/*!
 * jQuery UI @VERSION
 *
 * Copyright 2011, AUTHORS.txt (http://jqueryui.com/about)
 * Dual licensed under the MIT or GPL Version 2 licenses.
 * http://jquery.org/license
 *
 * http://docs.jquery.com/UI
 */
(function( $, undefined ) {

// 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;
}

$.extend( $.ui, {
	version: "@VERSION",

	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
	}
});

// plugins
$.fn.extend({
	propAttr: $.fn.prop || $.fn.attr,

	_focus: $.fn.focus,
	focus: function( delay, fn ) {
		return typeof delay === "number" ?
			this.each(function() {
				var elem = this;
				setTimeout(function() {
					$( elem ).focus();
					if ( fn ) {
						fn.call( elem );
					}
				}, delay );
			}) :
			this._focus.apply( this, arguments );
	},

	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" ), 10 );
					if ( !isNaN( value ) && value !== 0 ) {
						return value;
					}
				}
				elem = elem.parent();
			}
		}

		return 0;
	},

	disableSelection: function() {
		return this.bind( ( $.support.selectstart ? "selectstart" : "mousedown" ) +
			".ui-disableSelection", function( event ) {
				event.preventDefault();
			});
	},

	enableSelection: function() {
		return this.unbind( ".ui-disableSelection" );
	}
});

$.each( [ "Width", "Height" ], function( i, name ) {
	var side = name === "Width" ? [ "Left", "Right" ] : [ "Top", "Bottom" ],
		type = name.toLowerCase(),
		orig = {
			innerWidth: $.fn.innerWidth,
			innerHeight: $.fn.innerHeight,
			outerWidth: $.fn.outerWidth,
			outerHeight: $.fn.outerHeight
		};

	function reduce( elem, size, border, margin ) {
		$.each( side, function() {
			size -= parseFloat( $.curCSS( elem, "padding" + this, true) ) || 0;
			if ( border ) {
				size -= parseFloat( $.curCSS( elem, "border" + this + "Width", true) ) || 0;
			}
			if ( margin ) {
				size -= parseFloat( $.curCSS( elem, "margin" + this, true) ) || 0;
			}
		});
		return size;
	}

	$.fn[ "inner" + name ] = function( size ) {
		if ( size === undefined ) {
			return orig[ "inner" + name ].call( this );
		}

		return this.each(function() {
			$( this ).css( type, reduce( this, size ) + "px" );
		});
	};

	$.fn[ "outer" + name] = function( size, margin ) {
		if ( typeof size !== "number" ) {
			return orig[ "outer" + name ].call( this, size );
		}

		return this.each(function() {
			$( this).css( type, reduce( this, size, true, margin ) + "px" );
		});
	};
});

// selectors
function focusable( element, isTabIndexNotNaN ) {
	var nodeName = element.nodeName.toLowerCase();
	if ( "area" === nodeName ) {
		var map = element.parentNode,
			mapName = map.name,
			img;
		if ( !element.href || !mapName || map.nodeName.toLowerCase() !== "map" ) {
			return false;
		}
		img = $( "img[usemap=#" + mapName + "]" )[0];
		return !!img && visible( img );
	}
	return ( /input|select|textarea|button|object/.test( nodeName )
		? !element.disabled
		: "a" == nodeName
			? element.href || isTabIndexNotNaN
			: isTabIndexNotNaN)
		// the element and all of its ancestors must be visible
		&& visible( element );
}

function visible( element ) {
	return !$( element ).parents().andSelf().filter(function() {
		return $.curCSS( this, "visibility" ) === "hidden" ||
			$.expr.filters.hidden( this );
	}).length;
}

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

	focusable: function( element ) {
		return focusable( element, !isNaN( $.attr( element, "tabindex" ) ) );
	},

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

// support
$(function() {
	var body = document.body,
		div = body.appendChild( div = document.createElement( "div" ) );

	$.extend( div.style, {
		minHeight: "100px",
		height: "auto",
		padding: 0,
		borderWidth: 0
	});

	$.support.minHeight = div.offsetHeight === 100;
	$.support.selectstart = "onselectstart" in div;

	// set display to none to avoid a layout bug in IE
	// http://dev.jquery.com/ticket/4014
	body.removeChild( div ).style.display = "none";
});





// deprecated
$.extend( $.ui, {
	// $.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 );
				}
			}
		}
	},
	
	// will be deprecated when we switch to jQuery 1.4 - use jQuery.contains()
	contains: function( a, b ) {
		return document.compareDocumentPosition ?
			a.compareDocumentPosition( b ) & 16 :
			a !== b && a.contains( b );
	},
	
	// only used by resizable
	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;
	},
	
	// these are odd functions, fix the API or move into individual plugins
	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 );
	}
});

})( jQuery );

/*!
 * jQuery UI Widget @VERSION
 *
 * Copyright 2011, AUTHORS.txt (http://jqueryui.com/about)
 * Dual licensed under the MIT or GPL Version 2 licenses.
 * http://jquery.org/license
 *
 * http://docs.jquery.com/UI/Widget
 */
(function( $, undefined ) {

// jQuery 1.4+
if ( $.cleanData ) {
	var _cleanData = $.cleanData;
	$.cleanData = function( elems ) {
		for ( var i = 0, elem; (elem = elems[i]) != null; i++ ) {
			try {
				$( elem ).triggerHandler( "remove" );
			// http://bugs.jquery.com/ticket/8235
			} catch( e ) {}
		}
		_cleanData( elems );
	};
} else {
	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() {
						try {
							$( this ).triggerHandler( "remove" );
						// http://bugs.jquery.com/ticket/8235
						} catch( e ) {}
					});
				}
			}
			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( true, {}, 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.charAt( 0 ) === "_" ) {
			return returnValue;
		}

		if ( isMethodCall ) {
			this.each(function() {
				var instance = $.data( this, name ),
					methodValue = instance && $.isFunction( instance[options] ) ?
						instance[ options ].apply( instance, args ) :
						instance;
				// TODO: add this back in 1.9 and use $.error() (see #5972)
//				if ( !instance ) {
//					throw "cannot call methods on " + name + " prior to initialization; " +
//						"attempted to call method '" + options + "'";
//				}
//				if ( !$.isFunction( instance[options] ) ) {
//					throw "no such method '" + options + "' for " + name + " widget instance";
//				}
//				var methodValue = instance[ options ].apply( instance, args );
				if ( methodValue !== instance && methodValue !== undefined ) {
					returnValue = methodValue;
					return false;
				}
			});
		} else {
			this.each(function() {
				var instance = $.data( this, name );
				if ( instance ) {
					instance.option( options || {} )._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
		$.data( element, this.widgetName, this );
		this.element = $( element );
		this.options = $.extend( true, {},
			this.options,
			this._getCreateOptions(),
			options );

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

		this._create();
		this._trigger( "create" );
		this._init();
	},
	_getCreateOptions: function() {
		return $.metadata && $.metadata.get( this.element[0] )[ this.widgetName ];
	},
	_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;

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

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

		this._setOptions( options );

		return this;
	},
	_setOptions: function( options ) {
		var self = this;
		$.each( options, function( key, value ) {
			self._setOption( key, value );
		});

		return this;
	},
	_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 @VERSION
 *
 * Copyright 2011, AUTHORS.txt (http://jqueryui.com/about)
 * Dual licensed under the MIT or GPL Version 2 licenses.
 * http://jquery.org/license
 *
 * http://docs.jquery.com/UI/Position
 */
(function( $, undefined ) {

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

var horizontalPositions = /left|center|right/,
	verticalPositions = /top|center|bottom/,
	center = "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 ),
		targetElem = target[0],
		collision = ( options.collision || "flip" ).split( " " ),
		offset = options.offset ? options.offset.split( " " ) : [ 0, 0 ],
		targetWidth,
		targetHeight,
		basePosition;

	if ( targetElem.nodeType === 9 ) {
		targetWidth = target.width();
		targetHeight = target.height();
		basePosition = { top: 0, left: 0 };
	// TODO: use $.isWindow() in 1.9
	} else if ( targetElem.setTimeout ) {
		targetWidth = target.width();
		targetHeight = target.height();
		basePosition = { top: target.scrollTop(), left: target.scrollLeft() };
	} else if ( targetElem.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( [center] ) :
				verticalPositions.test( pos[0] ) ?
					[ center ].concat( pos ) :
					[ center, center ];
		}
		pos[ 0 ] = horizontalPositions.test( pos[0] ) ? pos[ 0 ] : center;
		pos[ 1 ] = verticalPositions.test( pos[1] ) ? pos[ 1 ] : center;
		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] === center ) {
		basePosition.left += targetWidth / 2;
	}

	if ( options.at[1] === "bottom" ) {
		basePosition.top += targetHeight;
	} else if ( options.at[1] === center ) {
		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(),
			marginLeft = parseInt( $.curCSS( this, "marginLeft", true ) ) || 0,
			marginTop = parseInt( $.curCSS( this, "marginTop", true ) ) || 0,
			collisionWidth = elemWidth + marginLeft +
				( parseInt( $.curCSS( this, "marginRight", true ) ) || 0 ),
			collisionHeight = elemHeight + marginTop +
				( parseInt( $.curCSS( this, "marginBottom", true ) ) || 0 ),
			position = $.extend( {}, basePosition ),
			collisionPosition;

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

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

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

		collisionPosition = {
			left: position.left - marginLeft,
			top: position.top - marginTop
		};

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

	flip: {
		left: function( position, data ) {
			if ( data.at[0] === center ) {
				return;
			}
			var win = $( window ),
				over = data.collisionPosition.left + data.collisionWidth - win.width() - win.scrollLeft(),
				myOffset = data.my[ 0 ] === "left" ?
					-data.elemWidth :
					data.my[ 0 ] === "right" ?
						data.elemWidth :
						0,
				atOffset = data.at[ 0 ] === "left" ?
					data.targetWidth :
					-data.targetWidth,
				offset = -2 * data.offset[ 0 ];
			position.left += data.collisionPosition.left < 0 ?
				myOffset + atOffset + offset :
				over > 0 ?
					myOffset + atOffset + offset :
					0;
		},
		top: function( position, data ) {
			if ( data.at[1] === center ) {
				return;
			}
			var win = $( window ),
				over = data.collisionPosition.top + data.collisionHeight - 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 += data.collisionPosition.top < 0 ?
				myOffset + atOffset + 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 selectmenu dev version
 *
 * Copyright (c) 2009 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
 * https://github.com/fnagel/jquery-ui/wiki/Selectmenu
 */

(function($) {

$.widget("ui.selectmenu", {
	getter: "value",
	version: "1.8",
	eventPrefix: "selectmenu",
	options: {
		transferClasses: true,
		typeAhead: "sequential",
		style: 'dropdown',
		positionOptions: {
			my: "left top",
			at: "left bottom",
			offset: null
		},
		width: null,
		menuWidth: null,
		handleWidth: 26,
		maxHeight: null,
		icons: null,
		format: null,
		bgImage: function() {},
		wrapperElement: "<div />"
	},

	_create: function() {
		var self = this, o = this.options;

		// set a default id value, generate a new random one if not set by developer
		var selectmenuId = (this.element.attr( 'id' ) || 'ui-selectmenu-' + Math.random().toString( 16 ).slice( 2, 10 )).replace(':', '\\:');
		
		// quick array of button and menu id's
		this.ids = [ selectmenuId, selectmenuId + '-button', selectmenuId + '-menu' ];

		// define safe mouseup for future toggling
		this._safemouseup = true;
		this.isOpen = false;

		// create menu button wrapper
		this.newelement = $( '<a />', {
			'class': this.widgetBaseClass + ' ui-widget ui-state-default ui-corner-all',
			'id' : this.ids[ 1 ],
			'role': 'button',
			'href': '#nogo',
			'tabindex': this.element.attr( 'disabled' ) ? 1 : 0,
			'aria-haspopup': true,
			'aria-owns': this.ids[ 2 ]
		});
		this.newelementWrap = $( o.wrapperElement )
			.append( this.newelement )
			.insertAfter( this.element );
		
		// transfer tabindex
		var tabindex = this.element.attr( 'tabindex' );
		if ( tabindex ) {
			this.newelement.attr( 'tabindex', tabindex );
		}

		// save reference to select in data for ease in calling methods
		this.newelement.data( 'selectelement', this.element );

		// menu icon
		this.selectmenuIcon = $( '<span class="' + this.widgetBaseClass + '-icon ui-icon"></span>' )
			.prependTo( this.newelement );

		// append status span to button
		this.newelement.prepend( '<span class="' + self.widgetBaseClass + '-status" />' );

		// make associated form label trigger focus
		this.element.bind({
			'click.selectmenu':  function( event ) {
				self.newelement.focus();
				event.preventDefault();
			}
		});
		
		// click toggle for menu visibility
		this.newelement
			.bind('mousedown.selectmenu', function(event) {
				self._toggle(event, true);
				// make sure a click won't open/close instantly
				if (o.style == "popup") {
					self._safemouseup = false;
					setTimeout(function() { self._safemouseup = true; }, 300);
				}
				return false;
			})
			.bind('click.selectmenu', function() {
				return false;
			})
			.bind("keydown.selectmenu", function(event) {
				var ret = false;
				switch (event.keyCode) {
					case $.ui.keyCode.ENTER:
						ret = true;
						break;
					case $.ui.keyCode.SPACE:
						self._toggle(event);
						break;
					case $.ui.keyCode.UP:
						if (event.altKey) {
							self.open(event);
						} else {
							self._moveSelection(-1);
						}
						break;
					case $.ui.keyCode.DOWN:
						if (event.altKey) {
							self.open(event);
						} else {
							self._moveSelection(1);
						}
						break;
					case $.ui.keyCode.LEFT:
						self._moveSelection(-1);
						break;
					case $.ui.keyCode.RIGHT:
						self._moveSelection(1);
						break;
					case $.ui.keyCode.TAB:
						ret = true;
						break;
					default:
						ret = true;
				}
				return ret;
			})
			.bind('keypress.selectmenu', function(event) {
				self._typeAhead(event.which, 'mouseup');
				return true;
			})
			.bind('mouseover.selectmenu focus.selectmenu', function() {
				if (!o.disabled) {
					$(this).addClass(self.widgetBaseClass + '-focus ui-state-hover');
				}
			})
			.bind('mouseout.selectmenu blur.selectmenu', function() {
				if (!o.disabled) {
					$(this).removeClass(self.widgetBaseClass + '-focus ui-state-hover');
				}
			});

		// document click closes menu
		$(document).bind("mousedown.selectmenu-" + this.ids[0], function(event) {
			if ( self.isOpen ) {
				self.close( event );
			}
		});

		// change event on original selectmenu
		this.element
			.bind("click.selectmenu", function() {
				self._refreshValue();
			})
			// FIXME: newelement can be null under unclear circumstances in IE8
			// TODO not sure if this is still a problem (fnagel 20.03.11)
			.bind("focus.selectmenu", function() {
				if (self.newelement) {
					self.newelement[0].focus();
				}
			});

		// set width when not set via options
		if (!o.width) {
			o.width = this.element.outerWidth();
		}
		// set menu button width
		this.newelement.width(o.width);

		// hide original selectmenu element
		this.element.hide();

		// create menu portion, append to body		
		this.list = $( '<ul />', {
			'class': 'ui-widget ui-widget-content',
			'aria-hidden': true,
			'role': 'listbox',
			'aria-labelledby': this.ids[1],
			'id': this.ids[2]
		});
		this.listWrap = $( o.wrapperElement )
			.addClass( self.widgetBaseClass + '-menu' )
			.append( this.list )
			.appendTo( 'body' );
		
		// transfer menu click to menu button
		this.list
			.bind("keydown.selectmenu", function(event) {
				var ret = false;
				switch (event.keyCode) {
					case $.ui.keyCode.UP:
						if (event.altKey) {
							self.close(event, true);
						} else {
							self._moveFocus(-1);
						}
						break;
					case $.ui.keyCode.DOWN:
						if (event.altKey) {
							self.close(event, true);
						} else {
							self._moveFocus(1);
						}
						break;
					case $.ui.keyCode.LEFT:
						self._moveFocus(-1);
						break;
					case $.ui.keyCode.RIGHT:
						self._moveFocus(1);
						break;
					case $.ui.keyCode.HOME:
						self._moveFocus(':first');
						break;
					case $.ui.keyCode.PAGE_UP:
						self._scrollPage('up');
						break;
					case $.ui.keyCode.PAGE_DOWN:
						self._scrollPage('down');
						break;
					case $.ui.keyCode.END:
						self._moveFocus(':last');
						break;
					case $.ui.keyCode.ENTER:
					case $.ui.keyCode.SPACE:
						self.close(event, true);
						$(event.target).parents('li:eq(0)').trigger('mouseup');
						break;
					case $.ui.keyCode.TAB:
						ret = true;
						self.close(event, true);
						$(event.target).parents('li:eq(0)').trigger('mouseup');
						break;
					case $.ui.keyCode.ESCAPE:
						self.close(event, true);
						break;
					default:
						ret = true;
				}
				return ret;
			})
			.bind('keypress.selectmenu', function(event) {
				self._typeAhead(event.which, 'focus');
				return true;
			})
			// this allows for using the scrollbar in an overflowed list
			.bind( 'mousedown.selectmenu mouseup.selectmenu', function() { return false; });

		// needed when window is resized
		$(window).bind( "resize.selectmenu-" + this.ids[0], $.proxy( self.close, this ) );
	},

	_init: function() {
		var self = this, o = this.options;

		// serialize selectmenu element options
		var selectOptionData = [];
		this.element
			.find('option')
			.each(function() {
				var opt = $(this);
				selectOptionData.push({
					value: opt.attr('value'),
					text: self._formatText(opt.text()),
					selected: opt.attr('selected'),
					disabled: opt.attr('disabled'),
					classes: opt.attr('class'),
					typeahead: opt.attr('typeahead'),
					parentOptGroup: opt.parent('optgroup'),
					bgImage: o.bgImage.call(opt)
				});
			});

		// active state class is only used in popup style
		var activeClass = (self.options.style == "popup") ? " ui-state-active" : "";

		// empty list so we can refresh the selectmenu via selectmenu()
		this.list.html("");

		// write li's
		if (selectOptionData.length) {
			for (var i = 0; i < selectOptionData.length; i++) {
				var thisLiAttr = { role : 'presentation' };
				if ( selectOptionData[ i ].disabled ) {
					thisLiAttr[ 'class' ] = this.namespace + '-state-disabled';
				}					
				var thisAAttr = {
					html: selectOptionData[i].text,
					href : '#nogo', 
					tabindex : -1, 
					role : 'option',
					'aria-selected' : false
				};
				if ( selectOptionData[ i ].disabled ) {
					thisAAttr[ 'aria-disabled' ] = selectOptionData[ i ].disabled;
				}
				if ( selectOptionData[ i ].typeahead ) {
					thisAAttr[ 'typeahead' ] = selectOptionData[ i ].typeahead;
				}				
				var thisA = $('<a/>', thisAAttr);
				var thisLi = $('<li/>', thisLiAttr)	
					.append(thisA)				
					.data('index', i)
					.addClass(selectOptionData[i].classes)
					.data('optionClasses', selectOptionData[i].classes || '')
					.bind("mouseup.selectmenu", function(event) {
						if (self._safemouseup && !self._disabled(event.currentTarget) && !self._disabled($( event.currentTarget ).parents( "ul>li." + self.widgetBaseClass + "-group " )) ) {
							var changed = $(this).data('index') != self._selectedIndex();
							self.index($(this).data('index'));
							self.select(event);
							if (changed) {
								self.change(event);
							}
							self.close(event, true);
						}
						return false;
					})
					.bind("click.selectmenu", function() {
						return false;
					})
					.bind('mouseover.selectmenu focus.selectmenu', function(e) {
						// no hover if diabled
						if (!$(e.currentTarget).hasClass(self.namespace + '-state-disabled') && !$(e.currentTarget).parent("ul").parent("li").hasClass(self.namespace + '-state-disabled')) {
							self._selectedOptionLi().addClass(activeClass);
							self._focusedOptionLi().removeClass(self.widgetBaseClass + '-item-focus ui-state-hover');
							$(this).removeClass('ui-state-active').addClass(self.widgetBaseClass + '-item-focus ui-state-hover');
						}
					})
					.bind('mouseout.selectmenu blur.selectmenu', function() {
						if ($(this).is(self._selectedOptionLi().selector)) {
							$(this).addClass(activeClass);
						}
						$(this).removeClass(self.widgetBaseClass + '-item-focus ui-state-hover');
					});

				// optgroup or not...
				if ( selectOptionData[i].parentOptGroup.length ) {
					var optGroupName = self.widgetBaseClass + '-group-' + this.element.find( 'optgroup' ).index( selectOptionData[i].parentOptGroup );
					if (this.list.find( 'li.' + optGroupName ).length ) {
						this.list.find( 'li.' + optGroupName + ':last ul' ).append( thisLi );
					} else {
						$(' <li role="presentation" class="' + self.widgetBaseClass + '-group ' + optGroupName + (selectOptionData[i].parentOptGroup.attr("disabled") ? ' ' + this.namespace + '-state-disabled" aria-disabled="true"' : '"' ) + '><span class="' + self.widgetBaseClass + '-group-label">' + selectOptionData[i].parentOptGroup.attr('label') + '</span><ul></ul></li> ')
							.appendTo( this.list )
							.find( 'ul' )
							.append( thisLi );
					}
				} else {
					thisLi.appendTo(this.list);
				}

				// append icon if option is specified
				if (o.icons) {
					for (var j in o.icons) {
						if (thisLi.is(o.icons[j].find)) {
							thisLi
								.data('optionClasses', selectOptionData[i].classes + ' ' + self.widgetBaseClass + '-hasIcon')
								.addClass(self.widgetBaseClass + '-hasIcon');
							var iconClass = o.icons[j].icon || "";
							thisLi
								.find('a:eq(0)')
								.prepend('<span class="' + self.widgetBaseClass + '-item-icon ui-icon ' + iconClass + '"></span>');
							if (selectOptionData[i].bgImage) {
								thisLi.find('span').css('background-image', selectOptionData[i].bgImage);
							}
						}
					}
				}
			}
		} else {
			$('<li role="presentation"><a href="#nogo" tabindex="-1" role="option"></a></li>').appendTo(this.list);
		}
		// we need to set and unset the CSS classes for dropdown and popup style
		var isDropDown = ( o.style == 'dropdown' );
		this.newelement
			.toggleClass( self.widgetBaseClass + '-dropdown', isDropDown )
			.toggleClass( self.widgetBaseClass + '-popup', !isDropDown );
		this.list
			.toggleClass( self.widgetBaseClass + '-menu-dropdown ui-corner-bottom', isDropDown )
			.toggleClass( self.widgetBaseClass + '-menu-popup ui-corner-all', !isDropDown )
			// add corners to top and bottom menu items
			.find( 'li:first' )
			.toggleClass( 'ui-corner-top', !isDropDown )
			.end().find( 'li:last' )
			.addClass( 'ui-corner-bottom' );
		this.selectmenuIcon
			.toggleClass( 'ui-icon-triangle-1-s', isDropDown )
			.toggleClass( 'ui-icon-triangle-2-n-s', !isDropDown );

		// transfer classes to selectmenu and list
		if ( o.transferClasses ) {
			var transferClasses = this.element.attr( 'class' ) || '';
			this.newelement.add( this.list ).addClass( transferClasses );
		}

		// set menu width to either menuWidth option value, width option value, or select width
		if ( o.style == 'dropdown' ) {
			this.list.width( o.menuWidth ? o.menuWidth : o.width );
		} else {
			this.list.width( o.menuWidth ? o.menuWidth : o.width - o.handleWidth );
		}

		// reset height to auto
		this.list.css( 'height', 'auto' );
		var listH = this.listWrap.height();
		// calculate default max height
		if ( o.maxHeight && o.maxHeight < listH ) {
			this.list.height( o.maxHeight );
		} else {
			var winH = $( window ).height() / 3;
			if ( winH < listH ) this.list.height( winH );
		}
		
		// save reference to actionable li's (not group label li's)
		this._optionLis = this.list.find( 'li:not(.' + self.widgetBaseClass + '-group)' );

		// transfer disabled state
		if ( this.element.attr( 'disabled' ) ) {
			this.disable();
		} else {
			this.enable()
		}
		
		// update value
		this.index( this._selectedIndex() );

		// needed when selectmenu is placed at the very bottom / top of the page
		window.setTimeout( function() {
			self._refreshPosition();
		}, 200 );
	},

	destroy: function() {
		this.element.removeData( this.widgetName )
			.removeClass( this.widgetBaseClass + '-disabled' + ' ' + this.namespace + '-state-disabled' )
			.removeAttr( 'aria-disabled' )
			.unbind( ".selectmenu" );

		$( window ).unbind( ".selectmenu-" + this.ids[0] );
		$( document ).unbind( ".selectmenu-" + this.ids[0] );
		
		this.newelementWrap.remove();
		this.listWrap.remove();
		
		// unbind click event and show original select
		this.element
			.unbind(".selectmenu")
			.show();

		// call widget destroy function
		$.Widget.prototype.destroy.apply(this, arguments);
	},

	_typeAhead: function( code, eventType ){
		var self = this, focusFound = false, C = String.fromCharCode(code).toUpperCase();
		c = C.toLowerCase();

		if ( self.options.typeAhead == 'sequential' ) {
			// clear the timeout so we can use _prevChar
			window.clearTimeout('ui.selectmenu-' + self.selectmenuId);

			// define our find var
			var find = typeof( self._prevChar ) == 'undefined' ? '' : self._prevChar.join( '' );

			function focusOptSeq( elem, ind, c ){
				focusFound = true;
				$( elem ).trigger( eventType );
				typeof( self._prevChar ) == 'undefined' ? self._prevChar = [ c ] : self._prevChar[ self._prevChar.length ] = c;
			}
			this.list.find( 'li a' ).each( function( i ) {
				if ( !focusFound ) {
					// allow the typeahead attribute on the option tag for a more specific lookup
					var thisText = $( this ).attr( 'typeahead' ) || $(this).text();
					if ( thisText.indexOf( find + C ) === 0 ) {
						focusOptSeq( this, i, C );
					} else if (thisText.indexOf(find+c) === 0 ) {
						focusOptSeq( this, i, c );
					}
				}
			});
			// set a 1 second timeout for sequenctial typeahead
			// keep this set even if we have no matches so it doesnt typeahead somewhere else
			window.setTimeout( function( el ) {
				self._prevChar = undefined;
			}, 1000, self );

		} else {
			// define self._prevChar if needed
			if ( !self._prevChar ) { self._prevChar = [ '' , 0 ]; }

			focusFound = false;
			function focusOpt( elem, ind ){
				focusFound = true;
				$( elem ).trigger( eventType );
				self._prevChar[ 1 ] = ind;
			}
			this.list.find( 'li a' ).each(function( i ){
				if (!focusFound){
					var thisText = $(this).text();
					if ( thisText.indexOf( C ) === 0 || thisText.indexOf( c ) === 0 ) {
						if (self._prevChar[0] == C){
							if ( self._prevChar[ 1 ] < i ){ focusOpt( this, i ); }
						} else{ 
							focusOpt( this, i ); 
						}
					}
				}
			});
			this._prevChar[ 0 ] = C;
		}
	},

	// returns some usefull information, called by callbacks only
	_uiHash: function() {
		var index = this.index();
		return {
			index: index,
			option: $("option", this.element).get(index),
			value: this.element[0].value
		};
	},

	open: function(event) {
		var self = this, o = this.options;
		if ( self.newelement.attr("aria-disabled") != 'true' ) {
			self._closeOthers(event);
			self.newelement.addClass('ui-state-active');
				
			self.listWrap.appendTo( o.appendTo );
			self.list.attr('aria-hidden', false);			
			self.listWrap.addClass( self.widgetBaseClass + '-open' );
						
			var selected = this._selectedOptionLi();
			if ( o.style == "dropdown" ) {
				self.newelement.removeClass('ui-corner-all').addClass('ui-corner-top');
			} else {				
				// center overflow and avoid flickering
				this.list
					.css("left", -5000)
					.scrollTop( this.list.scrollTop() + selected.position().top - this.list.outerHeight()/2 + selected.outerHeight()/2 )
					.css("left","auto");
			}
			
			self._refreshPosition();	
			
			var link = selected.find("a");
			if (link.length) link[0].focus();		
			
			self.isOpen = true;
			self._trigger("open", event, self._uiHash());
		}
	},

	close: function(event, retainFocus) {
		if ( this.newelement.is('.ui-state-active') ) {
			this.newelement
				.removeClass('ui-state-active');
			this.listWrap.removeClass(this.widgetBaseClass + '-open');
			this.list.attr('aria-hidden', true);
			if ( this.options.style == "dropdown" ) {
				this.newelement.removeClass('ui-corner-top').addClass('ui-corner-all');
			}
			if ( retainFocus ) {
				this.newelement.focus();
			}
			this.isOpen = false;
			this._trigger("close", event, this._uiHash());
		}
	},

	change: function(event) {
		this.element.trigger("change");
		this._trigger("change", event, this._uiHash());
	},

	select: function(event) {
		if (this._disabled(event.currentTarget)) { return false; }
		this._trigger("select", event, this._uiHash());
	},

	_closeOthers: function(event) {
		$('.' + this.widgetBaseClass + '.ui-state-active').not(this.newelement).each(function() {
			$(this).data('selectelement').selectmenu('close', event);
		});
		$('.' + this.widgetBaseClass + '.ui-state-hover').trigger('mouseout');
	},

	_toggle: function(event, retainFocus) {
		if ( this.isOpen ) {
			this.close(event, retainFocus);
		} else {
			this.open(event);
		}
	},

	_formatText: function(text) {
		return (this.options.format ? this.options.format(text) : text);
	},

	_selectedIndex: function() {
		return this.element[0].selectedIndex;
	},

	_selectedOptionLi: function() {
		return this._optionLis.eq(this._selectedIndex());
	},

	_focusedOptionLi: function() {
		return this.list.find('.' + this.widgetBaseClass + '-item-focus');
	},

	_moveSelection: function(amt, recIndex) {
		// do nothing if disabled
		if (!this.options.disabled) {
			var currIndex = parseInt(this._selectedOptionLi().data('index') || 0, 10);
			var newIndex = currIndex + amt;
			// do not loop when using up key

			if (newIndex < 0) {
				newIndex = 0;
			}
			if (newIndex > this._optionLis.size() - 1) {
				newIndex = this._optionLis.size() - 1;
			}
			// Occurs when a full loop has been made
			if (newIndex === recIndex) { return false; }

			if (this._optionLis.eq(newIndex).hasClass( this.namespace + '-state-disabled' )) {
				// if option at newIndex is disabled, call _moveFocus, incrementing amt by one
				(amt > 0) ? ++amt : --amt;
				this._moveSelection(amt, newIndex);
			} else {
				return this._optionLis.eq(newIndex).trigger('mouseup');
			}
		}
	},

	_moveFocus: function(amt, recIndex) {
		if (!isNaN(amt)) {
			var currIndex = parseInt(this._focusedOptionLi().data('index') || 0, 10);
			var newIndex = currIndex + amt;
		} else {
			var newIndex = parseInt(this._optionLis.filter(amt).data('index'), 10);
		}

		if (newIndex < 0) {
			newIndex = 0;
		}
		if (newIndex > this._optionLis.size() - 1) {
			newIndex = this._optionLis.size() - 1;
		}

		//Occurs when a full loop has been made
		if (newIndex === recIndex) { return false; }

		var activeID = this.widgetBaseClass + '-item-' + Math.round(Math.random() * 1000);

		this._focusedOptionLi().find('a:eq(0)').attr('id', '');

		if (this._optionLis.eq(newIndex).hasClass( this.namespace + '-state-disabled' )) {
			// if option at newIndex is disabled, call _moveFocus, incrementing amt by one
			(amt > 0) ? ++amt : --amt;
			this._moveFocus(amt, newIndex);
		} else {
			this._optionLis.eq(newIndex).find('a:eq(0)').attr('id',activeID).focus();
		}

		this.list.attr('aria-activedescendant', activeID);
	},

	_scrollPage: function(direction) {
		var numPerPage = Math.floor(this.list.outerHeight() / this.list.find('li:first').outerHeight());
		numPerPage = (direction == 'up' ? -numPerPage : numPerPage);
		this._moveFocus(numPerPage);
	},

	_setOption: function(key, value) {
		this.options[key] = value;
		// set
		if (key == 'disabled') {
			if (value) this.close();
			this.element
				.add(this.newelement)
				.add(this.list)[value ? 'addClass' : 'removeClass'](
					this.widgetBaseClass + '-disabled' + ' ' +
					this.namespace + '-state-disabled')
				.attr("aria-disabled", value);
		}
	},

	disable: function(index, type){
			// if options is not provided, call the parents disable function
			if ( typeof( index ) == 'undefined' ) {
				this._setOption( 'disabled', true );
			} else {
				if ( type == "optgroup" ) {
					this._disableOptgroup(index);
				} else {
					this._disableOption(index);
				}
			}
	},

	enable: function(index, type) {
			// if options is not provided, call the parents enable function
			if ( typeof( index ) == 'undefined' ) {
				this._setOption('disabled', false);
			} else {
				if ( type == "optgroup" ) {
					this._enableOptgroup(index);
				} else {
					this._enableOption(index);
				}
			}
	},

	_disabled: function(elem) {
			return $(elem).hasClass( this.namespace + '-state-disabled' );
	},


	_disableOption: function(index) {
			var optionElem = this._optionLis.eq(index);
			if (optionElem) {
				optionElem.addClass(this.namespace + '-state-disabled')
					.find("a").attr("aria-disabled", true);
				this.element.find("option").eq(index).attr("disabled", "disabled");
			}
	},

	_enableOption: function(index) {
			var optionElem = this._optionLis.eq(index);
			if (optionElem) {
				optionElem.removeClass( this.namespace + '-state-disabled' )
					.find("a").attr("aria-disabled", false);
				this.element.find("option").eq(index).removeAttr("disabled");
			}
	},

	_disableOptgroup: function(index) {
			var optGroupElem = this.list.find( 'li.' + this.widgetBaseClass + '-group-' + index );
			if (optGroupElem) {
				optGroupElem.addClass(this.namespace + '-state-disabled')
					.attr("aria-disabled", true);
				this.element.find("optgroup").eq(index).attr("disabled", "disabled");
			}
	},

	_enableOptgroup: function(index) {
			var optGroupElem = this.list.find( 'li.' + this.widgetBaseClass + '-group-' + index );
			if (optGroupElem) {
				optGroupElem.removeClass(this.namespace + '-state-disabled')
					.attr("aria-disabled", false);
				this.element.find("optgroup").eq(index).removeAttr("disabled");
			}
	},

	index: function(newValue) {
		if (arguments.length) {
			if (!this._disabled($(this._optionLis[newValue]))) {
				this.element[0].selectedIndex = newValue;
				this._refreshValue();
			} else {
				return false;
			}
		} else {
			return this._selectedIndex();
		}
	},

	value: function(newValue) {
		if (arguments.length) {
			this.element[0].value = newValue;
			this._refreshValue();
		} else {
			return this.element[0].value;
		}
	},

	_refreshValue: function() {
		var activeClass = (this.options.style == "popup") ? " ui-state-active" : "";
		var activeID = this.widgetBaseClass + '-item-' + Math.round(Math.random() * 1000);
		// deselect previous
		this.list
			.find('.' + this.widgetBaseClass + '-item-selected')
			.removeClass(this.widgetBaseClass + "-item-selected" + activeClass)
			.find('a')
			.attr('aria-selected', 'false')
			.attr('id', '');
		// select new
		this._selectedOptionLi()
			.addClass(this.widgetBaseClass + "-item-selected" + activeClass)
			.find('a')
			.attr('aria-selected', 'true')
			.attr('id', activeID);

		// toggle any class brought in from option
		var currentOptionClasses = (this.newelement.data('optionClasses') ? this.newelement.data('optionClasses') : "");
		var newOptionClasses = (this._selectedOptionLi().data('optionClasses') ? this._selectedOptionLi().data('optionClasses') : "");
		this.newelement
			.removeClass(currentOptionClasses)
			.data('optionClasses', newOptionClasses)
			.addClass( newOptionClasses )
			.find('.' + this.widgetBaseClass + '-status')
			.html(
				this._selectedOptionLi()
					.find('a:eq(0)')
					.html()
			);

		this.list.attr('aria-activedescendant', activeID);
	},

	_refreshPosition: function() {
		var o = this.options;

		// if its a pop-up we need to calculate the position of the selected li
		if ( o.style == "popup" && !o.positionOptions.offset ) {
			var selected = this._selectedOptionLi();
			var _offset = "0 " + ( this.list.offset().top  - selected.offset().top - ( this.newelement.outerHeight() + selected.outerHeight() ) / 2);
		}
		// update zIndex if jQuery UI is able to process
		this.listWrap
			.zIndex( this.element.zIndex() + 1 )
			.position({
				// set options for position plugin
				of: o.positionOptions.of || this.newelement,
				my: o.positionOptions.my,
				at: o.positionOptions.at,
				offset: o.positionOptions.offset || _offset,
				collision: o.positionOptions.collision || 'flip'
			});
	}
});

})(jQuery);