Fixed bug with parents/siblings, etc.

[jquery.git] / jquery / jquery.js

/*
 * jQuery - New Wave Javascript
 *
 * Copyright (c) 2006 John Resig (jquery.com)
 * Licensed under the MIT License:
 *   http://www.opensource.org/licenses/mit-license.php
 *
 * $Date$
 * $Rev$
 */

// Global undefined variable
window.undefined = window.undefined;

/**
 * Create a new jQuery Object
 * @constructor
 */
function jQuery(a,c) {

        // Initalize the extra macro functions
        if ( !jQuery.initDone ) jQuery.init();

        // Shortcut for document ready (because $(document).each() is silly)
        if ( a && a.constructor == Function && jQuery.fn.ready )
                return jQuery(document).ready(a);

        // Make sure t hat a selection was provided
        a = a || jQuery.context || document;

        /*
         * Handle support for overriding other $() functions. Way too many libraries
         * provide this function to simply ignore it and overwrite it.
         */
        /*
        // Check to see if this is a possible collision case
        if ( jQuery._$ && !c && a.constructor == String && 
      
                // Make sure that the expression is a colliding one
                !/[^a-zA-Z0-9_-]/.test(a) &&
        
                // and that there are no elements that match it
                // (this is the one truly ambiguous case)
                !document.getElementsByTagName(a).length )

                        // Use the default method, in case it works some voodoo
                        return jQuery._$( a );
        */

        // Watch for when a jQuery object is passed as the selector
        if ( a.jquery )
                return a;

        // Watch for when a jQuery object is passed at the context
        if ( c && c.jquery )
                return jQuery(c.get()).find(a);
        
        // If the context is global, return a new object
        if ( window == this )
                return new jQuery(a,c);

        // Handle HTML strings
        var m = /^[^<]*(<.+>)[^>]*$/.exec(a);
        if ( m ) a = jQuery.clean( [ m[1] ] );

        // Watch for when an array is passed in
        this.get( a.constructor == Array || a.length && !a.nodeType && a[0] != undefined && a[0].nodeType ?
                // Assume that it is an array of DOM Elements
                jQuery.merge( a, [] ) :

                // Find the matching elements and save them for later
                jQuery.find( a, c ) );

        var fn = arguments[ arguments.length - 1 ];
        if ( fn && fn.constructor == Function )
                this.each(fn);
}

// Map over the $ in case of overwrite
if ( $ )
        jQuery._$ = $;

// Map the jQuery namespace to the '$' one
var $ = jQuery;

jQuery.fn = jQuery.prototype = {
        /**
         * The current SVN version of jQuery.
         *
         * @private
         * @property
         * @name jquery
         * @type String
         */
        jquery: "$Rev$",
        
        /**
         * The number of elements currently matched.
         *
         * @example $("img").length;
         * @before <img src="test1.jpg"/> <img src="test2.jpg"/>
         * @result 2
         *
         * @property
         * @name length
         * @type Number
         */
        
        /**
         * The number of elements currently matched.
         *
         * @example $("img").size();
         * @before <img src="test1.jpg"/> <img src="test2.jpg"/>
         * @result 2
         *
         * @name size
         * @type Number
         */
        size: function() {
                return this.length;
        },
        
        /**
         * Access all matched 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).
         *
         * @example $("img").get();
         * @before <img src="test1.jpg"/> <img src="test2.jpg"/>
         * @result [ <img src="test1.jpg"/> <img src="test2.jpg"/> ]
         *
         * @name get
         * @type Array<Element>
         */
         
        /**
         * Access a single matched element. <tt>num</tt> is used to access the 
         * <tt>num</tt>th element matched.
         *
         * @example $("img").get(1);
         * @before <img src="test1.jpg"/> <img src="test2.jpg"/>
         * @result [ <img src="test1.jpg"/> ]
         *
         * @name get
         * @type Element
         * @param Number num Access the element in the <tt>num</tt>th position.
         */
         
        /**
         * Set the jQuery object to an array of elements.
         *
         * @example $("img").get([ document.body ]);
         * @result $("img").get() == [ document.body ]
         *
         * @private
         * @name get
         * @type jQuery
         * @param Elements elems An array of elements
         */
        get: function( num ) {
                // Watch for when an array (of elements) is passed in
                if ( num && num.constructor == Array ) {

                        // Use a tricky hack to make the jQuery object
                        // look and feel like an array
                        this.length = 0;
                        [].push.apply( this, num );
                        
                        return this;
                } else
                        return num == undefined ?

                                // Return a 'clean' array
                                jQuery.map( this, function(a){ return a } ) :

                                // Return just the object
                                this[num];
        },

        /**
         * 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.
         *
         * Additionally, the function, when executed, is passed a single
         * argument representing the position of the element in the matched
         * set.
         *
         * @example $("img").each(function(){ this.src = "test.jpg"; });
         * @before <img/> <img/>
         * @result <img src="test.jpg"/> <img src="test.jpg"/>
         *
         * @name each
         * @type jQuery
         * @param Function fn A function to execute
         */
        each: function( fn, args ) {
                // Iterate through all of the matched elements
                for ( var i = 0; i < this.length; i++ )
                
                        // Execute the function within the context of each element
                        fn.apply( this[i], args || [i] );
                
                return this;
        },
        
        /**
         * Access a property on the first matched element.
         * This method makes it easy to retreive a property value
         * from the first matched element.
         *
         * @example $("img").attr("src");
         * @before <img src="test.jpg"/>
         * @result test.jpg
         *
         * @name attr
         * @type Object
         * @param String name The name of the property to access.
         */
         
        /**
         * Set a hash of key/value object properties to all matched elements.
         * This serves as the best way to set a large number of properties
         * on all matched elements.
         *
         * @example $("img").attr({ src: "test.jpg", alt: "Test Image" });
         * @before <img/>
         * @result <img src="test.jpg" alt="Test Image"/>
         *
         * @name attr
         * @type jQuery
         * @param Hash prop A set of key/value pairs to set as object properties.
         */
         
        /**
         * Set a single property to a value, on all matched elements.
         *
         * @example $("img").attr("src","test.jpg");
         * @before <img/>
         * @result <img src="test.jpg"/>
         *
         * @name attr
         * @type jQuery
         * @param String key The name of the property to set.
         * @param Object value The value to set the property to.
         */
        attr: function( key, value, type ) {
                // Check to see if we're setting style values
                return key.constructor != String || value ?
                        this.each(function(){
                                // See if we're setting a hash of styles
                                if ( value == undefined )
                                        // Set all the styles
                                        for ( var prop in key )
                                                jQuery.attr(
                                                        type ? this.style : this,
                                                        prop, key[prop]
                                                );
                                
                                // See if we're setting a single key/value style
                                else
                                        jQuery.attr(
                                                type ? this.style : this,
                                                key, value
                                        );
                        }) :
                        
                        // Look for the case where we're accessing a style value
                        jQuery[ type || "attr" ]( this[0], key );
        },
        
        /**
         * Access a style property on the first matched element.
         * This method makes it easy to retreive a style property value
         * from the first matched element.
         *
         * @example $("p").css("red");
         * @before <p style="color:red;">Test Paragraph.</p>
         * @result red
         *
         * @name css
         * @type Object
         * @param String name The name of the property to access.
         */
         
        /**
         * Set a hash of key/value style properties to all matched elements.
         * This serves as the best way to set a large number of style properties
         * on all matched elements.
         *
         * @example $("p").css({ color: "red", background: "blue" });
         * @before <p>Test Paragraph.</p>
         * @result <p style="color:red; background:blue;">Test Paragraph.</p>
         *
         * @name css
         * @type jQuery
         * @param Hash prop A set of key/value pairs to set as style properties.
         */
         
        /**
         * Set a single style property to a value, on all matched elements.
         *
         * @example $("p").css("color","red");
         * @before <p>Test Paragraph.</p>
         * @result <p style="color:red;">Test Paragraph.</p>
         *
         * @name css
         * @type jQuery
         * @param String key The name of the property to set.
         * @param Object value The value to set the property to.
         */
        css: function( key, value ) {
                return this.attr( key, value, "curCSS" );
        },
        
        /**
         * Retreive the text contents of all matched elements. The result is
         * a string that contains the combined text contents of all matched
         * elements. This method works on both HTML and XML documents.
         *
         * @example $("p").text();
         * @before <p>Test Paragraph.</p>
         * @result Test Paragraph.
         *
         * @name text
         * @type String
         */
        text: function(e) {
                e = e || this;
                var t = "";
                for ( var j = 0; j < e.length; j++ ) {
                        var r = e[j].childNodes;
                        for ( var i = 0; i < r.length; i++ )
                                t += r[i].nodeType != 1 ?
                                        r[i].nodeValue : jQuery.fn.text([ r[i] ]);
                }
                return t;
        },
        
        /**
         * Wrap all matched elements with a structure of other elements.
         * This wrapping process is most useful for injecting additional
         * stucture into a document, without ruining the original semantic
         * qualities of a document.
         *
         * The way that is works is that it goes through the first element argument
         * provided and finds the deepest element within the structure - it is that
         * element that will en-wrap everything else.
         *
         * @example $("p").wrap("<div class='wrap'></div>");
         * @before <p>Test Paragraph.</p>
         * @result <div class='wrap'><p>Test Paragraph.</p></div>
         *
         * @name wrap
         * @type jQuery
         * @any String html A string of HTML, that will be created on the fly and wrapped around the target.
         * @any Element elem A DOM element that will be wrapped.
         * @any Array<Element> elems An array of elements, the first of which will be wrapped.
         * @any Object obj Any object, converted to a string, then a text node.
         */
        wrap: function() {
                // The elements to wrap the target around
                var a = jQuery.clean(arguments);
                
                // Wrap each of the matched elements individually
                return this.each(function(){
                        // Clone the structure that we're using to wrap
                        var b = a[0].cloneNode(true);
                        
                        // Insert it before the element to be wrapped
                        this.parentNode.insertBefore( b, this );
                        
                        // Find he deepest point in the wrap structure
                        while ( b.firstChild )
                                b = b.firstChild;
                        
                        // Move the matched element to within the wrap structure
                        b.appendChild( this );
                });
        },
        
        /**
         * Append any number of elements to the inside of all matched elements.
         * This operation is similar to doing an <tt>appendChild</tt> to all the 
         * specified elements, adding them into the document.
         * 
         * @example $("p").append("<b>Hello</b>");
         * @before <p>I would like to say: </p>
         * @result <p>I would like to say: <b>Hello</b></p>
         *
         * @name append
         * @type jQuery
         * @any String html A string of HTML, that will be created on the fly and appended to the target.
         * @any Element elem A DOM element that will be appended.
         * @any Array<Element> elems An array of elements, all of which will be appended.
         * @any Object obj Any object, converted to a string, then a text node.
         */
        append: function() {
                return this.domManip(arguments, true, 1, function(a){
                        this.appendChild( a );
                });
        },
        
        /**
         * Prepend any number of elements to the inside of all matched elements.
         * This operation is the best way to insert a set of elements inside, at the 
         * beginning, of all the matched element.
         * 
         * @example $("p").prepend("<b>Hello</b>");
         * @before <p>, how are you?</p>
         * @result <p><b>Hello</b>, how are you?</p>
         *
         * @name prepend
         * @type jQuery
         * @any String html A string of HTML, that will be created on the fly and prepended to the target.
         * @any Element elem A DOM element that will be prepended.
         * @any Array<Element> elems An array of elements, all of which will be prepended.
         * @any Object obj Any object, converted to a string, then a text node.
         */
        prepend: function() {
                return this.domManip(arguments, true, -1, function(a){
                        this.insertBefore( a, this.firstChild );
                });
        },
        
        /**
         * Insert any number of elements before each of the matched elements.
         * 
         * @example $("p").before("<b>Hello</b>");
         * @before <p>how are you?</p>
         * @result <b>Hello</b><p>how are you?</p>
         *
         * @name before
         * @type jQuery
         * @any String html A string of HTML, that will be created on the fly and inserted.
         * @any Element elem A DOM element that will beinserted.
         * @any Array<Element> elems An array of elements, all of which will be inserted.
         * @any Object obj Any object, converted to a string, then a text node.
         */
        before: function() {
                return this.domManip(arguments, false, 1, function(a){
                        this.parentNode.insertBefore( a, this );
                });
        },
        
        /**
         * Insert any number of elements after each of the matched elements.
         * 
         * @example $("p").after("<p>I'm doing fine.</p>");
         * @before <p>How are you?</p>
         * @result <p>How are you?</p><p>I'm doing fine.</p>
         *
         * @name after
         * @type jQuery
         * @any String html A string of HTML, that will be created on the fly and inserted.
         * @any Element elem A DOM element that will beinserted.
         * @any Array<Element> elems An array of elements, all of which will be inserted.
         * @any Object obj Any object, converted to a string, then a text node.
         */
        after: function() {
                return this.domManip(arguments, false, -1, function(a){
                        this.parentNode.insertBefore( a, this.nextSibling );
                });
        },
        
        /**
         * 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.
         *
         * @example $("p").find("span").end();
         * @before <p><span>Hello</span>, how are you?</p>
         * @result $("p").find("span").end() == [ <p>...</p> ]
         *
         * @name end
         * @type jQuery
         */
        end: function() {
                return this.get( this.stack.pop() );
        },
        
        /**
         * Searches for all elements that match the specified expression.
         * This method is the optimal way of finding additional descendant
         * elements with which to process.
         *
         * All searching is done using a jQuery expression. The expression can be 
         * written using CSS 1-3 Selector syntax, or basic XPath.
         *
         * @example $("p").find("span");
         * @before <p><span>Hello</span>, how are you?</p>
         * @result $("p").find("span") == [ <span>Hello</span> ]
         *
         * @name find
         * @type jQuery
         * @param String expr An expression to search with.
         */
        find: function(t) {
                return this.pushStack( jQuery.map( this, function(a){
                        return jQuery.find(t,a);
                }), arguments );
        },
        
        /**
         * Removes all elements from the set of matched elements that do not 
         * match the specified expression. This method is used to narrow down
         * the results of a search.
         *
         * All searching is done using a jQuery expression. The expression
         * can be written using CSS 1-3 Selector syntax, or basic XPath.
         * 
         * @example $("p").filter(".selected")
         * @before <p class="selected">Hello</p><p>How are you?</p>
         * @result $("p").filter(".selected") == [ <p class="selected">Hello</p> ]
         *
         * @name filter
         * @type jQuery
         * @param String expr An expression to search with.
         */

        /**
         * Removes all elements from the set of matched elements that do not
         * match at least one of the expressions passed to the function. This 
         * method is used when you want to filter the set of matched elements 
         * through more than one expression.
         *
         * Elements will be retained in the jQuery object if they match at
         * least one of the expressions passed.
         *
         * @example $("p").filter([".selected", ":first"])
         * @before <p>Hello</p><p>Hello Again</p><p class="selected">And Again</p>
         * @result $("p").filter([".selected", ":first"]) == [ <p>Hello</p>, <p class="selected">And Again</p> ]
         *
         * @name filter
         * @type jQuery
         * @param Array<String> exprs A set of expressions to evaluate against
         */
        filter: function(t) {
                return this.pushStack(
                        t.constructor == Array &&
                        jQuery.map(this,function(a){
                                for ( var i = 0; i < t.length; i++ )
                                        if ( jQuery.filter(t[i],[a]).r.length )
                                                return a;
                        }) ||

                        t.constructor == Boolean &&
                        ( t ? this.get() : [] ) ||

                        t.constructor == Function &&
                        jQuery.grep( this, t ) ||

                        jQuery.filter(t,this).r, arguments );
        },
        
        /**
         * Removes the specified Element from the set of matched elements. This
         * method is used to remove a single Element from a jQuery object.
         *
         * @example $("p").not( document.getElementById("selected") )
         * @before <p>Hello</p><p id="selected">Hello Again</p>
         * @result [ <p>Hello</p> ]
         *
         * @name not
         * @type jQuery
         * @param Element el An element to remove from the set
         */

        /**
         * Removes elements matching the specified expression from the set
         * of matched elements. This method is used to remove one or more
         * elements from a jQuery object.
         * 
         * @example $("p").not("#selected")
         * @before <p>Hello</p><p id="selected">Hello Again</p>
         * @result [ <p>Hello</p> ]
         *
         * @name not
         * @type jQuery
         * @param String expr An expression with which to remove matching elements
         */
        not: function(t) {
                return this.pushStack( t.constructor == String ?
                        jQuery.filter(t,this,false).r :
                        jQuery.grep(this,function(a){ return a != t; }), arguments );
        },

        /**
         * Adds the elements matched by the expression to the jQuery object. This
         * can be used to concatenate the result sets of two expressions.
         *
         * @example $("p").add("span")
         * @before <p>Hello</p><p><span>Hello Again</span></p>
         * @result [ <p>Hello</p>, <span>Hello Again</span> ]
         *
         * @name add
         * @type jQuery
         * @param String expr An expression whose matched elements are added
         */

        /**
         * Adds each of the Elements in the array 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"), 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> ]
         *
         * @name add
         * @type jQuery
         * @param Array<Element> els An array of Elements to add
         */

        /**
         * Adds a single Element to the set of matched elements. This is used to
         * add a single Element 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> ]
         *
         * @name add
         * @type jQuery
         * @param Element el An Element to add
         */
        add: function(t) {
                return this.pushStack( jQuery.merge( this, t.constructor == String ?
                        jQuery.find(t) : t.constructor == Array ? t : [t] ), arguments );
        },
        
        /**
         * A wrapper function for each() to be used by append and prepend.
         * Handles cases where you're trying to modify the inner contents of
         * a table, when you actually need to work with the tbody.
         *
         * @member jQuery
         * @param {String} expr The expression with which to filter
         * @type Boolean
         */
        is: function(expr) {
                return expr ? jQuery.filter(expr,this).r.length > 0 : this.length > 0;
        },
        
        /**
         * 
         *
         * @private
         * @name domManip
         * @param Array args
         * @param Boolean table
         * @param Number int
         * @param Function fn The function doing the DOM manipulation.
         * @type jQuery
         */
        domManip: function(args, table, dir, fn){
                var clone = this.size() > 1;
                var a = jQuery.clean(args);
                
                return this.each(function(){
                        var obj = this;
                        
                        if ( table && this.nodeName == "TABLE" ) {
                                var tbody = this.getElementsByTagName("tbody");

                                if ( !tbody.length ) {
                                        obj = document.createElement("tbody");
                                        this.appendChild( obj );
                                } else
                                        obj = tbody[0];
                        }
                        //alert( obj );
                        for ( var i = ( dir < 0 ? a.length - 1 : 0 );
                                i != ( dir < 0 ? dir : a.length ); i += dir ) {
                                        fn.apply( obj, [ clone ? a[i].cloneNode(true) : a[i] ] );
                                        //alert( fn );
                        }
                });
        },
        
        /**
         * 
         *
         * @private
         * @name pushStack
         * @param Array a
         * @param Array args
         * @type jQuery
         */
        pushStack: function(a,args) {
                var fn = args && args[args.length-1];

                if ( !fn || fn.constructor != Function ) {
                        if ( !this.stack ) this.stack = [];
                        this.stack.push( this.get() );
                        this.get( a );
                } else {
                        var old = this.get();
                        this.get( a );
                        if ( fn.constructor == Function )
                                return this.each( fn );
                        this.get( old );
                }

                return this;
        }
};

jQuery.extend = jQuery.fn.extend = function(obj,prop) {
        if ( !prop ) { prop = obj; obj = this; }
        for ( var i in prop ) obj[i] = prop[i];
        return obj;
};

jQuery.extend({
        init: function(){
                jQuery.initDone = true;
                
                for ( var i in jQuery.macros.axis ) new function(){
                        var t = jQuery.macros.axis[i];

                        jQuery.fn[ i ] = function(a) {
                                var ret = jQuery.map(this,t);
                                if ( a && a.constructor == String )
                                        ret = jQuery.filter(a,ret).r;
                                return this.pushStack( ret, arguments );
                        };
                };
        
                // appendTo, prependTo, beforeTo, afterTo
                
                for ( var i = 0; i < jQuery.macros.to.length; i++ ) new function(){
                        var n = jQuery.macros.to[i];
                        jQuery.fn[ n + "To" ] = function(){
                                var a = arguments;
                                return this.each(function(){
                                        for ( var i = 0; i < a.length; i++ )
                                                $(a[i])[n]( this );
                                });
                        };
                };
                
                for ( var i in jQuery.macros.each ) new function() {
                        var n = jQuery.macros.each[i];
                        jQuery.fn[ i ] = function() {
                                return this.each( n, arguments );
                        };
                };
                
                for ( var i in jQuery.macros.attr ) new function() {
                        var n = jQuery.macros.attr[i] || i;
                        jQuery.fn[ i ] = function(h) {
                                return h == undefined ?
                                        this.length ? this[0][n] : null :
                                        this.attr( n, h );
                        };
                };
        
                for ( var i = 0; i < jQuery.macros.css.length; i++ ) new function() {
                        var n = jQuery.macros.css[i];
                        jQuery.fn[ i ] = function(h) {
                                return h == undefined ?
                                        ( this.length ? jQuery.css( this[0], n ) : null ) :
                                        this.css( n, h );
                        };
                };
        
        },
        
        className: {
                add: function(o,c){
                        if (jQuery.className.has(o,c)) return;
                        o.className += ( o.className ? " " : "" ) + c;
                },
                remove: function(o,c){
                        o.className = !c ? "" :
                                o.className.replace(
                                        new RegExp("(^|\\s*\\b[^-])"+c+"($|\\b(?=[^-]))", "g"), "");
                },
                has: function(e,a) {
                        if ( e.className )
                                e = e.className;
                        return new RegExp("(^|\\s)" + a + "(\\s|$)").test(e);
                }
        },
        
        /**
         * Swap in/out style options.
         * @private
         */
        swap: function(e,o,f) {
                for ( var i in o ) {
                        e.style["old"+i] = e.style[i];
                        e.style[i] = o[i];
                }
                f.apply( e, [] );
                for ( var i in o )
                        e.style[i] = e.style["old"+i];
        },
        
        css: function(e,p) {
                if ( p == "height" || p == "width" ) {
                        var old = {}, oHeight, oWidth, d = ["Top","Bottom","Right","Left"];
        
                        for ( var i in d ) {
                                old["padding" + d[i]] = 0;
                                old["border" + d[i] + "Width"] = 0;
                        }
        
                        jQuery.swap( e, old, function() {
                                if (jQuery.css(e,"display") != "none") {
                                        oHeight = e.offsetHeight;
                                        oWidth = e.offsetWidth;
                                } else
                                        jQuery.swap( e, { visibility: "hidden", position: "absolute", display: "" },
                                                function(){
                                                        oHeight = e.clientHeight;
                                                        oWidth = e.clientWidth;
                                                });
                        });
        
                        return p == "height" ? oHeight : oWidth;
                } else if ( p == "opacity" && jQuery.browser.msie )
                        return parseFloat(  jQuery.curCSS(e,"filter").replace(/[^0-9.]/,"") ) || 1;

                return jQuery.curCSS( e, p );
        },

        curCSS: function(e,p,force) {
                var r;
        
                if (!force && e.style[p])
                        r = e.style[p];
                else if (e.currentStyle) {
                        p = p.replace(/\-(\w)/g,function(m,c){return c.toUpperCase()}); 
                        r = e.currentStyle[p];
                } else if (document.defaultView && document.defaultView.getComputedStyle) {
                        p = p.replace(/([A-Z])/g,"-$1").toLowerCase();
                        var s = document.defaultView.getComputedStyle(e,"");
                        r = s ? s.getPropertyValue(p) : null;
                }
                
                return r;
        },
        
        clean: function(a) {
                var r = [];
                for ( var i = 0; i < a.length; i++ ) {
                        if ( a[i].constructor == String ) {
        
                                if ( !a[i].indexOf("<tr") ) {
                                        var tr = true;
                                        a[i] = "<table>" + a[i] + "</table>";
                                } else if ( !a[i].indexOf("<td") || !a[i].indexOf("<th") ) {
                                        var td = true;
                                        a[i] = "<table><tbody><tr>" + a[i] + "</tr></tbody></table>";
                                }
        
                                var div = document.createElement("div");
                                div.innerHTML = a[i];
        
                                if ( tr || td ) {
                                        div = div.firstChild.firstChild;
                                        if ( td ) div = div.firstChild;
                                }
        
                                for ( var j = 0; j < div.childNodes.length; j++ )
                                        r.push( div.childNodes[j] );
                        } else if ( a[i].jquery || a[i].length && !a[i].nodeType )
                                for ( var k = 0; k < a[i].length; k++ )
                                        r.push( a[i][k] );
                        else if ( a[i] !== null )
                                r.push( a[i].nodeType ? a[i] : document.createTextNode(a[i].toString()) );
                }
                return r;
        },
        
        expr: {
                "": "m[2]== '*'||a.nodeName.toUpperCase()==m[2].toUpperCase()",
                "#": "a.getAttribute('id')&&a.getAttribute('id')==m[2]",
                ":": {
                        // Position Checks
                        lt: "i<m[3]-0",
                        gt: "i>m[3]-0",
                        nth: "m[3]-0==i",
                        eq: "m[3]-0==i",
                        first: "i==0",
                        last: "i==r.length-1",
                        even: "i%2==0",
                        odd: "i%2",
                        
                        // Child Checks
                        "first-child": "jQuery.sibling(a,0).cur",
                        "last-child": "jQuery.sibling(a,0).last",
                        "only-child": "jQuery.sibling(a).length==1",
                        
                        // Parent Checks
                        parent: "a.childNodes.length",
                        empty: "!a.childNodes.length",
                        
                        // Text Check
                        contains: "(a.innerText||a.innerHTML).indexOf(m[3])>=0",
                        
                        // Visibility
                        visible: "a.type!='hidden'&&jQuery.css(a,'display')!='none'&&jQuery.css(a,'visibility')!='hidden'",
                        hidden: "a.type=='hidden'||jQuery.css(a,'display')=='none'||jQuery.css(a,'visibility')=='hidden'",
                        
                        // Form elements
                        enabled: "!a.disabled",
                        disabled: "a.disabled",
                        checked: "a.checked"
                },
                ".": "jQuery.className.has(a,m[2])",
                "@": {
                        "=": "z==m[4]",
                        "!=": "z!=m[4]",
                        "^=": "!z.indexOf(m[4])",
                        "$=": "z.substr(z.length - m[4].length,m[4].length)==m[4]",
                        "*=": "z.indexOf(m[4])>=0",
                        "": "z"
                },
                "[": "jQuery.find(m[2],a).length"
        },
        
        token: [
                "\\.\\.|/\\.\\.", "a.parentNode",
                ">|/", "jQuery.sibling(a.firstChild)",
                "\\+", "jQuery.sibling(a).next",
                "~", function(a){
                        var r = [];
                        var s = jQuery.sibling(a);
                        if ( s.n > 0 )
                                for ( var i = s.n; i < s.length; i++ )
                                        r.push( s[i] );
                        return r;
                }
        ],
        
        find: function( t, context ) {
                // Make sure that the context is a DOM Element
                if ( context && context.nodeType == undefined )
                        context = null;
        
                // Set the correct context (if none is provided)
                context = context || jQuery.context || document;
        
                if ( t.constructor != String ) return [t];
        
                if ( !t.indexOf("//") ) {
                        context = context.documentElement;
                        t = t.substr(2,t.length);
                } else if ( !t.indexOf("/") ) {
                        context = context.documentElement;
                        t = t.substr(1,t.length);
                        // FIX Assume the root element is right :(
                        if ( t.indexOf("/") >= 1 )
                                t = t.substr(t.indexOf("/"),t.length);
                }
        
                var ret = [context];
                var done = [];
                var last = null;
        
                while ( t.length > 0 && last != t ) {
                        var r = [];
                        last = t;
        
                        t = jQuery.trim(t).replace( /^\/\//i, "" );
                        
                        var foundToken = false;
                        
                        for ( var i = 0; i < jQuery.token.length; i += 2 ) {
                                var re = new RegExp("^(" + jQuery.token[i] + ")");
                                var m = re.exec(t);
                                
                                if ( m ) {
                                        r = ret = jQuery.map( ret, jQuery.token[i+1] );
                                        t = jQuery.trim( t.replace( re, "" ) );
                                        foundToken = true;
                                }
                        }
                        
                        if ( !foundToken ) {
                                if ( !t.indexOf(",") || !t.indexOf("|") ) {
                                        if ( ret[0] == context ) ret.shift();
                                        done = jQuery.merge( done, ret );
                                        r = ret = [context];
                                        t = " " + t.substr(1,t.length);
                                } else {
                                        var re2 = /^([#.]?)([a-z0-9\\*_-]*)/i;
                                        var m = re2.exec(t);
                
                                        if ( m[1] == "#" ) {
                                                // Ummm, should make this work in all XML docs
                                                var oid = document.getElementById(m[2]);
                                                r = ret = oid ? [oid] : [];
                                                t = t.replace( re2, "" );
                                        } else {
                                                if ( !m[2] || m[1] == "." ) m[2] = "*";
                
                                                for ( var i = 0; i < ret.length; i++ )
                                                        r = jQuery.merge( r,
                                                                m[2] == "*" ?
                                                                        jQuery.getAll(ret[i]) :
                                                                        ret[i].getElementsByTagName(m[2])
                                                        );
                                        }
                                }
                        }
        
                        if ( t ) {
                                var val = jQuery.filter(t,r);
                                ret = r = val.r;
                                t = jQuery.trim(val.t);
                        }
                }
        
                if ( ret && ret[0] == context ) ret.shift();
                done = jQuery.merge( done, ret );
        
                return done;
        },
        
        getAll: function(o,r) {
                r = r || [];
                var s = o.childNodes;
                for ( var i = 0; i < s.length; i++ )
                        if ( s[i].nodeType == 1 ) {
                                r.push( s[i] );
                                jQuery.getAll( s[i], r );
                        }
                return r;
        },
        
        attr: function(o,a,v){
                if ( a && a.constructor == String ) {
                        var fix = {
                                "for": "htmlFor",
                                "class": "className",
                                "float": "cssFloat"
                        };
                        
                        a = (fix[a] && fix[a].replace && fix[a] || a)
                                .replace(/-([a-z])/ig,function(z,b){
                                        return b.toUpperCase();
                                });
                        
                        if ( v != undefined ) {
                                o[a] = v;
                                if ( o.setAttribute && a != "disabled" )
                                        o.setAttribute(a,v);
                        }
                        
                        return o[a] || o.getAttribute && o.getAttribute(a) || "";
                } else
                        return "";
        },

        // The regular expressions that power the parsing engine
        parse: [
                // Match: [@value='test'], [@foo]
                [ "\\[ *(@)S *([!*$^=]*) *Q\\]", 1 ],

                // Match: [div], [div p]
                [ "(\\[)Q\\]", 0 ],

                // Match: :contains('foo')
                [ "(:)S\\(Q\\)", 0 ],

                // Match: :even, :last-chlid
                [ "([:.#]*)S", 0 ]
        ],
        
        filter: function(t,r,not) {
                // Figure out if we're doing regular, or inverse, filtering
                var g = not !== false ? jQuery.grep :
                        function(a,f) {return jQuery.grep(a,f,true);};
                
                while ( t && /^[a-z[({<*:.#]/i.test(t) ) {

                        var p = jQuery.parse;

                        for ( var i = 0; i < p.length; i++ ) {
                                var re = new RegExp( "^" + p[i][0]

                                        // Look for a string-like sequence
                                        .replace( 'S', "([a-z*_-][a-z0-9_-]*)" )

                                        // Look for something (optionally) enclosed with quotes
                                        .replace( 'Q', " *'?\"?([^'\"]*)'?\"? *" ), "i" );

                                var m = re.exec( t );

                                if ( m ) {
                                        // Re-organize the match
                                        if ( p[i][1] )
                                                m = ["", m[1], m[3], m[2], m[4]];

                                        // Remove what we just matched
                                        t = t.replace( re, "" );

                                        break;
                                }
                        }
        
                        // :not() is a special case that can be optomized by
                        // keeping it out of the expression list
                        if ( m[1] == ":" && m[2] == "not" )
                                r = jQuery.filter(m[3],r,false).r;
                        
                        // Otherwise, find the expression to execute
                        else {
                                var f = jQuery.expr[m[1]];
                                if ( f.constructor != String )
                                        f = jQuery.expr[m[1]][m[2]];
                                        
                                // Build a custom macro to enclose it
                                eval("f = function(a,i){" + 
                                        ( m[1] == "@" ? "z=jQuery.attr(a,m[3]);" : "" ) + 
                                        "return " + f + "}");
                                
                                // Execute it against the current filter
                                r = g( r, f );
                        }
                }
        
                // Return an array of filtered elements (r)
                // and the modified expression string (t)
                return { r: r, t: t };
        },
        
        /**
         * Remove the whitespace from the beginning and end of a string.
         *
         * @private
         * @name $.trim
         * @type String
         * @param String str The string to trim.
         */
        trim: function(t){
                return t.replace(/^\s+|\s+$/g, "");
        },
        
        /**
         * All ancestors of a given element.
         *
         * @private
         * @name $.parents
         * @type Array<Element>
         * @param Element elem The element to find the ancestors of.
         */
        parents: function(a){
                var b = [];
                var c = a.parentNode;
                while ( c && c != document ) {
                        b.push( c );
                        c = c.parentNode;
                }
                return b;
        },
        
        /**
         * All elements on a specified axis.
         *
         * @private
         * @name $.sibling
         * @type Array
         * @param Element elem The element to find all the siblings of (including itself).
         */
        sibling: function(a,n) {
                var type = [];
                var tmp = a.parentNode.childNodes;
                for ( var i = 0; i < tmp.length; i++ ) {
                        if ( tmp[i].nodeType == 1 )
                                type.push( tmp[i] );
                        if ( tmp[i] == a )
                                type.n = type.length - 1;
                }
                type.last = type.n == type.length - 1;
                type.cur =
                        n == "even" && type.n % 2 == 0 ||
                        n == "odd" && type.n % 2 ||
                        type[n] == a;
                type.prev = type[type.n - 1];
                type.next = type[type.n + 1];
                return type;
        },
        
        /**
         * Merge two arrays together, removing all duplicates.
         *
         * @private
         * @name $.merge
         * @type Array
         * @param Array a The first array to merge.
         * @param Array b The second array to merge.
         */
        merge: function(a,b) {
                var d = [];
                
                // Move b over to the new array (this helps to avoid
                // StaticNodeList instances)
                for ( var k = 0; k < b.length; k++ )
                        d[k] = b[k];
        
                // Now check for duplicates between a and b and only
                // add the unique items
                for ( var i = 0; i < a.length; i++ ) {
                        var c = true;
                        
                        // The collision-checking process
                        for ( var j = 0; j < b.length; j++ )
                                if ( a[i] == b[j] )
                                        c = false;
                                
                        // If the item is unique, add it
                        if ( c )
                                d.push( a[i] );
                }
        
                return d;
        },
        
        /**
         * Remove items that aren't matched in an array. The function passed
         * in to this method will be passed two arguments: 'a' (which is the
         * array item) and 'i' (which is the index of the item in the array).
         *
         * @private
         * @name $.grep
         * @type Array
         * @param Array array The Array to find items in.
         * @param Function fn The function to process each item against.
         * @param Boolean inv Invert the selection - select the opposite of the function.
         */
        grep: function(a,f,s) {
                // If a string is passed in for the function, make a function
                // for it (a handy shortcut)
                if ( f.constructor == String )
                        f = new Function("a","i","return " + f);
                        
                var r = [];
                
                // Go through the array, only saving the items
                // that pass the validator function
                for ( var i = 0; i < a.length; i++ )
                        if ( !s && f(a[i],i) || s && !f(a[i],i) )
                                r.push( a[i] );
                
                return r;
        },
        
        /**
         * Translate all items in array to another array of items. The translation function
         * that is provided to this method is passed one argument: 'a' (the item to be 
         * translated). If an array is returned, that array is mapped out and merged into
         * the full array. Additionally, returning 'null' or 'undefined' will delete the item
         * from the array. Both of these changes imply that the size of the array may not
         * be the same size upon completion, as it was when it started.
         *
         * @private
         * @name $.map
         * @type Array
         * @param Array array The Array to translate.
         * @param Function fn The function to process each item against.
         */
        map: function(a,f) {
                // If a string is passed in for the function, make a function
                // for it (a handy shortcut)
                if ( f.constructor == String )
                        f = new Function("a","return " + f);
                
                var r = [];
                
                // Go through the array, translating each of the items to their
                // new value (or values).
                for ( var i = 0; i < a.length; i++ ) {
                        var t = f(a[i],i);
                        if ( t !== null && t != undefined ) {
                                if ( t.constructor != Array ) t = [t];
                                r = jQuery.merge( t, r );
                        }
                }
                return r;
        },
        
        /*
         * A number of helper functions used for managing events.
         * Many of the ideas behind this code orignated from Dean Edwards' addEvent library.
         */
        event: {
        
                // Bind an event to an element
                // Original by Dean Edwards
                add: function(element, type, handler) {
                        // For whatever reason, IE has trouble passing the window object
                        // around, causing it to be cloned in the process
                        if ( jQuery.browser.msie && element.setInterval != undefined )
                                element = window;
                
                        // Make sure that the function being executed has a unique ID
                        if ( !handler.guid )
                                handler.guid = this.guid++;
                                
                        // Init the element's event structure
                        if (!element.events)
                                element.events = {};
                        
                        // Get the current list of functions bound to this event
                        var handlers = element.events[type];
                        
                        // If it hasn't been initialized yet
                        if (!handlers) {
                                // Init the event handler queue
                                handlers = element.events[type] = {};
                                
                                // Remember an existing handler, if it's already there
                                if (element["on" + type])
                                        handlers[0] = element["on" + type];
                        }

                        // Add the function to the element's handler list
                        handlers[handler.guid] = handler;
                        
                        // And bind the global event handler to the element
                        element["on" + type] = this.handle;
        
                        // Remember the function in a global list (for triggering)
                        if (!this.global[type])
                                this.global[type] = [];
                        this.global[type].push( element );
                },
                
                guid: 1,
                global: {},
                
                // Detach an event or set of events from an element
                remove: function(element, type, handler) {
                        if (element.events)
                                if (type && element.events[type])
                                        if ( handler )
                                                delete element.events[type][handler.guid];
                                        else
                                                for ( var i in element.events[type] )
                                                        delete element.events[type][i];
                                else
                                        for ( var j in element.events )
                                                this.remove( element, j );
                },
                
                trigger: function(type,data,element) {
                        // Touch up the incoming data
                        data = data || [];
        
                        // Handle a global trigger
                        if ( !element ) {
                                var g = this.global[type];
                                if ( g )
                                        for ( var i = 0; i < g.length; i++ )
                                                this.trigger( type, data, g[i] );
        
                        // Handle triggering a single element
                        } else if ( element["on" + type] ) {
                                // Pass along a fake event
                                data.unshift( this.fix({ type: type, target: element }) );
        
                                // Trigger the event
                                element["on" + type].apply( element, data );
                        }
                },
                
                handle: function(event) {
                        if ( typeof jQuery == "undefined" ) return;

                        event = event || jQuery.event.fix( window.event );
        
                        // If no correct event was found, fail
                        if ( !event ) return;
                
                        var returnValue = true;

                        var c = this.events[event.type];
                
                        for ( var j in c ) {
                                if ( c[j].apply( this, [event] ) === false ) {
                                        event.preventDefault();
                                        event.stopPropagation();
                                        returnValue = false;
                                }
                        }
                        
                        return returnValue;
                },
                
                fix: function(event) {
                        if ( event ) {
                                event.preventDefault = function() {
                                        this.returnValue = false;
                                };
                        
                                event.stopPropagation = function() {
                                        this.cancelBubble = true;
                                };
                        }
                        
                        return event;
                }
        
        }
});

new function() {
        var b = navigator.userAgent.toLowerCase();

        // Figure out what browser is being used
        jQuery.browser = {
                safari: /webkit/.test(b),
                opera: /opera/.test(b),
                msie: /msie/.test(b) && !/opera/.test(b),
                mozilla: /mozilla/.test(b) && !/compatible/.test(b)
        };

        // Check to see if the W3C box model is being used
        jQuery.boxModel = !jQuery.browser.msie || document.compatMode == "CSS1Compat";
};

jQuery.macros = {
        to: ["append","prepend","before","after"],
        css: "width,height,top,left,position,float,overflow,color,background".split(","),
        attr: {
                val: "value",
                html: "innerHTML",
                value: null,
                id: null,
                title: null,
                name: null,
                href: null,
                src: null,
                rel: null
        },
        axis: {
                /**
                 * Get a set of elements containing the unique parents of the matched
                 * set of elements.
                 *
                 * @example $("p").parent()
                 * @before <div><p>Hello</p><p>Hello</p></div>
                 * @result [ <div><p>Hello</p><p>Hello</p></div> ]
                 *
                 * @name parent
                 * @type jQuery
                 */

                /**
                 * Get a set of elements containing the unique parents of the matched
                 * set of elements, and filtered by an expression.
                 *
                 * @example $("p").parent(".selected")
                 * @before <div><p>Hello</p></div><div class="selected"><p>Hello Again</p></div>
                 * @result [ <div class="selected"><p>Hello Again</p></div> ]
                 *
                 * @name parent
                 * @type jQuery
                 * @param String expr An expression to filter the parents with
                 */
                parent: "a.parentNode",

                /**
                 * Get a set of elements containing the unique ancestors of the matched
                 * set of elements.
                 *
                 * @example $("span").ancestors()
                 * @before <html><body><div><p><span>Hello</span></p><span>Hello Again</span></div></body></html>
                 * @result [ <body>...</body>, <div>...</div>, <p><span>Hello</span></p> ] 
                 *
                 * @name ancestors
                 * @type jQuery
                 */

                /**
                 * Get a set of elements containing the unique ancestors of the matched
                 * set of elements, and filtered by an expression.
                 *
                 * @example $("span").ancestors("p")
                 * @before <html><body><div><p><span>Hello</span></p><span>Hello Again</span></div></body></html>
                 * @result [ <p><span>Hello</span></p> ] 
                 *
                 * @name ancestors
                 * @type jQuery
                 * @param String expr An expression to filter the ancestors with
                 */
                ancestors: jQuery.parents,
                
                /**
                 * A synonym for ancestors
                 */
                parents: jQuery.parents,

                /**
                 * 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.
                 *
                 * @example $("p").next()
                 * @before <p>Hello</p><p>Hello Again</p><div><span>And Again</span></div>
                 * @result [ <p>Hello Again</p>, <div><span>And Again</span></div> ]
                 *
                 * @name next
                 * @type jQuery
                 */

                /**
                 * Get a set of elements containing the unique next siblings of each of the 
                 * matched set of elements, and filtered by an expression.
                 * 
                 * It only returns the very next sibling, not all next siblings.
                 *
                 * @example $("p").next(".selected")
                 * @before <p>Hello</p><p class="selected">Hello Again</p><div><span>And Again</span></div>
                 * @result [ <p class="selected">Hello Again</p> ]
                 *
                 * @name next
                 * @type jQuery
                 * @param String expr An expression to filter the next Elements with
                 */
                next: "jQuery.sibling(a).next",

                /**
                 * Get a set of elements containing the unique previous siblings of each of the 
                 * matched set of elements.
                 * 
                 * It only returns the immediately previous sibling, not all previous siblings.
                 *
                 * @example $("p").previous()
                 * @before <p>Hello</p><div><span>Hello Again</span></div><p>And Again</p>
                 * @result [ <div><span>Hello Again</span></div> ]
                 *
                 * @name prev
                 * @type jQuery
                 */

                /**
                 * Get a set of elements containing the unique previous siblings of each of the 
                 * matched set of elements, and filtered by an expression.
                 * 
                 * It only returns the immediately previous sibling, not all previous siblings.
                 *
                 * @example $("p").previous("selected")
                 * @before <div><span>Hello</span></div><p class="selected">Hello Again</p><p>And Again</p>
                 * @result [ <div><span>Hello</span></div> ]
                 *
                 * @name prev
                 * @type jQuery
                 * @param String expr An expression to filter the previous Elements with
                 */
                prev: "jQuery.sibling(a).prev",

                /**
                 * Get a set of elements containing all of the unique siblings of each of the 
                 * matched set of elements.
                 * 
                 * @example $("div").siblings()
                 * @before <p>Hello</p><div><span>Hello Again</span></div><p>And Again</p>
                 * @result [ <p>Hello</p>, <p>And Again</p> ]
                 *
                 * @name siblings
                 * @type jQuery
                 */

                /**
                 * Get a set of elements containing all of the unique siblings of each of the 
                 * matched set of elements, and filtered by an expression.
                 *
                 * @example $("div").siblings("selected")
                 * @before <div><span>Hello</span></div><p class="selected">Hello Again</p><p>And Again</p>
                 * @result [ <p class="selected">Hello Again</p> ]
                 *
                 * @name siblings
                 * @type jQuery
                 * @param String expr An expression to filter the sibling Elements with
                 */
                siblings: jQuery.sibling
        },

        each: {
                /**
                 * Displays each of the set of matched elements if they are hidden.
                 * 
                 * @example $("p").show()
                 * @before <p style="display: none">Hello</p>
                 * @result [ <p style="display: block">Hello</p> ]
                 *
                 * @name show
                 * @type jQuery
                 */
                show: function(){
                        this.style.display = this.oldblock ? this.oldblock : "";
                        if ( jQuery.css(this,"display") == "none" )
                                this.style.display = "block";
                },

                /**
                 * Hides each of the set of matched elements if they are shown.
                 *
                 * @example $("p").hide()
                 * @before <p>Hello</p>
                 * @result [ <p style="display: none">Hello</p> ]
                 *
                 * @name hide
                 * @type jQuery
                 */
                hide: function(){
                        this.oldblock = jQuery.css(this,"display");
                        if ( this.oldblock == "none" )
                                this.oldblock = "block";
                        this.style.display = "none";
                },
                
                /**
                 * Toggles each of the set of matched elements. If they are shown,
                 * toggle makes them hidden. If they are hidden, toggle
                 * makes them shown.
                 *
                 * @example $("p").toggle()
                 * @before <p>Hello</p><p style="display: none">Hello Again</p>
                 * @result [ <p style="display: none">Hello</p>, <p style="display: block">Hello Again</p> ]
                 *
                 * @name toggle
                 * @type jQuery
                 */
                toggle: function(){
                        var d = jQuery.css(this,"display");
                        $(this)[ !d || d == "none" ? "show" : "hide" ]();
                },
                
                /**
                 * Adds the specified class to each of the set of matched elements.
                 *
                 * @example ("p").addClass("selected")
                 * @before <p>Hello</p>
                 * @result [ <p class="selected">Hello</p> ]
                 * 
                 * @name addClass
                 * @type jQuery
                 * @param String class A CSS class to add to the elements
                 */
                addClass: function(c){
                        jQuery.className.add(this,c);
                },
                
                /**
                 * The opposite of addClass. Removes the specified class from the
                 * set of matched elements.
                 *
                 * @example ("p").removeClass("selected")
                 * @before <p class="selected">Hello</p>
                 * @result [ <p>Hello</p> ]
                 *
                 * @name removeClass
                 * @type jQuery
                 * @param String class A CSS class to remove from the elements
                 */
                removeClass: function(c){
                        jQuery.className.remove(this,c);
                },
        
                /**
                 * Adds the specified class if it is present. Remove it if it is
                 * not present.
                 *
                 * @example ("p").toggleClass("selected")
                 * @before <p>Hello</p><p class="selected">Hello Again</p>
                 * @result [ <p class="selected">Hello</p>, <p>Hello Again</p> ]
                 *
                 * @name toggleClass
                 * @type jQuery
                 * @param String class A CSS class with which to toggle the elements
                 */
                toggleClass: function( c ){
                        jQuery.className[ jQuery.className.has(this,c) ? "remove" : "add" ](this,c);
                },
                
                /**
                 * TODO: Document
                 */
                remove: function(a){
                        if ( !a || jQuery.filter( [this], a ).r )
                                this.parentNode.removeChild( this );
                },
        
                /**
                 * Removes all child nodes from the set of matched elements.
                 *
                 * @example ("p").empty()
                 * @before <p>Hello, <span>Person</span> <a href="#">and person</a></p>
                 * @result [ <p></p> ]
                 *
                 * @name empty
                 * @type jQuery
                 */
                empty: function(){
                        while ( this.firstChild )
                                this.removeChild( this.firstChild );
                },
                
                /**
                 * Binds a particular event (like click) to a each of a set of match elements.
                 *
                 * @example $("p").bind( "click", function() { alert("Hello"); } )
                 * @before <p>Hello</p>
                 * @result [ <p>Hello</p> ]
                 *
                 * Cancel a default action and prevent it from bubbling by returning false
                 * from your function.
                 *
                 * @example $("form").bind( "submit", function() { return false; } )
                 *
                 * Cancel a default action by using the preventDefault method.
                 *
                 * @example $("form").bind( "submit", function() { e.preventDefault(); } )
                 *
                 * Stop an event from bubbling by using the stopPropogation method.
                 *
                 * @example $("form").bind( "submit", function() { e.stopPropogation(); } )
                 *
                 * @name bind
                 * @type jQuery
                 * @param String type An event type
                 * @param Function fn A function to bind to the event on each of the set of matched elements
                 */
                bind: function( type, fn ) {
                        if ( fn.constructor == String )
                                fn = new Function("e", ( !fn.indexOf(".") ? "$(this)" : "return " ) + fn);
                        jQuery.event.add( this, type, fn );
                },
                
                /**
                 * The opposite of bind. Removes a bound event from each of a set of matched
                 * elements. You must pass the identical function that was used in the original 
                 * bind method.
                 *
                 * @example $("p").unbind( "click", function() { alert("Hello"); } )
                 * @before <p>Hello</p>
                 * @result [ <p>Hello</p> ]
                 *
                 * @name unbind
                 * @type jQuery
                 * @param String type An event type
                 * @param Function fn A function to unbind from the event on each of the set of matched elements
                 */
                unbind: function( type, fn ) {
                        jQuery.event.remove( this, type, fn );
                },
                
                /**
                 * Trigger a particular event.
                 *
                 * @example $("p").trigger("click")
                 * @before <p>Hello</p>
                 * @result [ <p>Hello</p> ]
                 *
                 * @name trigger
                 * @type jQuery
                 * @param String type An event type
                 */
                trigger: function( type, data ) {
                        jQuery.event.trigger( type, data, this );
                }
        }
};