/*!
 * jQuery UI 1.8.2
 *
 * Copyright (c) 2010 AUTHORS.txt (http://jqueryui.com/about)
 * Dual licensed under the MIT (MIT-LICENSE.txt)
 * and GPL (GPL-LICENSE.txt) licenses.
 *
 * http://docs.jquery.com/UI
 */

(function($) {

// prevent duplicate loading
// this is only a problem because we proxy existing functions
// and we don't want to double proxy them
$.ui = $.ui || {};
if ($.ui.version) {
	return;
}

//Helper functions and ui object
$.extend($.ui, {
	version: "1.8.2",

	// $.ui.plugin is deprecated.  Use the proxy pattern instead.
	plugin: {
		add: function(module, option, set) {
			var proto = $.ui[module].prototype;
			for(var i in set) {
				proto.plugins[i] = proto.plugins[i] || [];
				proto.plugins[i].push([option, set[i]]);
			}
		},
		call: function(instance, name, args) {
			var set = instance.plugins[name];
			if(!set || !instance.element[0].parentNode) { return; }

			for (var i = 0; i < set.length; i++) {
				if (instance.options[set[i][0]]) {
					set[i][1].apply(instance.element, args);
				}
			}
		}
	},

	contains: function(a, b) {
		return document.compareDocumentPosition
			? a.compareDocumentPosition(b) & 16
			: a !== b && a.contains(b);
	},

	hasScroll: function(el, a) {

		//If overflow is hidden, the element might have extra content, but the user wants to hide it
		if ($(el).css('overflow') == 'hidden') { return false; }

		var scroll = (a && a == 'left') ? 'scrollLeft' : 'scrollTop',
			has = false;

		if (el[scroll] > 0) { return true; }

		// TODO: determine which cases actually cause this to happen
		// if the element doesn't have the scroll set, see if it's possible to
		// set the scroll
		el[scroll] = 1;
		has = (el[scroll] > 0);
		el[scroll] = 0;
		return has;
	},

	isOverAxis: function(x, reference, size) {
		//Determines when x coordinate is over "b" element axis
		return (x > reference) && (x < (reference + size));
	},

	isOver: function(y, x, top, left, height, width) {
		//Determines when x, y coordinates is over "b" element
		return $.ui.isOverAxis(y, top, height) && $.ui.isOverAxis(x, left, width);
	},

	keyCode: {
		ALT: 18,
		BACKSPACE: 8,
		CAPS_LOCK: 20,
		COMMA: 188,
		COMMAND: 91,
		COMMAND_LEFT: 91, // COMMAND
		COMMAND_RIGHT: 93,
		CONTROL: 17,
		DELETE: 46,
		DOWN: 40,
		END: 35,
		ENTER: 13,
		ESCAPE: 27,
		HOME: 36,
		INSERT: 45,
		LEFT: 37,
		MENU: 93, // COMMAND_RIGHT
		NUMPAD_ADD: 107,
		NUMPAD_DECIMAL: 110,
		NUMPAD_DIVIDE: 111,
		NUMPAD_ENTER: 108,
		NUMPAD_MULTIPLY: 106,
		NUMPAD_SUBTRACT: 109,
		PAGE_DOWN: 34,
		PAGE_UP: 33,
		PERIOD: 190,
		RIGHT: 39,
		SHIFT: 16,
		SPACE: 32,
		TAB: 9,
		UP: 38,
		WINDOWS: 91 // COMMAND
	}
});

//jQuery plugins
$.fn.extend({
	_focus: $.fn.focus,
	focus: function(delay, fn) {
		return typeof delay === 'number'
			? this.each(function() {
				var elem = this;
				setTimeout(function() {
					$(elem).focus();
					(fn && fn.call(elem));
				}, delay);
			})
			: this._focus.apply(this, arguments);
	},
	
	enableSelection: function() {
		return this
			.attr('unselectable', 'off')
			.css('MozUserSelect', '');
	},

	disableSelection: function() {
		return this
			.attr('unselectable', 'on')
			.css('MozUserSelect', 'none');
	},

	scrollParent: function() {
		var scrollParent;
		if(($.browser.msie && (/(static|relative)/).test(this.css('position'))) || (/absolute/).test(this.css('position'))) {
			scrollParent = this.parents().filter(function() {
				return (/(relative|absolute|fixed)/).test($.curCSS(this,'position',1)) && (/(auto|scroll)/).test($.curCSS(this,'overflow',1)+$.curCSS(this,'overflow-y',1)+$.curCSS(this,'overflow-x',1));
			}).eq(0);
		} else {
			scrollParent = this.parents().filter(function() {
				return (/(auto|scroll)/).test($.curCSS(this,'overflow',1)+$.curCSS(this,'overflow-y',1)+$.curCSS(this,'overflow-x',1));
			}).eq(0);
		}

		return (/fixed/).test(this.css('position')) || !scrollParent.length ? $(document) : scrollParent;
	},

	zIndex: function(zIndex) {
		if (zIndex !== undefined) {
			return this.css('zIndex', zIndex);
		}
		
		if (this.length) {
			var elem = $(this[0]), position, value;
			while (elem.length && elem[0] !== document) {
				// Ignore z-index if position is set to a value where z-index is ignored by the browser
				// This makes behavior of this function consistent across browsers
				// WebKit always returns auto if the element is positioned
				position = elem.css('position');
				if (position == 'absolute' || position == 'relative' || position == 'fixed')
				{
					// IE returns 0 when zIndex is not specified
					// other browsers return a string
					// we ignore the case of nested elements with an explicit value of 0
					// <div style="z-index: -10;"><div style="z-index: 0;"></div></div>
					value = parseInt(elem.css('zIndex'));
					if (!isNaN(value) && value != 0) {
						return value;
					}
				}
				elem = elem.parent();
			}
		}

		return 0;
	}
});


//Additional selectors
$.extend($.expr[':'], {
	data: function(elem, i, match) {
		return !!$.data(elem, match[3]);
	},

	focusable: function(element) {
		var nodeName = element.nodeName.toLowerCase(),
			tabIndex = $.attr(element, 'tabindex');
		return (/input|select|textarea|button|object/.test(nodeName)
			? !element.disabled
			: 'a' == nodeName || 'area' == nodeName
				? element.href || !isNaN(tabIndex)
				: !isNaN(tabIndex))
			// the element and all of its ancestors must be visible
			// the browser may report that the area is hidden
			&& !$(element)['area' == nodeName ? 'parents' : 'closest'](':hidden').length;
	},

	tabbable: function(element) {
		var tabIndex = $.attr(element, 'tabindex');
		return (isNaN(tabIndex) || tabIndex >= 0) && $(element).is(':focusable');
	}
});

})(jQuery);
/*!
 * jQuery UI Widget 1.8.2
 *
 * Copyright (c) 2010 AUTHORS.txt (http://jqueryui.com/about)
 * Dual licensed under the MIT (MIT-LICENSE.txt)
 * and GPL (GPL-LICENSE.txt) licenses.
 *
 * http://docs.jquery.com/UI/Widget
 */
(function( $ ) {

var _remove = $.fn.remove;

$.fn.remove = function( selector, keepData ) {
	return this.each(function() {
		if ( !keepData ) {
			if ( !selector || $.filter( selector, [ this ] ).length ) {
				$( "*", this ).add( this ).each(function() {
					$( this ).triggerHandler( "remove" );
				});
			}
		}
		return _remove.call( $(this), selector, keepData );
	});
};

$.widget = function( name, base, prototype ) {
	var namespace = name.split( "." )[ 0 ],
		fullName;
	name = name.split( "." )[ 1 ];
	fullName = namespace + "-" + name;

	if ( !prototype ) {
		prototype = base;
		base = $.Widget;
	}

	// create selector for plugin
	$.expr[ ":" ][ fullName ] = function( elem ) {
		return !!$.data( elem, name );
	};

	$[ namespace ] = $[ namespace ] || {};
	$[ namespace ][ name ] = function( options, element ) {
		// allow instantiation without initializing for simple inheritance
		if ( arguments.length ) {
			this._createWidget( options, element );
		}
	};

	var basePrototype = new base();
	// we need to make the options hash a property directly on the new instance
	// otherwise we'll modify the options hash on the prototype that we're
	// inheriting from
//	$.each( basePrototype, function( key, val ) {
//		if ( $.isPlainObject(val) ) {
//			basePrototype[ key ] = $.extend( {}, val );
//		}
//	});
	basePrototype.options = $.extend( {}, basePrototype.options );
	$[ namespace ][ name ].prototype = $.extend( true, basePrototype, {
		namespace: namespace,
		widgetName: name,
		widgetEventPrefix: $[ namespace ][ name ].prototype.widgetEventPrefix || name,
		widgetBaseClass: fullName
	}, prototype );

	$.widget.bridge( name, $[ namespace ][ name ] );
};

$.widget.bridge = function( name, object ) {
	$.fn[ name ] = function( options ) {
		var isMethodCall = typeof options === "string",
			args = Array.prototype.slice.call( arguments, 1 ),
			returnValue = this;

		// allow multiple hashes to be passed on init
		options = !isMethodCall && args.length ?
			$.extend.apply( null, [ true, options ].concat(args) ) :
			options;

		// prevent calls to internal methods
		if ( isMethodCall && options.substring( 0, 1 ) === "_" ) {
			return returnValue;
		}

		if ( isMethodCall ) {
			this.each(function() {
				var instance = $.data( this, name ),
					methodValue = instance && $.isFunction( instance[options] ) ?
						instance[ options ].apply( instance, args ) :
						instance;
				if ( methodValue !== instance && methodValue !== undefined ) {
					returnValue = methodValue;
					return false;
				}
			});
		} else {
			this.each(function() {
				var instance = $.data( this, name );
				if ( instance ) {
					if ( options ) {
						instance.option( options );
					}
					instance._init();
				} else {
					$.data( this, name, new object( options, this ) );
				}
			});
		}

		return returnValue;
	};
};

$.Widget = function( options, element ) {
	// allow instantiation without initializing for simple inheritance
	if ( arguments.length ) {
		this._createWidget( options, element );
	}
};

$.Widget.prototype = {
	widgetName: "widget",
	widgetEventPrefix: "",
	options: {
		disabled: false
	},
	_createWidget: function( options, element ) {
		// $.widget.bridge stores the plugin instance, but we do it anyway
		// so that it's stored even before the _create function runs
		this.element = $( element ).data( this.widgetName, this );
		this.options = $.extend( true, {},
			this.options,
			$.metadata && $.metadata.get( element )[ this.widgetName ],
			options );

		var self = this;
		this.element.bind( "remove." + this.widgetName, function() {
			self.destroy();
		});

		this._create();
		this._init();
	},
	_create: function() {},
	_init: function() {},

	destroy: function() {
		this.element
			.unbind( "." + this.widgetName )
			.removeData( this.widgetName );
		this.widget()
			.unbind( "." + this.widgetName )
			.removeAttr( "aria-disabled" )
			.removeClass(
				this.widgetBaseClass + "-disabled " +
				"ui-state-disabled" );
	},

	widget: function() {
		return this.element;
	},

	option: function( key, value ) {
		var options = key,
			self = this;

		if ( arguments.length === 0 ) {
			// don't return a reference to the internal hash
			return $.extend( {}, self.options );
		}

		if  (typeof key === "string" ) {
			if ( value === undefined ) {
				return this.options[ key ];
			}
			options = {};
			options[ key ] = value;
		}

		$.each( options, function( key, value ) {
			self._setOption( key, value );
		});

		return self;
	},
	_setOption: function( key, value ) {
		this.options[ key ] = value;

		if ( key === "disabled" ) {
			this.widget()
				[ value ? "addClass" : "removeClass"](
					this.widgetBaseClass + "-disabled" + " " +
					"ui-state-disabled" )
				.attr( "aria-disabled", value );
		}

		return this;
	},

	enable: function() {
		return this._setOption( "disabled", false );
	},
	disable: function() {
		return this._setOption( "disabled", true );
	},

	_trigger: function( type, event, data ) {
		var callback = this.options[ type ];

		event = $.Event( event );
		event.type = ( type === this.widgetEventPrefix ?
			type :
			this.widgetEventPrefix + type ).toLowerCase();
		data = data || {};

		// copy original event properties over to the new event
		// this would happen if we could call $.event.fix instead of $.Event
		// but we don't have a way to force an event to be fixed multiple times
		if ( event.originalEvent ) {
			for ( var i = $.event.props.length, prop; i; ) {
				prop = $.event.props[ --i ];
				event[ prop ] = event.originalEvent[ prop ];
			}
		}

		this.element.trigger( event, data );

		return !( $.isFunction(callback) &&
			callback.call( this.element[0], event, data ) === false ||
			event.isDefaultPrevented() );
	}
};

})( jQuery );
/*
 * jQuery UI Position 1.8.2
 *
 * Copyright (c) 2010 AUTHORS.txt (http://jqueryui.com/about)
 * Dual licensed under the MIT (MIT-LICENSE.txt)
 * and GPL (GPL-LICENSE.txt) licenses.
 *
 * http://docs.jquery.com/UI/Position
 */
(function( $ ) {

$.ui = $.ui || {};

var horizontalPositions = /left|center|right/,
	horizontalDefault = "center",
	verticalPositions = /top|center|bottom/,
	verticalDefault = "center",
	_position = $.fn.position,
	_offset = $.fn.offset;

$.fn.position = function( options ) {
	if ( !options || !options.of ) {
		return _position.apply( this, arguments );
	}

	// make a copy, we don't want to modify arguments
	options = $.extend( {}, options );

	var target = $( options.of ),
		collision = ( options.collision || "flip" ).split( " " ),
		offset = options.offset ? options.offset.split( " " ) : [ 0, 0 ],
		targetWidth,
		targetHeight,
		basePosition;

	if ( options.of.nodeType === 9 ) {
		targetWidth = target.width();
		targetHeight = target.height();
		basePosition = { top: 0, left: 0 };
	} else if ( options.of.scrollTo && options.of.document ) {
		targetWidth = target.width();
		targetHeight = target.height();
		basePosition = { top: target.scrollTop(), left: target.scrollLeft() };
	} else if ( options.of.preventDefault ) {
		// force left top to allow flipping
		options.at = "left top";
		targetWidth = targetHeight = 0;
		basePosition = { top: options.of.pageY, left: options.of.pageX };
	} else {
		targetWidth = target.outerWidth();
		targetHeight = target.outerHeight();
		basePosition = target.offset();
	}

	// force my and at to have valid horizontal and veritcal positions
	// if a value is missing or invalid, it will be converted to center 
	$.each( [ "my", "at" ], function() {
		var pos = ( options[this] || "" ).split( " " );
		if ( pos.length === 1) {
			pos = horizontalPositions.test( pos[0] ) ?
				pos.concat( [verticalDefault] ) :
				verticalPositions.test( pos[0] ) ?
					[ horizontalDefault ].concat( pos ) :
					[ horizontalDefault, verticalDefault ];
		}
		pos[ 0 ] = horizontalPositions.test( pos[0] ) ? pos[ 0 ] : horizontalDefault;
		pos[ 1 ] = verticalPositions.test( pos[1] ) ? pos[ 1 ] : verticalDefault;
		options[ this ] = pos;
	});

	// normalize collision option
	if ( collision.length === 1 ) {
		collision[ 1 ] = collision[ 0 ];
	}

	// normalize offset option
	offset[ 0 ] = parseInt( offset[0], 10 ) || 0;
	if ( offset.length === 1 ) {
		offset[ 1 ] = offset[ 0 ];
	}
	offset[ 1 ] = parseInt( offset[1], 10 ) || 0;

	if ( options.at[0] === "right" ) {
		basePosition.left += targetWidth;
	} else if (options.at[0] === horizontalDefault ) {
		basePosition.left += targetWidth / 2;
	}

	if ( options.at[1] === "bottom" ) {
		basePosition.top += targetHeight;
	} else if ( options.at[1] === verticalDefault ) {
		basePosition.top += targetHeight / 2;
	}

	basePosition.left += offset[ 0 ];
	basePosition.top += offset[ 1 ];

	return this.each(function() {
		var elem = $( this ),
			elemWidth = elem.outerWidth(),
			elemHeight = elem.outerHeight(),
			position = $.extend( {}, basePosition );

		if ( options.my[0] === "right" ) {
			position.left -= elemWidth;
		} else if ( options.my[0] === horizontalDefault ) {
			position.left -= elemWidth / 2;
		}

		if ( options.my[1] === "bottom" ) {
			position.top -= elemHeight;
		} else if ( options.my[1] === verticalDefault ) {
			position.top -= elemHeight / 2;
		}

		// prevent fractions (see #5280)
		position.left = parseInt( position.left );
		position.top = parseInt( position.top );

		$.each( [ "left", "top" ], function( i, dir ) {
			if ( $.ui.position[ collision[i] ] ) {
				$.ui.position[ collision[i] ][ dir ]( position, {
					targetWidth: targetWidth,
					targetHeight: targetHeight,
					elemWidth: elemWidth,
					elemHeight: elemHeight,
					offset: offset,
					my: options.my,
					at: options.at
				});
			}
		});

		if ( $.fn.bgiframe ) {
			elem.bgiframe();
		}
		elem.offset( $.extend( position, { using: options.using } ) );
	});
};

$.ui.position = {
	fit: {
		left: function( position, data ) {
			var win = $( window ),
				over = position.left + data.elemWidth - win.width() - win.scrollLeft();
			position.left = over > 0 ? position.left - over : Math.max( 0, position.left );
		},
		top: function( position, data ) {
			var win = $( window ),
				over = position.top + data.elemHeight - win.height() - win.scrollTop();
			position.top = over > 0 ? position.top - over : Math.max( 0, position.top );
		}
	},

	flip: {
		left: function( position, data ) {
			if ( data.at[0] === "center" ) {
				return;
			}
			var win = $( window ),
				over = position.left + data.elemWidth - win.width() - win.scrollLeft(),
				myOffset = data.my[ 0 ] === "left" ?
					-data.elemWidth :
					data.my[ 0 ] === "right" ?
						data.elemWidth :
						0,
				offset = -2 * data.offset[ 0 ];
			position.left += position.left < 0 ?
				myOffset + data.targetWidth + offset :
				over > 0 ?
					myOffset - data.targetWidth + offset :
					0;
		},
		top: function( position, data ) {
			if ( data.at[1] === "center" ) {
				return;
			}
			var win = $( window ),
				over = position.top + data.elemHeight - win.height() - win.scrollTop(),
				myOffset = data.my[ 1 ] === "top" ?
					-data.elemHeight :
					data.my[ 1 ] === "bottom" ?
						data.elemHeight :
						0,
				atOffset = data.at[ 1 ] === "top" ?
					data.targetHeight :
					-data.targetHeight,
				offset = -2 * data.offset[ 1 ];
			position.top += position.top < 0 ?
				myOffset + data.targetHeight + offset :
				over > 0 ?
					myOffset + atOffset + offset :
					0;
		}
	}
};

// offset setter from jQuery 1.4
if ( !$.offset.setOffset ) {
	$.offset.setOffset = function( elem, options ) {
		// set position first, in-case top/left are set even on static elem
		if ( /static/.test( $.curCSS( elem, "position" ) ) ) {
			elem.style.position = "relative";
		}
		var curElem   = $( elem ),
			curOffset = curElem.offset(),
			curTop    = parseInt( $.curCSS( elem, "top",  true ), 10 ) || 0,
			curLeft   = parseInt( $.curCSS( elem, "left", true ), 10)  || 0,
			props     = {
				top:  (options.top  - curOffset.top)  + curTop,
				left: (options.left - curOffset.left) + curLeft
			};
		
		if ( 'using' in options ) {
			options.using.call( elem, props );
		} else {
			curElem.css( props );
		}
	};

	$.fn.offset = function( options ) {
		var elem = this[ 0 ];
		if ( !elem || !elem.ownerDocument ) { return null; }
		if ( options ) { 
			return this.each(function() {
				$.offset.setOffset( this, options );
			});
		}
		return _offset.call( this );
	};
}

}( jQuery ));
/*
 * jQuery UI Autocomplete 1.8.2
 *
 * Copyright (c) 2010 AUTHORS.txt (http://jqueryui.com/about)
 * Dual licensed under the MIT (MIT-LICENSE.txt)
 * and GPL (GPL-LICENSE.txt) licenses.
 *
 * http://docs.jquery.com/UI/Autocomplete
 *
 * Depends:
 *	jquery.ui.core.js
 *	jquery.ui.widget.js
 *	jquery.ui.position.js
 */
(function( $ ) {

$.widget( "ui.autocomplete", {
	options: {
		minLength: 1,
		delay: 300
	},
	_create: function() {
		var self = this,
			doc = this.element[ 0 ].ownerDocument;
		this.element
			.addClass( "ui-autocomplete-input" )
			.attr( "autocomplete", "off" )
			// TODO verify these actually work as intended
			.attr({
				role: "textbox",
				"aria-autocomplete": "list",
				"aria-haspopup": "true"
			})
			.bind( "keydown.autocomplete", function( event ) {
				var keyCode = $.ui.keyCode;
				switch( event.keyCode ) {
				case keyCode.PAGE_UP:
					self._move( "previousPage", event );
					break;
				case keyCode.PAGE_DOWN:
					self._move( "nextPage", event );
					break;
				case keyCode.UP:
					self._move( "previous", event );
					// prevent moving cursor to beginning of text field in some browsers
					event.preventDefault();
					break;
				case keyCode.DOWN:
					self._move( "next", event );
					// prevent moving cursor to end of text field in some browsers
					event.preventDefault();
					break;
				case keyCode.ENTER:
				case keyCode.NUMPAD_ENTER:
					// when menu is open or has focus
					if ( self.menu.active ) {
						event.preventDefault();
					}
					//passthrough - ENTER and TAB both select the current element
				case keyCode.TAB:
					if ( !self.menu.active ) {
						return;
					}
					self.menu.select( event );
					break;
				case keyCode.ESCAPE:
					self.element.val( self.term );
					self.close( event );
					break;
				case keyCode.LEFT:
				case keyCode.RIGHT:
				case keyCode.SHIFT:
				case keyCode.CONTROL:
				case keyCode.ALT:
				case keyCode.COMMAND:
				case keyCode.COMMAND_RIGHT:
				case keyCode.INSERT:
				case keyCode.CAPS_LOCK:
				case keyCode.END:
				case keyCode.HOME:
					// ignore metakeys (shift, ctrl, alt)
					break;
				default:
					// keypress is triggered before the input value is changed
					clearTimeout( self.searching );
					self.searching = setTimeout(function() {
						self.search( null, event );
					}, self.options.delay );
					break;
				}
			})
			.bind( "focus.autocomplete", function() {
				self.selectedItem = null;
				self.previous = self.element.val();
			})
			.bind( "blur.autocomplete", function( event ) {
				clearTimeout( self.searching );
				// clicks on the menu (or a button to trigger a search) will cause a blur event
				self.closing = setTimeout(function() {
					self.close( event );
					self._change( event );
				}, 150 );
			});
		this._initSource();
		this.response = function() {
			return self._response.apply( self, arguments );
		};
		this.menu = $( "<ul></ul>" )
			.addClass( "ui-autocomplete" )
			.appendTo( "body", doc )
			// prevent the close-on-blur in case of a "slow" click on the menu (long mousedown)
			.mousedown(function() {
				// use another timeout to make sure the blur-event-handler on the input was already triggered
				setTimeout(function() {
					clearTimeout( self.closing );
				}, 13);
			})
			.menu({
				focus: function( event, ui ) {
					var item = ui.item.data( "item.autocomplete" );
					if ( false !== self._trigger( "focus", null, { item: item } ) ) {
						// use value to match what will end up in the input, if it was a key event
						if ( /^key/.test(event.originalEvent.type) ) {
							self.element.val( item.value );
						}
					}
				},
				selected: function( event, ui ) {
					var item = ui.item.data( "item.autocomplete" );
					if ( false !== self._trigger( "select", event, { item: item } ) ) {
						self.element.val( item.value );
					}
					self.close( event );
					// only trigger when focus was lost (click on menu)
					var previous = self.previous;
					if ( self.element[0] !== doc.activeElement ) {
						self.element.focus();
						self.previous = previous;
					}
					self.selectedItem = item;
				},
				blur: function( event, ui ) {
					if ( self.menu.element.is(":visible") ) {
						self.element.val( self.term );
					}
				}
			})
			.zIndex( this.element.zIndex() + 1 )
			// workaround for jQuery bug #5781 http://dev.jquery.com/ticket/5781
			.css({ top: 0, left: 0 })
			.hide()
			.data( "menu" );
		if ( $.fn.bgiframe ) {
			 this.menu.element.bgiframe();
		}
	},

	destroy: function() {
		this.element
			.removeClass( "ui-autocomplete-input" )
			.removeAttr( "autocomplete" )
			.removeAttr( "role" )
			.removeAttr( "aria-autocomplete" )
			.removeAttr( "aria-haspopup" );
		this.menu.element.remove();
		$.Widget.prototype.destroy.call( this );
	},

	_setOption: function( key ) {
		$.Widget.prototype._setOption.apply( this, arguments );
		if ( key === "source" ) {
			this._initSource();
		}
	},

	_initSource: function() {
		var array,
			url;
		if ( $.isArray(this.options.source) ) {
			array = this.options.source;
			this.source = function( request, response ) {
				response( $.ui.autocomplete.filter(array, request.term) );
			};
		} else if ( typeof this.options.source === "string" ) {
			url = this.options.source;
			this.source = function( request, response ) {
				$.getJSON( url, request, response );
			};
		} else {
			this.source = this.options.source;
		}
	},

	search: function( value, event ) {
		value = value != null ? value : this.element.val();
		if ( value.length < this.options.minLength ) {
			return this.close( event );
		}

		clearTimeout( this.closing );
		if ( this._trigger("search") === false ) {
			return;
		}

		return this._search( value );
	},

	_search: function( value ) {
		this.term = this.element
			.addClass( "ui-autocomplete-loading" )
			// always save the actual value, not the one passed as an argument
			.val();

		this.source( { term: value }, this.response );
	},

	_response: function( content ) {
		if ( content.length ) {
			content = this._normalize( content );
			this._suggest( content );
			this._trigger( "open" );
		} else {
			this.close();
		}
		this.element.removeClass( "ui-autocomplete-loading" );
	},

	close: function( event ) {
		clearTimeout( this.closing );
		if ( this.menu.element.is(":visible") ) {
			this._trigger( "close", event );
			this.menu.element.hide();
			this.menu.deactivate();
		}
	},
	
	_change: function( event ) {
		if ( this.previous !== this.element.val() ) {
			this._trigger( "change", event, { item: this.selectedItem } );
		}
	},

	_normalize: function( items ) {
		// assume all items have the right format when the first item is complete
		if ( items.length && items[0].label && items[0].value ) {
			return items;
		}
		return $.map( items, function(item) {
			if ( typeof item === "string" ) {
				return {
					label: item,
					value: item
				};
			}
			return $.extend({
				label: item.label || item.value,
				value: item.value || item.label
			}, item );
		});
	},

	_suggest: function( items ) {
		var ul = this.menu.element
				.empty()
				.zIndex( this.element.zIndex() + 1 ),
			menuWidth,
			textWidth;
		this._renderMenu( ul, items );
		// TODO refresh should check if the active item is still in the dom, removing the need for a manual deactivate
		this.menu.deactivate();
		this.menu.refresh();
		this.menu.element.show().position({
			my: "left top",
			at: "left bottom",
			of: this.element,
			collision: "none"
		});

		menuWidth = ul.width( "" ).width();
		textWidth = this.element.width();
		ul.width( Math.max( menuWidth, textWidth ) );
	},
	
	_renderMenu: function( ul, items ) {
		var self = this;
		$.each( items, function( index, item ) {
			self._renderItem( ul, item );
		});
	},

	_renderItem: function( ul, item) {
		return $( "<li></li>" )
			.data( "item.autocomplete", item )
			.append( "<a>" + item.label + "</a>" )
			.appendTo( ul );
	},

	_move: function( direction, event ) {
		if ( !this.menu.element.is(":visible") ) {
			this.search( null, event );
			return;
		}
		if ( this.menu.first() && /^previous/.test(direction) ||
				this.menu.last() && /^next/.test(direction) ) {
			this.element.val( this.term );
			this.menu.deactivate();
			return;
		}
		this.menu[ direction ]( event );
	},

	widget: function() {
		return this.menu.element;
	}
});

$.extend( $.ui.autocomplete, {
	escapeRegex: function( value ) {
		return value.replace( /([\^\$\(\)\[\]\{\}\*\.\+\?\|\\])/gi, "\\$1" );
	},
	filter: function(array, term) {
		var matcher = new RegExp( $.ui.autocomplete.escapeRegex(term), "i" );
		return $.grep( array, function(value) {
			return matcher.test( value.label || value.value || value );
		});
	}
});

}( jQuery ));

/*
 * jQuery UI Menu (not officially released)
 * 
 * This widget isn't yet finished and the API is subject to change. We plan to finish
 * it for the next release. You're welcome to give it a try anyway and give us feedback,
 * as long as you're okay with migrating your code later on. We can help with that, too.
 *
 * Copyright (c) 2010 AUTHORS.txt (http://jqueryui.com/about)
 * Dual licensed under the MIT (MIT-LICENSE.txt)
 * and GPL (GPL-LICENSE.txt) licenses.
 *
 * http://docs.jquery.com/UI/Menu
 *
 * Depends:
 *	jquery.ui.core.js
 *  jquery.ui.widget.js
 */
(function($) {

$.widget("ui.menu", {
	_create: function() {
		var self = this;
		this.element
			.addClass("ui-menu ui-widget ui-widget-content ui-corner-all")
			.attr({
				role: "listbox",
				"aria-activedescendant": "ui-active-menuitem"
			})
			.click(function( event ) {
				if ( !$( event.target ).closest( ".ui-menu-item a" ).length ) {
					return;
				}
				// temporary
				event.preventDefault();
				self.select( event );
			});
		this.refresh();
	},
	
	refresh: function() {
		var self = this;

		// don't refresh list items that are already adapted
		var items = this.element.children("li:not(.ui-menu-item):has(a)")
			.addClass("ui-menu-item")
			.attr("role", "menuitem");
		
		items.children("a")
			.addClass("ui-corner-all")
			.attr("tabindex", -1)
			// mouseenter doesn't work with event delegation
			.mouseenter(function( event ) {
				self.activate( event, $(this).parent() );
			})
			.mouseleave(function() {
				self.deactivate();
			});
	},

	activate: function( event, item ) {
		this.deactivate();
		if (this.hasScroll()) {
			var offset = item.offset().top - this.element.offset().top,
				scroll = this.element.attr("scrollTop"),
				elementHeight = this.element.height();
			if (offset < 0) {
				this.element.attr("scrollTop", scroll + offset);
			} else if (offset > elementHeight) {
				this.element.attr("scrollTop", scroll + offset - elementHeight + item.height());
			}
		}
		this.active = item.eq(0)
			.children("a")
				.addClass("ui-state-hover")
				.attr("id", "ui-active-menuitem")
			.end();
		this._trigger("focus", event, { item: item });
	},

	deactivate: function() {
		if (!this.active) { return; }

		this.active.children("a")
			.removeClass("ui-state-hover")
			.removeAttr("id");
		this._trigger("blur");
		this.active = null;
	},

	next: function(event) {
		this.move("next", ".ui-menu-item:first", event);
	},

	previous: function(event) {
		this.move("prev", ".ui-menu-item:last", event);
	},

	first: function() {
		return this.active && !this.active.prev().length;
	},

	last: function() {
		return this.active && !this.active.next().length;
	},

	move: function(direction, edge, event) {
		if (!this.active) {
			this.activate(event, this.element.children(edge));
			return;
		}
		var next = this.active[direction + "All"](".ui-menu-item").eq(0);
		if (next.length) {
			this.activate(event, next);
		} else {
			this.activate(event, this.element.children(edge));
		}
	},

	// TODO merge with previousPage
	nextPage: function(event) {
		if (this.hasScroll()) {
			// TODO merge with no-scroll-else
			if (!this.active || this.last()) {
				this.activate(event, this.element.children(":first"));
				return;
			}
			var base = this.active.offset().top,
				height = this.element.height(),
				result = this.element.children("li").filter(function() {
					var close = $(this).offset().top - base - height + $(this).height();
					// TODO improve approximation
					return close < 10 && close > -10;
				});

			// TODO try to catch this earlier when scrollTop indicates the last page anyway
			if (!result.length) {
				result = this.element.children(":last");
			}
			this.activate(event, result);
		} else {
			this.activate(event, this.element.children(!this.active || this.last() ? ":first" : ":last"));
		}
	},

	// TODO merge with nextPage
	previousPage: function(event) {
		if (this.hasScroll()) {
			// TODO merge with no-scroll-else
			if (!this.active || this.first()) {
				this.activate(event, this.element.children(":last"));
				return;
			}

			var base = this.active.offset().top,
				height = this.element.height();
				result = this.element.children("li").filter(function() {
					var close = $(this).offset().top - base + height - $(this).height();
					// TODO improve approximation
					return close < 10 && close > -10;
				});

			// TODO try to catch this earlier when scrollTop indicates the last page anyway
			if (!result.length) {
				result = this.element.children(":first");
			}
			this.activate(event, result);
		} else {
			this.activate(event, this.element.children(!this.active || this.first() ? ":last" : ":first"));
		}
	},

	hasScroll: function() {
		return this.element.height() < this.element.attr("scrollHeight");
	},

	select: function( event ) {
		this._trigger("selected", event, { item: this.active });
	}
});

}(jQuery));