type = this.length && this[0].innerText == undefined ?
-			"textContent" : "innerText";
-			
-		return e == undefined ?
-			jQuery.map(this, function(a){ return a[ type ]; }).join('') :
-			this.each(function(){ this[ type ] = e; });
+		if ( typeof e != "object" && e != null )
+			return this.empty().append( document.createTextNode( e ) );
+
+		var t = "";
+		jQuery.each( e || this, function(){
+			jQuery.each( this.childNodes, function(){
+				if ( this.nodeType != 8 )
+					t += this.nodeType != 1 ?
+						this.nodeValue : jQuery.fn.text([ this ]);
+			});
+		});
+		return t;
 	},
 
 	/**
@@ -600,10 +627,13 @@ jQuery.fn = jQuery.prototype = {
 	 */
 	wrap: function() {
 		// The elements to wrap the target around
-		var a = jQuery.clean(arguments);
+		var a, args = arguments;
 
 		// Wrap each of the matched elements individually
 		return this.each(function(){
+			if ( !a )
+				a = jQuery.clean(args, this.ownerDocument);
+
 			// Clone the structure that we're using to wrap
 			var b = a[0].cloneNode(true);
 
@@ -754,12 +784,17 @@ jQuery.fn = jQuery.prototype = {
 	},
 
 	/**
-	 * End the most recent 'destructive' operation, reverting the list of matched elements
-	 * back to its previous state. After an end operation, the list of matched elements will
-	 * revert to the last state of matched elements.
+	 * Revert the most recent 'destructive' operation, changing the set of matched elements
+	 * to its previous state (right before the destructive operation).
 	 *
 	 * If there was no destructive operation before, an empty set is returned.
 	 *
+	 * A 'destructive' operation is any operation that changes the set of
+	 * matched jQuery elements. These functions are: <code>add</code>,
+	 * <code>children</code>, <code>clone</code>, <code>filter</code>,
+	 * <code>find</code>, <code>not</code>, <code>next</code>,
+	 * <code>parent</code>, <code>parents</code>, <code>prev</code> and <code>siblings</code>.
+	 *
 	 * @example $("p").find("span").end();
 	 * @before <p><span>Hello</span>, how are you?</p>
 	 * @result [ <p>...</p> ]
@@ -776,7 +811,7 @@ 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.
 	 *
@@ -795,9 +830,9 @@ jQuery.fn = jQuery.prototype = {
 	 * @cat DOM/Traversing
 	 */
 	find: function(t) {
-		return this.pushStack( jQuery.map( this, function(a){
-			return jQuery.find(t,a);
-		}) );
+		var data = jQuery.map(this, function(a){ return jQuery.find(t,a); });
+		return this.pushStack( /[^+>] [^+>]/.test( t ) || t.indexOf("..") > -1 ?
+			jQuery.unique( data ) : data );
 	},
 
 	/**
@@ -817,9 +852,46 @@ jQuery.fn = jQuery.prototype = {
 	 * @cat DOM/Manipulation
 	 */
 	clone: function(deep) {
-		return this.pushStack( jQuery.map( this, function(a){
-			return a.cloneNode( deep != undefined ? deep : true );
+		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;
 	},
 
 	/**
@@ -864,9 +936,9 @@ jQuery.fn = jQuery.prototype = {
 	 */
 	filter: function(t) {
 		return this.pushStack(
-			t.constructor == Function &&
+			jQuery.isFunction( t ) &&
 			jQuery.grep(this, function(el, index){
-				return t.apply(el, [index])
+				return t.apply(el, [index]);
 			}) ||
 
 			jQuery.multiFilter(t,this) );
@@ -908,6 +980,9 @@ jQuery.fn = jQuery.prototype = {
 	 * of matched elements. This method is used to remove one or more
 	 * elements from a jQuery object.
 	 *
+	 * Please note: the expression cannot use a reference to the
+	 * element name. See the two examples below.
+	 *
 	 * @example $("p").not( $("div p.selected") )
 	 * @before <div><p>Hello</p><p class="selected">Hello Again</p></div>
 	 * @result [ <p>Hello</p> ]
@@ -915,29 +990,33 @@ jQuery.fn = jQuery.prototype = {
 	 *
 	 * @name not
 	 * @type jQuery
-	 * @param Array|jQuery elems A set of elements to remove from the jQuery set of matched elements.
+	 * @param jQuery elems A set of elements to remove from the jQuery set of matched elements.
 	 * @cat DOM/Traversing
 	 */
 	not: function(t) {
 		return this.pushStack(
 			t.constructor == String &&
-			jQuery.multiFilter(t,this,true) ||
+			jQuery.multiFilter(t, this, true) ||
 
-			jQuery.grep(this,function(a){
-					if ( t.constructor == Array || t.jquery )
-						return !jQuery.inArray( t, a );
-					else
-						return a != t;
-			}) );
+			jQuery.grep(this, function(a) {
+				return ( t.constructor == Array || t.jquery )
+					? jQuery.inArray( a, t ) < 0
+					: a != t;
+			})
+		);
 	},
 
 	/**
-	 * Adds the elements matched by the expression to the jQuery object. This
-	 * can be used to concatenate the result sets of two expressions.
+	 * Adds more elements, matched by the given expression,
+	 * to the set of matched elements.
 	 *
 	 * @example $("p").add("span")
-	 * @before <p>Hello</p><p><span>Hello Again</span></p>
-	 * @result [ <p>Hello</p>, <span>Hello Again</span> ]
+	 * @before (HTML) <p>Hello</p><span>Hello Again</span>
+	 * @result (jQuery object matching 2 elements) [ <p>Hello</p>, <span>Hello Again</span> ]
+	 * @desc Compare the above result to the result of <code>$('p')</code>,
+	 * which would just result in <code><nowiki>[ <p>Hello</p> ]</nowiki></code>.
+	 * Using add(), matched elements of <code>$('span')</code> are simply
+	 * added to the returned jQuery-object.
 	 *
 	 * @name add
 	 * @type jQuery
@@ -946,7 +1025,8 @@ jQuery.fn = jQuery.prototype = {
 	 */
 	 
 	/**
-	 * Adds the on the fly created elements to the jQuery object.
+	 * Adds more elements, created on the fly, to the set of
+	 * matched elements.
 	 *
 	 * @example $("p").add("<span>Again</span>")
 	 * @before <p>Hello</p>
@@ -961,15 +1041,13 @@ jQuery.fn = jQuery.prototype = {
 	/**
 	 * Adds one or more Elements to the set of matched elements.
 	 *
-	 * This is used to add a set of Elements to a jQuery object.
-	 *
 	 * @example $("p").add( document.getElementById("a") )
 	 * @before <p>Hello</p><p><span id="a">Hello Again</span></p>
 	 * @result [ <p>Hello</p>, <span id="a">Hello Again</span> ]
 	 *
-	 * @example $("p").add([document.getElementById("a"), document.getElementById("b")])
-	 * @before <p>Hello</p><p><span id="a">Hello Again</span><span id="b">And Again</span></p>
-	 * @result [ <p>Hello</p>, <span id="a">Hello Again</span>, <span id="b">And Again</span> ]
+	 * @example $("p").add( document.forms[0].elements )
+	 * @before <p>Hello</p><p><form><input/><button/></form>
+	 * @result [ <p>Hello</p>, <input/>, <button/> ]
 	 *
 	 * @name add
 	 * @type jQuery
@@ -979,7 +1057,10 @@ jQuery.fn = jQuery.prototype = {
 	add: function(t) {
 		return this.pushStack( jQuery.merge(
 			this.get(),
-			typeof t == "string" ? jQuery(t).get() : t )
+			t.constructor == String ?
+				jQuery(t).get() :
+				t.length != undefined && (!t.nodeName || t.nodeName == "FORM") ?
+					t : [t] )
 		);
 	},
 
@@ -1008,11 +1089,18 @@ jQuery.fn = jQuery.prototype = {
 	 * @cat DOM/Traversing
 	 */
 	is: function(expr) {
-		return expr ? jQuery.filter(expr,this).r.length > 0 : false;
+		return expr ? jQuery.multiFilter(expr,this).length > 0 : false;
 	},
 	
 	/**
-	 * Get the current value of the first matched element.
+	 * Get the content of the value attribute of the first matched element.
+	 *
+	 * Use caution when relying on this function to check the value of
+	 * multiple-select elements and checkboxes in a form. While it will
+	 * still work as intended, it may not accurately represent the value
+	 * the server will receive because these elements may send an array
+	 * of values. For more robust handling of field values, see the
+	 * [http://www.malsup.com/jquery/form/#fields fieldValue function of the Form Plugin].
 	 *
 	 * @example $("input").val();
 	 * @before <input type="text" value="some text"/>
@@ -1024,7 +1112,7 @@ jQuery.fn = jQuery.prototype = {
 	 */
 	
 	/**
-	 * Set the value of every matched element.
+	 * 	Set the value attribute of every matched element.
 	 *
 	 * @example $("input").val("test");
 	 * @before <input type="text" value="some text"/>
@@ -1084,27 +1172,36 @@ jQuery.fn = jQuery.prototype = {
 	 * @cat Core
 	 */
 	domManip: function(args, table, dir, fn){
-		var clone = this.length > 1; 
-		var a = jQuery.clean(args);
-		if ( dir < 0 )
-			a.reverse();
+		var clone = this.length > 1, a; 
 
 		return this.each(function(){
+			if ( !a ) {
+				a = jQuery.clean(args, this.ownerDocument);
+				if ( dir < 0 )
+					a.reverse();
+			}
+
 			var obj = this;
 
-			if ( table && this.nodeName.toUpperCase() == "TABLE" && a[0].nodeName.toUpperCase() == "TR" )
+			if ( table && jQuery.nodeName(this, "table") && jQuery.nodeName(a[0], "tr") )
 				obj = this.getElementsByTagName("tbody")[0] || this.appendChild(document.createElement("tbody"));
 
-			for ( var i = 0, al = a.length; i < al; i++ )
-				fn.apply( obj, [ clone ? a[i].cloneNode(true) : a[i] ] );
-
+			jQuery.each( a, function(){
+				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 ] );
+			});
 		});
 	}
 };
 
 /**
  * Extends the jQuery object itself. Can be used to add functions into
- * the jQuery namespace and to add plugin methods (plugins).
+ * the jQuery namespace and to [[Plugins/Authoring|add plugin methods]] (plugins).
  * 
  * @example jQuery.fn.extend({
  *   check: function() {
@@ -1155,18 +1252,33 @@ 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;
 
 	// 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++])
-		// 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 ( 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;
@@ -1210,10 +1322,43 @@ jQuery.extend({
 	noConflict: function() {
 		if ( jQuery._$ )
 			$ = jQuery._$;
+		return jQuery;
+	},
+
+	// This may seem like some crazy code, but trust me when I say that this
+	// is the only cross-browser way to do this. --John
+	isFunction: function( fn ) {
+		return !!fn && typeof fn != "string" && !fn.nodeName && 
+			fn.constructor != Array && /function/i.test( fn + "" );
+	},
+	
+	// check if an element is in a XML document
+	isXMLDoc: function(elem) {
+		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 ) {
+		return elem.nodeName && elem.nodeName.toUpperCase() == name.toUpperCase();
 	},
 
 	/**
-	 * A generic iterator function, which can be used to seemlessly
+	 * A generic iterator function, which can be used to seamlessly
 	 * iterate over both objects and arrays. This function is not the same
 	 * as $().each() - which is used to iterate, exclusively, over a jQuery
 	 * object. This function can be used to iterate over anything.
@@ -1251,22 +1396,24 @@ jQuery.extend({
 		return obj;
 	},
 	
-	prop: function(elem, value, type){
+	prop: function(elem, value, type, index, prop){
 			// Handle executable functions
-			if ( value.constructor == Function )
-				return value.call( elem );
+			if ( jQuery.isFunction( value ) )
+				value = value.call( elem, [index] );
+				
+			// exclude the following css properties to add px
+			var exclude = /z-?index|font-?weight|opacity|zoom|line-?height/i;
 
 			// Handle passing in a number to a CSS property
-			if ( value.constructor == Number && type == "css" )
-				return value + "px";
-
-			return value;
+			return value && value.constructor == Number && type == "curCSS" && !exclude.test(prop) ?
+				value + "px" :
+				value;
 	},
 
 	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;
 			});
@@ -1274,16 +1421,15 @@ 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(' ') : "";
+				}).join(" ") : "";
 		},
 
 		// internal only, use is(".class")
 		has: function( t, c ) {
-			t = t.className || t;
-			return t && new RegExp("(^|\\s)" + c + "(\\s|$)").test( t );
+			return jQuery.inArray( c, (t.className || t).toString().split(/\s+/) ) > -1;
 		}
 	},
 
@@ -1305,13 +1451,13 @@ jQuery.extend({
 		if ( p == "height" || p == "width" ) {
 			var old = {}, oHeight, oWidth, d = ["Top","Bottom","Right","Left"];
 
-			for ( var i = 0, dl = d.length; i < dl; i++ ) {
-				old["padding" + d[i]] = 0;
-				old["border" + d[i] + "Width"] = 0;
-			}
+			jQuery.each( d, function(){
+				old["padding" + this] = 0;
+				old["border" + this + "Width"] = 0;
+			});
 
 			jQuery.swap( e, old, function() {
-				if (jQuery.css(e,"display") != "none") {
+				if ( jQuery(e).is(':visible') ) {
 					oHeight = e.offsetHeight;
 					oWidth = e.offsetWidth;
 				} else {
@@ -1321,14 +1467,14 @@ jQuery.extend({
 							visibility: "hidden", position: "absolute", display: "block", right: "0", left: "0"
 						}).appendTo(e.parentNode)[0];
 
-					var parPos = jQuery.css(e.parentNode,"position");
-					if ( parPos == "" || parPos == "static" )
+					var parPos = jQuery.css(e.parentNode,"position") || "static";
+					if ( parPos == "static" )
 						e.parentNode.style.position = "relative";
 
 					oHeight = e.clientHeight;
 					oWidth = e.clientWidth;
 
-					if ( parPos == "" || parPos == "static" )
+					if ( parPos == "static" )
 						e.parentNode.style.position = "static";
 
 					e.parentNode.removeChild(e);
@@ -1342,62 +1488,101 @@ 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 == 'opacity' && jQuery.browser.msie)
-			return jQuery.attr(elem.style, 'opacity');
-			
-		if (prop == "float" || prop == "cssFloat")
-		    prop = jQuery.browser.msie ? "styleFloat" : "cssFloat";
+		if (prop.match(/float/i))
+			prop = jQuery.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) || '';
-				});
 
-		} else if (elem.currentStyle) {
+			// 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();});
 			ret = elem.currentStyle[prop] || elem.currentStyle[newProp];
-			
 		}
 
 		return ret;
 	},
 	
-	clean: function(a) {
+	clean: function(a, doc) {
 		var r = [];
+		doc = doc || document;
+
+		jQuery.each( a, function(i,arg){
+			if ( !arg ) return;
 
-		for ( var i = 0, al = a.length; i < al; i++ ) {
-			var arg = a[i];
+			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), div = document.createElement("div"), tb = [];
+				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("<thead") || !s.indexOf("<tbody") || !s.indexOf("<tfoot")) &&
+					!s.indexOf("<leg") &&
+					[1, "<fieldset>", "</fieldset>"] ||
+					
+					s.match(/^<(thead|tbody|tfoot|colg|cap)/) &&
 					[1, "<table>", "</table>"] ||
 					
 					!s.indexOf("<tr") &&
@@ -1407,14 +1592,21 @@ jQuery.extend({
 					(!s.indexOf("<td") || !s.indexOf("<th")) &&
 					[3, "<table><tbody><tr>", "</tr></tbody></table>"] ||
 					
+					!s.indexOf("<col") &&
+					[2, "<table><tbody></tbody><colgroup>", "</colgroup></table>"] ||
+
+					// IE can't serialize <link> and <script> tags normally
+					jQuery.browser.msie &&
+					[1, "div<div>", "</div>"] ||
+					
 					[0,"",""];
 
 				// Go to html and back, then peel off extra wrappers
-				div.innerHTML = wrap[1] + s + wrap[2];
+				div.innerHTML = wrap[1] + arg + wrap[2];
 				
 				// 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 ) {
@@ -1428,71 +1620,74 @@ jQuery.extend({
 						tb = div.childNodes;
 
 					for ( var n = tb.length-1; n >= 0 ; --n )
-						if ( tb[n].nodeName.toUpperCase() == "TBODY" && !tb[n].childNodes.length )
+						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 = div.childNodes;
+				arg = jQuery.makeArray( div.childNodes );
 			}
-			
-			if ( arg[0] == undefined )
+
+			if ( 0 === arg.length && (!jQuery.nodeName(arg, "form") && !jQuery.nodeName(arg, "select")) )
+				return;
+
+			if ( arg[0] == undefined || jQuery.nodeName(arg, "form") || arg.options )
 				r.push( arg );
 			else
 				r = jQuery.merge( r, arg );
 
-		}
+		});
 
 		return r;
 	},
 	
 	attr: function(elem, name, value){
-		var fix = {
-			"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 && 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
-			return elem.filter = elem.filter.replace(/alpha\([^\)]*\)/gi,"") +
-				( value == 1 ? "" : "alpha(opacity=" + value * 100 + ")" );
-
-		} else if ( name == "opacity" && jQuery.browser.msie )
-			return elem.filter ? 
-				parseFloat( elem.filter.match(/alpha\(opacity=(.*)\)/)[1] ) / 100 : 1;
-		
-		// Mozilla doesn't play well with opacity 1
-		if ( name == "opacity" && jQuery.browser.mozilla && value == 1 )
-			value = 0.9999;
+		var fix = jQuery.isXMLDoc(elem) ? {} : jQuery.props;
 
+		// 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 && elem.nodeName && elem.nodeName.toUpperCase() == '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 );
 			return elem.getAttribute( name );
 
+		// 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];
@@ -1511,13 +1706,14 @@ jQuery.extend({
 	 * @cat JavaScript
 	 */
 	trim: function(t){
-		return t.replace(/^\s+|\s+$/g, "");
+		return (t||"").replace(/^\s+|\s+$/g, "");
 	},
 
 	makeArray: function( a ) {
 		var r = [];
 
-		if ( a.constructor != Array )
+		// Need to use typeof to fight Safari childNodes crashes
+		if ( typeof a != "array" )
 			for ( var i = 0, al = a.length; i < al; i++ )
 				r.push( a[i] );
 		else
@@ -1534,40 +1730,66 @@ jQuery.extend({
 	},
 
 	/**
-	 * Merge two arrays together, removing all duplicates.
-	 *
-	 * The new array is: All the results from the first array, followed
-	 * by the unique results from the second array.
+	 * 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 $.merge( [3,2,1], [4,3,2] )
-	 * @result [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.
-	 * @param Array second The second array to merge.
+	 * @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) {
-		var r = [].slice.call( first, 0 );
-
-		// Now check for duplicates between the two arrays
-		// and only add the unique items
-		for ( var i = 0, sl = second.length; i < sl; i++ )
-			// Check for duplicates
-			if ( jQuery.inArray( second[i], r ) == -1 )
-				// The item is unique, add it
-				first.push( second[i] );
+		// We have to loop this way because IE & Opera overwrite the length
+		// expando of getElementsByTagName
+
+		// 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++;
+
+		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;
+	},
+
+	mergeNum: 0,
+
+	/**
 	 * Filter items out of an array, by using a filter function.
 	 *
 	 * The specified function will be passed two arguments: The
@@ -1647,7 +1869,7 @@ 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).
@@ -1660,17 +1882,7 @@ jQuery.extend({
 			}
 		}
 
-		var r = result.length ? [ result[0] ] : [];
-
-		check: for ( var i = 1, rl = result.length; i < rl; i++ ) {
-			for ( var j = 0; j < i; j++ )
-				if ( result[i] == r[j] )
-					continue check;
-
-			r.push( result[i] );
-		}
-
-		return r;
+		return result;
 	}
 });
 
@@ -1699,7 +1911,7 @@ jQuery.extend({
  */
  
 /*
- * Wheather the W3C compliant box model is being used.
+ * Whether the W3C compliant box model is being used.
  *
  * @property
  * @name $.boxModel
@@ -1711,6 +1923,7 @@ new function() {
 
 	// Figure out what browser is being used
 	jQuery.browser = {
+		version: (b.match(/.+(?:rv|it|ra|ie)[\/: ]([\d.]+)/) || [])[1],
 		safari: /webkit/.test(b),
 		opera: /opera/.test(b),
 		msie: /msie/.test(b) && !/opera/.test(b),
@@ -1719,13 +1932,32 @@ new function() {
 
 	// Check to see if the W3C box model is being used
 	jQuery.boxModel = !jQuery.browser.msie || document.compatMode == "CSS1Compat";
+
+	jQuery.styleFloat = jQuery.browser.msie ? "styleFloat" : "cssFloat";
+
+	jQuery.props = {
+		"for": "htmlFor",
+		"class": "className",
+		"float": jQuery.styleFloat,
+		cssFloat: jQuery.styleFloat,
+		styleFloat: jQuery.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
  * set of elements.
  *
- * Can be filtered with an optional expressions.
+ * You may use an optional expression to filter the set of parent elements that will match.
  *
  * @example $("p").parent()
  * @before <div><p>Hello</p><p>Hello</p></div>
@@ -1747,7 +1979,7 @@ new function() {
  * Get a set of elements containing the unique ancestors of the matched
  * set of elements (except for the root element).
  *
- * Can be filtered with an optional expressions.
+ * The matched elements can be filtered with an optional expression.
  *
  * @example $("span").parents()
  * @before <html><body><div><p><span>Hello</span></p><span>Hello Again</span></div></body></html>
@@ -1769,9 +2001,10 @@ new function() {
  * Get a set of elements containing the unique next siblings of each of the
  * matched set of elements.
  *
- * It only returns the very next sibling, not all next siblings.
+ * It only returns the very next sibling for each element, not all
+ * next siblings.
  *
- * Can be filtered with an optional expressions.
+ * You may provide an optional expression to filter the match.
  *
  * @example $("p").next()
  * @before <p>Hello</p><p>Hello Again</p><div><span>And Again</span></div>
@@ -1793,9 +2026,9 @@ new function() {
  * Get a set of elements containing the unique previous siblings of each of the
  * matched set of elements.
  *
- * Can be filtered with an optional expressions.
+ * Use an optional expression to filter the matched set.
  *
- * It only returns the immediately previous sibling, not all previous siblings.
+ * 	Only the immediately previous sibling is returned, not all previous siblings.
  *
  * @example $("p").prev()
  * @before <p>Hello</p><div><span>Hello Again</span></div><p>And Again</p>
@@ -1839,7 +2072,8 @@ new function() {
  * Get a set of elements containing all of the unique children of each of the
  * matched set of elements.
  *
- * Can be filtered with an optional expressions.
+ * This set can be filtered with an optional expression that will cause
+ * only elements matching the selector to be collected.
  *
  * @example $("div").children()
  * @before <p>Hello</p><div><span>Hello Again</span></div><p>And Again</p>
@@ -1868,7 +2102,7 @@ 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) );
 	};
 });
 
@@ -2175,7 +2409,7 @@ jQuery.each( [ "eq", "lt", "gt", "contains" ], function(i,n){
  *
  * @name width
  * @type jQuery
- * @param Number|String val Set the CSS property to the specified value.
+ * @param String|Number val Set the CSS property to the specified value.
  * @cat CSS
  */
  
@@ -2192,7 +2426,7 @@ jQuery.each( [ "eq", "lt", "gt", "contains" ], function(i,n){
  */
 
 /**
- * Set the CSS width of every matched element. If no explicit unit
+ * Set the CSS height of every matched element. If no explicit unit
  * was specified (like 'em' or '%') then "px" is added to the width.
  *
  * @example $("p").height(20);
@@ -2205,7 +2439,7 @@ jQuery.each( [ "eq", "lt", "gt", "contains" ], function(i,n){
  *
  * @name height
  * @type jQuery
- * @param Number|String val Set the CSS property to the specified value.
+ * @param String|Number val Set the CSS property to the specified value.
  * @cat CSS
  */