/*!

 * jQuery JavaScript Library v1.4.2

 * http://jquery.com/

 *

 * Copyright 2010, John Resig

 * Dual licensed under the MIT or GPL Version 2 licenses.

 * http://jquery.org/license

 *

 * Includes Sizzle.js

 * http://sizzlejs.com/

 * Copyright 2010, The Dojo Foundation

 * Released under the MIT, BSD, and GPL Licenses.

 *

 * Date: Sat Feb 13 22:33:48 2010 -0500

 */

(function( window, undefined ) {

// Define a local copy of jQuery

var jQuery = function( selector, context ) {

		// The jQuery object is actually just the init constructor 'enhanced'

		return new jQuery.fn.init( selector, context );

	},

	// Map over jQuery in case of overwrite

	_jQuery = window.jQuery,

	// Map over the $ in case of overwrite

	_$ = window.$,

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

	document = window.document,

	// A central reference to the root jQuery(document)

	rootjQuery,

	// A simple way to check for HTML strings or ID strings

	// (both of which we optimize for)

	quickExpr = /^[^<]*(<[\w\W]+>)[^>]*$|^#([\w-]+)$/,

	// Is it a simple selector

	isSimple = /^.[^:#\[\.,]*$/,

	// Check if a string has a non-whitespace character in it

	rnotwhite = /\S/,

	// Used for trimming whitespace

	rtrim = /^(\s|\u00A0)+|(\s|\u00A0)+$/g,

	// Match a standalone tag

	rsingleTag = /^<(\w+)\s*\/?>(?:<\/\1>)?$/,

	// Keep a UserAgent string for use with jQuery.browser

	userAgent = navigator.userAgent,

	// For matching the engine and version of the browser

	browserMatch,

	// Has the ready events already been bound?

	readyBound = false,

	// The functions to execute on DOM ready

	readyList = [],

	// The ready event handler

	DOMContentLoaded,

	// Save a reference to some core methods

	toString = Object.prototype.toString,

	hasOwnProperty = Object.prototype.hasOwnProperty,

	push = Array.prototype.push,

	slice = Array.prototype.slice,

	indexOf = Array.prototype.indexOf;

jQuery.fn = jQuery.prototype = {

	init: function( selector, context ) {

		var match, elem, ret, doc;

		// Handle $(""), $(null), or $(undefined)

		if ( !selector ) {

			return this;

		}

		// Handle $(DOMElement)

		if ( selector.nodeType ) {

			this.context = this[0] = selector;

			this.length = 1;

			return this;

		}

		// The body element only exists once, optimize finding it

		if ( selector === "body" && !context ) {

			this.context = document;

			this[0] = document.body;

			this.selector = "body";

			this.length = 1;

			return this;

		}

		// Handle HTML strings

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

			// Are we dealing with HTML string or an ID?

			match = quickExpr.exec( selector );

			// Verify a match, and that no context was specified for #id

			if ( match && (match[1] || !context) ) {

				// HANDLE: $(html) -> $(array)

				if ( match[1] ) {

					doc = (context ? context.ownerDocument || context : document);

					// If a single string is passed in and it's a single tag

					// just do a createElement and skip the rest

					ret = rsingleTag.exec( selector );

					if ( ret ) {

						if ( jQuery.isPlainObject( context ) ) {

							selector = [ document.createElement( ret[1] ) ];

							jQuery.fn.attr.call( selector, context, true );

						} else {

							selector = [ doc.createElement( ret[1] ) ];

						}

					} else {

						ret = buildFragment( [ match[1] ], [ doc ] );

						selector = (ret.cacheable ? ret.fragment.cloneNode(true) : ret.fragment).childNodes;

					}

					return jQuery.merge( this, selector );

				// HANDLE: $("#id")

				} else {

					elem = document.getElementById( match[2] );

					if ( elem ) {

						// Handle the case where IE and Opera return items

						// by name instead of ID

						if ( elem.id !== match[2] ) {

							return rootjQuery.find( selector );

						}

						// Otherwise, we inject the element directly into the jQuery object

						this.length = 1;

						this[0] = elem;

					}

					this.context = document;

					this.selector = selector;

					return this;

				}

			// HANDLE: $("TAG")

			} else if ( !context && /^\w+$/.test( selector ) ) {

				this.selector = selector;

				this.context = document;

				selector = document.getElementsByTagName( selector );

				return jQuery.merge( this, selector );

			// HANDLE: $(expr, $(...))

			} else if ( !context || context.jquery ) {

				return (context || rootjQuery).find( selector );

			// HANDLE: $(expr, context)

			// (which is just equivalent to: $(context).find(expr)

			} else {

				return jQuery( context ).find( selector );

			}

		// HANDLE: $(function)

		// Shortcut for document ready

		} else if ( jQuery.isFunction( selector ) ) {

			return rootjQuery.ready( selector );

		}

		if (selector.selector !== undefined) {

			this.selector = selector.selector;

			this.context = selector.context;

		}

		return jQuery.makeArray( selector, this );

	},

	// Start with an empty selector

	selector: "",

	// The current version of jQuery being used

	jquery: "1.4.2",

	// The default length of a jQuery object is 0

	length: 0,

	// The number of elements contained in the matched element set

	size: function() {

		return this.length;

	},

	toArray: function() {

		return slice.call( this, 0 );

	},

	// Get the Nth element in the matched element set OR

	// Get the whole matched element set as a clean array

	get: function( num ) {

		return num == null ?

			// Return a 'clean' array

			this.toArray() :

			// Return just the object

			( num < 0 ? this.slice(num)[ 0 ] : this[ num ] );

	},

	// Take an array of elements and push it onto the stack

	// (returning the new matched element set)

	pushStack: function( elems, name, selector ) {

		// Build a new jQuery matched element set

		var ret = jQuery();

		if ( jQuery.isArray( elems ) ) {

			push.apply( ret, elems );

		} else {

			jQuery.merge( ret, elems );

		}

		// Add the old object onto the stack (as a reference)

		ret.prevObject = this;

		ret.context = this.context;

		if ( name === "find" ) {

			ret.selector = this.selector + (this.selector ? " " : "") + selector;

		} else if ( name ) {

			ret.selector = this.selector + "." + name + "(" + selector + ")";

		}

		// Return the newly-formed element set

		return ret;

	},

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

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

	// only used internally.)

	each: function( callback, args ) {

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

	},

	ready: function( fn ) {

		// Attach the listeners

		jQuery.bindReady();

		// If the DOM is already ready

		if ( jQuery.isReady ) {

			// Execute the function immediately

			fn.call( document, jQuery );

		// Otherwise, remember the function for later

		} else if ( readyList ) {

			// Add the function to the wait list

			readyList.push( fn );

		}

		return this;

	},

	eq: function( i ) {

		return i === -1 ?

			this.slice( i ) :

			this.slice( i, +i + 1 );

	},

	first: function() {

		return this.eq( 0 );

	},

	last: function() {

		return this.eq( -1 );

	},

	slice: function() {

		return this.pushStack( slice.apply( this, arguments ),

			"slice", slice.call(arguments).join(",") );

	},

	map: function( callback ) {

		return this.pushStack( jQuery.map(this, function( elem, i ) {

			return callback.call( elem, i, elem );

		}));

	},

	end: function() {

		return this.prevObject || jQuery(null);

	},

	// For internal use only.

	// Behaves like an Array's method, not like a jQuery method.

	push: push,

	sort: [].sort,

	splice: [].splice

};

// Give the init function the jQuery prototype for later instantiation

jQuery.fn.init.prototype = jQuery.fn;

jQuery.extend = jQuery.fn.extend = function() {

	// copy reference to target object

	var target = arguments[0] || {}, i = 1, length = arguments.length, deep = false, options, name, src, copy;

	// Handle a deep copy situation

	if ( typeof target === "boolean" ) {

		deep = target;

		target = arguments[1] || {};

		// skip the boolean and the target

		i = 2;

	}

	// Handle case when target is a string or something (possible in deep copy)

	if ( typeof target !== "object" && !jQuery.isFunction(target) ) {

		target = {};

	}

	// extend jQuery itself if only one argument is passed

	if ( length === i ) {

		target = this;

		--i;

	}

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

		// Only deal with non-null/undefined values

		if ( (options = arguments[ i ]) != null ) {

			// Extend the base object

			for ( name in options ) {

				src = target[ name ];

				copy = options[ name ];

				// Prevent never-ending loop

				if ( target === copy ) {

					continue;

				}

				// Recurse if we're merging object literal values or arrays

				if ( deep && copy && ( jQuery.isPlainObject(copy) || jQuery.isArray(copy) ) ) {

					var clone = src && ( jQuery.isPlainObject(src) || jQuery.isArray(src) ) ? src

						: jQuery.isArray(copy) ? [] : {};

					// Never move original objects, clone them

					target[ name ] = jQuery.extend( deep, clone, copy );

				// Don't bring in undefined values

				} else if ( copy !== undefined ) {

					target[ name ] = copy;

				}

			}

		}

	}

	// Return the modified object

	return target;

};

jQuery.extend({

	noConflict: function( deep ) {

		window.$ = _$;

		if ( deep ) {

			window.jQuery = _jQuery;

		}

		return jQuery;

	},

	// Is the DOM ready to be used? Set to true once it occurs.

	isReady: false,

	// Handle when the DOM is ready

	ready: function() {

		// Make sure that the DOM is not already loaded

		if ( !jQuery.isReady ) {

			// Make sure body exists, at least, in case IE gets a little overzealous (ticket #5443).

			if ( !document.body ) {

				return setTimeout( jQuery.ready, 13 );

			}

			// Remember that the DOM is ready

			jQuery.isReady = true;

			// If there are functions bound, to execute

			if ( readyList ) {

				// Execute all of them

				var fn, i = 0;

				while ( (fn = readyList[ i++ ]) ) {

					fn.call( document, jQuery );

				}

				// Reset the list of functions

				readyList = null;

			}

			// Trigger any bound ready events

			if ( jQuery.fn.triggerHandler ) {

				jQuery( document ).triggerHandler( "ready" );

			}

		}

	},

	bindReady: function() {

		if ( readyBound ) {

			return;

		}

		readyBound = true;

		// Catch cases where $(document).ready() is called after the

		// browser event has already occurred.

		if ( document.readyState === "complete" ) {

			return jQuery.ready();

		}

		// Mozilla, Opera and webkit nightlies currently support this event

		if ( document.addEventListener ) {

			// Use the handy event callback

			document.addEventListener( "DOMContentLoaded", DOMContentLoaded, false );

			// A fallback to window.onload, that will always work

			window.addEventListener( "load", jQuery.ready, false );

		// If IE event model is used

		} else if ( document.attachEvent ) {

			// ensure firing before onload,

			// maybe late but safe also for iframes

			document.attachEvent("onreadystatechange", DOMContentLoaded);

			// A fallback to window.onload, that will always work

			window.attachEvent( "onload", jQuery.ready );

			// If IE and not a frame

			// continually check to see if the document is ready

			var toplevel = false;

			try {

				toplevel = window.frameElement == null;

			} catch(e) {}

			if ( document.documentElement.doScroll && toplevel ) {

				doScrollCheck();

			}

		}

	},

	// See test/unit/core.js for details concerning isFunction.

	// Since version 1.3, DOM methods and functions like alert

	// aren't supported. They return false on IE (#2968).

	isFunction: function( obj ) {

		return toString.call(obj) === "[object Function]";

	},

	isArray: function( obj ) {

		return toString.call(obj) === "[object Array]";

	},

	isPlainObject: function( obj ) {

		// Must be an Object.

		// Because of IE, we also have to check the presence of the constructor property.

		// Make sure that DOM nodes and window objects don't pass through, as well

		if ( !obj || toString.call(obj) !== "[object Object]" || obj.nodeType || obj.setInterval ) {

			return false;

		}

		// Not own constructor property must be Object

		if ( obj.constructor

			&& !hasOwnProperty.call(obj, "constructor")

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

			return false;

		}

		// Own properties are enumerated firstly, so to speed up,

		// if last one is own, then all properties are own.

		var key;

		for ( key in obj ) {}

		return key === undefined || hasOwnProperty.call( obj, key );

	},

	isEmptyObject: function( obj ) {

		for ( var name in obj ) {

			return false;

		}

		return true;

	},

	error: function( msg ) {

		throw msg;

	},