/*! jQuery UI - v1.9.2 - 2013-08-28
* http://jqueryui.com
* Includes: jquery.ui.core.js, jquery.ui.widget.js, jquery.ui.mouse.js, jquery.ui.position.js, jquery.ui.draggable.js, jquery.ui.resizable.js, jquery.ui.button.js, jquery.ui.datepicker.js, jquery.ui.dialog.js, jquery.ui.spinner.js
* Copyright 2013 jQuery Foundation and other contributors Licensed MIT */

(function( $, undefined ) {

var uuid = 0,
	runiqueId = /^ui-id-\d+$/;

// 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: "1.9.2",

	keyCode: {
		BACKSPACE: 8,
		COMMA: 188,
		DELETE: 46,
		DOWN: 40,
		END: 35,
		ENTER: 13,
		ESCAPE: 27,
		HOME: 36,
		LEFT: 37,
		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,
		SPACE: 32,
		TAB: 9,
		UP: 38
	}
});

// plugins
$.fn.extend({
	_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 (($.ui.ie && (/(static|relative)/).test(this.css('position'))) || (/absolute/).test(this.css('position'))) {
			scrollParent = this.parents().filter(function() {
				return (/(relative|absolute|fixed)/).test($.css(this,'position')) && (/(auto|scroll)/).test($.css(this,'overflow')+$.css(this,'overflow-y')+$.css(this,'overflow-x'));
			}).eq(0);
		} else {
			scrollParent = this.parents().filter(function() {
				return (/(auto|scroll)/).test($.css(this,'overflow')+$.css(this,'overflow-y')+$.css(this,'overflow-x'));
			}).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;
	},

	uniqueId: function() {
		return this.each(function() {
			if ( !this.id ) {
				this.id = "ui-id-" + (++uuid);
			}
		});
	},

	removeUniqueId: function() {
		return this.each(function() {
			if ( runiqueId.test( this.id ) ) {
				$( this ).removeAttr( "id" );
			}
		});
	}
});

// selectors
function focusable( element, isTabIndexNotNaN ) {
	var map, mapName, img,
		nodeName = element.nodeName.toLowerCase();
	if ( "area" === nodeName ) {
		map = element.parentNode;
		mapName = map.name;
		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 $.expr.filters.visible( element ) &&
		!$( element ).parents().andSelf().filter(function() {
			return $.css( this, "visibility" ) === "hidden";
		}).length;
}

$.extend( $.expr[ ":" ], {
	data: $.expr.createPseudo ?
		$.expr.createPseudo(function( dataName ) {
			return function( elem ) {
				return !!$.data( elem, dataName );
			};
		}) :
		// support: jQuery <1.8
		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" ) );

	// access offsetHeight before setting the style to prevent a layout bug
	// in IE 9 which causes the element to continue to take up space even
	// after it is removed from the DOM (#8026)
	div.offsetHeight;

	$.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";
});

// support: jQuery <1.8
if ( !$( "<a>" ).outerWidth( 1 ).jquery ) {
	$.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( $.css( elem, "padding" + this ) ) || 0;
				if ( border ) {
					size -= parseFloat( $.css( elem, "border" + this + "Width" ) ) || 0;
				}
				if ( margin ) {
					size -= parseFloat( $.css( elem, "margin" + this ) ) || 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" );
			});
		};
	});
}

// support: jQuery 1.6.1, 1.6.2 (http://bugs.jquery.com/ticket/9413)
if ( $( "<a>" ).data( "a-b", "a" ).removeData( "a-b" ).data( "a-b" ) ) {
	$.fn.removeData = (function( removeData ) {
		return function( key ) {
			if ( arguments.length ) {
				return removeData.call( this, $.camelCase( key ) );
			} else {
				return removeData.call( this );
			}
		};
	})( $.fn.removeData );
}





// deprecated

(function() {
	var uaMatch = /msie ([\w.]+)/.exec( navigator.userAgent.toLowerCase() ) || [];
	$.ui.ie = uaMatch.length ? true : false;
	$.ui.ie6 = parseFloat( uaMatch[ 1 ], 10 ) === 6;
})();

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

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

$.extend( $.ui, {
	// $.ui.plugin is deprecated.  Use the proxy pattern instead.
	plugin: {
		add: function( module, option, set ) {
			var i,
				proto = $.ui[ module ].prototype;
			for ( i in set ) {
				proto.plugins[ i ] = proto.plugins[ i ] || [];
				proto.plugins[ i ].push( [ option, set[ i ] ] );
			}
		},
		call: function( instance, name, args ) {
			var i,
				set = instance.plugins[ name ];
			if ( !set || !instance.element[ 0 ].parentNode || instance.element[ 0 ].parentNode.nodeType === 11 ) {
				return;
			}

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

	contains: $.contains,

	// 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 );
(function( $, undefined ) {

var uuid = 0,
	slice = Array.prototype.slice,
	_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 );
};

$.widget = function( name, base, prototype ) {
	var fullName, existingConstructor, constructor, basePrototype,
		namespace = name.split( "." )[ 0 ];

	name = name.split( "." )[ 1 ];
	fullName = namespace + "-" + name;

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

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

	$[ namespace ] = $[ namespace ] || {};
	existingConstructor = $[ namespace ][ name ];
	constructor = $[ namespace ][ name ] = function( options, element ) {
		// allow instantiation without "new" keyword
		if ( !this._createWidget ) {
			return new constructor( options, element );
		}

		// allow instantiation without initializing for simple inheritance
		// must use "new" keyword (the code above always passes args)
		if ( arguments.length ) {
			this._createWidget( options, element );
		}
	};
	// extend with the existing constructor to carry over any static properties
	$.extend( constructor, existingConstructor, {
		version: prototype.version,
		// copy the object used to create the prototype in case we need to
		// redefine the widget later
		_proto: $.extend( {}, prototype ),
		// track widgets that inherit from this widget in case this widget is
		// redefined after a widget inherits from it
		_childConstructors: []
	});

	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
	basePrototype.options = $.widget.extend( {}, basePrototype.options );
	$.each( prototype, function( prop, value ) {
		if ( $.isFunction( value ) ) {
			prototype[ prop ] = (function() {
				var _super = function() {
						return base.prototype[ prop ].apply( this, arguments );
					},
					_superApply = function( args ) {
						return base.prototype[ prop ].apply( this, args );
					};
				return function() {
					var __super = this._super,
						__superApply = this._superApply,
						returnValue;

					this._super = _super;
					this._superApply = _superApply;

					returnValue = value.apply( this, arguments );

					this._super = __super;
					this._superApply = __superApply;

					return returnValue;
				};
			})();
		}
	});
	constructor.prototype = $.widget.extend( basePrototype, {
		// TODO: remove support for widgetEventPrefix
		// always use the name + a colon as the prefix, e.g., draggable:start
		// don't prefix for widgets that aren't DOM-based
		widgetEventPrefix: existingConstructor ? basePrototype.widgetEventPrefix : name
	}, prototype, {
		constructor: constructor,
		namespace: namespace,
		widgetName: name,
		// TODO remove widgetBaseClass, see #8155
		widgetBaseClass: fullName,
		widgetFullName: fullName
	});

	// If this widget is being redefined then we need to find all widgets that
	// are inheriting from it and redefine all of them so that they inherit from
	// the new version of this widget. We're essentially trying to replace one
	// level in the prototype chain.
	if ( existingConstructor ) {
		$.each( existingConstructor._childConstructors, function( i, child ) {
			var childPrototype = child.prototype;

			// redefine the child widget using the same prototype that was
			// originally used, but inherit from the new version of the base
			$.widget( childPrototype.namespace + "." + childPrototype.widgetName, constructor, child._proto );
		});
		// remove the list of existing child constructors from the old constructor
		// so the old child constructors can be garbage collected
		delete existingConstructor._childConstructors;
	} else {
		base._childConstructors.push( constructor );
	}

	$.widget.bridge( name, constructor );
};

$.widget.extend = function( target ) {
	var input = slice.call( arguments, 1 ),
		inputIndex = 0,
		inputLength = input.length,
		key,
		value;
	for ( ; inputIndex < inputLength; inputIndex++ ) {
		for ( key in input[ inputIndex ] ) {
			value = input[ inputIndex ][ key ];
			if ( input[ inputIndex ].hasOwnProperty( key ) && value !== undefined ) {
				// Clone objects
				if ( $.isPlainObject( value ) ) {
					target[ key ] = $.isPlainObject( target[ key ] ) ?
						$.widget.extend( {}, target[ key ], value ) :
						// Don't extend strings, arrays, etc. with objects
						$.widget.extend( {}, value );
				// Copy everything else by reference
				} else {
					target[ key ] = value;
				}
			}
		}
	}
	return target;
};

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

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

		if ( isMethodCall ) {
			this.each(function() {
				var methodValue,
					instance = $.data( this, fullName );
				if ( !instance ) {
					return $.error( "cannot call methods on " + name + " prior to initialization; " +
						"attempted to call method '" + options + "'" );
				}
				if ( !$.isFunction( instance[options] ) || options.charAt( 0 ) === "_" ) {
					return $.error( "no such method '" + options + "' for " + name + " widget instance" );
				}
				methodValue = instance[ options ].apply( instance, args );
				if ( methodValue !== instance && methodValue !== undefined ) {
					returnValue = methodValue && methodValue.jquery ?
						returnValue.pushStack( methodValue.get() ) :
						methodValue;
					return false;
				}
			});
		} else {
			this.each(function() {
				var instance = $.data( this, fullName );
				if ( instance ) {
					instance.option( options || {} )._init();
				} else {
					$.data( this, fullName, new object( options, this ) );
				}
			});
		}

		return returnValue;
	};
};

$.Widget = function( /* options, element */ ) {};
$.Widget._childConstructors = [];

$.Widget.prototype = {
	widgetName: "widget",
	widgetEventPrefix: "",
	defaultElement: "<div>",
	options: {
		disabled: false,

		// callbacks
		create: null
	},
	_createWidget: function( options, element ) {
		element = $( element || this.defaultElement || this )[ 0 ];
		this.element = $( element );
		this.uuid = uuid++;
		this.eventNamespace = "." + this.widgetName + this.uuid;
		this.options = $.widget.extend( {},
			this.options,
			this._getCreateOptions(),
			options );

		this.bindings = $();
		this.hoverable = $();
		this.focusable = $();

		if ( element !== this ) {
			// 1.9 BC for #7810
			// TODO remove dual storage
			$.data( element, this.widgetName, this );
			$.data( element, this.widgetFullName, this );
			this._on( true, this.element, {
				remove: function( event ) {
					if ( event.target === element ) {
						this.destroy();
					}
				}
			});
			this.document = $( element.style ?
				// element within the document
				element.ownerDocument :
				// element is window or document
				element.document || element );
			this.window = $( this.document[0].defaultView || this.document[0].parentWindow );
		}

		this._create();
		this._trigger( "create", null, this._getCreateEventData() );
		this._init();
	},
	_getCreateOptions: $.noop,
	_getCreateEventData: $.noop,
	_create: $.noop,
	_init: $.noop,

	destroy: function() {
		this._destroy();
		// we can probably remove the unbind calls in 2.0
		// all event bindings should go through this._on()
		this.element
			.unbind( this.eventNamespace )
			// 1.9 BC for #7810
			// TODO remove dual storage
			.removeData( this.widgetName )
			.removeData( this.widgetFullName )
			// support: jquery <1.6.3
			// http://bugs.jquery.com/ticket/9413
			.removeData( $.camelCase( this.widgetFullName ) );
		this.widget()
			.unbind( this.eventNamespace )
			.removeAttr( "aria-disabled" )
			.removeClass(
				this.widgetFullName + "-disabled " +
				"ui-state-disabled" );

		// clean up events and states
		this.bindings.unbind( this.eventNamespace );
		this.hoverable.removeClass( "ui-state-hover" );
		this.focusable.removeClass( "ui-state-focus" );
	},
	_destroy: $.noop,

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

	option: function( key, value ) {
		var options = key,
			parts,
			curOption,
			i;

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

		if ( typeof key === "string" ) {
			// handle nested keys, e.g., "foo.bar" => { foo: { bar: ___ } }
			options = {};
			parts = key.split( "." );
			key = parts.shift();
			if ( parts.length ) {
				curOption = options[ key ] = $.widget.extend( {}, this.options[ key ] );
				for ( i = 0; i < parts.length - 1; i++ ) {
					curOption[ parts[ i ] ] = curOption[ parts[ i ] ] || {};
					curOption = curOption[ parts[ i ] ];
				}
				key = parts.pop();
				if ( value === undefined ) {
					return curOption[ key ] === undefined ? null : curOption[ key ];
				}
				curOption[ key ] = value;
			} else {
				if ( value === undefined ) {
					return this.options[ key ] === undefined ? null : this.options[ key ];
				}
				options[ key ] = value;
			}
		}

		this._setOptions( options );

		return this;
	},
	_setOptions: function( options ) {
		var key;

		for ( key in options ) {
			this._setOption( key, options[ key ] );
		}

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

		if ( key === "disabled" ) {
			this.widget()
				.toggleClass( this.widgetFullName + "-disabled ui-state-disabled", !!value )
				.attr( "aria-disabled", value );
			this.hoverable.removeClass( "ui-state-hover" );
			this.focusable.removeClass( "ui-state-focus" );
		}

		return this;
	},

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

	_on: function( suppressDisabledCheck, element, handlers ) {
		var delegateElement,
			instance = this;

		// no suppressDisabledCheck flag, shuffle arguments
		if ( typeof suppressDisabledCheck !== "boolean" ) {
			handlers = element;
			element = suppressDisabledCheck;
			suppressDisabledCheck = false;
		}

		// no element argument, shuffle and use this.element
		if ( !handlers ) {
			handlers = element;
			element = this.element;
			delegateElement = this.widget();
		} else {
			// accept selectors, DOM elements
			element = delegateElement = $( element );
			this.bindings = this.bindings.add( element );
		}

		$.each( handlers, function( event, handler ) {
			function handlerProxy() {
				// allow widgets to customize the disabled handling
				// - disabled as an array instead of boolean
				// - disabled class as method for disabling individual parts
				if ( !suppressDisabledCheck &&
						( instance.options.disabled === true ||
							$( this ).hasClass( "ui-state-disabled" ) ) ) {
					return;
				}
				return ( typeof handler === "string" ? instance[ handler ] : handler )
					.apply( instance, arguments );
			}

			// copy the guid so direct unbinding works
			if ( typeof handler !== "string" ) {
				handlerProxy.guid = handler.guid =
					handler.guid || handlerProxy.guid || $.guid++;
			}

			var match = event.match( /^(\w+)\s*(.*)$/ ),
				eventName = match[1] + instance.eventNamespace,
				selector = match[2];
			if ( selector ) {
				delegateElement.delegate( selector, eventName, handlerProxy );
			} else {
				element.bind( eventName, handlerProxy );
			}
		});
	},

	_off: function( element, eventName ) {
		eventName = (eventName || "").split( " " ).join( this.eventNamespace + " " ) + this.eventNamespace;
		element.unbind( eventName ).undelegate( eventName );
	},

	_delay: function( handler, delay ) {
		function handlerProxy() {
			return ( typeof handler === "string" ? instance[ handler ] : handler )
				.apply( instance, arguments );
		}
		var instance = this;
		return setTimeout( handlerProxy, delay || 0 );
	},

	_hoverable: function( element ) {
		this.hoverable = this.hoverable.add( element );
		this._on( element, {
			mouseenter: function( event ) {
				$( event.currentTarget ).addClass( "ui-state-hover" );
			},
			mouseleave: function( event ) {
				$( event.currentTarget ).removeClass( "ui-state-hover" );
			}
		});
	},

	_focusable: function( element ) {
		this.focusable = this.focusable.add( element );
		this._on( element, {
			focusin: function( event ) {
				$( event.currentTarget ).addClass( "ui-state-focus" );
			},
			focusout: function( event ) {
				$( event.currentTarget ).removeClass( "ui-state-focus" );
			}
		});
	},

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

		data = data || {};
		event = $.Event( event );
		event.type = ( type === this.widgetEventPrefix ?
			type :
			this.widgetEventPrefix + type ).toLowerCase();
		// the original event may come from any element
		// so we need to reset the target on the new event
		event.target = this.element[ 0 ];

		// copy original event properties over to the new event
		orig = event.originalEvent;
		if ( orig ) {
			for ( prop in orig ) {
				if ( !( prop in event ) ) {
					event[ prop ] = orig[ prop ];
				}
			}
		}

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

$.each( { show: "fadeIn", hide: "fadeOut" }, function( method, defaultEffect ) {
	$.Widget.prototype[ "_" + method ] = function( element, options, callback ) {
		if ( typeof options === "string" ) {
			options = { effect: options };
		}
		var hasOptions,
			effectName = !options ?
				method :
				options === true || typeof options === "number" ?
					defaultEffect :
					options.effect || defaultEffect;
		options = options || {};
		if ( typeof options === "number" ) {
			options = { duration: options };
		}
		hasOptions = !$.isEmptyObject( options );
		options.complete = callback;
		if ( options.delay ) {
			element.delay( options.delay );
		}
		if ( hasOptions && $.effects && ( $.effects.effect[ effectName ] || $.uiBackCompat !== false && $.effects[ effectName ] ) ) {
			element[ method ]( options );
		} else if ( effectName !== method && element[ effectName ] ) {
			element[ effectName ]( options.duration, options.easing, callback );
		} else {
			element.queue(function( next ) {
				$( this )[ method ]();
				if ( callback ) {
					callback.call( element[ 0 ] );
				}
				next();
			});
		}
	};
});

// DEPRECATED
if ( $.uiBackCompat !== false ) {
	$.Widget.prototype._getCreateOptions = function() {
		return $.metadata && $.metadata.get( this.element[0] )[ this.widgetName ];
	};
}

})( jQuery );
(function( $, undefined ) {

var mouseHandled = false;
$( document ).mouseup( function( e ) {
	mouseHandled = false;
});

$.widget("ui.mouse", {
	version: "1.9.2",
	options: {
		cancel: 'input,textarea,button,select,option',
		distance: 1,
		delay: 0
	},
	_mouseInit: function() {
		var that = this;

		this.element
			.bind('mousedown.'+this.widgetName, function(event) {
				return that._mouseDown(event);
			})
			.bind('click.'+this.widgetName, function(event) {
				if (true === $.data(event.target, that.widgetName + '.preventClickEvent')) {
					$.removeData(event.target, that.widgetName + '.preventClickEvent');
					event.stopImmediatePropagation();
					return false;
				}
			});

		this.started = false;
	},

	// TODO: make sure destroying one instance of mouse doesn't mess with
	// other instances of mouse
	_mouseDestroy: function() {
		this.element.unbind('.'+this.widgetName);
		if ( this._mouseMoveDelegate ) {
			$(document)
				.unbind('mousemove.'+this.widgetName, this._mouseMoveDelegate)
				.unbind('mouseup.'+this.widgetName, this._mouseUpDelegate);
		}
	},

	_mouseDown: function(event) {
		// don't let more than one widget handle mouseStart
		if( mouseHandled ) { return; }

		// we may have missed mouseup (out of window)
		(this._mouseStarted && this._mouseUp(event));

		this._mouseDownEvent = event;

		var that = this,
			btnIsLeft = (event.which === 1),
			// event.target.nodeName works around a bug in IE 8 with
			// disabled inputs (#7620)
			elIsCancel = (typeof this.options.cancel === "string" && event.target.nodeName ? $(event.target).closest(this.options.cancel).length : false);
		if (!btnIsLeft || elIsCancel || !this._mouseCapture(event)) {
			return true;
		}

		this.mouseDelayMet = !this.options.delay;
		if (!this.mouseDelayMet) {
			this._mouseDelayTimer = setTimeout(function() {
				that.mouseDelayMet = true;
			}, this.options.delay);
		}

		if (this._mouseDistanceMet(event) && this._mouseDelayMet(event)) {
			this._mouseStarted = (this._mouseStart(event) !== false);
			if (!this._mouseStarted) {
				event.preventDefault();
				return true;
			}
		}

		// Click event may never have fired (Gecko & Opera)
		if (true === $.data(event.target, this.widgetName + '.preventClickEvent')) {
			$.removeData(event.target, this.widgetName + '.preventClickEvent');
		}

		// these delegates are required to keep context
		this._mouseMoveDelegate = function(event) {
			return that._mouseMove(event);
		};
		this._mouseUpDelegate = function(event) {
			return that._mouseUp(event);
		};
		$(document)
			.bind('mousemove.'+this.widgetName, this._mouseMoveDelegate)
			.bind('mouseup.'+this.widgetName, this._mouseUpDelegate);

		event.preventDefault();

		mouseHandled = true;
		return true;
	},

	_mouseMove: function(event) {
		// IE mouseup check - mouseup happened when mouse was out of window
		if ($.ui.ie && !(document.documentMode >= 9) && !event.button) {
			return this._mouseUp(event);
		}

		if (this._mouseStarted) {
			this._mouseDrag(event);
			return event.preventDefault();
		}

		if (this._mouseDistanceMet(event) && this._mouseDelayMet(event)) {
			this._mouseStarted =
				(this._mouseStart(this._mouseDownEvent, event) !== false);
			(this._mouseStarted ? this._mouseDrag(event) : this._mouseUp(event));
		}

		return !this._mouseStarted;
	},

	_mouseUp: function(event) {
		$(document)
			.unbind('mousemove.'+this.widgetName, this._mouseMoveDelegate)
			.unbind('mouseup.'+this.widgetName, this._mouseUpDelegate);

		if (this._mouseStarted) {
			this._mouseStarted = false;

			if (event.target === this._mouseDownEvent.target) {
				$.data(event.target, this.widgetName + '.preventClickEvent', true);
			}

			this._mouseStop(event);
		}

		return false;
	},

	_mouseDistanceMet: function(event) {
		return (Math.max(
				Math.abs(this._mouseDownEvent.pageX - event.pageX),
				Math.abs(this._mouseDownEvent.pageY - event.pageY)
			) >= this.options.distance
		);
	},

	_mouseDelayMet: function(event) {
		return this.mouseDelayMet;
	},

	// These are placeholder methods, to be overriden by extending plugin
	_mouseStart: function(event) {},
	_mouseDrag: function(event) {},
	_mouseStop: function(event) {},
	_mouseCapture: function(event) { return true; }
});

})(jQuery);
(function( $, undefined ) {

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

var cachedScrollbarWidth,
	max = Math.max,
	abs = Math.abs,
	round = Math.round,
	rhorizontal = /left|center|right/,
	rvertical = /top|center|bottom/,
	roffset = /[\+\-]\d+%?/,
	rposition = /^\w+/,
	rpercent = /%$/,
	_position = $.fn.position;

function getOffsets( offsets, width, height ) {
	return [
		parseInt( offsets[ 0 ], 10 ) * ( rpercent.test( offsets[ 0 ] ) ? width / 100 : 1 ),
		parseInt( offsets[ 1 ], 10 ) * ( rpercent.test( offsets[ 1 ] ) ? height / 100 : 1 )
	];
}
function parseCss( element, property ) {
	return parseInt( $.css( element, property ), 10 ) || 0;
}

$.position = {
	scrollbarWidth: function() {
		if ( cachedScrollbarWidth !== undefined ) {
			return cachedScrollbarWidth;
		}
		var w1, w2,
			div = $( "<div style='display:block;width:50px;height:50px;overflow:hidden;'><div style='height:100px;width:auto;'></div></div>" ),
			innerDiv = div.children()[0];

		$( "body" ).append( div );
		w1 = innerDiv.offsetWidth;
		div.css( "overflow", "scroll" );

		w2 = innerDiv.offsetWidth;

		if ( w1 === w2 ) {
			w2 = div[0].clientWidth;
		}

		div.remove();

		return (cachedScrollbarWidth = w1 - w2);
	},
	getScrollInfo: function( within ) {
		var overflowX = within.isWindow ? "" : within.element.css( "overflow-x" ),
			overflowY = within.isWindow ? "" : within.element.css( "overflow-y" ),
			hasOverflowX = overflowX === "scroll" ||
				( overflowX === "auto" && within.width < within.element[0].scrollWidth ),
			hasOverflowY = overflowY === "scroll" ||
				( overflowY === "auto" && within.height < within.element[0].scrollHeight );
		return {
			width: hasOverflowX ? $.position.scrollbarWidth() : 0,
			height: hasOverflowY ? $.position.scrollbarWidth() : 0
		};
	},
	getWithinInfo: function( element ) {
		var withinElement = $( element || window ),
			isWindow = $.isWindow( withinElement[0] );
		return {
			element: withinElement,
			isWindow: isWindow,
			offset: withinElement.offset() || { left: 0, top: 0 },
			scrollLeft: withinElement.scrollLeft(),
			scrollTop: withinElement.scrollTop(),
			width: isWindow ? withinElement.width() : withinElement.outerWidth(),
			height: isWindow ? withinElement.height() : withinElement.outerHeight()
		};
	}
};

$.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 atOffset, targetWidth, targetHeight, targetOffset, basePosition,
		target = $( options.of ),
		within = $.position.getWithinInfo( options.within ),
		scrollInfo = $.position.getScrollInfo( within ),
		targetElem = target[0],
		collision = ( options.collision || "flip" ).split( " " ),
		offsets = {};

	if ( targetElem.nodeType === 9 ) {
		targetWidth = target.width();
		targetHeight = target.height();
		targetOffset = { top: 0, left: 0 };
	} else if ( $.isWindow( targetElem ) ) {
		targetWidth = target.width();
		targetHeight = target.height();
		targetOffset = { top: target.scrollTop(), left: target.scrollLeft() };
	} else if ( targetElem.preventDefault ) {
		// force left top to allow flipping
		options.at = "left top";
		targetWidth = targetHeight = 0;
		targetOffset = { top: targetElem.pageY, left: targetElem.pageX };
	} else {
		targetWidth = target.outerWidth();
		targetHeight = target.outerHeight();
		targetOffset = target.offset();
	}
	// clone to reuse original targetOffset later
	basePosition = $.extend( {}, targetOffset );

	// force my and at to have valid horizontal and vertical positions
	// if a value is missing or invalid, it will be converted to center
	$.each( [ "my", "at" ], function() {
		var pos = ( options[ this ] || "" ).split( " " ),
			horizontalOffset,
			verticalOffset;

		if ( pos.length === 1) {
			pos = rhorizontal.test( pos[ 0 ] ) ?
				pos.concat( [ "center" ] ) :
				rvertical.test( pos[ 0 ] ) ?
					[ "center" ].concat( pos ) :
					[ "center", "center" ];
		}
		pos[ 0 ] = rhorizontal.test( pos[ 0 ] ) ? pos[ 0 ] : "center";
		pos[ 1 ] = rvertical.test( pos[ 1 ] ) ? pos[ 1 ] : "center";

		// calculate offsets
		horizontalOffset = roffset.exec( pos[ 0 ] );
		verticalOffset = roffset.exec( pos[ 1 ] );
		offsets[ this ] = [
			horizontalOffset ? horizontalOffset[ 0 ] : 0,
			verticalOffset ? verticalOffset[ 0 ] : 0
		];

		// reduce to just the positions without the offsets
		options[ this ] = [
			rposition.exec( pos[ 0 ] )[ 0 ],
			rposition.exec( pos[ 1 ] )[ 0 ]
		];
	});

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

	atOffset = getOffsets( offsets.at, targetWidth, targetHeight );
	basePosition.left += atOffset[ 0 ];
	basePosition.top += atOffset[ 1 ];

	return this.each(function() {
		var collisionPosition, using,
			elem = $( this ),
			elemWidth = elem.outerWidth(),
			elemHeight = elem.outerHeight(),
			marginLeft = parseCss( this, "marginLeft" ),
			marginTop = parseCss( this, "marginTop" ),
			collisionWidth = elemWidth + marginLeft + parseCss( this, "marginRight" ) + scrollInfo.width,
			collisionHeight = elemHeight + marginTop + parseCss( this, "marginBottom" ) + scrollInfo.height,
			position = $.extend( {}, basePosition ),
			myOffset = getOffsets( offsets.my, elem.outerWidth(), elem.outerHeight() );

		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;
		}

		position.left += myOffset[ 0 ];
		position.top += myOffset[ 1 ];

		// if the browser doesn't support fractions, then round for consistent results
		if ( !$.support.offsetFractions ) {
			position.left = round( position.left );
			position.top = round( position.top );
		}

		collisionPosition = {
			marginLeft: marginLeft,
			marginTop: 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: [ atOffset[ 0 ] + myOffset[ 0 ], atOffset [ 1 ] + myOffset[ 1 ] ],
					my: options.my,
					at: options.at,
					within: within,
					elem : elem
				});
			}
		});

		if ( $.fn.bgiframe ) {
			elem.bgiframe();
		}

		if ( options.using ) {
			// adds feedback as second argument to using callback, if present
			using = function( props ) {
				var left = targetOffset.left - position.left,
					right = left + targetWidth - elemWidth,
					top = targetOffset.top - position.top,
					bottom = top + targetHeight - elemHeight,
					feedback = {
						target: {
							element: target,
							left: targetOffset.left,
							top: targetOffset.top,
							width: targetWidth,
							height: targetHeight
						},
						element: {
							element: elem,
							left: position.left,
							top: position.top,
							width: elemWidth,
							height: elemHeight
						},
						horizontal: right < 0 ? "left" : left > 0 ? "right" : "center",
						vertical: bottom < 0 ? "top" : top > 0 ? "bottom" : "middle"
					};
				if ( targetWidth < elemWidth && abs( left + right ) < targetWidth ) {
					feedback.horizontal = "center";
				}
				if ( targetHeight < elemHeight && abs( top + bottom ) < targetHeight ) {
					feedback.vertical = "middle";
				}
				if ( max( abs( left ), abs( right ) ) > max( abs( top ), abs( bottom ) ) ) {
					feedback.important = "horizontal";
				} else {
					feedback.important = "vertical";
				}
				options.using.call( this, props, feedback );
			};
		}

		elem.offset( $.extend( position, { using: using } ) );
	});
};

$.ui.position = {
	fit: {
		left: function( position, data ) {
			var within = data.within,
				withinOffset = within.isWindow ? within.scrollLeft : within.offset.left,
				outerWidth = within.width,
				collisionPosLeft = position.left - data.collisionPosition.marginLeft,
				overLeft = withinOffset - collisionPosLeft,
				overRight = collisionPosLeft + data.collisionWidth - outerWidth - withinOffset,
				newOverRight;

			// element is wider than within
			if ( data.collisionWidth > outerWidth ) {
				// element is initially over the left side of within
				if ( overLeft > 0 && overRight <= 0 ) {
					newOverRight = position.left + overLeft + data.collisionWidth - outerWidth - withinOffset;
					position.left += overLeft - newOverRight;
				// element is initially over right side of within
				} else if ( overRight > 0 && overLeft <= 0 ) {
					position.left = withinOffset;
				// element is initially over both left and right sides of within
				} else {
					if ( overLeft > overRight ) {
						position.left = withinOffset + outerWidth - data.collisionWidth;
					} else {
						position.left = withinOffset;
					}
				}
			// too far left -> align with left edge
			} else if ( overLeft > 0 ) {
				position.left += overLeft;
			// too far right -> align with right edge
			} else if ( overRight > 0 ) {
				position.left -= overRight;
			// adjust based on position and margin
			} else {
				position.left = max( position.left - collisionPosLeft, position.left );
			}
		},
		top: function( position, data ) {
			var within = data.within,
				withinOffset = within.isWindow ? within.scrollTop : within.offset.top,
				outerHeight = data.within.height,
				collisionPosTop = position.top - data.collisionPosition.marginTop,
				overTop = withinOffset - collisionPosTop,
				overBottom = collisionPosTop + data.collisionHeight - outerHeight - withinOffset,
				newOverBottom;

			// element is taller than within
			if ( data.collisionHeight > outerHeight ) {
				// element is initially over the top of within
				if ( overTop > 0 && overBottom <= 0 ) {
					newOverBottom = position.top + overTop + data.collisionHeight - outerHeight - withinOffset;
					position.top += overTop - newOverBottom;
				// element is initially over bottom of within
				} else if ( overBottom > 0 && overTop <= 0 ) {
					position.top = withinOffset;
				// element is initially over both top and bottom of within
				} else {
					if ( overTop > overBottom ) {
						position.top = withinOffset + outerHeight - data.collisionHeight;
					} else {
						position.top = withinOffset;
					}
				}
			// too far up -> align with top
			} else if ( overTop > 0 ) {
				position.top += overTop;
			// too far down -> align with bottom edge
			} else if ( overBottom > 0 ) {
				position.top -= overBottom;
			// adjust based on position and margin
			} else {
				position.top = max( position.top - collisionPosTop, position.top );
			}
		}
	},
	flip: {
		left: function( position, data ) {
			var within = data.within,
				withinOffset = within.offset.left + within.scrollLeft,
				outerWidth = within.width,
				offsetLeft = within.isWindow ? within.scrollLeft : within.offset.left,
				collisionPosLeft = position.left - data.collisionPosition.marginLeft,
				overLeft = collisionPosLeft - offsetLeft,
				overRight = collisionPosLeft + data.collisionWidth - outerWidth - offsetLeft,
				myOffset = data.my[ 0 ] === "left" ?
					-data.elemWidth :
					data.my[ 0 ] === "right" ?
						data.elemWidth :
						0,
				atOffset = data.at[ 0 ] === "left" ?
					data.targetWidth :
					data.at[ 0 ] === "right" ?
						-data.targetWidth :
						0,
				offset = -2 * data.offset[ 0 ],
				newOverRight,
				newOverLeft;

			if ( overLeft < 0 ) {
				newOverRight = position.left + myOffset + atOffset + offset + data.collisionWidth - outerWidth - withinOffset;
				if ( newOverRight < 0 || newOverRight < abs( overLeft ) ) {
					position.left += myOffset + atOffset + offset;
				}
			}
			else if ( overRight > 0 ) {
				newOverLeft = position.left - data.collisionPosition.marginLeft + myOffset + atOffset + offset - offsetLeft;
				if ( newOverLeft > 0 || abs( newOverLeft ) < overRight ) {
					position.left += myOffset + atOffset + offset;
				}
			}
		},
		top: function( position, data ) {
			var within = data.within,
				withinOffset = within.offset.top + within.scrollTop,
				outerHeight = within.height,
				offsetTop = within.isWindow ? within.scrollTop : within.offset.top,
				collisionPosTop = position.top - data.collisionPosition.marginTop,
				overTop = collisionPosTop - offsetTop,
				overBottom = collisionPosTop + data.collisionHeight - outerHeight - offsetTop,
				top = data.my[ 1 ] === "top",
				myOffset = top ?
					-data.elemHeight :
					data.my[ 1 ] === "bottom" ?
						data.elemHeight :
						0,
				atOffset = data.at[ 1 ] === "top" ?
					data.targetHeight :
					data.at[ 1 ] === "bottom" ?
						-data.targetHeight :
						0,
				offset = -2 * data.offset[ 1 ],
				newOverTop,
				newOverBottom;
			if ( overTop < 0 ) {
				newOverBottom = position.top + myOffset + atOffset + offset + data.collisionHeight - outerHeight - withinOffset;
				if ( ( position.top + myOffset + atOffset + offset) > overTop && ( newOverBottom < 0 || newOverBottom < abs( overTop ) ) ) {
					position.top += myOffset + atOffset + offset;
				}
			}
			else if ( overBottom > 0 ) {
				newOverTop = position.top -  data.collisionPosition.marginTop + myOffset + atOffset + offset - offsetTop;
				if ( ( position.top + myOffset + atOffset + offset) > overBottom && ( newOverTop > 0 || abs( newOverTop ) < overBottom ) ) {
					position.top += myOffset + atOffset + offset;
				}
			}
		}
	},
	flipfit: {
		left: function() {
			$.ui.position.flip.left.apply( this, arguments );
			$.ui.position.fit.left.apply( this, arguments );
		},
		top: function() {
			$.ui.position.flip.top.apply( this, arguments );
			$.ui.position.fit.top.apply( this, arguments );
		}
	}
};

// fraction support test
(function () {
	var testElement, testElementParent, testElementStyle, offsetLeft, i,
		body = document.getElementsByTagName( "body" )[ 0 ],
		div = document.createElement( "div" );

	//Create a "fake body" for testing based on method used in jQuery.support
	testElement = document.createElement( body ? "div" : "body" );
	testElementStyle = {
		visibility: "hidden",
		width: 0,
		height: 0,
		border: 0,
		margin: 0,
		background: "none"
	};
	if ( body ) {
		$.extend( testElementStyle, {
			position: "absolute",
			left: "-1000px",
			top: "-1000px"
		});
	}
	for ( i in testElementStyle ) {
		testElement.style[ i ] = testElementStyle[ i ];
	}
	testElement.appendChild( div );
	testElementParent = body || document.documentElement;
	testElementParent.insertBefore( testElement, testElementParent.firstChild );

	div.style.cssText = "position: absolute; left: 10.7432222px;";

	offsetLeft = $( div ).offset().left;
	$.support.offsetFractions = offsetLeft > 10 && offsetLeft < 11;

	testElement.innerHTML = "";
	testElementParent.removeChild( testElement );
})();

// DEPRECATED
if ( $.uiBackCompat !== false ) {
	// offset option
	(function( $ ) {
		var _position = $.fn.position;
		$.fn.position = function( options ) {
			if ( !options || !options.offset ) {
				return _position.call( this, options );
			}
			var offset = options.offset.split( " " ),
				at = options.at.split( " " );
			if ( offset.length === 1 ) {
				offset[ 1 ] = offset[ 0 ];
			}
			if ( /^\d/.test( offset[ 0 ] ) ) {
				offset[ 0 ] = "+" + offset[ 0 ];
			}
			if ( /^\d/.test( offset[ 1 ] ) ) {
				offset[ 1 ] = "+" + offset[ 1 ];
			}
			if ( at.length === 1 ) {
				if ( /left|center|right/.test( at[ 0 ] ) ) {
					at[ 1 ] = "center";
				} else {
					at[ 1 ] = at[ 0 ];
					at[ 0 ] = "center";
				}
			}
			return _position.call( this, $.extend( options, {
				at: at[ 0 ] + offset[ 0 ] + " " + at[ 1 ] + offset[ 1 ],
				offset: undefined
			} ) );
		};
	}( jQuery ) );
}

}( jQuery ) );
(function( $, undefined ) {

$.widget("ui.draggable", $.ui.mouse, {
	version: "1.9.2",
	widgetEventPrefix: "drag",
	options: {
		addClasses: true,
		appendTo: "parent",
		axis: false,
		connectToSortable: false,
		containment: false,
		cursor: "auto",
		cursorAt: false,
		grid: false,
		handle: false,
		helper: "original",
		iframeFix: false,
		opacity: false,
		refreshPositions: false,
		revert: false,
		revertDuration: 500,
		scope: "default",
		scroll: true,
		scrollSensitivity: 20,
		scrollSpeed: 20,
		snap: false,
		snapMode: "both",
		snapTolerance: 20,
		stack: false,
		zIndex: false
	},
	_create: function() {

		if (this.options.helper == 'original' && !(/^(?:r|a|f)/).test(this.element.css("position")))
			this.element[0].style.position = 'relative';

		(this.options.addClasses && this.element.addClass("ui-draggable"));
		(this.options.disabled && this.element.addClass("ui-draggable-disabled"));

		this._mouseInit();

	},

	_destroy: function() {
		this.element.removeClass( "ui-draggable ui-draggable-dragging ui-draggable-disabled" );
		this._mouseDestroy();
	},

	_mouseCapture: function(event) {

		var o = this.options;

		// among others, prevent a drag on a resizable-handle
		if (this.helper || o.disabled || $(event.target).is('.ui-resizable-handle'))
			return false;

		//Quit if we're not on a valid handle
		this.handle = this._getHandle(event);
		if (!this.handle)
			return false;

		$(o.iframeFix === true ? "iframe" : o.iframeFix).each(function() {
			$('<div class="ui-draggable-iframeFix" style="background: #fff;"></div>')
			.css({
				width: this.offsetWidth+"px", height: this.offsetHeight+"px",
				position: "absolute", opacity: "0.001", zIndex: 1000
			})
			.css($(this).offset())
			.appendTo("body");
		});

		return true;

	},

	_mouseStart: function(event) {

		var o = this.options;

		//Create and append the visible helper
		this.helper = this._createHelper(event);

		this.helper.addClass("ui-draggable-dragging");

		//Cache the helper size
		this._cacheHelperProportions();

		//If ddmanager is used for droppables, set the global draggable
		if($.ui.ddmanager)
			$.ui.ddmanager.current = this;

		/*
		 * - Position generation -
		 * This block generates everything position related - it's the core of draggables.
		 */

		//Cache the margins of the original element
		this._cacheMargins();

		//Store the helper's css position
		this.cssPosition = this.helper.css("position");
		this.scrollParent = this.helper.scrollParent();

		//The element's absolute position on the page minus margins
		this.offset = this.positionAbs = this.element.offset();
		this.offset = {
			top: this.offset.top - this.margins.top,
			left: this.offset.left - this.margins.left
		};

		$.extend(this.offset, {
			click: { //Where the click happened, relative to the element
				left: event.pageX - this.offset.left,
				top: event.pageY - this.offset.top
			},
			parent: this._getParentOffset(),
			relative: this._getRelativeOffset() //This is a relative to absolute position minus the actual position calculation - only used for relative positioned helper
		});

		//Generate the original position
		this.originalPosition = this.position = this._generatePosition(event);
		this.originalPageX = event.pageX;
		this.originalPageY = event.pageY;

		//Adjust the mouse offset relative to the helper if 'cursorAt' is supplied
		(o.cursorAt && this._adjustOffsetFromHelper(o.cursorAt));

		//Set a containment if given in the options
		if(o.containment)
			this._setContainment();

		//Trigger event + callbacks
		if(this._trigger("start", event) === false) {
			this._clear();
			return false;
		}

		//Recache the helper size
		this._cacheHelperProportions();

		//Prepare the droppable offsets
		if ($.ui.ddmanager && !o.dropBehaviour)
			$.ui.ddmanager.prepareOffsets(this, event);


		this._mouseDrag(event, true); //Execute the drag once - this causes the helper not to be visible before getting its correct position

		//If the ddmanager is used for droppables, inform the manager that dragging has started (see #5003)
		if ( $.ui.ddmanager ) $.ui.ddmanager.dragStart(this, event);

		return true;
	},

	_mouseDrag: function(event, noPropagation) {

		//Compute the helpers position
		this.position = this._generatePosition(event);
		this.positionAbs = this._convertPositionTo("absolute");

		//Call plugins and callbacks and use the resulting position if something is returned
		if (!noPropagation) {
			var ui = this._uiHash();
			if(this._trigger('drag', event, ui) === false) {
				this._mouseUp({});
				return false;
			}
			this.position = ui.position;
		}

		if(!this.options.axis || this.options.axis != "y") this.helper[0].style.left = this.position.left+'px';
		if(!this.options.axis || this.options.axis != "x") this.helper[0].style.top = this.position.top+'px';
		if($.ui.ddmanager) $.ui.ddmanager.drag(this, event);

		return false;
	},

	_mouseStop: function(event) {

		//If we are using droppables, inform the manager about the drop
		var dropped = false;
		if ($.ui.ddmanager && !this.options.dropBehaviour)
			dropped = $.ui.ddmanager.drop(this, event);

		//if a drop comes from outside (a sortable)
		if(this.dropped) {
			dropped = this.dropped;
			this.dropped = false;
		}

		//if the original element is no longer in the DOM don't bother to continue (see #8269)
		var element = this.element[0], elementInDom = false;
		while ( element && (element = element.parentNode) ) {
			if (element == document ) {
				elementInDom = true;
			}
		}
		if ( !elementInDom && this.options.helper === "original" )
			return false;

		if((this.options.revert == "invalid" && !dropped) || (this.options.revert == "valid" && dropped) || this.options.revert === true || ($.isFunction(this.options.revert) && this.options.revert.call(this.element, dropped))) {
			var that = this;
			$(this.helper).animate(this.originalPosition, parseInt(this.options.revertDuration, 10), function() {
				if(that._trigger("stop", event) !== false) {
					that._clear();
				}
			});
		} else {
			if(this._trigger("stop", event) !== false) {
				this._clear();
			}
		}

		return false;
	},

	_mouseUp: function(event) {
		//Remove frame helpers
		$("div.ui-draggable-iframeFix").each(function() {
			this.parentNode.removeChild(this);
		});

		//If the ddmanager is used for droppables, inform the manager that dragging has stopped (see #5003)
		if( $.ui.ddmanager ) $.ui.ddmanager.dragStop(this, event);

		return $.ui.mouse.prototype._mouseUp.call(this, event);
	},

	cancel: function() {

		if(this.helper.is(".ui-draggable-dragging")) {
			this._mouseUp({});
		} else {
			this._clear();
		}

		return this;

	},

	_getHandle: function(event) {

		var handle = !this.options.handle || !$(this.options.handle, this.element).length ? true : false;
		$(this.options.handle, this.element)
			.find("*")
			.andSelf()
			.each(function() {
				if(this == event.target) handle = true;
			});

		return handle;

	},

	_createHelper: function(event) {

		var o = this.options;
		var helper = $.isFunction(o.helper) ? $(o.helper.apply(this.element[0], [event])) : (o.helper == 'clone' ? this.element.clone().removeAttr('id') : this.element);

		if(!helper.parents('body').length)
			helper.appendTo((o.appendTo == 'parent' ? this.element[0].parentNode : o.appendTo));

		if(helper[0] != this.element[0] && !(/(fixed|absolute)/).test(helper.css("position")))
			helper.css("position", "absolute");

		return helper;

	},

	_adjustOffsetFromHelper: function(obj) {
		if (typeof obj == 'string') {
			obj = obj.split(' ');
		}
		if ($.isArray(obj)) {
			obj = {left: +obj[0], top: +obj[1] || 0};
		}
		if ('left' in obj) {
			this.offset.click.left = obj.left + this.margins.left;
		}
		if ('right' in obj) {
			this.offset.click.left = this.helperProportions.width - obj.right + this.margins.left;
		}
		if ('top' in obj) {
			this.offset.click.top = obj.top + this.margins.top;
		}
		if ('bottom' in obj) {
			this.offset.click.top = this.helperProportions.height - obj.bottom + this.margins.top;
		}
	},

	_getParentOffset: function() {

		//Get the offsetParent and cache its position
		this.offsetParent = this.helper.offsetParent();
		var po = this.offsetParent.offset();

		// This is a special case where we need to modify a offset calculated on start, since the following happened:
		// 1. The position of the helper is absolute, so it's position is calculated based on the next positioned parent
		// 2. The actual offset parent is a child of the scroll parent, and the scroll parent isn't the document, which means that
		//    the scroll is included in the initial calculation of the offset of the parent, and never recalculated upon drag
		if(this.cssPosition == 'absolute' && this.scrollParent[0] != document && $.contains(this.scrollParent[0], this.offsetParent[0])) {
			po.left += this.scrollParent.scrollLeft();
			po.top += this.scrollParent.scrollTop();
		}

		if((this.offsetParent[0] == document.body) //This needs to be actually done for all browsers, since pageX/pageY includes this information
		|| (this.offsetParent[0].tagName && this.offsetParent[0].tagName.toLowerCase() == 'html' && $.ui.ie)) //Ugly IE fix
			po = { top: 0, left: 0 };

		return {
			top: po.top + (parseInt(this.offsetParent.css("borderTopWidth"),10) || 0),
			left: po.left + (parseInt(this.offsetParent.css("borderLeftWidth"),10) || 0)
		};

	},

	_getRelativeOffset: function() {

		if(this.cssPosition == "relative") {
			var p = this.element.position();
			return {
				top: p.top - (parseInt(this.helper.css("top"),10) || 0) + this.scrollParent.scrollTop(),
				left: p.left - (parseInt(this.helper.css("left"),10) || 0) + this.scrollParent.scrollLeft()
			};
		} else {
			return { top: 0, left: 0 };
		}

	},

	_cacheMargins: function() {
		this.margins = {
			left: (parseInt(this.element.css("marginLeft"),10) || 0),
			top: (parseInt(this.element.css("marginTop"),10) || 0),
			right: (parseInt(this.element.css("marginRight"),10) || 0),
			bottom: (parseInt(this.element.css("marginBottom"),10) || 0)
		};
	},

	_cacheHelperProportions: function() {
		this.helperProportions = {
			width: this.helper.outerWidth(),
			height: this.helper.outerHeight()
		};
	},

	_setContainment: function() {

		var o = this.options;
		if(o.containment == 'parent') o.containment = this.helper[0].parentNode;
		if(o.containment == 'document' || o.containment == 'window') this.containment = [
			o.containment == 'document' ? 0 : $(window).scrollLeft() - this.offset.relative.left - this.offset.parent.left,
			o.containment == 'document' ? 0 : $(window).scrollTop() - this.offset.relative.top - this.offset.parent.top,
			(o.containment == 'document' ? 0 : $(window).scrollLeft()) + $(o.containment == 'document' ? document : window).width() - this.helperProportions.width - this.margins.left,
			(o.containment == 'document' ? 0 : $(window).scrollTop()) + ($(o.containment == 'document' ? document : window).height() || document.body.parentNode.scrollHeight) - this.helperProportions.height - this.margins.top
		];

		if(!(/^(document|window|parent)$/).test(o.containment) && o.containment.constructor != Array) {
			var c = $(o.containment);
			var ce = c[0]; if(!ce) return;
			var co = c.offset();
			var over = ($(ce).css("overflow") != 'hidden');

			this.containment = [
				(parseInt($(ce).css("borderLeftWidth"),10) || 0) + (parseInt($(ce).css("paddingLeft"),10) || 0),
				(parseInt($(ce).css("borderTopWidth"),10) || 0) + (parseInt($(ce).css("paddingTop"),10) || 0),
				(over ? Math.max(ce.scrollWidth,ce.offsetWidth) : ce.offsetWidth) - (parseInt($(ce).css("borderLeftWidth"),10) || 0) - (parseInt($(ce).css("paddingRight"),10) || 0) - this.helperProportions.width - this.margins.left - this.margins.right,
				(over ? Math.max(ce.scrollHeight,ce.offsetHeight) : ce.offsetHeight) - (parseInt($(ce).css("borderTopWidth"),10) || 0) - (parseInt($(ce).css("paddingBottom"),10) || 0) - this.helperProportions.height - this.margins.top  - this.margins.bottom
			];
			this.relative_container = c;

		} else if(o.containment.constructor == Array) {
			this.containment = o.containment;
		}

	},

	_convertPositionTo: function(d, pos) {

		if(!pos) pos = this.position;
		var mod = d == "absolute" ? 1 : -1;
		var o = this.options, scroll = this.cssPosition == 'absolute' && !(this.scrollParent[0] != document && $.contains(this.scrollParent[0], this.offsetParent[0])) ? this.offsetParent : this.scrollParent, scrollIsRootNode = (/(html|body)/i).test(scroll[0].tagName);

		return {
			top: (
				pos.top																	// The absolute mouse position
				+ this.offset.relative.top * mod										// Only for relative positioned nodes: Relative offset from element to offset parent
				+ this.offset.parent.top * mod											// The offsetParent's offset without borders (offset + border)
				- ( ( this.cssPosition == 'fixed' ? -this.scrollParent.scrollTop() : ( scrollIsRootNode ? 0 : scroll.scrollTop() ) ) * mod)
			),
			left: (
				pos.left																// The absolute mouse position
				+ this.offset.relative.left * mod										// Only for relative positioned nodes: Relative offset from element to offset parent
				+ this.offset.parent.left * mod											// The offsetParent's offset without borders (offset + border)
				- ( ( this.cssPosition == 'fixed' ? -this.scrollParent.scrollLeft() : scrollIsRootNode ? 0 : scroll.scrollLeft() ) * mod)
			)
		};

	},

	_generatePosition: function(event) {

		var o = this.options, scroll = this.cssPosition == 'absolute' && !(this.scrollParent[0] != document && $.contains(this.scrollParent[0], this.offsetParent[0])) ? this.offsetParent : this.scrollParent, scrollIsRootNode = (/(html|body)/i).test(scroll[0].tagName);
		var pageX = event.pageX;
		var pageY = event.pageY;

		/*
		 * - Position constraining -
		 * Constrain the position to a mix of grid, containment.
		 */

		if(this.originalPosition) { //If we are not dragging yet, we won't check for options
			var containment;
			if(this.containment) {
			if (this.relative_container){
				var co = this.relative_container.offset();
				containment = [ this.containment[0] + co.left,
					this.containment[1] + co.top,
					this.containment[2] + co.left,
					this.containment[3] + co.top ];
			}
			else {
				containment = this.containment;
			}

				if(event.pageX - this.offset.click.left < containment[0]) pageX = containment[0] + this.offset.click.left;
				if(event.pageY - this.offset.click.top < containment[1]) pageY = containment[1] + this.offset.click.top;
				if(event.pageX - this.offset.click.left > containment[2]) pageX = containment[2] + this.offset.click.left;
				if(event.pageY - this.offset.click.top > containment[3]) pageY = containment[3] + this.offset.click.top;
			}

			if(o.grid) {
				//Check for grid elements set to 0 to prevent divide by 0 error causing invalid argument errors in IE (see ticket #6950)
				var top = o.grid[1] ? this.originalPageY + Math.round((pageY - this.originalPageY) / o.grid[1]) * o.grid[1] : this.originalPageY;
				pageY = containment ? (!(top - this.offset.click.top < containment[1] || top - this.offset.click.top > containment[3]) ? top : (!(top - this.offset.click.top < containment[1]) ? top - o.grid[1] : top + o.grid[1])) : top;

				var left = o.grid[0] ? this.originalPageX + Math.round((pageX - this.originalPageX) / o.grid[0]) * o.grid[0] : this.originalPageX;
				pageX = containment ? (!(left - this.offset.click.left < containment[0] || left - this.offset.click.left > containment[2]) ? left : (!(left - this.offset.click.left < containment[0]) ? left - o.grid[0] : left + o.grid[0])) : left;
			}

		}

		return {
			top: (
				pageY																// The absolute mouse position
				- this.offset.click.top													// Click offset (relative to the element)
				- this.offset.relative.top												// Only for relative positioned nodes: Relative offset from element to offset parent
				- this.offset.parent.top												// The offsetParent's offset without borders (offset + border)
				+ ( ( this.cssPosition == 'fixed' ? -this.scrollParent.scrollTop() : ( scrollIsRootNode ? 0 : scroll.scrollTop() ) ))
			),
			left: (
				pageX																// The absolute mouse position
				- this.offset.click.left												// Click offset (relative to the element)
				- this.offset.relative.left												// Only for relative positioned nodes: Relative offset from element to offset parent
				- this.offset.parent.left												// The offsetParent's offset without borders (offset + border)
				+ ( ( this.cssPosition == 'fixed' ? -this.scrollParent.scrollLeft() : scrollIsRootNode ? 0 : scroll.scrollLeft() ))
			)
		};

	},

	_clear: function() {
		this.helper.removeClass("ui-draggable-dragging");
		if(this.helper[0] != this.element[0] && !this.cancelHelperRemoval) this.helper.remove();
		//if($.ui.ddmanager) $.ui.ddmanager.current = null;
		this.helper = null;
		this.cancelHelperRemoval = false;
	},

	// From now on bulk stuff - mainly helpers

	_trigger: function(type, event, ui) {
		ui = ui || this._uiHash();
		$.ui.plugin.call(this, type, [event, ui]);
		if(type == "drag") this.positionAbs = this._convertPositionTo("absolute"); //The absolute position has to be recalculated after plugins
		return $.Widget.prototype._trigger.call(this, type, event, ui);
	},

	plugins: {},

	_uiHash: function(event) {
		return {
			helper: this.helper,
			position: this.position,
			originalPosition: this.originalPosition,
			offset: this.positionAbs
		};
	}

});

$.ui.plugin.add("draggable", "connectToSortable", {
	start: function(event, ui) {

		var inst = $(this).data("draggable"), o = inst.options,
			uiSortable = $.extend({}, ui, { item: inst.element });
		inst.sortables = [];
		$(o.connectToSortable).each(function() {
			var sortable = $.data(this, 'sortable');
			if (sortable && !sortable.options.disabled) {
				inst.sortables.push({
					instance: sortable,
					shouldRevert: sortable.options.revert
				});
				sortable.refreshPositions();	// Call the sortable's refreshPositions at drag start to refresh the containerCache since the sortable container cache is used in drag and needs to be up to date (this will ensure it's initialised as well as being kept in step with any changes that might have happened on the page).
				sortable._trigger("activate", event, uiSortable);
			}
		});

	},
	stop: function(event, ui) {

		//If we are still over the sortable, we fake the stop event of the sortable, but also remove helper
		var inst = $(this).data("draggable"),
			uiSortable = $.extend({}, ui, { item: inst.element });

		$.each(inst.sortables, function() {
			if(this.instance.isOver) {

				this.instance.isOver = 0;

				inst.cancelHelperRemoval = true; //Don't remove the helper in the draggable instance
				this.instance.cancelHelperRemoval = false; //Remove it in the sortable instance (so sortable plugins like revert still work)

				//The sortable revert is supported, and we have to set a temporary dropped variable on the draggable to support revert: 'valid/invalid'
				if(this.shouldRevert) this.instance.options.revert = true;

				//Trigger the stop of the sortable
				this.instance._mouseStop(event);

				this.instance.options.helper = this.instance.options._helper;

				//If the helper has been the original item, restore properties in the sortable
				if(inst.options.helper == 'original')
					this.instance.currentItem.css({ top: 'auto', left: 'auto' });

			} else {
				this.instance.cancelHelperRemoval = false; //Remove the helper in the sortable instance
				this.instance._trigger("deactivate", event, uiSortable);
			}

		});

	},
	drag: function(event, ui) {

		var inst = $(this).data("draggable"), that = this;

		var checkPos = function(o) {
			var dyClick = this.offset.click.top, dxClick = this.offset.click.left;
			var helperTop = this.positionAbs.top, helperLeft = this.positionAbs.left;
			var itemHeight = o.height, itemWidth = o.width;
			var itemTop = o.top, itemLeft = o.left;

			return $.ui.isOver(helperTop + dyClick, helperLeft + dxClick, itemTop, itemLeft, itemHeight, itemWidth);
		};

		$.each(inst.sortables, function(i) {

			var innermostIntersecting = false;
			var thisSortable = this;
			//Copy over some variables to allow calling the sortable's native _intersectsWith
			this.instance.positionAbs = inst.positionAbs;
			this.instance.helperProportions = inst.helperProportions;
			this.instance.offset.click = inst.offset.click;

			if(this.instance._intersectsWith(this.instance.containerCache)) {
				innermostIntersecting = true;
				$.each(inst.sortables, function () {
					this.instance.positionAbs = inst.positionAbs;
					this.instance.helperProportions = inst.helperProportions;
					this.instance.offset.click = inst.offset.click;
					if  (this != thisSortable
						&& this.instance._intersectsWith(this.instance.containerCache)
						&& $.ui.contains(thisSortable.instance.element[0], this.instance.element[0]))
						innermostIntersecting = false;
						return innermostIntersecting;
				});
			}


			if(innermostIntersecting) {
				//If it intersects, we use a little isOver variable and set it once, so our move-in stuff gets fired only once
				if(!this.instance.isOver) {

					this.instance.isOver = 1;
					//Now we fake the start of dragging for the sortable instance,
					//by cloning the list group item, appending it to the sortable and using it as inst.currentItem
					//We can then fire the start event of the sortable with our passed browser event, and our own helper (so it doesn't create a new one)
					this.instance.currentItem = $(that).clone().removeAttr('id').appendTo(this.instance.element).data("sortable-item", true);
					this.instance.options._helper = this.instance.options.helper; //Store helper option to later restore it
					this.instance.options.helper = function() { return ui.helper[0]; };

					event.target = this.instance.currentItem[0];
					this.instance._mouseCapture(event, true);
					this.instance._mouseStart(event, true, true);

					//Because the browser event is way off the new appended portlet, we modify a couple of variables to reflect the changes
					this.instance.offset.click.top = inst.offset.click.top;
					this.instance.offset.click.left = inst.offset.click.left;
					this.instance.offset.parent.left -= inst.offset.parent.left - this.instance.offset.parent.left;
					this.instance.offset.parent.top -= inst.offset.parent.top - this.instance.offset.parent.top;

					inst._trigger("toSortable", event);
					inst.dropped = this.instance.element; //draggable revert needs that
					//hack so receive/update callbacks work (mostly)
					inst.currentItem = inst.element;
					this.instance.fromOutside = inst;

				}

				//Provided we did all the previous steps, we can fire the drag event of the sortable on every draggable drag, when it intersects with the sortable
				if(this.instance.currentItem) this.instance._mouseDrag(event);

			} else {

				//If it doesn't intersect with the sortable, and it intersected before,
				//we fake the drag stop of the sortable, but make sure it doesn't remove the helper by using cancelHelperRemoval
				if(this.instance.isOver) {

					this.instance.isOver = 0;
					this.instance.cancelHelperRemoval = true;

					//Prevent reverting on this forced stop
					this.instance.options.revert = false;

					// The out event needs to be triggered independently
					this.instance._trigger('out', event, this.instance._uiHash(this.instance));

					this.instance._mouseStop(event, true);
					this.instance.options.helper = this.instance.options._helper;

					//Now we remove our currentItem, the list group clone again, and the placeholder, and animate the helper back to it's original size
					this.instance.currentItem.remove();
					if(this.instance.placeholder) this.instance.placeholder.remove();

					inst._trigger("fromSortable", event);
					inst.dropped = false; //draggable revert needs that
				}

			};

		});

	}
});

$.ui.plugin.add("draggable", "cursor", {
	start: function(event, ui) {
		var t = $('body'), o = $(this).data('draggable').options;
		if (t.css("cursor")) o._cursor = t.css("cursor");
		t.css("cursor", o.cursor);
	},
	stop: function(event, ui) {
		var o = $(this).data('draggable').options;
		if (o._cursor) $('body').css("cursor", o._cursor);
	}
});

$.ui.plugin.add("draggable", "opacity", {
	start: function(event, ui) {
		var t = $(ui.helper), o = $(this).data('draggable').options;
		if(t.css("opacity")) o._opacity = t.css("opacity");
		t.css('opacity', o.opacity);
	},
	stop: function(event, ui) {
		var o = $(this).data('draggable').options;
		if(o._opacity) $(ui.helper).css('opacity', o._opacity);
	}
});

$.ui.plugin.add("draggable", "scroll", {
	start: function(event, ui) {
		var i = $(this).data("draggable");
		if(i.scrollParent[0] != document && i.scrollParent[0].tagName != 'HTML') i.overflowOffset = i.scrollParent.offset();
	},
	drag: function(event, ui) {

		var i = $(this).data("draggable"), o = i.options, scrolled = false;

		if(i.scrollParent[0] != document && i.scrollParent[0].tagName != 'HTML') {

			if(!o.axis || o.axis != 'x') {
				if((i.overflowOffset.top + i.scrollParent[0].offsetHeight) - event.pageY < o.scrollSensitivity)
					i.scrollParent[0].scrollTop = scrolled = i.scrollParent[0].scrollTop + o.scrollSpeed;
				else if(event.pageY - i.overflowOffset.top < o.scrollSensitivity)
					i.scrollParent[0].scrollTop = scrolled = i.scrollParent[0].scrollTop - o.scrollSpeed;
			}

			if(!o.axis || o.axis != 'y') {
				if((i.overflowOffset.left + i.scrollParent[0].offsetWidth) - event.pageX < o.scrollSensitivity)
					i.scrollParent[0].scrollLeft = scrolled = i.scrollParent[0].scrollLeft + o.scrollSpeed;
				else if(event.pageX - i.overflowOffset.left < o.scrollSensitivity)
					i.scrollParent[0].scrollLeft = scrolled = i.scrollParent[0].scrollLeft - o.scrollSpeed;
			}

		} else {

			if(!o.axis || o.axis != 'x') {
				if(event.pageY - $(document).scrollTop() < o.scrollSensitivity)
					scrolled = $(document).scrollTop($(document).scrollTop() - o.scrollSpeed);
				else if($(window).height() - (event.pageY - $(document).scrollTop()) < o.scrollSensitivity)
					scrolled = $(document).scrollTop($(document).scrollTop() + o.scrollSpeed);
			}

			if(!o.axis || o.axis != 'y') {
				if(event.pageX - $(document).scrollLeft() < o.scrollSensitivity)
					scrolled = $(document).scrollLeft($(document).scrollLeft() - o.scrollSpeed);
				else if($(window).width() - (event.pageX - $(document).scrollLeft()) < o.scrollSensitivity)
					scrolled = $(document).scrollLeft($(document).scrollLeft() + o.scrollSpeed);
			}

		}

		if(scrolled !== false && $.ui.ddmanager && !o.dropBehaviour)
			$.ui.ddmanager.prepareOffsets(i, event);

	}
});

$.ui.plugin.add("draggable", "snap", {
	start: function(event, ui) {

		var i = $(this).data("draggable"), o = i.options;
		i.snapElements = [];

		$(o.snap.constructor != String ? ( o.snap.items || ':data(draggable)' ) : o.snap).each(function() {
			var $t = $(this); var $o = $t.offset();
			if(this != i.element[0]) i.snapElements.push({
				item: this,
				width: $t.outerWidth(), height: $t.outerHeight(),
				top: $o.top, left: $o.left
			});
		});

	},
	drag: function(event, ui) {

		var inst = $(this).data("draggable"), o = inst.options;
		var d = o.snapTolerance;

		var x1 = ui.offset.left, x2 = x1 + inst.helperProportions.width,
			y1 = ui.offset.top, y2 = y1 + inst.helperProportions.height;

		for (var i = inst.snapElements.length - 1; i >= 0; i--){

			var l = inst.snapElements[i].left, r = l + inst.snapElements[i].width,
				t = inst.snapElements[i].top, b = t + inst.snapElements[i].height;

			//Yes, I know, this is insane ;)
			if(!((l-d < x1 && x1 < r+d && t-d < y1 && y1 < b+d) || (l-d < x1 && x1 < r+d && t-d < y2 && y2 < b+d) || (l-d < x2 && x2 < r+d && t-d < y1 && y1 < b+d) || (l-d < x2 && x2 < r+d && t-d < y2 && y2 < b+d))) {
				if(inst.snapElements[i].snapping) (inst.options.snap.release && inst.options.snap.release.call(inst.element, event, $.extend(inst._uiHash(), { snapItem: inst.snapElements[i].item })));
				inst.snapElements[i].snapping = false;
				continue;
			}

			if(o.snapMode != 'inner') {
				var ts = Math.abs(t - y2) <= d;
				var bs = Math.abs(b - y1) <= d;
				var ls = Math.abs(l - x2) <= d;
				var rs = Math.abs(r - x1) <= d;
				if(ts) ui.position.top = inst._convertPositionTo("relative", { top: t - inst.helperProportions.height, left: 0 }).top - inst.margins.top;
				if(bs) ui.position.top = inst._convertPositionTo("relative", { top: b, left: 0 }).top - inst.margins.top;
				if(ls) ui.position.left = inst._convertPositionTo("relative", { top: 0, left: l - inst.helperProportions.width }).left - inst.margins.left;
				if(rs) ui.position.left = inst._convertPositionTo("relative", { top: 0, left: r }).left - inst.margins.left;
			}

			var first = (ts || bs || ls || rs);

			if(o.snapMode != 'outer') {
				var ts = Math.abs(t - y1) <= d;
				var bs = Math.abs(b - y2) <= d;
				var ls = Math.abs(l - x1) <= d;
				var rs = Math.abs(r - x2) <= d;
				if(ts) ui.position.top = inst._convertPositionTo("relative", { top: t, left: 0 }).top - inst.margins.top;
				if(bs) ui.position.top = inst._convertPositionTo("relative", { top: b - inst.helperProportions.height, left: 0 }).top - inst.margins.top;
				if(ls) ui.position.left = inst._convertPositionTo("relative", { top: 0, left: l }).left - inst.margins.left;
				if(rs) ui.position.left = inst._convertPositionTo("relative", { top: 0, left: r - inst.helperProportions.width }).left - inst.margins.left;
			}

			if(!inst.snapElements[i].snapping && (ts || bs || ls || rs || first))
				(inst.options.snap.snap && inst.options.snap.snap.call(inst.element, event, $.extend(inst._uiHash(), { snapItem: inst.snapElements[i].item })));
			inst.snapElements[i].snapping = (ts || bs || ls || rs || first);

		};

	}
});

$.ui.plugin.add("draggable", "stack", {
	start: function(event, ui) {

		var o = $(this).data("draggable").options;

		var group = $.makeArray($(o.stack)).sort(function(a,b) {
			return (parseInt($(a).css("zIndex"),10) || 0) - (parseInt($(b).css("zIndex"),10) || 0);
		});
		if (!group.length) { return; }

		var min = parseInt(group[0].style.zIndex) || 0;
		$(group).each(function(i) {
			this.style.zIndex = min + i;
		});

		this[0].style.zIndex = min + group.length;

	}
});

$.ui.plugin.add("draggable", "zIndex", {
	start: function(event, ui) {
		var t = $(ui.helper), o = $(this).data("draggable").options;
		if(t.css("zIndex")) o._zIndex = t.css("zIndex");
		t.css('zIndex', o.zIndex);
	},
	stop: function(event, ui) {
		var o = $(this).data("draggable").options;
		if(o._zIndex) $(ui.helper).css('zIndex', o._zIndex);
	}
});

})(jQuery);
(function( $, undefined ) {

$.widget("ui.resizable", $.ui.mouse, {
	version: "1.9.2",
	widgetEventPrefix: "resize",
	options: {
		alsoResize: false,
		animate: false,
		animateDuration: "slow",
		animateEasing: "swing",
		aspectRatio: false,
		autoHide: false,
		containment: false,
		ghost: false,
		grid: false,
		handles: "e,s,se",
		helper: false,
		maxHeight: null,
		maxWidth: null,
		minHeight: 10,
		minWidth: 10,
		zIndex: 1000
	},
	_create: function() {

		var that = this, o = this.options;
		this.element.addClass("ui-resizable");

		$.extend(this, {
			_aspectRatio: !!(o.aspectRatio),
			aspectRatio: o.aspectRatio,
			originalElement: this.element,
			_proportionallyResizeElements: [],
			_helper: o.helper || o.ghost || o.animate ? o.helper || 'ui-resizable-helper' : null
		});

		//Wrap the element if it cannot hold child nodes
		if(this.element[0].nodeName.match(/canvas|textarea|input|select|button|img/i)) {

			//Create a wrapper element and set the wrapper to the new current internal element
			this.element.wrap(
				$('<div class="ui-wrapper" style="overflow: hidden;"></div>').css({
					position: this.element.css('position'),
					width: this.element.outerWidth(),
					height: this.element.outerHeight(),
					top: this.element.css('top'),
					left: this.element.css('left')
				})
			);

			//Overwrite the original this.element
			this.element = this.element.parent().data(
				"resizable", this.element.data('resizable')
			);

			this.elementIsWrapper = true;

			//Move margins to the wrapper
			this.element.css({ marginLeft: this.originalElement.css("marginLeft"), marginTop: this.originalElement.css("marginTop"), marginRight: this.originalElement.css("marginRight"), marginBottom: this.originalElement.css("marginBottom") });
			this.originalElement.css({ marginLeft: 0, marginTop: 0, marginRight: 0, marginBottom: 0});

			//Prevent Safari textarea resize
			this.originalResizeStyle = this.originalElement.css('resize');
			this.originalElement.css('resize', 'none');

			//Push the actual element to our proportionallyResize internal array
			this._proportionallyResizeElements.push(this.originalElement.css({ position: 'static', zoom: 1, display: 'block' }));

			// avoid IE jump (hard set the margin)
			this.originalElement.css({ margin: this.originalElement.css('margin') });

			// fix handlers offset
			this._proportionallyResize();

		}

		this.handles = o.handles || (!$('.ui-resizable-handle', this.element).length ? "e,s,se" : { n: '.ui-resizable-n', e: '.ui-resizable-e', s: '.ui-resizable-s', w: '.ui-resizable-w', se: '.ui-resizable-se', sw: '.ui-resizable-sw', ne: '.ui-resizable-ne', nw: '.ui-resizable-nw' });
		if(this.handles.constructor == String) {

			if(this.handles == 'all') this.handles = 'n,e,s,w,se,sw,ne,nw';
			var n = this.handles.split(","); this.handles = {};

			for(var i = 0; i < n.length; i++) {

				var handle = $.trim(n[i]), hname = 'ui-resizable-'+handle;
				var axis = $('<div class="ui-resizable-handle ' + hname + '"></div>');

				// Apply zIndex to all handles - see #7960
				axis.css({ zIndex: o.zIndex });

				//TODO : What's going on here?
				if ('se' == handle) {
					axis.addClass('ui-icon ui-icon-gripsmall-diagonal-se');
				};

				//Insert into internal handles object and append to element
				this.handles[handle] = '.ui-resizable-'+handle;
				this.element.append(axis);
			}

		}

		this._renderAxis = function(target) {

			target = target || this.element;

			for(var i in this.handles) {

				if(this.handles[i].constructor == String)
					this.handles[i] = $(this.handles[i], this.element).show();

				//Apply pad to wrapper element, needed to fix axis position (textarea, inputs, scrolls)
				if (this.elementIsWrapper && this.originalElement[0].nodeName.match(/textarea|input|select|button/i)) {

					var axis = $(this.handles[i], this.element), padWrapper = 0;

					//Checking the correct pad and border
					padWrapper = /sw|ne|nw|se|n|s/.test(i) ? axis.outerHeight() : axis.outerWidth();

					//The padding type i have to apply...
					var padPos = [ 'padding',
						/ne|nw|n/.test(i) ? 'Top' :
						/se|sw|s/.test(i) ? 'Bottom' :
						/^e$/.test(i) ? 'Right' : 'Left' ].join("");

					target.css(padPos, padWrapper);

					this._proportionallyResize();

				}

				//TODO: What's that good for? There's not anything to be executed left
				if(!$(this.handles[i]).length)
					continue;

			}
		};

		//TODO: make renderAxis a prototype function
		this._renderAxis(this.element);

		this._handles = $('.ui-resizable-handle', this.element)
			.disableSelection();

		//Matching axis name
		this._handles.mouseover(function() {
			if (!that.resizing) {
				if (this.className)
					var axis = this.className.match(/ui-resizable-(se|sw|ne|nw|n|e|s|w)/i);
				//Axis, default = se
				that.axis = axis && axis[1] ? axis[1] : 'se';
			}
		});

		//If we want to auto hide the elements
		if (o.autoHide) {
			this._handles.hide();
			$(this.element)
				.addClass("ui-resizable-autohide")
				.mouseenter(function() {
					if (o.disabled) return;
					$(this).removeClass("ui-resizable-autohide");
					that._handles.show();
				})
				.mouseleave(function(){
					if (o.disabled) return;
					if (!that.resizing) {
						$(this).addClass("ui-resizable-autohide");
						that._handles.hide();
					}
				});
		}

		//Initialize the mouse interaction
		this._mouseInit();

	},

	_destroy: function() {

		this._mouseDestroy();

		var _destroy = function(exp) {
			$(exp).removeClass("ui-resizable ui-resizable-disabled ui-resizable-resizing")
				.removeData("resizable").removeData("ui-resizable").unbind(".resizable").find('.ui-resizable-handle').remove();
		};

		//TODO: Unwrap at same DOM position
		if (this.elementIsWrapper) {
			_destroy(this.element);
			var wrapper = this.element;
			this.originalElement.css({
				position: wrapper.css('position'),
				width: wrapper.outerWidth(),
				height: wrapper.outerHeight(),
				top: wrapper.css('top'),
				left: wrapper.css('left')
			}).insertAfter( wrapper );
			wrapper.remove();
		}

		this.originalElement.css('resize', this.originalResizeStyle);
		_destroy(this.originalElement);

		return this;
	},

	_mouseCapture: function(event) {
		var handle = false;
		for (var i in this.handles) {
			if ($(this.handles[i])[0] == event.target) {
				handle = true;
			}
		}

		return !this.options.disabled && handle;
	},

	_mouseStart: function(event) {

		var o = this.options, iniPos = this.element.position(), el = this.element;

		this.resizing = true;
		this.documentScroll = { top: $(document).scrollTop(), left: $(document).scrollLeft() };

		// bugfix for http://dev.jquery.com/ticket/1749
		if (el.is('.ui-draggable') || (/absolute/).test(el.css('position'))) {
			el.css({ position: 'absolute', top: iniPos.top, left: iniPos.left });
		}

		this._renderProxy();

		var curleft = num(this.helper.css('left')), curtop = num(this.helper.css('top'));

		if (o.containment) {
			curleft += $(o.containment).scrollLeft() || 0;
			curtop += $(o.containment).scrollTop() || 0;
		}

		//Store needed variables
		this.offset = this.helper.offset();
		this.position = { left: curleft, top: curtop };
		this.size = this._helper ? { width: el.outerWidth(), height: el.outerHeight() } : { width: el.width(), height: el.height() };
		this.originalSize = this._helper ? { width: el.outerWidth(), height: el.outerHeight() } : { width: el.width(), height: el.height() };
		this.originalPosition = { left: curleft, top: curtop };
		this.sizeDiff = { width: el.outerWidth() - el.width(), height: el.outerHeight() - el.height() };
		this.originalMousePosition = { left: event.pageX, top: event.pageY };

		//Aspect Ratio
		this.aspectRatio = (typeof o.aspectRatio == 'number') ? o.aspectRatio : ((this.originalSize.width / this.originalSize.height) || 1);

		var cursor = $('.ui-resizable-' + this.axis).css('cursor');
		$('body').css('cursor', cursor == 'auto' ? this.axis + '-resize' : cursor);

		el.addClass("ui-resizable-resizing");
		this._propagate("start", event);
		return true;
	},

	_mouseDrag: function(event) {

		//Increase performance, avoid regex
		var el = this.helper, o = this.options, props = {},
			that = this, smp = this.originalMousePosition, a = this.axis;

		var dx = (event.pageX-smp.left)||0, dy = (event.pageY-smp.top)||0;
		var trigger = this._change[a];
		if (!trigger) return false;

		// Calculate the attrs that will be change
		var data = trigger.apply(this, [event, dx, dy]);

		// Put this in the mouseDrag handler since the user can start pressing shift while resizing
		this._updateVirtualBoundaries(event.shiftKey);
		if (this._aspectRatio || event.shiftKey)
			data = this._updateRatio(data, event);

		data = this._respectSize(data, event);

		// plugins callbacks need to be called first
		this._propagate("resize", event);

		el.css({
			top: this.position.top + "px", left: this.position.left + "px",
			width: this.size.width + "px", height: this.size.height + "px"
		});

		if (!this._helper && this._proportionallyResizeElements.length)
			this._proportionallyResize();

		this._updateCache(data);

		// calling the user callback at the end
		this._trigger('resize', event, this.ui());

		return false;
	},

	_mouseStop: function(event) {

		this.resizing = false;
		var o = this.options, that = this;

		if(this._helper) {
			var pr = this._proportionallyResizeElements, ista = pr.length && (/textarea/i).test(pr[0].nodeName),
				soffseth = ista && $.ui.hasScroll(pr[0], 'left') /* TODO - jump height */ ? 0 : that.sizeDiff.height,
				soffsetw = ista ? 0 : that.sizeDiff.width;

			var s = { width: (that.helper.width()  - soffsetw), height: (that.helper.height() - soffseth) },
				left = (parseInt(that.element.css('left'), 10) + (that.position.left - that.originalPosition.left)) || null,
				top = (parseInt(that.element.css('top'), 10) + (that.position.top - that.originalPosition.top)) || null;

			if (!o.animate)
				this.element.css($.extend(s, { top: top, left: left }));

			that.helper.height(that.size.height);
			that.helper.width(that.size.width);

			if (this._helper && !o.animate) this._proportionallyResize();
		}

		$('body').css('cursor', 'auto');

		this.element.removeClass("ui-resizable-resizing");

		this._propagate("stop", event);

		if (this._helper) this.helper.remove();
		return false;

	},

	_updateVirtualBoundaries: function(forceAspectRatio) {
		var o = this.options, pMinWidth, pMaxWidth, pMinHeight, pMaxHeight, b;

		b = {
			minWidth: isNumber(o.minWidth) ? o.minWidth : 0,
			maxWidth: isNumber(o.maxWidth) ? o.maxWidth : Infinity,
			minHeight: isNumber(o.minHeight) ? o.minHeight : 0,
			maxHeight: isNumber(o.maxHeight) ? o.maxHeight : Infinity
		};

		if(this._aspectRatio || forceAspectRatio) {
			// We want to create an enclosing box whose aspect ration is the requested one
			// First, compute the "projected" size for each dimension based on the aspect ratio and other dimension
			pMinWidth = b.minHeight * this.aspectRatio;
			pMinHeight = b.minWidth / this.aspectRatio;
			pMaxWidth = b.maxHeight * this.aspectRatio;
			pMaxHeight = b.maxWidth / this.aspectRatio;

			if(pMinWidth > b.minWidth) b.minWidth = pMinWidth;
			if(pMinHeight > b.minHeight) b.minHeight = pMinHeight;
			if(pMaxWidth < b.maxWidth) b.maxWidth = pMaxWidth;
			if(pMaxHeight < b.maxHeight) b.maxHeight = pMaxHeight;
		}
		this._vBoundaries = b;
	},

	_updateCache: function(data) {
		var o = this.options;
		this.offset = this.helper.offset();
		if (isNumber(data.left)) this.position.left = data.left;
		if (isNumber(data.top)) this.position.top = data.top;
		if (isNumber(data.height)) this.size.height = data.height;
		if (isNumber(data.width)) this.size.width = data.width;
	},

	_updateRatio: function(data, event) {

		var o = this.options, cpos = this.position, csize = this.size, a = this.axis;

		if (isNumber(data.height)) data.width = (data.height * this.aspectRatio);
		else if (isNumber(data.width)) data.height = (data.width / this.aspectRatio);

		if (a == 'sw') {
			data.left = cpos.left + (csize.width - data.width);
			data.top = null;
		}
		if (a == 'nw') {
			data.top = cpos.top + (csize.height - data.height);
			data.left = cpos.left + (csize.width - data.width);
		}

		return data;
	},

	_respectSize: function(data, event) {

		var el = this.helper, o = this._vBoundaries, pRatio = this._aspectRatio || event.shiftKey, a = this.axis,
				ismaxw = isNumber(data.width) && o.maxWidth && (o.maxWidth < data.width), ismaxh = isNumber(data.height) && o.maxHeight && (o.maxHeight < data.height),
					isminw = isNumber(data.width) && o.minWidth && (o.minWidth > data.width), isminh = isNumber(data.height) && o.minHeight && (o.minHeight > data.height);

		if (isminw) data.width = o.minWidth;
		if (isminh) data.height = o.minHeight;
		if (ismaxw) data.width = o.maxWidth;
		if (ismaxh) data.height = o.maxHeight;

		var dw = this.originalPosition.left + this.originalSize.width, dh = this.position.top + this.size.height;
		var cw = /sw|nw|w/.test(a), ch = /nw|ne|n/.test(a);

		if (isminw && cw) data.left = dw - o.minWidth;
		if (ismaxw && cw) data.left = dw - o.maxWidth;
		if (isminh && ch)	data.top = dh - o.minHeight;
		if (ismaxh && ch)	data.top = dh - o.maxHeight;

		// fixing jump error on top/left - bug #2330
		var isNotwh = !data.width && !data.height;
		if (isNotwh && !data.left && data.top) data.top = null;
		else if (isNotwh && !data.top && data.left) data.left = null;

		return data;
	},

	_proportionallyResize: function() {

		var o = this.options;
		if (!this._proportionallyResizeElements.length) return;
		var element = this.helper || this.element;

		for (var i=0; i < this._proportionallyResizeElements.length; i++) {

			var prel = this._proportionallyResizeElements[i];

			if (!this.borderDif) {
				var b = [prel.css('borderTopWidth'), prel.css('borderRightWidth'), prel.css('borderBottomWidth'), prel.css('borderLeftWidth')],
					p = [prel.css('paddingTop'), prel.css('paddingRight'), prel.css('paddingBottom'), prel.css('paddingLeft')];

				this.borderDif = $.map(b, function(v, i) {
					var border = parseInt(v,10)||0, padding = parseInt(p[i],10)||0;
					return border + padding;
				});
			}

			prel.css({
				height: (element.height() - this.borderDif[0] - this.borderDif[2]) || 0,
				width: (element.width() - this.borderDif[1] - this.borderDif[3]) || 0
			});

		};

	},

	_renderProxy: function() {

		var el = this.element, o = this.options;
		this.elementOffset = el.offset();

		if(this._helper) {

			this.helper = this.helper || $('<div style="overflow:hidden;"></div>');

			// fix ie6 offset TODO: This seems broken
			var ie6offset = ($.ui.ie6 ? 1 : 0),
			pxyoffset = ( $.ui.ie6 ? 2 : -1 );

			this.helper.addClass(this._helper).css({
				width: this.element.outerWidth() + pxyoffset,
				height: this.element.outerHeight() + pxyoffset,
				position: 'absolute',
				left: this.elementOffset.left - ie6offset +'px',
				top: this.elementOffset.top - ie6offset +'px',
				zIndex: ++o.zIndex //TODO: Don't modify option
			});

			this.helper
				.appendTo("body")
				.disableSelection();

		} else {
			this.helper = this.element;
		}

	},

	_change: {
		e: function(event, dx, dy) {
			return { width: this.originalSize.width + dx };
		},
		w: function(event, dx, dy) {
			var o = this.options, cs = this.originalSize, sp = this.originalPosition;
			return { left: sp.left + dx, width: cs.width - dx };
		},
		n: function(event, dx, dy) {
			var o = this.options, cs = this.originalSize, sp = this.originalPosition;
			return { top: sp.top + dy, height: cs.height - dy };
		},
		s: function(event, dx, dy) {
			return { height: this.originalSize.height + dy };
		},
		se: function(event, dx, dy) {
			return $.extend(this._change.s.apply(this, arguments), this._change.e.apply(this, [event, dx, dy]));
		},
		sw: function(event, dx, dy) {
			return $.extend(this._change.s.apply(this, arguments), this._change.w.apply(this, [event, dx, dy]));
		},
		ne: function(event, dx, dy) {
			return $.extend(this._change.n.apply(this, arguments), this._change.e.apply(this, [event, dx, dy]));
		},
		nw: function(event, dx, dy) {
			return $.extend(this._change.n.apply(this, arguments), this._change.w.apply(this, [event, dx, dy]));
		}
	},

	_propagate: function(n, event) {
		$.ui.plugin.call(this, n, [event, this.ui()]);
		(n != "resize" && this._trigger(n, event, this.ui()));
	},

	plugins: {},

	ui: function() {
		return {
			originalElement: this.originalElement,
			element: this.element,
			helper: this.helper,
			position: this.position,
			size: this.size,
			originalSize: this.originalSize,
			originalPosition: this.originalPosition
		};
	}

});

/*
 * Resizable Extensions
 */

$.ui.plugin.add("resizable", "alsoResize", {

	start: function (event, ui) {
		var that = $(this).data("resizable"), o = that.options;

		var _store = function (exp) {
			$(exp).each(function() {
				var el = $(this);
				el.data("resizable-alsoresize", {
					width: parseInt(el.width(), 10), height: parseInt(el.height(), 10),
					left: parseInt(el.css('left'), 10), top: parseInt(el.css('top'), 10)
				});
			});
		};

		if (typeof(o.alsoResize) == 'object' && !o.alsoResize.parentNode) {
			if (o.alsoResize.length) { o.alsoResize = o.alsoResize[0]; _store(o.alsoResize); }
			else { $.each(o.alsoResize, function (exp) { _store(exp); }); }
		}else{
			_store(o.alsoResize);
		}
	},

	resize: function (event, ui) {
		var that = $(this).data("resizable"), o = that.options, os = that.originalSize, op = that.originalPosition;

		var delta = {
			height: (that.size.height - os.height) || 0, width: (that.size.width - os.width) || 0,
			top: (that.position.top - op.top) || 0, left: (that.position.left - op.left) || 0
		},

		_alsoResize = function (exp, c) {
			$(exp).each(function() {
				var el = $(this), start = $(this).data("resizable-alsoresize"), style = {},
					css = c && c.length ? c : el.parents(ui.originalElement[0]).length ? ['width', 'height'] : ['width', 'height', 'top', 'left'];

				$.each(css, function (i, prop) {
					var sum = (start[prop]||0) + (delta[prop]||0);
					if (sum && sum >= 0)
						style[prop] = sum || null;
				});

				el.css(style);
			});
		};

		if (typeof(o.alsoResize) == 'object' && !o.alsoResize.nodeType) {
			$.each(o.alsoResize, function (exp, c) { _alsoResize(exp, c); });
		}else{
			_alsoResize(o.alsoResize);
		}
	},

	stop: function (event, ui) {
		$(this).removeData("resizable-alsoresize");
	}
});

$.ui.plugin.add("resizable", "animate", {

	stop: function(event, ui) {
		var that = $(this).data("resizable"), o = that.options;

		var pr = that._proportionallyResizeElements, ista = pr.length && (/textarea/i).test(pr[0].nodeName),
					soffseth = ista && $.ui.hasScroll(pr[0], 'left') /* TODO - jump height */ ? 0 : that.sizeDiff.height,
						soffsetw = ista ? 0 : that.sizeDiff.width;

		var style = { width: (that.size.width - soffsetw), height: (that.size.height - soffseth) },
					left = (parseInt(that.element.css('left'), 10) + (that.position.left - that.originalPosition.left)) || null,
						top = (parseInt(that.element.css('top'), 10) + (that.position.top - that.originalPosition.top)) || null;

		that.element.animate(
			$.extend(style, top && left ? { top: top, left: left } : {}), {
				duration: o.animateDuration,
				easing: o.animateEasing,
				step: function() {

					var data = {
						width: parseInt(that.element.css('width'), 10),
						height: parseInt(that.element.css('height'), 10),
						top: parseInt(that.element.css('top'), 10),
						left: parseInt(that.element.css('left'), 10)
					};

					if (pr && pr.length) $(pr[0]).css({ width: data.width, height: data.height });

					// propagating resize, and updating values for each animation step
					that._updateCache(data);
					that._propagate("resize", event);

				}
			}
		);
	}

});

$.ui.plugin.add("resizable", "containment", {

	start: function(event, ui) {
		var that = $(this).data("resizable"), o = that.options, el = that.element;
		var oc = o.containment,	ce = (oc instanceof $) ? oc.get(0) : (/parent/.test(oc)) ? el.parent().get(0) : oc;
		if (!ce) return;

		that.containerElement = $(ce);

		if (/document/.test(oc) || oc == document) {
			that.containerOffset = { left: 0, top: 0 };
			that.containerPosition = { left: 0, top: 0 };

			that.parentData = {
				element: $(document), left: 0, top: 0,
				width: $(document).width(), height: $(document).height() || document.body.parentNode.scrollHeight
			};
		}

		// i'm a node, so compute top, left, right, bottom
		else {
			var element = $(ce), p = [];
			$([ "Top", "Right", "Left", "Bottom" ]).each(function(i, name) { p[i] = num(element.css("padding" + name)); });

			that.containerOffset = element.offset();
			that.containerPosition = element.position();
			that.containerSize = { height: (element.innerHeight() - p[3]), width: (element.innerWidth() - p[1]) };

			var co = that.containerOffset, ch = that.containerSize.height,	cw = that.containerSize.width,
						width = ($.ui.hasScroll(ce, "left") ? ce.scrollWidth : cw ), height = ($.ui.hasScroll(ce) ? ce.scrollHeight : ch);

			that.parentData = {
				element: ce, left: co.left, top: co.top, width: width, height: height
			};
		}
	},

	resize: function(event, ui) {
		var that = $(this).data("resizable"), o = that.options,
				ps = that.containerSize, co = that.containerOffset, cs = that.size, cp = that.position,
				pRatio = that._aspectRatio || event.shiftKey, cop = { top:0, left:0 }, ce = that.containerElement;

		if (ce[0] != document && (/static/).test(ce.css('position'))) cop = co;

		if (cp.left < (that._helper ? co.left : 0)) {
			that.size.width = that.size.width + (that._helper ? (that.position.left - co.left) : (that.position.left - cop.left));
			if (pRatio) that.size.height = that.size.width / that.aspectRatio;
			that.position.left = o.helper ? co.left : 0;
		}

		if (cp.top < (that._helper ? co.top : 0)) {
			that.size.height = that.size.height + (that._helper ? (that.position.top - co.top) : that.position.top);
			if (pRatio) that.size.width = that.size.height * that.aspectRatio;
			that.position.top = that._helper ? co.top : 0;
		}

		that.offset.left = that.parentData.left+that.position.left;
		that.offset.top = that.parentData.top+that.position.top;

		var woset = Math.abs( (that._helper ? that.offset.left - cop.left : (that.offset.left - cop.left)) + that.sizeDiff.width ),
					hoset = Math.abs( (that._helper ? that.offset.top - cop.top : (that.offset.top - co.top)) + that.sizeDiff.height );

		var isParent = that.containerElement.get(0) == that.element.parent().get(0),
			isOffsetRelative = /relative|absolute/.test(that.containerElement.css('position'));

		if(isParent && isOffsetRelative) woset -= that.parentData.left;

		if (woset + that.size.width >= that.parentData.width) {
			that.size.width = that.parentData.width - woset;
			if (pRatio) that.size.height = that.size.width / that.aspectRatio;
		}

		if (hoset + that.size.height >= that.parentData.height) {
			that.size.height = that.parentData.height - hoset;
			if (pRatio) that.size.width = that.size.height * that.aspectRatio;
		}
	},

	stop: function(event, ui){
		var that = $(this).data("resizable"), o = that.options, cp = that.position,
				co = that.containerOffset, cop = that.containerPosition, ce = that.containerElement;

		var helper = $(that.helper), ho = helper.offset(), w = helper.outerWidth() - that.sizeDiff.width, h = helper.outerHeight() - that.sizeDiff.height;

		if (that._helper && !o.animate && (/relative/).test(ce.css('position')))
			$(this).css({ left: ho.left - cop.left - co.left, width: w, height: h });

		if (that._helper && !o.animate && (/static/).test(ce.css('position')))
			$(this).css({ left: ho.left - cop.left - co.left, width: w, height: h });

	}
});

$.ui.plugin.add("resizable", "ghost", {

	start: function(event, ui) {

		var that = $(this).data("resizable"), o = that.options, cs = that.size;

		that.ghost = that.originalElement.clone();
		that.ghost
			.css({ opacity: .25, display: 'block', position: 'relative', height: cs.height, width: cs.width, margin: 0, left: 0, top: 0 })
			.addClass('ui-resizable-ghost')
			.addClass(typeof o.ghost == 'string' ? o.ghost : '');

		that.ghost.appendTo(that.helper);

	},

	resize: function(event, ui){
		var that = $(this).data("resizable"), o = that.options;
		if (that.ghost) that.ghost.css({ position: 'relative', height: that.size.height, width: that.size.width });
	},

	stop: function(event, ui){
		var that = $(this).data("resizable"), o = that.options;
		if (that.ghost && that.helper) that.helper.get(0).removeChild(that.ghost.get(0));
	}

});

$.ui.plugin.add("resizable", "grid", {

	resize: function(event, ui) {
		var that = $(this).data("resizable"), o = that.options, cs = that.size, os = that.originalSize, op = that.originalPosition, a = that.axis, ratio = o._aspectRatio || event.shiftKey;
		o.grid = typeof o.grid == "number" ? [o.grid, o.grid] : o.grid;
		var ox = Math.round((cs.width - os.width) / (o.grid[0]||1)) * (o.grid[0]||1), oy = Math.round((cs.height - os.height) / (o.grid[1]||1)) * (o.grid[1]||1);

		if (/^(se|s|e)$/.test(a)) {
			that.size.width = os.width + ox;
			that.size.height = os.height + oy;
		}
		else if (/^(ne)$/.test(a)) {
			that.size.width = os.width + ox;
			that.size.height = os.height + oy;
			that.position.top = op.top - oy;
		}
		else if (/^(sw)$/.test(a)) {
			that.size.width = os.width + ox;
			that.size.height = os.height + oy;
			that.position.left = op.left - ox;
		}
		else {
			that.size.width = os.width + ox;
			that.size.height = os.height + oy;
			that.position.top = op.top - oy;
			that.position.left = op.left - ox;
		}
	}

});

var num = function(v) {
	return parseInt(v, 10) || 0;
};

var isNumber = function(value) {
	return !isNaN(parseInt(value, 10));
};

})(jQuery);
(function( $, undefined ) {

var lastActive, startXPos, startYPos, clickDragged,
	baseClasses = "ui-button ui-widget ui-state-default ui-corner-all",
	stateClasses = "ui-state-hover ui-state-active ",
	typeClasses = "ui-button-icons-only ui-button-icon-only ui-button-text-icons ui-button-text-icon-primary ui-button-text-icon-secondary ui-button-text-only",
	formResetHandler = function() {
		var buttons = $( this ).find( ":ui-button" );
		setTimeout(function() {
			buttons.button( "refresh" );
		}, 1 );
	},
	radioGroup = function( radio ) {
		var name = radio.name,
			form = radio.form,
			radios = $( [] );
		if ( name ) {
			if ( form ) {
				radios = $( form ).find( "[name='" + name + "']" );
			} else {
				radios = $( "[name='" + name + "']", radio.ownerDocument )
					.filter(function() {
						return !this.form;
					});
			}
		}
		return radios;
	};

$.widget( "ui.button", {
	version: "1.9.2",
	defaultElement: "<button>",
	options: {
		disabled: null,
		text: true,
		label: null,
		icons: {
			primary: null,
			secondary: null
		}
	},
	_create: function() {
		this.element.closest( "form" )
			.unbind( "reset" + this.eventNamespace )
			.bind( "reset" + this.eventNamespace, formResetHandler );

		if ( typeof this.options.disabled !== "boolean" ) {
			this.options.disabled = !!this.element.prop( "disabled" );
		} else {
			this.element.prop( "disabled", this.options.disabled );
		}

		this._determineButtonType();
		this.hasTitle = !!this.buttonElement.attr( "title" );

		var that = this,
			options = this.options,
			toggleButton = this.type === "checkbox" || this.type === "radio",
			activeClass = !toggleButton ? "ui-state-active" : "",
			focusClass = "ui-state-focus";

		if ( options.label === null ) {
			options.label = (this.type === "input" ? this.buttonElement.val() : this.buttonElement.html());
		}

		this._hoverable( this.buttonElement );

		this.buttonElement
			.addClass( baseClasses )
			.attr( "role", "button" )
			.bind( "mouseenter" + this.eventNamespace, function() {
				if ( options.disabled ) {
					return;
				}
				if ( this === lastActive ) {
					$( this ).addClass( "ui-state-active" );
				}
			})
			.bind( "mouseleave" + this.eventNamespace, function() {
				if ( options.disabled ) {
					return;
				}
				$( this ).removeClass( activeClass );
			})
			.bind( "click" + this.eventNamespace, function( event ) {
				if ( options.disabled ) {
					event.preventDefault();
					event.stopImmediatePropagation();
				}
			});

		this.element
			.bind( "focus" + this.eventNamespace, function() {
				// no need to check disabled, focus won't be triggered anyway
				that.buttonElement.addClass( focusClass );
			})
			.bind( "blur" + this.eventNamespace, function() {
				that.buttonElement.removeClass( focusClass );
			});

		if ( toggleButton ) {
			this.element.bind( "change" + this.eventNamespace, function() {
				if ( clickDragged ) {
					return;
				}
				that.refresh();
			});
			// if mouse moves between mousedown and mouseup (drag) set clickDragged flag
			// prevents issue where button state changes but checkbox/radio checked state
			// does not in Firefox (see ticket #6970)
			this.buttonElement
				.bind( "mousedown" + this.eventNamespace, function( event ) {
					if ( options.disabled ) {
						return;
					}
					clickDragged = false;
					startXPos = event.pageX;
					startYPos = event.pageY;
				})
				.bind( "mouseup" + this.eventNamespace, function( event ) {
					if ( options.disabled ) {
						return;
					}
					if ( startXPos !== event.pageX || startYPos !== event.pageY ) {
						clickDragged = true;
					}
			});
		}

		if ( this.type === "checkbox" ) {
			this.buttonElement.bind( "click" + this.eventNamespace, function() {
				if ( options.disabled || clickDragged ) {
					return false;
				}
				$( this ).toggleClass( "ui-state-active" );
				that.buttonElement.attr( "aria-pressed", that.element[0].checked );
			});
		} else if ( this.type === "radio" ) {
			this.buttonElement.bind( "click" + this.eventNamespace, function() {
				if ( options.disabled || clickDragged ) {
					return false;
				}
				$( this ).addClass( "ui-state-active" );
				that.buttonElement.attr( "aria-pressed", "true" );

				var radio = that.element[ 0 ];
				radioGroup( radio )
					.not( radio )
					.map(function() {
						return $( this ).button( "widget" )[ 0 ];
					})
					.removeClass( "ui-state-active" )
					.attr( "aria-pressed", "false" );
			});
		} else {
			this.buttonElement
				.bind( "mousedown" + this.eventNamespace, function() {
					if ( options.disabled ) {
						return false;
					}
					$( this ).addClass( "ui-state-active" );
					lastActive = this;
					that.document.one( "mouseup", function() {
						lastActive = null;
					});
				})
				.bind( "mouseup" + this.eventNamespace, function() {
					if ( options.disabled ) {
						return false;
					}
					$( this ).removeClass( "ui-state-active" );
				})
				.bind( "keydown" + this.eventNamespace, function(event) {
					if ( options.disabled ) {
						return false;
					}
					if ( event.keyCode === $.ui.keyCode.SPACE || event.keyCode === $.ui.keyCode.ENTER ) {
						$( this ).addClass( "ui-state-active" );
					}
				})
				.bind( "keyup" + this.eventNamespace, function() {
					$( this ).removeClass( "ui-state-active" );
				});

			if ( this.buttonElement.is("a") ) {
				this.buttonElement.keyup(function(event) {
					if ( event.keyCode === $.ui.keyCode.SPACE ) {
						// TODO pass through original event correctly (just as 2nd argument doesn't work)
						$( this ).click();
					}
				});
			}
		}

		// TODO: pull out $.Widget's handling for the disabled option into
		// $.Widget.prototype._setOptionDisabled so it's easy to proxy and can
		// be overridden by individual plugins
		this._setOption( "disabled", options.disabled );
		this._resetButton();
	},

	_determineButtonType: function() {
		var ancestor, labelSelector, checked;

		if ( this.element.is("[type=checkbox]") ) {
			this.type = "checkbox";
		} else if ( this.element.is("[type=radio]") ) {
			this.type = "radio";
		} else if ( this.element.is("input") ) {
			this.type = "input";
		} else {
			this.type = "button";
		}

		if ( this.type === "checkbox" || this.type === "radio" ) {
			// we don't search against the document in case the element
			// is disconnected from the DOM
			ancestor = this.element.parents().last();
			labelSelector = "label[for='" + this.element.attr("id") + "']";
			this.buttonElement = ancestor.find( labelSelector );
			if ( !this.buttonElement.length ) {
				ancestor = ancestor.length ? ancestor.siblings() : this.element.siblings();
				this.buttonElement = ancestor.filter( labelSelector );
				if ( !this.buttonElement.length ) {
					this.buttonElement = ancestor.find( labelSelector );
				}
			}
			this.element.addClass( "ui-helper-hidden-accessible" );

			checked = this.element.is( ":checked" );
			if ( checked ) {
				this.buttonElement.addClass( "ui-state-active" );
			}
			this.buttonElement.prop( "aria-pressed", checked );
		} else {
			this.buttonElement = this.element;
		}
	},

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

	_destroy: function() {
		this.element
			.removeClass( "ui-helper-hidden-accessible" );
		this.buttonElement
			.removeClass( baseClasses + " " + stateClasses + " " + typeClasses )
			.removeAttr( "role" )
			.removeAttr( "aria-pressed" )
			.html( this.buttonElement.find(".ui-button-text").html() );

		if ( !this.hasTitle ) {
			this.buttonElement.removeAttr( "title" );
		}
	},

	_setOption: function( key, value ) {
		this._super( key, value );
		if ( key === "disabled" ) {
			if ( value ) {
				this.element.prop( "disabled", true );
			} else {
				this.element.prop( "disabled", false );
			}
			return;
		}
		this._resetButton();
	},

	refresh: function() {
		//See #8237 & #8828
		var isDisabled = this.element.is( "input, button" ) ? this.element.is( ":disabled" ) : this.element.hasClass( "ui-button-disabled" );

		if ( isDisabled !== this.options.disabled ) {
			this._setOption( "disabled", isDisabled );
		}
		if ( this.type === "radio" ) {
			radioGroup( this.element[0] ).each(function() {
				if ( $( this ).is( ":checked" ) ) {
					$( this ).button( "widget" )
						.addClass( "ui-state-active" )
						.attr( "aria-pressed", "true" );
				} else {
					$( this ).button( "widget" )
						.removeClass( "ui-state-active" )
						.attr( "aria-pressed", "false" );
				}
			});
		} else if ( this.type === "checkbox" ) {
			if ( this.element.is( ":checked" ) ) {
				this.buttonElement
					.addClass( "ui-state-active" )
					.attr( "aria-pressed", "true" );
			} else {
				this.buttonElement
					.removeClass( "ui-state-active" )
					.attr( "aria-pressed", "false" );
			}
		}
	},

	_resetButton: function() {
		if ( this.type === "input" ) {
			if ( this.options.label ) {
				this.element.val( this.options.label );
			}
			return;
		}
		var buttonElement = this.buttonElement.removeClass( typeClasses ),
			buttonText = $( "<span></span>", this.document[0] )
				.addClass( "ui-button-text" )
				.html( this.options.label )
				.appendTo( buttonElement.empty() )
				.text(),
			icons = this.options.icons,
			multipleIcons = icons.primary && icons.secondary,
			buttonClasses = [];

		if ( icons.primary || icons.secondary ) {
			if ( this.options.text ) {
				buttonClasses.push( "ui-button-text-icon" + ( multipleIcons ? "s" : ( icons.primary ? "-primary" : "-secondary" ) ) );
			}

			if ( icons.primary ) {
				buttonElement.prepend( "<span class='ui-button-icon-primary ui-icon " + icons.primary + "'></span>" );
			}

			if ( icons.secondary ) {
				buttonElement.append( "<span class='ui-button-icon-secondary ui-icon " + icons.secondary + "'></span>" );
			}

			if ( !this.options.text ) {
				buttonClasses.push( multipleIcons ? "ui-button-icons-only" : "ui-button-icon-only" );

				if ( !this.hasTitle ) {
					buttonElement.attr( "title", $.trim( buttonText ) );
				}
			}
		} else {
			buttonClasses.push( "ui-button-text-only" );
		}
		buttonElement.addClass( buttonClasses.join( " " ) );
	}
});

$.widget( "ui.buttonset", {
	version: "1.9.2",
	options: {
		items: "button, input[type=button], input[type=submit], input[type=reset], input[type=checkbox], input[type=radio], a, :data(button)"
	},

	_create: function() {
		this.element.addClass( "ui-buttonset" );
	},

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

	_setOption: function( key, value ) {
		if ( key === "disabled" ) {
			this.buttons.button( "option", key, value );
		}

		this._super( key, value );
	},

	refresh: function() {
		var rtl = this.element.css( "direction" ) === "rtl";

		this.buttons = this.element.find( this.options.items )
			.filter( ":ui-button" )
				.button( "refresh" )
			.end()
			.not( ":ui-button" )
				.button()
			.end()
			.map(function() {
				return $( this ).button( "widget" )[ 0 ];
			})
				.removeClass( "ui-corner-all ui-corner-left ui-corner-right" )
				.filter( ":first" )
					.addClass( rtl ? "ui-corner-right" : "ui-corner-left" )
				.end()
				.filter( ":last" )
					.addClass( rtl ? "ui-corner-left" : "ui-corner-right" )
				.end()
			.end();
	},

	_destroy: function() {
		this.element.removeClass( "ui-buttonset" );
		this.buttons
			.map(function() {
				return $( this ).button( "widget" )[ 0 ];
			})
				.removeClass( "ui-corner-left ui-corner-right" )
			.end()
			.button( "destroy" );
	}
});

}( jQuery ) );
(function( $, undefined ) {

$.extend($.ui, { datepicker: { version: "1.9.2" } });

var PROP_NAME = 'datepicker';
var dpuuid = new Date().getTime();
var instActive;

/* Date picker manager.
   Use the singleton instance of this class, $.datepicker, to interact with the date picker.
   Settings for (groups of) date pickers are maintained in an instance object,
   allowing multiple different settings on the same page. */

function Datepicker() {
	this.debug = false; // Change this to true to start debugging
	this._curInst = null; // The current instance in use
	this._keyEvent = false; // If the last event was a key event
	this._disabledInputs = []; // List of date picker inputs that have been disabled
	this._datepickerShowing = false; // True if the popup picker is showing , false if not
	this._inDialog = false; // True if showing within a "dialog", false if not
	this._mainDivId = 'ui-datepicker-div'; // The ID of the main datepicker division
	this._inlineClass = 'ui-datepicker-inline'; // The name of the inline marker class
	this._appendClass = 'ui-datepicker-append'; // The name of the append marker class
	this._triggerClass = 'ui-datepicker-trigger'; // The name of the trigger marker class
	this._dialogClass = 'ui-datepicker-dialog'; // The name of the dialog marker class
	this._disableClass = 'ui-datepicker-disabled'; // The name of the disabled covering marker class
	this._unselectableClass = 'ui-datepicker-unselectable'; // The name of the unselectable cell marker class
	this._currentClass = 'ui-datepicker-current-day'; // The name of the current day marker class
	this._dayOverClass = 'ui-datepicker-days-cell-over'; // The name of the day hover marker class
	this.regional = []; // Available regional settings, indexed by language code
	this.regional[''] = { // Default regional settings
		closeText: 'Done', // Display text for close link
		prevText: 'Prev', // Display text for previous month link
		nextText: 'Next', // Display text for next month link
		currentText: 'Today', // Display text for current month link
		monthNames: ['January','February','March','April','May','June',
			'July','August','September','October','November','December'], // Names of months for drop-down and formatting
		monthNamesShort: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'], // For formatting
		dayNames: ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'], // For formatting
		dayNamesShort: ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat'], // For formatting
		dayNamesMin: ['Su','Mo','Tu','We','Th','Fr','Sa'], // Column headings for days starting at Sunday
		weekHeader: 'Wk', // Column header for week of the year
		dateFormat: 'mm/dd/yy', // See format options on parseDate
		firstDay: 0, // The first day of the week, Sun = 0, Mon = 1, ...
		isRTL: false, // True if right-to-left language, false if left-to-right
		showMonthAfterYear: false, // True if the year select precedes month, false for month then year
		yearSuffix: '' // Additional text to append to the year in the month headers
	};
	this._defaults = { // Global defaults for all the date picker instances
		showOn: 'focus', // 'focus' for popup on focus,
			// 'button' for trigger button, or 'both' for either
		showAnim: 'fadeIn', // Name of jQuery animation for popup
		showOptions: {}, // Options for enhanced animations
		defaultDate: null, // Used when field is blank: actual date,
			// +/-number for offset from today, null for today
		appendText: '', // Display text following the input box, e.g. showing the format
		buttonText: '...', // Text for trigger button
		buttonImage: '', // URL for trigger button image
		buttonImageOnly: false, // True if the image appears alone, false if it appears on a button
		hideIfNoPrevNext: false, // True to hide next/previous month links
			// if not applicable, false to just disable them
		navigationAsDateFormat: false, // True if date formatting applied to prev/today/next links
		gotoCurrent: false, // True if today link goes back to current selection instead
		changeMonth: false, // True if month can be selected directly, false if only prev/next
		changeYear: false, // True if year can be selected directly, false if only prev/next
		yearRange: 'c-10:c+10', // Range of years to display in drop-down,
			// either relative to today's year (-nn:+nn), relative to currently displayed year
			// (c-nn:c+nn), absolute (nnnn:nnnn), or a combination of the above (nnnn:-n)
		showOtherMonths: false, // True to show dates in other months, false to leave blank
		selectOtherMonths: false, // True to allow selection of dates in other months, false for unselectable
		showWeek: false, // True to show week of the year, false to not show it
		calculateWeek: this.iso8601Week, // How to calculate the week of the year,
			// takes a Date and returns the number of the week for it
		shortYearCutoff: '+10', // Short year values < this are in the current century,
			// > this are in the previous century,
			// string value starting with '+' for current year + value
		minDate: null, // The earliest selectable date, or null for no limit
		maxDate: null, // The latest selectable date, or null for no limit
		duration: 'fast', // Duration of display/closure
		beforeShowDay: null, // Function that takes a date and returns an array with
			// [0] = true if selectable, false if not, [1] = custom CSS class name(s) or '',
			// [2] = cell title (optional), e.g. $.datepicker.noWeekends
		beforeShow: null, // Function that takes an input field and
			// returns a set of custom settings for the date picker
		onSelect: null, // Define a callback function when a date is selected
		onChangeMonthYear: null, // Define a callback function when the month or year is changed
		onClose: null, // Define a callback function when the datepicker is closed
		numberOfMonths: 1, // Number of months to show at a time
		showCurrentAtPos: 0, // The position in multipe months at which to show the current month (starting at 0)
		stepMonths: 1, // Number of months to step back/forward
		stepBigMonths: 12, // Number of months to step back/forward for the big links
		altField: '', // Selector for an alternate field to store selected dates into
		altFormat: '', // The date format to use for the alternate field
		constrainInput: true, // The input is constrained by the current date format
		showButtonPanel: false, // True to show button panel, false to not show it
		autoSize: false, // True to size the input for the date format, false to leave as is
		disabled: false // The initial disabled state
	};
	$.extend(this._defaults, this.regional['']);
	this.dpDiv = bindHover($('<div id="' + this._mainDivId + '" class="ui-datepicker ui-widget ui-widget-content ui-helper-clearfix ui-corner-all"></div>'));
}

$.extend(Datepicker.prototype, {
	/* Class name added to elements to indicate already configured with a date picker. */
	markerClassName: 'hasDatepicker',

	//Keep track of the maximum number of rows displayed (see #7043)
	maxRows: 4,

	/* Debug logging (if enabled). */
	log: function () {
		if (this.debug)
			console.log.apply('', arguments);
	},

	// TODO rename to "widget" when switching to widget factory
	_widgetDatepicker: function() {
		return this.dpDiv;
	},

	/* Override the default settings for all instances of the date picker.
	   @param  settings  object - the new settings to use as defaults (anonymous object)
	   @return the manager object */
	setDefaults: function(settings) {
		extendRemove(this._defaults, settings || {});
		return this;
	},

	/* Attach the date picker to a jQuery selection.
	   @param  target    element - the target input field or division or span
	   @param  settings  object - the new settings to use for this date picker instance (anonymous) */
	_attachDatepicker: function(target, settings) {
		// check for settings on the control itself - in namespace 'date:'
		var inlineSettings = null;
		for (var attrName in this._defaults) {
			var attrValue = target.getAttribute('date:' + attrName);
			if (attrValue) {
				inlineSettings = inlineSettings || {};
				try {
					inlineSettings[attrName] = eval(attrValue);
				} catch (err) {
					inlineSettings[attrName] = attrValue;
				}
			}
		}
		var nodeName = target.nodeName.toLowerCase();
		var inline = (nodeName == 'div' || nodeName == 'span');
		if (!target.id) {
			this.uuid += 1;
			target.id = 'dp' + this.uuid;
		}
		var inst = this._newInst($(target), inline);
		inst.settings = $.extend({}, settings || {}, inlineSettings || {});
		if (nodeName == 'input') {
			this._connectDatepicker(target, inst);
		} else if (inline) {
			this._inlineDatepicker(target, inst);
		}
	},

	/* Create a new instance object. */
	_newInst: function(target, inline) {
		var id = target[0].id.replace(/([^A-Za-z0-9_-])/g, '\\\\$1'); // escape jQuery meta chars
		return {id: id, input: target, // associated target
			selectedDay: 0, selectedMonth: 0, selectedYear: 0, // current selection
			drawMonth: 0, drawYear: 0, // month being drawn
			inline: inline, // is datepicker inline or not
			dpDiv: (!inline ? this.dpDiv : // presentation div
			bindHover($('<div class="' + this._inlineClass + ' ui-datepicker ui-widget ui-widget-content ui-helper-clearfix ui-corner-all"></div>')))};
	},

	/* Attach the date picker to an input field. */
	_connectDatepicker: function(target, inst) {
		var input = $(target);
		inst.append = $([]);
		inst.trigger = $([]);
		if (input.hasClass(this.markerClassName))
			return;
		this._attachments(input, inst);
		input.addClass(this.markerClassName).keydown(this._doKeyDown).
			keypress(this._doKeyPress).keyup(this._doKeyUp).
			bind("setData.datepicker", function(event, key, value) {
				inst.settings[key] = value;
			}).bind("getData.datepicker", function(event, key) {
				return this._get(inst, key);
			});
		this._autoSize(inst);
		$.data(target, PROP_NAME, inst);
		//If disabled option is true, disable the datepicker once it has been attached to the input (see ticket #5665)
		if( inst.settings.disabled ) {
			this._disableDatepicker( target );
		}
	},

	/* Make attachments based on settings. */
	_attachments: function(input, inst) {
		var appendText = this._get(inst, 'appendText');
		var isRTL = this._get(inst, 'isRTL');
		if (inst.append)
			inst.append.remove();
		if (appendText) {
			inst.append = $('<span class="' + this._appendClass + '">' + appendText + '</span>');
			input[isRTL ? 'before' : 'after'](inst.append);
		}
		input.unbind('focus', this._showDatepicker);
		if (inst.trigger)
			inst.trigger.remove();
		var showOn = this._get(inst, 'showOn');
		if (showOn == 'focus' || showOn == 'both') // pop-up date picker when in the marked field
			input.focus(this._showDatepicker);
		if (showOn == 'button' || showOn == 'both') { // pop-up date picker when button clicked
			var buttonText = this._get(inst, 'buttonText');
			var buttonImage = this._get(inst, 'buttonImage');
			inst.trigger = $(this._get(inst, 'buttonImageOnly') ?
				$('<img/>').addClass(this._triggerClass).
					attr({ src: buttonImage, alt: buttonText, title: buttonText }) :
				$('<button type="button"></button>').addClass(this._triggerClass).
					html(buttonImage == '' ? buttonText : $('<img/>').attr(
					{ src:buttonImage, alt:buttonText, title:buttonText })));
			input[isRTL ? 'before' : 'after'](inst.trigger);
			inst.trigger.click(function() {
				if ($.datepicker._datepickerShowing && $.datepicker._lastInput == input[0])
					$.datepicker._hideDatepicker();
				else if ($.datepicker._datepickerShowing && $.datepicker._lastInput != input[0]) {
					$.datepicker._hideDatepicker();
					$.datepicker._showDatepicker(input[0]);
				} else
					$.datepicker._showDatepicker(input[0]);
				return false;
			});
		}
	},

	/* Apply the maximum length for the date format. */
	_autoSize: function(inst) {
		if (this._get(inst, 'autoSize') && !inst.inline) {
			var date = new Date(2009, 12 - 1, 20); // Ensure double digits
			var dateFormat = this._get(inst, 'dateFormat');
			if (dateFormat.match(/[DM]/)) {
				var findMax = function(names) {
					var max = 0;
					var maxI = 0;
					for (var i = 0; i < names.length; i++) {
						if (names[i].length > max) {
							max = names[i].length;
							maxI = i;
						}
					}
					return maxI;
				};
				date.setMonth(findMax(this._get(inst, (dateFormat.match(/MM/) ?
					'monthNames' : 'monthNamesShort'))));
				date.setDate(findMax(this._get(inst, (dateFormat.match(/DD/) ?
					'dayNames' : 'dayNamesShort'))) + 20 - date.getDay());
			}
			inst.input.attr('size', this._formatDate(inst, date).length);
		}
	},

	/* Attach an inline date picker to a div. */
	_inlineDatepicker: function(target, inst) {
		var divSpan = $(target);
		if (divSpan.hasClass(this.markerClassName))
			return;
		divSpan.addClass(this.markerClassName).append(inst.dpDiv).
			bind("setData.datepicker", function(event, key, value){
				inst.settings[key] = value;
			}).bind("getData.datepicker", function(event, key){
				return this._get(inst, key);
			});
		$.data(target, PROP_NAME, inst);
		this._setDate(inst, this._getDefaultDate(inst), true);
		this._updateDatepicker(inst);
		this._updateAlternate(inst);
		//If disabled option is true, disable the datepicker before showing it (see ticket #5665)
		if( inst.settings.disabled ) {
			this._disableDatepicker( target );
		}
		// Set display:block in place of inst.dpDiv.show() which won't work on disconnected elements
		// http://bugs.jqueryui.com/ticket/7552 - A Datepicker created on a detached div has zero height
		inst.dpDiv.css( "display", "block" );
	},

	/* Pop-up the date picker in a "dialog" box.
	   @param  input     element - ignored
	   @param  date      string or Date - the initial date to display
	   @param  onSelect  function - the function to call when a date is selected
	   @param  settings  object - update the dialog date picker instance's settings (anonymous object)
	   @param  pos       int[2] - coordinates for the dialog's position within the screen or
	                     event - with x/y coordinates or
	                     leave empty for default (screen centre)
	   @return the manager object */
	_dialogDatepicker: function(input, date, onSelect, settings, pos) {
		var inst = this._dialogInst; // internal instance
		if (!inst) {
			this.uuid += 1;
			var id = 'dp' + this.uuid;
			this._dialogInput = $('<input type="text" id="' + id +
				'" style="position: absolute; top: -100px; width: 0px;"/>');
			this._dialogInput.keydown(this._doKeyDown);
			$('body').append(this._dialogInput);
			inst = this._dialogInst = this._newInst(this._dialogInput, false);
			inst.settings = {};
			$.data(this._dialogInput[0], PROP_NAME, inst);
		}
		extendRemove(inst.settings, settings || {});
		date = (date && date.constructor == Date ? this._formatDate(inst, date) : date);
		this._dialogInput.val(date);

		this._pos = (pos ? (pos.length ? pos : [pos.pageX, pos.pageY]) : null);
		if (!this._pos) {
			var browserWidth = document.documentElement.clientWidth;
			var browserHeight = document.documentElement.clientHeight;
			var scrollX = document.documentElement.scrollLeft || document.body.scrollLeft;
			var scrollY = document.documentElement.scrollTop || document.body.scrollTop;
			this._pos = // should use actual width/height below
				[(browserWidth / 2) - 100 + scrollX, (browserHeight / 2) - 150 + scrollY];
		}

		// move input on screen for focus, but hidden behind dialog
		this._dialogInput.css('left', (this._pos[0] + 20) + 'px').css('top', this._pos[1] + 'px');
		inst.settings.onSelect = onSelect;
		this._inDialog = true;
		this.dpDiv.addClass(this._dialogClass);
		this._showDatepicker(this._dialogInput[0]);
		if ($.blockUI)
			$.blockUI(this.dpDiv);
		$.data(this._dialogInput[0], PROP_NAME, inst);
		return this;
	},

	/* Detach a datepicker from its control.
	   @param  target    element - the target input field or division or span */
	_destroyDatepicker: function(target) {
		var $target = $(target);
		var inst = $.data(target, PROP_NAME);
		if (!$target.hasClass(this.markerClassName)) {
			return;
		}
		var nodeName = target.nodeName.toLowerCase();
		$.removeData(target, PROP_NAME);
		if (nodeName == 'input') {
			inst.append.remove();
			inst.trigger.remove();
			$target.removeClass(this.markerClassName).
				unbind('focus', this._showDatepicker).
				unbind('keydown', this._doKeyDown).
				unbind('keypress', this._doKeyPress).
				unbind('keyup', this._doKeyUp);
		} else if (nodeName == 'div' || nodeName == 'span')
			$target.removeClass(this.markerClassName).empty();
	},

	/* Enable the date picker to a jQuery selection.
	   @param  target    element - the target input field or division or span */
	_enableDatepicker: function(target) {
		var $target = $(target);
		var inst = $.data(target, PROP_NAME);
		if (!$target.hasClass(this.markerClassName)) {
			return;
		}
		var nodeName = target.nodeName.toLowerCase();
		if (nodeName == 'input') {
			target.disabled = false;
			inst.trigger.filter('button').
				each(function() { this.disabled = false; }).end().
				filter('img').css({opacity: '1.0', cursor: ''});
		}
		else if (nodeName == 'div' || nodeName == 'span') {
			var inline = $target.children('.' + this._inlineClass);
			inline.children().removeClass('ui-state-disabled');
			inline.find("select.ui-datepicker-month, select.ui-datepicker-year").
				prop("disabled", false);
		}
		this._disabledInputs = $.map(this._disabledInputs,
			function(value) { return (value == target ? null : value); }); // delete entry
	},

	/* Disable the date picker to a jQuery selection.
	   @param  target    element - the target input field or division or span */
	_disableDatepicker: function(target) {
		var $target = $(target);
		var inst = $.data(target, PROP_NAME);
		if (!$target.hasClass(this.markerClassName)) {
			return;
		}
		var nodeName = target.nodeName.toLowerCase();
		if (nodeName == 'input') {
			target.disabled = true;
			inst.trigger.filter('button').
				each(function() { this.disabled = true; }).end().
				filter('img').css({opacity: '0.5', cursor: 'default'});
		}
		else if (nodeName == 'div' || nodeName == 'span') {
			var inline = $target.children('.' + this._inlineClass);
			inline.children().addClass('ui-state-disabled');
			inline.find("select.ui-datepicker-month, select.ui-datepicker-year").
				prop("disabled", true);
		}
		this._disabledInputs = $.map(this._disabledInputs,
			function(value) { return (value == target ? null : value); }); // delete entry
		this._disabledInputs[this._disabledInputs.length] = target;
	},

	/* Is the first field in a jQuery collection disabled as a datepicker?
	   @param  target    element - the target input field or division or span
	   @return boolean - true if disabled, false if enabled */
	_isDisabledDatepicker: function(target) {
		if (!target) {
			return false;
		}
		for (var i = 0; i < this._disabledInputs.length; i++) {
			if (this._disabledInputs[i] == target)
				return true;
		}
		return false;
	},

	/* Retrieve the instance data for the target control.
	   @param  target  element - the target input field or division or span
	   @return  object - the associated instance data
	   @throws  error if a jQuery problem getting data */
	_getInst: function(target) {
		try {
			return $.data(target, PROP_NAME);
		}
		catch (err) {
			throw 'Missing instance data for this datepicker';
		}
	},

	/* Update or retrieve the settings for a date picker attached to an input field or division.
	   @param  target  element - the target input field or division or span
	   @param  name    object - the new settings to update or
	                   string - the name of the setting to change or retrieve,
	                   when retrieving also 'all' for all instance settings or
	                   'defaults' for all global defaults
	   @param  value   any - the new value for the setting
	                   (omit if above is an object or to retrieve a value) */
	_optionDatepicker: function(target, name, value) {
		var inst = this._getInst(target);
		if (arguments.length == 2 && typeof name == 'string') {
			return (name == 'defaults' ? $.extend({}, $.datepicker._defaults) :
				(inst ? (name == 'all' ? $.extend({}, inst.settings) :
				this._get(inst, name)) : null));
		}
		var settings = name || {};
		if (typeof name == 'string') {
			settings = {};
			settings[name] = value;
		}
		if (inst) {
			if (this._curInst == inst) {
				this._hideDatepicker();
			}
			var date = this._getDateDatepicker(target, true);
			var minDate = this._getMinMaxDate(inst, 'min');
			var maxDate = this._getMinMaxDate(inst, 'max');
			extendRemove(inst.settings, settings);
			// reformat the old minDate/maxDate values if dateFormat changes and a new minDate/maxDate isn't provided
			if (minDate !== null && settings['dateFormat'] !== undefined && settings['minDate'] === undefined)
				inst.settings.minDate = this._formatDate(inst, minDate);
			if (maxDate !== null && settings['dateFormat'] !== undefined && settings['maxDate'] === undefined)
				inst.settings.maxDate = this._formatDate(inst, maxDate);
			this._attachments($(target), inst);
			this._autoSize(inst);
			this._setDate(inst, date);
			this._updateAlternate(inst);
			this._updateDatepicker(inst);
		}
	},

	// change method deprecated
	_changeDatepicker: function(target, name, value) {
		this._optionDatepicker(target, name, value);
	},

	/* Redraw the date picker attached to an input field or division.
	   @param  target  element - the target input field or division or span */
	_refreshDatepicker: function(target) {
		var inst = this._getInst(target);
		if (inst) {
			this._updateDatepicker(inst);
		}
	},

	/* Set the dates for a jQuery selection.
	   @param  target   element - the target input field or division or span
	   @param  date     Date - the new date */
	_setDateDatepicker: function(target, date) {
		var inst = this._getInst(target);
		if (inst) {
			this._setDate(inst, date);
			this._updateDatepicker(inst);
			this._updateAlternate(inst);
		}
	},

	/* Get the date(s) for the first entry in a jQuery selection.
	   @param  target     element - the target input field or division or span
	   @param  noDefault  boolean - true if no default date is to be used
	   @return Date - the current date */
	_getDateDatepicker: function(target, noDefault) {
		var inst = this._getInst(target);
		if (inst && !inst.inline)
			this._setDateFromField(inst, noDefault);
		return (inst ? this._getDate(inst) : null);
	},

	/* Handle keystrokes. */
	_doKeyDown: function(event) {
		var inst = $.datepicker._getInst(event.target);
		var handled = true;
		var isRTL = inst.dpDiv.is('.ui-datepicker-rtl');
		inst._keyEvent = true;
		if ($.datepicker._datepickerShowing)
			switch (event.keyCode) {
				case 9: $.datepicker._hideDatepicker();
						handled = false;
						break; // hide on tab out
				case 13: var sel = $('td.' + $.datepicker._dayOverClass + ':not(.' +
									$.datepicker._currentClass + ')', inst.dpDiv);
						if (sel[0])
							$.datepicker._selectDay(event.target, inst.selectedMonth, inst.selectedYear, sel[0]);
							var onSelect = $.datepicker._get(inst, 'onSelect');
							if (onSelect) {
								var dateStr = $.datepicker._formatDate(inst);

								// trigger custom callback
								onSelect.apply((inst.input ? inst.input[0] : null), [dateStr, inst]);
							}
						else
							$.datepicker._hideDatepicker();
						return false; // don't submit the form
						break; // select the value on enter
				case 27: $.datepicker._hideDatepicker();
						break; // hide on escape
				case 33: $.datepicker._adjustDate(event.target, (event.ctrlKey ?
							-$.datepicker._get(inst, 'stepBigMonths') :
							-$.datepicker._get(inst, 'stepMonths')), 'M');
						break; // previous month/year on page up/+ ctrl
				case 34: $.datepicker._adjustDate(event.target, (event.ctrlKey ?
							+$.datepicker._get(inst, 'stepBigMonths') :
							+$.datepicker._get(inst, 'stepMonths')), 'M');
						break; // next month/year on page down/+ ctrl
				case 35: if (event.ctrlKey || event.metaKey) $.datepicker._clearDate(event.target);
						handled = event.ctrlKey || event.metaKey;
						break; // clear on ctrl or command +end
				case 36: if (event.ctrlKey || event.metaKey) $.datepicker._gotoToday(event.target);
						handled = event.ctrlKey || event.metaKey;
						break; // current on ctrl or command +home
				case 37: if (event.ctrlKey || event.metaKey) $.datepicker._adjustDate(event.target, (isRTL ? +1 : -1), 'D');
						handled = event.ctrlKey || event.metaKey;
						// -1 day on ctrl or command +left
						if (event.originalEvent.altKey) $.datepicker._adjustDate(event.target, (event.ctrlKey ?
									-$.datepicker._get(inst, 'stepBigMonths') :
									-$.datepicker._get(inst, 'stepMonths')), 'M');
						// next month/year on alt +left on Mac
						break;
				case 38: if (event.ctrlKey || event.metaKey) $.datepicker._adjustDate(event.target, -7, 'D');
						handled = event.ctrlKey || event.metaKey;
						break; // -1 week on ctrl or command +up
				case 39: if (event.ctrlKey || event.metaKey) $.datepicker._adjustDate(event.target, (isRTL ? -1 : +1), 'D');
						handled = event.ctrlKey || event.metaKey;
						// +1 day on ctrl or command +right
						if (event.originalEvent.altKey) $.datepicker._adjustDate(event.target, (event.ctrlKey ?
									+$.datepicker._get(inst, 'stepBigMonths') :
									+$.datepicker._get(inst, 'stepMonths')), 'M');
						// next month/year on alt +right
						break;
				case 40: if (event.ctrlKey || event.metaKey) $.datepicker._adjustDate(event.target, +7, 'D');
						handled = event.ctrlKey || event.metaKey;
						break; // +1 week on ctrl or command +down
				default: handled = false;
			}
		else if (event.keyCode == 36 && event.ctrlKey) // display the date picker on ctrl+home
			$.datepicker._showDatepicker(this);
		else {
			handled = false;
		}
		if (handled) {
			event.preventDefault();
			event.stopPropagation();
		}
	},

	/* Filter entered characters - based on date format. */
	_doKeyPress: function(event) {
		var inst = $.datepicker._getInst(event.target);
		if ($.datepicker._get(inst, 'constrainInput')) {
			var chars = $.datepicker._possibleChars($.datepicker._get(inst, 'dateFormat'));
			var chr = String.fromCharCode(event.charCode == undefined ? event.keyCode : event.charCode);
			return event.ctrlKey || event.metaKey || (chr < ' ' || !chars || chars.indexOf(chr) > -1);
		}
	},

	/* Synchronise manual entry and field/alternate field. */
	_doKeyUp: function(event) {
		var inst = $.datepicker._getInst(event.target);
		if (inst.input.val() != inst.lastVal) {
			try {
				var date = $.datepicker.parseDate($.datepicker._get(inst, 'dateFormat'),
					(inst.input ? inst.input.val() : null),
					$.datepicker._getFormatConfig(inst));
				if (date) { // only if valid
					$.datepicker._setDateFromField(inst);
					$.datepicker._updateAlternate(inst);
					$.datepicker._updateDatepicker(inst);
				}
			}
			catch (err) {
				$.datepicker.log(err);
			}
		}
		return true;
	},

	/* Pop-up the date picker for a given input field.
	   If false returned from beforeShow event handler do not show.
	   @param  input  element - the input field attached to the date picker or
	                  event - if triggered by focus */
	_showDatepicker: function(input) {
		input = input.target || input;
		if (input.nodeName.toLowerCase() != 'input') // find from button/image trigger
			input = $('input', input.parentNode)[0];
		if ($.datepicker._isDisabledDatepicker(input) || $.datepicker._lastInput == input) // already here
			return;
		var inst = $.datepicker._getInst(input);
		if ($.datepicker._curInst && $.datepicker._curInst != inst) {
			$.datepicker._curInst.dpDiv.stop(true, true);
			if ( inst && $.datepicker._datepickerShowing ) {
				$.datepicker._hideDatepicker( $.datepicker._curInst.input[0] );
			}
		}
		var beforeShow = $.datepicker._get(inst, 'beforeShow');
		var beforeShowSettings = beforeShow ? beforeShow.apply(input, [input, inst]) : {};
		if(beforeShowSettings === false){
			//false
			return;
		}
		extendRemove(inst.settings, beforeShowSettings);
		inst.lastVal = null;
		$.datepicker._lastInput = input;
		$.datepicker._setDateFromField(inst);
		if ($.datepicker._inDialog) // hide cursor
			input.value = '';
		if (!$.datepicker._pos) { // position below input
			$.datepicker._pos = $.datepicker._findPos(input);
			$.datepicker._pos[1] += input.offsetHeight; // add the height
		}
		var isFixed = false;
		$(input).parents().each(function() {
			isFixed |= $(this).css('position') == 'fixed';
			return !isFixed;
		});
		var offset = {left: $.datepicker._pos[0], top: $.datepicker._pos[1]};
		$.datepicker._pos = null;
		//to avoid flashes on Firefox
		inst.dpDiv.empty();
		// determine sizing offscreen
		inst.dpDiv.css({position: 'absolute', display: 'block', top: '-1000px'});
		$.datepicker._updateDatepicker(inst);
		// fix width for dynamic number of date pickers
		// and adjust position before showing
		offset = $.datepicker._checkOffset(inst, offset, isFixed);
		inst.dpDiv.css({position: ($.datepicker._inDialog && $.blockUI ?
			'static' : (isFixed ? 'fixed' : 'absolute')), display: 'none',
			left: offset.left + 'px', top: offset.top + 'px'});
		if (!inst.inline) {
			var showAnim = $.datepicker._get(inst, 'showAnim');
			var duration = $.datepicker._get(inst, 'duration');
			var postProcess = function() {
				var cover = inst.dpDiv.find('iframe.ui-datepicker-cover'); // IE6- only
				if( !! cover.length ){
					var borders = $.datepicker._getBorders(inst.dpDiv);
					cover.css({left: -borders[0], top: -borders[1],
						width: inst.dpDiv.outerWidth(), height: inst.dpDiv.outerHeight()});
				}
			};
			inst.dpDiv.zIndex($(input).zIndex()+1);
			$.datepicker._datepickerShowing = true;

			// DEPRECATED: after BC for 1.8.x $.effects[ showAnim ] is not needed
			if ( $.effects && ( $.effects.effect[ showAnim ] || $.effects[ showAnim ] ) )
				inst.dpDiv.show(showAnim, $.datepicker._get(inst, 'showOptions'), duration, postProcess);
			else
				inst.dpDiv[showAnim || 'show']((showAnim ? duration : null), postProcess);
			if (!showAnim || !duration)
				postProcess();
			if (inst.input.is(':visible') && !inst.input.is(':disabled'))
				inst.input.focus();
			$.datepicker._curInst = inst;
		}
	},

	/* Generate the date picker content. */
	_updateDatepicker: function(inst) {
		this.maxRows = 4; //Reset the max number of rows being displayed (see #7043)
		var borders = $.datepicker._getBorders(inst.dpDiv);
		instActive = inst; // for delegate hover events
		inst.dpDiv.empty().append(this._generateHTML(inst));
		this._attachHandlers(inst);
		var cover = inst.dpDiv.find('iframe.ui-datepicker-cover'); // IE6- only
		if( !!cover.length ){ //avoid call to outerXXXX() when not in IE6
			cover.css({left: -borders[0], top: -borders[1], width: inst.dpDiv.outerWidth(), height: inst.dpDiv.outerHeight()})
		}
		inst.dpDiv.find('.' + this._dayOverClass + ' a').mouseover();
		var numMonths = this._getNumberOfMonths(inst);
		var cols = numMonths[1];
		var width = 17;
		inst.dpDiv.removeClass('ui-datepicker-multi-2 ui-datepicker-multi-3 ui-datepicker-multi-4').width('');
		if (cols > 1)
			inst.dpDiv.addClass('ui-datepicker-multi-' + cols).css('width', (width * cols) + 'em');
		inst.dpDiv[(numMonths[0] != 1 || numMonths[1] != 1 ? 'add' : 'remove') +
			'Class']('ui-datepicker-multi');
		inst.dpDiv[(this._get(inst, 'isRTL') ? 'add' : 'remove') +
			'Class']('ui-datepicker-rtl');
		if (inst == $.datepicker._curInst && $.datepicker._datepickerShowing && inst.input &&
				// #6694 - don't focus the input if it's already focused
				// this breaks the change event in IE
				inst.input.is(':visible') && !inst.input.is(':disabled') && inst.input[0] != document.activeElement)
			inst.input.focus();
		// deffered render of the years select (to avoid flashes on Firefox)
		if( inst.yearshtml ){
			var origyearshtml = inst.yearshtml;
			setTimeout(function(){
				//assure that inst.yearshtml didn't change.
				if( origyearshtml === inst.yearshtml && inst.yearshtml ){
					inst.dpDiv.find('select.ui-datepicker-year:first').replaceWith(inst.yearshtml);
				}
				origyearshtml = inst.yearshtml = null;
			}, 0);
		}
	},

	/* Retrieve the size of left and top borders for an element.
	   @param  elem  (jQuery object) the element of interest
	   @return  (number[2]) the left and top borders */
	_getBorders: function(elem) {
		var convert = function(value) {
			return {thin: 1, medium: 2, thick: 3}[value] || value;
		};
		return [parseFloat(convert(elem.css('border-left-width'))),
			parseFloat(convert(elem.css('border-top-width')))];
	},

	/* Check positioning to remain on screen. */
	_checkOffset: function(inst, offset, isFixed) {
		var dpWidth = inst.dpDiv.outerWidth();
		var dpHeight = inst.dpDiv.outerHeight();
		var inputWidth = inst.input ? inst.input.outerWidth() : 0;
		var inputHeight = inst.input ? inst.input.outerHeight() : 0;
		var viewWidth = document.documentElement.clientWidth + (isFixed ? 0 : $(document).scrollLeft());
		var viewHeight = document.documentElement.clientHeight + (isFixed ? 0 : $(document).scrollTop());

		offset.left -= (this._get(inst, 'isRTL') ? (dpWidth - inputWidth) : 0);
		offset.left -= (isFixed && offset.left == inst.input.offset().left) ? $(document).scrollLeft() : 0;
		offset.top -= (isFixed && offset.top == (inst.input.offset().top + inputHeight)) ? $(document).scrollTop() : 0;

		// now check if datepicker is showing outside window viewport - move to a better place if so.
		offset.left -= Math.min(offset.left, (offset.left + dpWidth > viewWidth && viewWidth > dpWidth) ?
			Math.abs(offset.left + dpWidth - viewWidth) : 0);
		offset.top -= Math.min(offset.top, (offset.top + dpHeight > viewHeight && viewHeight > dpHeight) ?
			Math.abs(dpHeight + inputHeight) : 0);

		return offset;
	},

	/* Find an object's position on the screen. */
	_findPos: function(obj) {
		var inst = this._getInst(obj);
		var isRTL = this._get(inst, 'isRTL');
		while (obj && (obj.type == 'hidden' || obj.nodeType != 1 || $.expr.filters.hidden(obj))) {
			obj = obj[isRTL ? 'previousSibling' : 'nextSibling'];
		}
		var position = $(obj).offset();
		return [position.left, position.top];
	},

	/* Hide the date picker from view.
	   @param  input  element - the input field attached to the date picker */
	_hideDatepicker: function(input) {
		var inst = this._curInst;
		if (!inst || (input && inst != $.data(input, PROP_NAME)))
			return;
		if (this._datepickerShowing) {
			var showAnim = this._get(inst, 'showAnim');
			var duration = this._get(inst, 'duration');
			var postProcess = function() {
				$.datepicker._tidyDialog(inst);
			};

			// DEPRECATED: after BC for 1.8.x $.effects[ showAnim ] is not needed
			if ( $.effects && ( $.effects.effect[ showAnim ] || $.effects[ showAnim ] ) )
				inst.dpDiv.hide(showAnim, $.datepicker._get(inst, 'showOptions'), duration, postProcess);
			else
				inst.dpDiv[(showAnim == 'slideDown' ? 'slideUp' :
					(showAnim == 'fadeIn' ? 'fadeOut' : 'hide'))]((showAnim ? duration : null), postProcess);
			if (!showAnim)
				postProcess();
			this._datepickerShowing = false;
			var onClose = this._get(inst, 'onClose');
			if (onClose)
				onClose.apply((inst.input ? inst.input[0] : null),
					[(inst.input ? inst.input.val() : ''), inst]);
			this._lastInput = null;
			if (this._inDialog) {
				this._dialogInput.css({ position: 'absolute', left: '0', top: '-100px' });
				if ($.blockUI) {
					$.unblockUI();
					$('body').append(this.dpDiv);
				}
			}
			this._inDialog = false;
		}
	},

	/* Tidy up after a dialog display. */
	_tidyDialog: function(inst) {
		inst.dpDiv.removeClass(this._dialogClass).unbind('.ui-datepicker-calendar');
	},

	/* Close date picker if clicked elsewhere. */
	_checkExternalClick: function(event) {
		if (!$.datepicker._curInst)
			return;

		var $target = $(event.target),
			inst = $.datepicker._getInst($target[0]);

		if ( ( ( $target[0].id != $.datepicker._mainDivId &&
				$target.parents('#' + $.datepicker._mainDivId).length == 0 &&
				!$target.hasClass($.datepicker.markerClassName) &&
				!$target.closest("." + $.datepicker._triggerClass).length &&
				$.datepicker._datepickerShowing && !($.datepicker._inDialog && $.blockUI) ) ) ||
			( $target.hasClass($.datepicker.markerClassName) && $.datepicker._curInst != inst ) )
			$.datepicker._hideDatepicker();
	},

	/* Adjust one of the date sub-fields. */
	_adjustDate: function(id, offset, period) {
		var target = $(id);
		var inst = this._getInst(target[0]);
		if (this._isDisabledDatepicker(target[0])) {
			return;
		}
		this._adjustInstDate(inst, offset +
			(period == 'M' ? this._get(inst, 'showCurrentAtPos') : 0), // undo positioning
			period);
		this._updateDatepicker(inst);
	},

	/* Action for current link. */
	_gotoToday: function(id) {
		var target = $(id);
		var inst = this._getInst(target[0]);
		if (this._get(inst, 'gotoCurrent') && inst.currentDay) {
			inst.selectedDay = inst.currentDay;
			inst.drawMonth = inst.selectedMonth = inst.currentMonth;
			inst.drawYear = inst.selectedYear = inst.currentYear;
		}
		else {
			var date = new Date();
			inst.selectedDay = date.getDate();
			inst.drawMonth = inst.selectedMonth = date.getMonth();
			inst.drawYear = inst.selectedYear = date.getFullYear();
		}
		this._notifyChange(inst);
		this._adjustDate(target);
	},

	/* Action for selecting a new month/year. */
	_selectMonthYear: function(id, select, period) {
		var target = $(id);
		var inst = this._getInst(target[0]);
		inst['selected' + (period == 'M' ? 'Month' : 'Year')] =
		inst['draw' + (period == 'M' ? 'Month' : 'Year')] =
			parseInt(select.options[select.selectedIndex].value,10);
		this._notifyChange(inst);
		this._adjustDate(target);
	},

	/* Action for selecting a day. */
	_selectDay: function(id, month, year, td) {
		var target = $(id);
		if ($(td).hasClass(this._unselectableClass) || this._isDisabledDatepicker(target[0])) {
			return;
		}
		var inst = this._getInst(target[0]);
		inst.selectedDay = inst.currentDay = $('a', td).html();
		inst.selectedMonth = inst.currentMonth = month;
		inst.selectedYear = inst.currentYear = year;
		this._selectDate(id, this._formatDate(inst,
			inst.currentDay, inst.currentMonth, inst.currentYear));
	},

	/* Erase the input field and hide the date picker. */
	_clearDate: function(id) {
		var target = $(id);
		var inst = this._getInst(target[0]);
		this._selectDate(target, '');
	},

	/* Update the input field with the selected date. */
	_selectDate: function(id, dateStr) {
		var target = $(id);
		var inst = this._getInst(target[0]);
		dateStr = (dateStr != null ? dateStr : this._formatDate(inst));
		if (inst.input)
			inst.input.val(dateStr);
		this._updateAlternate(inst);
		var onSelect = this._get(inst, 'onSelect');
		if (onSelect)
			onSelect.apply((inst.input ? inst.input[0] : null), [dateStr, inst]);  // trigger custom callback
		else if (inst.input)
			inst.input.trigger('change'); // fire the change event
		if (inst.inline)
			this._updateDatepicker(inst);
		else {
			this._hideDatepicker();
			this._lastInput = inst.input[0];
			if (typeof(inst.input[0]) != 'object')
				inst.input.focus(); // restore focus
			this._lastInput = null;
		}
	},

	/* Update any alternate field to synchronise with the main field. */
	_updateAlternate: function(inst) {
		var altField = this._get(inst, 'altField');
		if (altField) { // update alternate field too
			var altFormat = this._get(inst, 'altFormat') || this._get(inst, 'dateFormat');
			var date = this._getDate(inst);
			var dateStr = this.formatDate(altFormat, date, this._getFormatConfig(inst));
			$(altField).each(function() { $(this).val(dateStr); });
		}
	},

	/* Set as beforeShowDay function to prevent selection of weekends.
	   @param  date  Date - the date to customise
	   @return [boolean, string] - is this date selectable?, what is its CSS class? */
	noWeekends: function(date) {
		var day = date.getDay();
		return [(day > 0 && day < 6), ''];
	},

	/* Set as calculateWeek to determine the week of the year based on the ISO 8601 definition.
	   @param  date  Date - the date to get the week for
	   @return  number - the number of the week within the year that contains this date */
	iso8601Week: function(date) {
		var checkDate = new Date(date.getTime());
		// Find Thursday of this week starting on Monday
		checkDate.setDate(checkDate.getDate() + 4 - (checkDate.getDay() || 7));
		var time = checkDate.getTime();
		checkDate.setMonth(0); // Compare with Jan 1
		checkDate.setDate(1);
		return Math.floor(Math.round((time - checkDate) / 86400000) / 7) + 1;
	},

	/* Parse a string value into a date object.
	   See formatDate below for the possible formats.

	   @param  format    string - the expected format of the date
	   @param  value     string - the date in the above format
	   @param  settings  Object - attributes include:
	                     shortYearCutoff  number - the cutoff year for determining the century (optional)
	                     dayNamesShort    string[7] - abbreviated names of the days from Sunday (optional)
	                     dayNames         string[7] - names of the days from Sunday (optional)
	                     monthNamesShort  string[12] - abbreviated names of the months (optional)
	                     monthNames       string[12] - names of the months (optional)
	   @return  Date - the extracted date value or null if value is blank */
	parseDate: function (format, value, settings) {
		if (format == null || value == null)
			throw 'Invalid arguments';
		value = (typeof value == 'object' ? value.toString() : value + '');
		if (value == '')
			return null;
		var shortYearCutoff = (settings ? settings.shortYearCutoff : null) || this._defaults.shortYearCutoff;
		shortYearCutoff = (typeof shortYearCutoff != 'string' ? shortYearCutoff :
				new Date().getFullYear() % 100 + parseInt(shortYearCutoff, 10));
		var dayNamesShort = (settings ? settings.dayNamesShort : null) || this._defaults.dayNamesShort;
		var dayNames = (settings ? settings.dayNames : null) || this._defaults.dayNames;
		var monthNamesShort = (settings ? settings.monthNamesShort : null) || this._defaults.monthNamesShort;
		var monthNames = (settings ? settings.monthNames : null) || this._defaults.monthNames;
		var year = -1;
		var month = -1;
		var day = -1;
		var doy = -1;
		var literal = false;
		// Check whether a format character is doubled
		var lookAhead = function(match) {
			var matches = (iFormat + 1 < format.length && format.charAt(iFormat + 1) == match);
			if (matches)
				iFormat++;
			return matches;
		};
		// Extract a number from the string value
		var getNumber = function(match) {
			var isDoubled = lookAhead(match);
			var size = (match == '@' ? 14 : (match == '!' ? 20 :
				(match == 'y' && isDoubled ? 4 : (match == 'o' ? 3 : 2))));
			var digits = new RegExp('^\\d{1,' + size + '}');
			var num = value.substring(iValue).match(digits);
			if (!num)
				throw 'Missing number at position ' + iValue;
			iValue += num[0].length;
			return parseInt(num[0], 10);
		};
		// Extract a name from the string value and convert to an index
		var getName = function(match, shortNames, longNames) {
			var names = $.map(lookAhead(match) ? longNames : shortNames, function (v, k) {
				return [ [k, v] ];
			}).sort(function (a, b) {
				return -(a[1].length - b[1].length);
			});
			var index = -1;
			$.each(names, function (i, pair) {
				var name = pair[1];
				if (value.substr(iValue, name.length).toLowerCase() == name.toLowerCase()) {
					index = pair[0];
					iValue += name.length;
					return false;
				}
			});
			if (index != -1)
				return index + 1;
			else
				throw 'Unknown name at position ' + iValue;
		};
		// Confirm that a literal character matches the string value
		var checkLiteral = function() {
			if (value.charAt(iValue) != format.charAt(iFormat))
				throw 'Unexpected literal at position ' + iValue;
			iValue++;
		};
		var iValue = 0;
		for (var iFormat = 0; iFormat < format.length; iFormat++) {
			if (literal)
				if (format.charAt(iFormat) == "'" && !lookAhead("'"))
					literal = false;
				else
					checkLiteral();
			else
				switch (format.charAt(iFormat)) {
					case 'd':
						day = getNumber('d');
						break;
					case 'D':
						getName('D', dayNamesShort, dayNames);
						break;
					case 'o':
						doy = getNumber('o');
						break;
					case 'm':
						month = getNumber('m');
						break;
					case 'M':
						month = getName('M', monthNamesShort, monthNames);
						break;
					case 'y':
						year = getNumber('y');
						break;
					case '@':
						var date = new Date(getNumber('@'));
						year = date.getFullYear();
						month = date.getMonth() + 1;
						day = date.getDate();
						break;
					case '!':
						var date = new Date((getNumber('!') - this._ticksTo1970) / 10000);
						year = date.getFullYear();
						month = date.getMonth() + 1;
						day = date.getDate();
						break;
					case "'":
						if (lookAhead("'"))
							checkLiteral();
						else
							literal = true;
						break;
					default:
						checkLiteral();
				}
		}
		if (iValue < value.length){
			var extra = value.substr(iValue);
			if (!/^\s+/.test(extra)) {
				throw "Extra/unparsed characters found in date: " + extra;
			}
		}
		if (year == -1)
			year = new Date().getFullYear();
		else if (year < 100)
			year += new Date().getFullYear() - new Date().getFullYear() % 100 +
				(year <= shortYearCutoff ? 0 : -100);
		if (doy > -1) {
			month = 1;
			day = doy;
			do {
				var dim = this._getDaysInMonth(year, month - 1);
				if (day <= dim)
					break;
				month++;
				day -= dim;
			} while (true);
		}
		var date = this._daylightSavingAdjust(new Date(year, month - 1, day));
		if (date.getFullYear() != year || date.getMonth() + 1 != month || date.getDate() != day)
			throw 'Invalid date'; // E.g. 31/02/00
		return date;
	},

	/* Standard date formats. */
	ATOM: 'yy-mm-dd', // RFC 3339 (ISO 8601)
	COOKIE: 'D, dd M yy',
	ISO_8601: 'yy-mm-dd',
	RFC_822: 'D, d M y',
	RFC_850: 'DD, dd-M-y',
	RFC_1036: 'D, d M y',
	RFC_1123: 'D, d M yy',
	RFC_2822: 'D, d M yy',
	RSS: 'D, d M y', // RFC 822
	TICKS: '!',
	TIMESTAMP: '@',
	W3C: 'yy-mm-dd', // ISO 8601

	_ticksTo1970: (((1970 - 1) * 365 + Math.floor(1970 / 4) - Math.floor(1970 / 100) +
		Math.floor(1970 / 400)) * 24 * 60 * 60 * 10000000),

	/* Format a date object into a string value.
	   The format can be combinations of the following:
	   d  - day of month (no leading zero)
	   dd - day of month (two digit)
	   o  - day of year (no leading zeros)
	   oo - day of year (three digit)
	   D  - day name short
	   DD - day name long
	   m  - month of year (no leading zero)
	   mm - month of year (two digit)
	   M  - month name short
	   MM - month name long
	   y  - year (two digit)
	   yy - year (four digit)
	   @ - Unix timestamp (ms since 01/01/1970)
	   ! - Windows ticks (100ns since 01/01/0001)
	   '...' - literal text
	   '' - single quote

	   @param  format    string - the desired format of the date
	   @param  date      Date - the date value to format
	   @param  settings  Object - attributes include:
	                     dayNamesShort    string[7] - abbreviated names of the days from Sunday (optional)
	                     dayNames         string[7] - names of the days from Sunday (optional)
	                     monthNamesShort  string[12] - abbreviated names of the months (optional)
	                     monthNames       string[12] - names of the months (optional)
	   @return  string - the date in the above format */
	formatDate: function (format, date, settings) {
		if (!date)
			return '';
		var dayNamesShort = (settings ? settings.dayNamesShort : null) || this._defaults.dayNamesShort;
		var dayNames = (settings ? settings.dayNames : null) || this._defaults.dayNames;
		var monthNamesShort = (settings ? settings.monthNamesShort : null) || this._defaults.monthNamesShort;
		var monthNames = (settings ? settings.monthNames : null) || this._defaults.monthNames;
		// Check whether a format character is doubled
		var lookAhead = function(match) {
			var matches = (iFormat + 1 < format.length && format.charAt(iFormat + 1) == match);
			if (matches)
				iFormat++;
			return matches;
		};
		// Format a number, with leading zero if necessary
		var formatNumber = function(match, value, len) {
			var num = '' + value;
			if (lookAhead(match))
				while (num.length < len)
					num = '0' + num;
			return num;
		};
		// Format a name, short or long as requested
		var formatName = function(match, value, shortNames, longNames) {
			return (lookAhead(match) ? longNames[value] : shortNames[value]);
		};
		var output = '';
		var literal = false;
		if (date)
			for (var iFormat = 0; iFormat < format.length; iFormat++) {
				if (literal)
					if (format.charAt(iFormat) == "'" && !lookAhead("'"))
						literal = false;
					else
						output += format.charAt(iFormat);
				else
					switch (format.charAt(iFormat)) {
						case 'd':
							output += formatNumber('d', date.getDate(), 2);
							break;
						case 'D':
							output += formatName('D', date.getDay(), dayNamesShort, dayNames);
							break;
						case 'o':
							output += formatNumber('o',
								Math.round((new Date(date.getFullYear(), date.getMonth(), date.getDate()).getTime() - new Date(date.getFullYear(), 0, 0).getTime()) / 86400000), 3);
							break;
						case 'm':
							output += formatNumber('m', date.getMonth() + 1, 2);
							break;
						case 'M':
							output += formatName('M', date.getMonth(), monthNamesShort, monthNames);
							break;
						case 'y':
							output += (lookAhead('y') ? date.getFullYear() :
								(date.getYear() % 100 < 10 ? '0' : '') + date.getYear() % 100);
							break;
						case '@':
							output += date.getTime();
							break;
						case '!':
							output += date.getTime() * 10000 + this._ticksTo1970;
							break;
						case "'":
							if (lookAhead("'"))
								output += "'";
							else
								literal = true;
							break;
						default:
							output += format.charAt(iFormat);
					}
			}
		return output;
	},

	/* Extract all possible characters from the date format. */
	_possibleChars: function (format) {
		var chars = '';
		var literal = false;
		// Check whether a format character is doubled
		var lookAhead = function(match) {
			var matches = (iFormat + 1 < format.length && format.charAt(iFormat + 1) == match);
			if (matches)
				iFormat++;
			return matches;
		};
		for (var iFormat = 0; iFormat < format.length; iFormat++)
			if (literal)
				if (format.charAt(iFormat) == "'" && !lookAhead("'"))
					literal = false;
				else
					chars += format.charAt(iFormat);
			else
				switch (format.charAt(iFormat)) {
					case 'd': case 'm': case 'y': case '@':
						chars += '0123456789';
						break;
					case 'D': case 'M':
						return null; // Accept anything
					case "'":
						if (lookAhead("'"))
							chars += "'";
						else
							literal = true;
						break;
					default:
						chars += format.charAt(iFormat);
				}
		return chars;
	},

	/* Get a setting value, defaulting if necessary. */
	_get: function(inst, name) {
		return inst.settings[name] !== undefined ?
			inst.settings[name] : this._defaults[name];
	},

	/* Parse existing date and initialise date picker. */
	_setDateFromField: function(inst, noDefault) {
		if (inst.input.val() == inst.lastVal) {
			return;
		}
		var dateFormat = this._get(inst, 'dateFormat');
		var dates = inst.lastVal = inst.input ? inst.input.val() : null;
		var date, defaultDate;
		date = defaultDate = this._getDefaultDate(inst);
		var settings = this._getFormatConfig(inst);
		try {
			date = this.parseDate(dateFormat, dates, settings) || defaultDate;
		} catch (event) {
			this.log(event);
			dates = (noDefault ? '' : dates);
		}
		inst.selectedDay = date.getDate();
		inst.drawMonth = inst.selectedMonth = date.getMonth();
		inst.drawYear = inst.selectedYear = date.getFullYear();
		inst.currentDay = (dates ? date.getDate() : 0);
		inst.currentMonth = (dates ? date.getMonth() : 0);
		inst.currentYear = (dates ? date.getFullYear() : 0);
		this._adjustInstDate(inst);
	},

	/* Retrieve the default date shown on opening. */
	_getDefaultDate: function(inst) {
		return this._restrictMinMax(inst,
			this._determineDate(inst, this._get(inst, 'defaultDate'), new Date()));
	},

	/* A date may be specified as an exact value or a relative one. */
	_determineDate: function(inst, date, defaultDate) {
		var offsetNumeric = function(offset) {
			var date = new Date();
			date.setDate(date.getDate() + offset);
			return date;
		};
		var offsetString = function(offset) {
			try {
				return $.datepicker.parseDate($.datepicker._get(inst, 'dateFormat'),
					offset, $.datepicker._getFormatConfig(inst));
			}
			catch (e) {
				// Ignore
			}
			var date = (offset.toLowerCase().match(/^c/) ?
				$.datepicker._getDate(inst) : null) || new Date();
			var year = date.getFullYear();
			var month = date.getMonth();
			var day = date.getDate();
			var pattern = /([+-]?[0-9]+)\s*(d|D|w|W|m|M|y|Y)?/g;
			var matches = pattern.exec(offset);
			while (matches) {
				switch (matches[2] || 'd') {
					case 'd' : case 'D' :
						day += parseInt(matches[1],10); break;
					case 'w' : case 'W' :
						day += parseInt(matches[1],10) * 7; break;
					case 'm' : case 'M' :
						month += parseInt(matches[1],10);
						day = Math.min(day, $.datepicker._getDaysInMonth(year, month));
						break;
					case 'y': case 'Y' :
						year += parseInt(matches[1],10);
						day = Math.min(day, $.datepicker._getDaysInMonth(year, month));
						break;
				}
				matches = pattern.exec(offset);
			}
			return new Date(year, month, day);
		};
		var newDate = (date == null || date === '' ? defaultDate : (typeof date == 'string' ? offsetString(date) :
			(typeof date == 'number' ? (isNaN(date) ? defaultDate : offsetNumeric(date)) : new Date(date.getTime()))));
		newDate = (newDate && newDate.toString() == 'Invalid Date' ? defaultDate : newDate);
		if (newDate) {
			newDate.setHours(0);
			newDate.setMinutes(0);
			newDate.setSeconds(0);
			newDate.setMilliseconds(0);
		}
		return this._daylightSavingAdjust(newDate);
	},

	/* Handle switch to/from daylight saving.
	   Hours may be non-zero on daylight saving cut-over:
	   > 12 when midnight changeover, but then cannot generate
	   midnight datetime, so jump to 1AM, otherwise reset.
	   @param  date  (Date) the date to check
	   @return  (Date) the corrected date */
	_daylightSavingAdjust: function(date) {
		if (!date) return null;
		date.setHours(date.getHours() > 12 ? date.getHours() + 2 : 0);
		return date;
	},

	/* Set the date(s) directly. */
	_setDate: function(inst, date, noChange) {
		var clear = !date;
		var origMonth = inst.selectedMonth;
		var origYear = inst.selectedYear;
		var newDate = this._restrictMinMax(inst, this._determineDate(inst, date, new Date()));
		inst.selectedDay = inst.currentDay = newDate.getDate();
		inst.drawMonth = inst.selectedMonth = inst.currentMonth = newDate.getMonth();
		inst.drawYear = inst.selectedYear = inst.currentYear = newDate.getFullYear();
		if ((origMonth != inst.selectedMonth || origYear != inst.selectedYear) && !noChange)
			this._notifyChange(inst);
		this._adjustInstDate(inst);
		if (inst.input) {
			inst.input.val(clear ? '' : this._formatDate(inst));
		}
	},

	/* Retrieve the date(s) directly. */
	_getDate: function(inst) {
		var startDate = (!inst.currentYear || (inst.input && inst.input.val() == '') ? null :
			this._daylightSavingAdjust(new Date(
			inst.currentYear, inst.currentMonth, inst.currentDay)));
			return startDate;
	},

	/* Attach the onxxx handlers.  These are declared statically so
	 * they work with static code transformers like Caja.
	 */
	_attachHandlers: function(inst) {
		var stepMonths = this._get(inst, 'stepMonths');
		var id = '#' + inst.id.replace( /\\\\/g, "\\" );
		inst.dpDiv.find('[data-handler]').map(function () {
			var handler = {
				prev: function () {
					window['DP_jQuery_' + dpuuid].datepicker._adjustDate(id, -stepMonths, 'M');
				},
				next: function () {
					window['DP_jQuery_' + dpuuid].datepicker._adjustDate(id, +stepMonths, 'M');
				},
				hide: function () {
					window['DP_jQuery_' + dpuuid].datepicker._hideDatepicker();
				},
				today: function () {
					window['DP_jQuery_' + dpuuid].datepicker._gotoToday(id);
				},
				selectDay: function () {
					window['DP_jQuery_' + dpuuid].datepicker._selectDay(id, +this.getAttribute('data-month'), +this.getAttribute('data-year'), this);
					return false;
				},
				selectMonth: function () {
					window['DP_jQuery_' + dpuuid].datepicker._selectMonthYear(id, this, 'M');
					return false;
				},
				selectYear: function () {
					window['DP_jQuery_' + dpuuid].datepicker._selectMonthYear(id, this, 'Y');
					return false;
				}
			};
			$(this).bind(this.getAttribute('data-event'), handler[this.getAttribute('data-handler')]);
		});
	},

	/* Generate the HTML for the current state of the date picker. */
	_generateHTML: function(inst) {
		var today = new Date();
		today = this._daylightSavingAdjust(
			new Date(today.getFullYear(), today.getMonth(), today.getDate())); // clear time
		var isRTL = this._get(inst, 'isRTL');
		var showButtonPanel = this._get(inst, 'showButtonPanel');
		var hideIfNoPrevNext = this._get(inst, 'hideIfNoPrevNext');
		var navigationAsDateFormat = this._get(inst, 'navigationAsDateFormat');
		var numMonths = this._getNumberOfMonths(inst);
		var showCurrentAtPos = this._get(inst, 'showCurrentAtPos');
		var stepMonths = this._get(inst, 'stepMonths');
		var isMultiMonth = (numMonths[0] != 1 || numMonths[1] != 1);
		var currentDate = this._daylightSavingAdjust((!inst.currentDay ? new Date(9999, 9, 9) :
			new Date(inst.currentYear, inst.currentMonth, inst.currentDay)));
		var minDate = this._getMinMaxDate(inst, 'min');
		var maxDate = this._getMinMaxDate(inst, 'max');
		var drawMonth = inst.drawMonth - showCurrentAtPos;
		var drawYear = inst.drawYear;
		if (drawMonth < 0) {
			drawMonth += 12;
			drawYear--;
		}
		if (maxDate) {
			var maxDraw = this._daylightSavingAdjust(new Date(maxDate.getFullYear(),
				maxDate.getMonth() - (numMonths[0] * numMonths[1]) + 1, maxDate.getDate()));
			maxDraw = (minDate && maxDraw < minDate ? minDate : maxDraw);
			while (this._daylightSavingAdjust(new Date(drawYear, drawMonth, 1)) > maxDraw) {
				drawMonth--;
				if (drawMonth < 0) {
					drawMonth = 11;
					drawYear--;
				}
			}
		}
		inst.drawMonth = drawMonth;
		inst.drawYear = drawYear;
		var prevText = this._get(inst, 'prevText');
		prevText = (!navigationAsDateFormat ? prevText : this.formatDate(prevText,
			this._daylightSavingAdjust(new Date(drawYear, drawMonth - stepMonths, 1)),
			this._getFormatConfig(inst)));
		var prev = (this._canAdjustMonth(inst, -1, drawYear, drawMonth) ?
			'<a class="ui-datepicker-prev ui-corner-all" data-handler="prev" data-event="click"' +
			' title="' + prevText + '"><span class="ui-icon ui-icon-circle-triangle-' + ( isRTL ? 'e' : 'w') + '">' + prevText + '</span></a>' :
			(hideIfNoPrevNext ? '' : '<a class="ui-datepicker-prev ui-corner-all ui-state-disabled" title="'+ prevText +'"><span class="ui-icon ui-icon-circle-triangle-' + ( isRTL ? 'e' : 'w') + '">' + prevText + '</span></a>'));
		var nextText = this._get(inst, 'nextText');
		nextText = (!navigationAsDateFormat ? nextText : this.formatDate(nextText,
			this._daylightSavingAdjust(new Date(drawYear, drawMonth + stepMonths, 1)),
			this._getFormatConfig(inst)));
		var next = (this._canAdjustMonth(inst, +1, drawYear, drawMonth) ?
			'<a class="ui-datepicker-next ui-corner-all" data-handler="next" data-event="click"' +
			' title="' + nextText + '"><span class="ui-icon ui-icon-circle-triangle-' + ( isRTL ? 'w' : 'e') + '">' + nextText + '</span></a>' :
			(hideIfNoPrevNext ? '' : '<a class="ui-datepicker-next ui-corner-all ui-state-disabled" title="'+ nextText + '"><span class="ui-icon ui-icon-circle-triangle-' + ( isRTL ? 'w' : 'e') + '">' + nextText + '</span></a>'));
		var currentText = this._get(inst, 'currentText');
		var gotoDate = (this._get(inst, 'gotoCurrent') && inst.currentDay ? currentDate : today);
		currentText = (!navigationAsDateFormat ? currentText :
			this.formatDate(currentText, gotoDate, this._getFormatConfig(inst)));
		var controls = (!inst.inline ? '<button type="button" class="ui-datepicker-close ui-state-default ui-priority-primary ui-corner-all" data-handler="hide" data-event="click">' +
			this._get(inst, 'closeText') + '</button>' : '');
		var buttonPanel = (showButtonPanel) ? '<div class="ui-datepicker-buttonpane ui-widget-content">' + (isRTL ? controls : '') +
			(this._isInRange(inst, gotoDate) ? '<button type="button" class="ui-datepicker-current ui-state-default ui-priority-secondary ui-corner-all" data-handler="today" data-event="click"' +
			'>' + currentText + '</button>' : '') + (isRTL ? '' : controls) + '</div>' : '';
		var firstDay = parseInt(this._get(inst, 'firstDay'),10);
		firstDay = (isNaN(firstDay) ? 0 : firstDay);
		var showWeek = this._get(inst, 'showWeek');
		var dayNames = this._get(inst, 'dayNames');
		var dayNamesShort = this._get(inst, 'dayNamesShort');
		var dayNamesMin = this._get(inst, 'dayNamesMin');
		var monthNames = this._get(inst, 'monthNames');
		var monthNamesShort = this._get(inst, 'monthNamesShort');
		var beforeShowDay = this._get(inst, 'beforeShowDay');
		var showOtherMonths = this._get(inst, 'showOtherMonths');
		var selectOtherMonths = this._get(inst, 'selectOtherMonths');
		var calculateWeek = this._get(inst, 'calculateWeek') || this.iso8601Week;
		var defaultDate = this._getDefaultDate(inst);
		var html = '';
		for (var row = 0; row < numMonths[0]; row++) {
			var group = '';
			this.maxRows = 4;
			for (var col = 0; col < numMonths[1]; col++) {
				var selectedDate = this._daylightSavingAdjust(new Date(drawYear, drawMonth, inst.selectedDay));
				var cornerClass = ' ui-corner-all';
				var calender = '';
				if (isMultiMonth) {
					calender += '<div class="ui-datepicker-group';
					if (numMonths[1] > 1)
						switch (col) {
							case 0: calender += ' ui-datepicker-group-first';
								cornerClass = ' ui-corner-' + (isRTL ? 'right' : 'left'); break;
							case numMonths[1]-1: calender += ' ui-datepicker-group-last';
								cornerClass = ' ui-corner-' + (isRTL ? 'left' : 'right'); break;
							default: calender += ' ui-datepicker-group-middle'; cornerClass = ''; break;
						}
					calender += '">';
				}
				calender += '<div class="ui-datepicker-header ui-widget-header ui-helper-clearfix' + cornerClass + '">' +
					(/all|left/.test(cornerClass) && row == 0 ? (isRTL ? next : prev) : '') +
					(/all|right/.test(cornerClass) && row == 0 ? (isRTL ? prev : next) : '') +
					this._generateMonthYearHeader(inst, drawMonth, drawYear, minDate, maxDate,
					row > 0 || col > 0, monthNames, monthNamesShort) + // draw month headers
					'</div><table class="ui-datepicker-calendar"><thead>' +
					'<tr>';
				var thead = (showWeek ? '<th class="ui-datepicker-week-col">' + this._get(inst, 'weekHeader') + '</th>' : '');
				for (var dow = 0; dow < 7; dow++) { // days of the week
					var day = (dow + firstDay) % 7;
					thead += '<th' + ((dow + firstDay + 6) % 7 >= 5 ? ' class="ui-datepicker-week-end"' : '') + '>' +
						'<span title="' + dayNames[day] + '">' + dayNamesMin[day] + '</span></th>';
				}
				calender += thead + '</tr></thead><tbody>';
				var daysInMonth = this._getDaysInMonth(drawYear, drawMonth);
				if (drawYear == inst.selectedYear && drawMonth == inst.selectedMonth)
					inst.selectedDay = Math.min(inst.selectedDay, daysInMonth);
				var leadDays = (this._getFirstDayOfMonth(drawYear, drawMonth) - firstDay + 7) % 7;
				var curRows = Math.ceil((leadDays + daysInMonth) / 7); // calculate the number of rows to generate
				var numRows = (isMultiMonth ? this.maxRows > curRows ? this.maxRows : curRows : curRows); //If multiple months, use the higher number of rows (see #7043)
				this.maxRows = numRows;
				var printDate = this._daylightSavingAdjust(new Date(drawYear, drawMonth, 1 - leadDays));
				for (var dRow = 0; dRow < numRows; dRow++) { // create date picker rows
					calender += '<tr>';
					var tbody = (!showWeek ? '' : '<td class="ui-datepicker-week-col">' +
						this._get(inst, 'calculateWeek')(printDate) + '</td>');
					for (var dow = 0; dow < 7; dow++) { // create date picker days
						var daySettings = (beforeShowDay ?
							beforeShowDay.apply((inst.input ? inst.input[0] : null), [printDate]) : [true, '']);
						var otherMonth = (printDate.getMonth() != drawMonth);
						var unselectable = (otherMonth && !selectOtherMonths) || !daySettings[0] ||
							(minDate && printDate < minDate) || (maxDate && printDate > maxDate);
						tbody += '<td class="' +
							((dow + firstDay + 6) % 7 >= 5 ? ' ui-datepicker-week-end' : '') + // highlight weekends
							(otherMonth ? ' ui-datepicker-other-month' : '') + // highlight days from other months
							((printDate.getTime() == selectedDate.getTime() && drawMonth == inst.selectedMonth && inst._keyEvent) || // user pressed key
							(defaultDate.getTime() == printDate.getTime() && defaultDate.getTime() == selectedDate.getTime()) ?
							// or defaultDate is current printedDate and defaultDate is selectedDate
							' ' + this._dayOverClass : '') + // highlight selected day
							(unselectable ? ' ' + this._unselectableClass + ' ui-state-disabled': '') +  // highlight unselectable days
							(otherMonth && !showOtherMonths ? '' : ' ' + daySettings[1] + // highlight custom dates
							(printDate.getTime() == currentDate.getTime() ? ' ' + this._currentClass : '') + // highlight selected day
							(printDate.getTime() == today.getTime() ? ' ui-datepicker-today' : '')) + '"' + // highlight today (if different)
							((!otherMonth || showOtherMonths) && daySettings[2] ? ' title="' + daySettings[2] + '"' : '') + // cell title
							(unselectable ? '' : ' data-handler="selectDay" data-event="click" data-month="' + printDate.getMonth() + '" data-year="' + printDate.getFullYear() + '"') + '>' + // actions
							(otherMonth && !showOtherMonths ? '&#xa0;' : // display for other months
							(unselectable ? '<span class="ui-state-default">' + printDate.getDate() + '</span>' : '<a class="ui-state-default' +
							(printDate.getTime() == today.getTime() ? ' ui-state-highlight' : '') +
							(printDate.getTime() == currentDate.getTime() ? ' ui-state-active' : '') + // highlight selected day
							(otherMonth ? ' ui-priority-secondary' : '') + // distinguish dates from other months
							'" href="#">' + printDate.getDate() + '</a>')) + '</td>'; // display selectable date
						printDate.setDate(printDate.getDate() + 1);
						printDate = this._daylightSavingAdjust(printDate);
					}
					calender += tbody + '</tr>';
				}
				drawMonth++;
				if (drawMonth > 11) {
					drawMonth = 0;
					drawYear++;
				}
				calender += '</tbody></table>' + (isMultiMonth ? '</div>' +
							((numMonths[0] > 0 && col == numMonths[1]-1) ? '<div class="ui-datepicker-row-break"></div>' : '') : '');
				group += calender;
			}
			html += group;
		}
		html += buttonPanel + ($.ui.ie6 && !inst.inline ?
			'<iframe src="javascript:false;" class="ui-datepicker-cover" frameborder="0"></iframe>' : '');
		inst._keyEvent = false;
		return html;
	},

	/* Generate the month and year header. */
	_generateMonthYearHeader: function(inst, drawMonth, drawYear, minDate, maxDate,
			secondary, monthNames, monthNamesShort) {
		var changeMonth = this._get(inst, 'changeMonth');
		var changeYear = this._get(inst, 'changeYear');
		var showMonthAfterYear = this._get(inst, 'showMonthAfterYear');
		var html = '<div class="ui-datepicker-title">';
		var monthHtml = '';
		// month selection
		if (secondary || !changeMonth)
			monthHtml += '<span class="ui-datepicker-month">' + monthNames[drawMonth] + '</span>';
		else {
			var inMinYear = (minDate && minDate.getFullYear() == drawYear);
			var inMaxYear = (maxDate && maxDate.getFullYear() == drawYear);
			monthHtml += '<select class="ui-datepicker-month" data-handler="selectMonth" data-event="change">';
			for (var month = 0; month < 12; month++) {
				if ((!inMinYear || month >= minDate.getMonth()) &&
						(!inMaxYear || month <= maxDate.getMonth()))
					monthHtml += '<option value="' + month + '"' +
						(month == drawMonth ? ' selected="selected"' : '') +
						'>' + monthNamesShort[month] + '</option>';
			}
			monthHtml += '</select>';
		}
		if (!showMonthAfterYear)
			html += monthHtml + (secondary || !(changeMonth && changeYear) ? '&#xa0;' : '');
		// year selection
		if ( !inst.yearshtml ) {
			inst.yearshtml = '';
			if (secondary || !changeYear)
				html += '<span class="ui-datepicker-year">' + drawYear + '</span>';
			else {
				// determine range of years to display
				var years = this._get(inst, 'yearRange').split(':');
				var thisYear = new Date().getFullYear();
				var determineYear = function(value) {
					var year = (value.match(/c[+-].*/) ? drawYear + parseInt(value.substring(1), 10) :
						(value.match(/[+-].*/) ? thisYear + parseInt(value, 10) :
						parseInt(value, 10)));
					return (isNaN(year) ? thisYear : year);
				};
				var year = determineYear(years[0]);
				var endYear = Math.max(year, determineYear(years[1] || ''));
				year = (minDate ? Math.max(year, minDate.getFullYear()) : year);
				endYear = (maxDate ? Math.min(endYear, maxDate.getFullYear()) : endYear);
				inst.yearshtml += '<select class="ui-datepicker-year" data-handler="selectYear" data-event="change">';
				for (; year <= endYear; year++) {
					inst.yearshtml += '<option value="' + year + '"' +
						(year == drawYear ? ' selected="selected"' : '') +
						'>' + year + '</option>';
				}
				inst.yearshtml += '</select>';

				html += inst.yearshtml;
				inst.yearshtml = null;
			}
		}
		html += this._get(inst, 'yearSuffix');
		if (showMonthAfterYear)
			html += (secondary || !(changeMonth && changeYear) ? '&#xa0;' : '') + monthHtml;
		html += '</div>'; // Close datepicker_header
		return html;
	},

	/* Adjust one of the date sub-fields. */
	_adjustInstDate: function(inst, offset, period) {
		var year = inst.drawYear + (period == 'Y' ? offset : 0);
		var month = inst.drawMonth + (period == 'M' ? offset : 0);
		var day = Math.min(inst.selectedDay, this._getDaysInMonth(year, month)) +
			(period == 'D' ? offset : 0);
		var date = this._restrictMinMax(inst,
			this._daylightSavingAdjust(new Date(year, month, day)));
		inst.selectedDay = date.getDate();
		inst.drawMonth = inst.selectedMonth = date.getMonth();
		inst.drawYear = inst.selectedYear = date.getFullYear();
		if (period == 'M' || period == 'Y')
			this._notifyChange(inst);
	},

	/* Ensure a date is within any min/max bounds. */
	_restrictMinMax: function(inst, date) {
		var minDate = this._getMinMaxDate(inst, 'min');
		var maxDate = this._getMinMaxDate(inst, 'max');
		var newDate = (minDate && date < minDate ? minDate : date);
		newDate = (maxDate && newDate > maxDate ? maxDate : newDate);
		return newDate;
	},

	/* Notify change of month/year. */
	_notifyChange: function(inst) {
		var onChange = this._get(inst, 'onChangeMonthYear');
		if (onChange)
			onChange.apply((inst.input ? inst.input[0] : null),
				[inst.selectedYear, inst.selectedMonth + 1, inst]);
	},

	/* Determine the number of months to show. */
	_getNumberOfMonths: function(inst) {
		var numMonths = this._get(inst, 'numberOfMonths');
		return (numMonths == null ? [1, 1] : (typeof numMonths == 'number' ? [1, numMonths] : numMonths));
	},

	/* Determine the current maximum date - ensure no time components are set. */
	_getMinMaxDate: function(inst, minMax) {
		return this._determineDate(inst, this._get(inst, minMax + 'Date'), null);
	},

	/* Find the number of days in a given month. */
	_getDaysInMonth: function(year, month) {
		return 32 - this._daylightSavingAdjust(new Date(year, month, 32)).getDate();
	},

	/* Find the day of the week of the first of a month. */
	_getFirstDayOfMonth: function(year, month) {
		return new Date(year, month, 1).getDay();
	},

	/* Determines if we should allow a "next/prev" month display change. */
	_canAdjustMonth: function(inst, offset, curYear, curMonth) {
		var numMonths = this._getNumberOfMonths(inst);
		var date = this._daylightSavingAdjust(new Date(curYear,
			curMonth + (offset < 0 ? offset : numMonths[0] * numMonths[1]), 1));
		if (offset < 0)
			date.setDate(this._getDaysInMonth(date.getFullYear(), date.getMonth()));
		return this._isInRange(inst, date);
	},

	/* Is the given date in the accepted range? */
	_isInRange: function(inst, date) {
		var minDate = this._getMinMaxDate(inst, 'min');
		var maxDate = this._getMinMaxDate(inst, 'max');
		return ((!minDate || date.getTime() >= minDate.getTime()) &&
			(!maxDate || date.getTime() <= maxDate.getTime()));
	},

	/* Provide the configuration settings for formatting/parsing. */
	_getFormatConfig: function(inst) {
		var shortYearCutoff = this._get(inst, 'shortYearCutoff');
		shortYearCutoff = (typeof shortYearCutoff != 'string' ? shortYearCutoff :
			new Date().getFullYear() % 100 + parseInt(shortYearCutoff, 10));
		return {shortYearCutoff: shortYearCutoff,
			dayNamesShort: this._get(inst, 'dayNamesShort'), dayNames: this._get(inst, 'dayNames'),
			monthNamesShort: this._get(inst, 'monthNamesShort'), monthNames: this._get(inst, 'monthNames')};
	},

	/* Format the given date for display. */
	_formatDate: function(inst, day, month, year) {
		if (!day) {
			inst.currentDay = inst.selectedDay;
			inst.currentMonth = inst.selectedMonth;
			inst.currentYear = inst.selectedYear;
		}
		var date = (day ? (typeof day == 'object' ? day :
			this._daylightSavingAdjust(new Date(year, month, day))) :
			this._daylightSavingAdjust(new Date(inst.currentYear, inst.currentMonth, inst.currentDay)));
		return this.formatDate(this._get(inst, 'dateFormat'), date, this._getFormatConfig(inst));
	}
});

/*
 * Bind hover events for datepicker elements.
 * Done via delegate so the binding only occurs once in the lifetime of the parent div.
 * Global instActive, set by _updateDatepicker allows the handlers to find their way back to the active picker.
 */
function bindHover(dpDiv) {
	var selector = 'button, .ui-datepicker-prev, .ui-datepicker-next, .ui-datepicker-calendar td a';
	return dpDiv.delegate(selector, 'mouseout', function() {
			$(this).removeClass('ui-state-hover');
			if (this.className.indexOf('ui-datepicker-prev') != -1) $(this).removeClass('ui-datepicker-prev-hover');
			if (this.className.indexOf('ui-datepicker-next') != -1) $(this).removeClass('ui-datepicker-next-hover');
		})
		.delegate(selector, 'mouseover', function(){
			if (!$.datepicker._isDisabledDatepicker( instActive.inline ? dpDiv.parent()[0] : instActive.input[0])) {
				$(this).parents('.ui-datepicker-calendar').find('a').removeClass('ui-state-hover');
				$(this).addClass('ui-state-hover');
				if (this.className.indexOf('ui-datepicker-prev') != -1) $(this).addClass('ui-datepicker-prev-hover');
				if (this.className.indexOf('ui-datepicker-next') != -1) $(this).addClass('ui-datepicker-next-hover');
			}
		});
}

/* jQuery extend now ignores nulls! */
function extendRemove(target, props) {
	$.extend(target, props);
	for (var name in props)
		if (props[name] == null || props[name] == undefined)
			target[name] = props[name];
	return target;
};

/* Invoke the datepicker functionality.
   @param  options  string - a command, optionally followed by additional parameters or
	                Object - settings for attaching new datepicker functionality
   @return  jQuery object */
$.fn.datepicker = function(options){

	/* Verify an empty collection wasn't passed - Fixes #6976 */
	if ( !this.length ) {
		return this;
	}

	/* Initialise the date picker. */
	if (!$.datepicker.initialized) {
		$(document).mousedown($.datepicker._checkExternalClick).
			find(document.body).append($.datepicker.dpDiv);
		$.datepicker.initialized = true;
	}

	var otherArgs = Array.prototype.slice.call(arguments, 1);
	if (typeof options == 'string' && (options == 'isDisabled' || options == 'getDate' || options == 'widget'))
		return $.datepicker['_' + options + 'Datepicker'].
			apply($.datepicker, [this[0]].concat(otherArgs));
	if (options == 'option' && arguments.length == 2 && typeof arguments[1] == 'string')
		return $.datepicker['_' + options + 'Datepicker'].
			apply($.datepicker, [this[0]].concat(otherArgs));
	return this.each(function() {
		typeof options == 'string' ?
			$.datepicker['_' + options + 'Datepicker'].
				apply($.datepicker, [this].concat(otherArgs)) :
			$.datepicker._attachDatepicker(this, options);
	});
};

$.datepicker = new Datepicker(); // singleton instance
$.datepicker.initialized = false;
$.datepicker.uuid = new Date().getTime();
$.datepicker.version = "1.9.2";

// Workaround for #4055
// Add another global to avoid noConflict issues with inline event handlers
window['DP_jQuery_' + dpuuid] = $;

})(jQuery);
(function( $, undefined ) {

var uiDialogClasses = "ui-dialog ui-widget ui-widget-content ui-corner-all ",
	sizeRelatedOptions = {
		buttons: true,
		height: true,
		maxHeight: true,
		maxWidth: true,
		minHeight: true,
		minWidth: true,
		width: true
	},
	resizableRelatedOptions = {
		maxHeight: true,
		maxWidth: true,
		minHeight: true,
		minWidth: true
	};

$.widget("ui.dialog", {
	version: "1.9.2",
	options: {
		autoOpen: true,
		buttons: {},
		closeOnEscape: true,
		closeText: "close",
		dialogClass: "",
		draggable: true,
		hide: null,
		height: "auto",
		maxHeight: false,
		maxWidth: false,
		minHeight: 150,
		minWidth: 150,
		modal: false,
		position: {
			my: "center",
			at: "center",
			of: window,
			collision: "fit",
			// ensure that the titlebar is never outside the document
			using: function( pos ) {
				var topOffset = $( this ).css( pos ).offset().top;
				if ( topOffset < 0 ) {
					$( this ).css( "top", pos.top - topOffset );
				}
			}
		},
		resizable: true,
		show: null,
		stack: true,
		title: "",
		width: 300,
		zIndex: 1000
	},

	_create: function() {
		this.originalTitle = this.element.attr( "title" );
		// #5742 - .attr() might return a DOMElement
		if ( typeof this.originalTitle !== "string" ) {
			this.originalTitle = "";
		}
		this.oldPosition = {
			parent: this.element.parent(),
			index: this.element.parent().children().index( this.element )
		};
		this.options.title = this.options.title || this.originalTitle;
		var that = this,
			options = this.options,

			title = options.title || "&#160;",
			uiDialog,
			uiDialogTitlebar,
			uiDialogTitlebarClose,
			uiDialogTitle,
			uiDialogButtonPane;

			uiDialog = ( this.uiDialog = $( "<div>" ) )
				.addClass( uiDialogClasses + options.dialogClass )
				.css({
					display: "none",
					outline: 0, // TODO: move to stylesheet
					zIndex: options.zIndex
				})
				// setting tabIndex makes the div focusable
				.attr( "tabIndex", -1)
				.keydown(function( event ) {
					if ( options.closeOnEscape && !event.isDefaultPrevented() && event.keyCode &&
							event.keyCode === $.ui.keyCode.ESCAPE ) {
						that.close( event );
						event.preventDefault();
					}
				})
				.mousedown(function( event ) {
					that.moveToTop( false, event );
				})
				.appendTo( "body" );

			this.element
				.show()
				.removeAttr( "title" )
				.addClass( "ui-dialog-content ui-widget-content" )
				.appendTo( uiDialog );

			uiDialogTitlebar = ( this.uiDialogTitlebar = $( "<div>" ) )
				.addClass( "ui-dialog-titlebar  ui-widget-header  " +
					"ui-corner-all  ui-helper-clearfix" )
				.bind( "mousedown", function() {
					// Dialog isn't getting focus when dragging (#8063)
					uiDialog.focus();
				})
				.prependTo( uiDialog );

			uiDialogTitlebarClose = $( "<a href='#'></a>" )
				.addClass( "ui-dialog-titlebar-close  ui-corner-all" )
				.attr( "role", "button" )
				.click(function( event ) {
					event.preventDefault();
					that.close( event );
				})
				.appendTo( uiDialogTitlebar );

			( this.uiDialogTitlebarCloseText = $( "<span>" ) )
				.addClass( "ui-icon ui-icon-closethick" )
				.text( options.closeText )
				.appendTo( uiDialogTitlebarClose );

			uiDialogTitle = $( "<span>" )
				.uniqueId()
				.addClass( "ui-dialog-title" )
				.html( title )
				.prependTo( uiDialogTitlebar );

			uiDialogButtonPane = ( this.uiDialogButtonPane = $( "<div>" ) )
				.addClass( "ui-dialog-buttonpane ui-widget-content ui-helper-clearfix" );

			( this.uiButtonSet = $( "<div>" ) )
				.addClass( "ui-dialog-buttonset" )
				.appendTo( uiDialogButtonPane );

		uiDialog.attr({
			role: "dialog",
			"aria-labelledby": uiDialogTitle.attr( "id" )
		});

		uiDialogTitlebar.find( "*" ).add( uiDialogTitlebar ).disableSelection();
		this._hoverable( uiDialogTitlebarClose );
		this._focusable( uiDialogTitlebarClose );

		if ( options.draggable && $.fn.draggable ) {
			this._makeDraggable();
		}
		if ( options.resizable && $.fn.resizable ) {
			this._makeResizable();
		}

		this._createButtons( options.buttons );
		this._isOpen = false;

		if ( $.fn.bgiframe ) {
			uiDialog.bgiframe();
		}

		// prevent tabbing out of modal dialogs
		this._on( uiDialog, { keydown: function( event ) {
			if ( !options.modal || event.keyCode !== $.ui.keyCode.TAB ) {
				return;
			}

			var tabbables = $( ":tabbable", uiDialog ),
				first = tabbables.filter( ":first" ),
				last  = tabbables.filter( ":last" );

			if ( event.target === last[0] && !event.shiftKey ) {
				first.focus( 1 );
				return false;
			} else if ( event.target === first[0] && event.shiftKey ) {
				last.focus( 1 );
				return false;
			}
		}});
	},

	_init: function() {
		if ( this.options.autoOpen ) {
			this.open();
		}
	},

	_destroy: function() {
		var next,
			oldPosition = this.oldPosition;

		if ( this.overlay ) {
			this.overlay.destroy();
		}
		this.uiDialog.hide();
		this.element
			.removeClass( "ui-dialog-content ui-widget-content" )
			.hide()
			.appendTo( "body" );
		this.uiDialog.remove();

		if ( this.originalTitle ) {
			this.element.attr( "title", this.originalTitle );
		}

		next = oldPosition.parent.children().eq( oldPosition.index );
		// Don't try to place the dialog next to itself (#8613)
		if ( next.length && next[ 0 ] !== this.element[ 0 ] ) {
			next.before( this.element );
		} else {
			oldPosition.parent.append( this.element );
		}
	},

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

	close: function( event ) {
		var that = this,
			maxZ, thisZ;

		if ( !this._isOpen ) {
			return;
		}

		if ( false === this._trigger( "beforeClose", event ) ) {
			return;
		}

		this._isOpen = false;

		if ( this.overlay ) {
			this.overlay.destroy();
		}

		if ( this.options.hide ) {
			this._hide( this.uiDialog, this.options.hide, function() {
				that._trigger( "close", event );
			});
		} else {
			this.uiDialog.hide();
			this._trigger( "close", event );
		}

		$.ui.dialog.overlay.resize();

		// adjust the maxZ to allow other modal dialogs to continue to work (see #4309)
		if ( this.options.modal ) {
			maxZ = 0;
			$( ".ui-dialog" ).each(function() {
				if ( this !== that.uiDialog[0] ) {
					thisZ = $( this ).css( "z-index" );
					if ( !isNaN( thisZ ) ) {
						maxZ = Math.max( maxZ, thisZ );
					}
				}
			});
			$.ui.dialog.maxZ = maxZ;
		}

		return this;
	},

	isOpen: function() {
		return this._isOpen;
	},

	// the force parameter allows us to move modal dialogs to their correct
	// position on open
	moveToTop: function( force, event ) {
		var options = this.options,
			saveScroll;

		if ( ( options.modal && !force ) ||
				( !options.stack && !options.modal ) ) {
			return this._trigger( "focus", event );
		}

		if ( options.zIndex > $.ui.dialog.maxZ ) {
			$.ui.dialog.maxZ = options.zIndex;
		}
		if ( this.overlay ) {
			$.ui.dialog.maxZ += 1;
			$.ui.dialog.overlay.maxZ = $.ui.dialog.maxZ;
			this.overlay.$el.css( "z-index", $.ui.dialog.overlay.maxZ );
		}

		// Save and then restore scroll
		// Opera 9.5+ resets when parent z-index is changed.
		// http://bugs.jqueryui.com/ticket/3193
		saveScroll = {
			scrollTop: this.element.scrollTop(),
			scrollLeft: this.element.scrollLeft()
		};
		$.ui.dialog.maxZ += 1;
		this.uiDialog.css( "z-index", $.ui.dialog.maxZ );
		this.element.attr( saveScroll );
		this._trigger( "focus", event );

		return this;
	},

	open: function() {
		if ( this._isOpen ) {
			return;
		}

		var hasFocus,
			options = this.options,
			uiDialog = this.uiDialog;

		this._size();
		this._position( options.position );
		uiDialog.show( options.show );
		this.overlay = options.modal ? new $.ui.dialog.overlay( this ) : null;
		this.moveToTop( true );

		// set focus to the first tabbable element in the content area or the first button
		// if there are no tabbable elements, set focus on the dialog itself
		hasFocus = this.element.find( ":tabbable" );
		if ( !hasFocus.length ) {
			hasFocus = this.uiDialogButtonPane.find( ":tabbable" );
			if ( !hasFocus.length ) {
				hasFocus = uiDialog;
			}
		}
		hasFocus.eq( 0 ).focus();

		this._isOpen = true;
		this._trigger( "open" );

		return this;
	},

	_createButtons: function( buttons ) {
		var that = this,
			hasButtons = false;

		// if we already have a button pane, remove it
		this.uiDialogButtonPane.remove();
		this.uiButtonSet.empty();

		if ( typeof buttons === "object" && buttons !== null ) {
			$.each( buttons, function() {
				return !(hasButtons = true);
			});
		}
		if ( hasButtons ) {
			$.each( buttons, function( name, props ) {
				var button, click;
				props = $.isFunction( props ) ?
					{ click: props, text: name } :
					props;
				// Default to a non-submitting button
				props = $.extend( { type: "button" }, props );
				// Change the context for the click callback to be the main element
				click = props.click;
				props.click = function() {
					click.apply( that.element[0], arguments );
				};
				button = $( "<button></button>", props )
					.appendTo( that.uiButtonSet );
				if ( $.fn.button ) {
					button.button();
				}
			});
			this.uiDialog.addClass( "ui-dialog-buttons" );
			this.uiDialogButtonPane.appendTo( this.uiDialog );
		} else {
			this.uiDialog.removeClass( "ui-dialog-buttons" );
		}
	},

	_makeDraggable: function() {
		var that = this,
			options = this.options;

		function filteredUi( ui ) {
			return {
				position: ui.position,
				offset: ui.offset
			};
		}

		this.uiDialog.draggable({
			cancel: ".ui-dialog-content, .ui-dialog-titlebar-close",
			handle: ".ui-dialog-titlebar",
			containment: "document",
			start: function( event, ui ) {
				$( this )
					.addClass( "ui-dialog-dragging" );
				that._trigger( "dragStart", event, filteredUi( ui ) );
			},
			drag: function( event, ui ) {
				that._trigger( "drag", event, filteredUi( ui ) );
			},
			stop: function( event, ui ) {
				options.position = [
					ui.position.left - that.document.scrollLeft(),
					ui.position.top - that.document.scrollTop()
				];
				$( this )
					.removeClass( "ui-dialog-dragging" );
				that._trigger( "dragStop", event, filteredUi( ui ) );
				$.ui.dialog.overlay.resize();
			}
		});
	},

	_makeResizable: function( handles ) {
		handles = (handles === undefined ? this.options.resizable : handles);
		var that = this,
			options = this.options,
			// .ui-resizable has position: relative defined in the stylesheet
			// but dialogs have to use absolute or fixed positioning
			position = this.uiDialog.css( "position" ),
			resizeHandles = typeof handles === 'string' ?
				handles	:
				"n,e,s,w,se,sw,ne,nw";

		function filteredUi( ui ) {
			return {
				originalPosition: ui.originalPosition,
				originalSize: ui.originalSize,
				position: ui.position,
				size: ui.size
			};
		}

		this.uiDialog.resizable({
			cancel: ".ui-dialog-content",
			containment: "document",
			alsoResize: this.element,
			maxWidth: options.maxWidth,
			maxHeight: options.maxHeight,
			minWidth: options.minWidth,
			minHeight: this._minHeight(),
			handles: resizeHandles,
			start: function( event, ui ) {
				$( this ).addClass( "ui-dialog-resizing" );
				that._trigger( "resizeStart", event, filteredUi( ui ) );
			},
			resize: function( event, ui ) {
				that._trigger( "resize", event, filteredUi( ui ) );
			},
			stop: function( event, ui ) {
				$( this ).removeClass( "ui-dialog-resizing" );
				options.height = $( this ).height();
				options.width = $( this ).width();
				that._trigger( "resizeStop", event, filteredUi( ui ) );
				$.ui.dialog.overlay.resize();
			}
		})
		.css( "position", position )
		.find( ".ui-resizable-se" )
			.addClass( "ui-icon ui-icon-grip-diagonal-se" );
	},

	_minHeight: function() {
		var options = this.options;

		if ( options.height === "auto" ) {
			return options.minHeight;
		} else {
			return Math.min( options.minHeight, options.height );
		}
	},

	_position: function( position ) {
		var myAt = [],
			offset = [ 0, 0 ],
			isVisible;

		if ( position ) {
			// deep extending converts arrays to objects in jQuery <= 1.3.2 :-(
	//		if (typeof position == 'string' || $.isArray(position)) {
	//			myAt = $.isArray(position) ? position : position.split(' ');

			if ( typeof position === "string" || (typeof position === "object" && "0" in position ) ) {
				myAt = position.split ? position.split( " " ) : [ position[ 0 ], position[ 1 ] ];
				if ( myAt.length === 1 ) {
					myAt[ 1 ] = myAt[ 0 ];
				}

				$.each( [ "left", "top" ], function( i, offsetPosition ) {
					if ( +myAt[ i ] === myAt[ i ] ) {
						offset[ i ] = myAt[ i ];
						myAt[ i ] = offsetPosition;
					}
				});

				position = {
					my: myAt[0] + (offset[0] < 0 ? offset[0] : "+" + offset[0]) + " " +
						myAt[1] + (offset[1] < 0 ? offset[1] : "+" + offset[1]),
					at: myAt.join( " " )
				};
			}

			position = $.extend( {}, $.ui.dialog.prototype.options.position, position );
		} else {
			position = $.ui.dialog.prototype.options.position;
		}

		// need to show the dialog to get the actual offset in the position plugin
		isVisible = this.uiDialog.is( ":visible" );
		if ( !isVisible ) {
			this.uiDialog.show();
		}
		this.uiDialog.position( position );
		if ( !isVisible ) {
			this.uiDialog.hide();
		}
	},

	_setOptions: function( options ) {
		var that = this,
			resizableOptions = {},
			resize = false;

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

			if ( key in sizeRelatedOptions ) {
				resize = true;
			}
			if ( key in resizableRelatedOptions ) {
				resizableOptions[ key ] = value;
			}
		});

		if ( resize ) {
			this._size();
		}
		if ( this.uiDialog.is( ":data(resizable)" ) ) {
			this.uiDialog.resizable( "option", resizableOptions );
		}
	},

	_setOption: function( key, value ) {
		var isDraggable, isResizable,
			uiDialog = this.uiDialog;

		switch ( key ) {
			case "buttons":
				this._createButtons( value );
				break;
			case "closeText":
				// ensure that we always pass a string
				this.uiDialogTitlebarCloseText.text( "" + value );
				break;
			case "dialogClass":
				uiDialog
					.removeClass( this.options.dialogClass )
					.addClass( uiDialogClasses + value );
				break;
			case "disabled":
				if ( value ) {
					uiDialog.addClass( "ui-dialog-disabled" );
				} else {
					uiDialog.removeClass( "ui-dialog-disabled" );
				}
				break;
			case "draggable":
				isDraggable = uiDialog.is( ":data(draggable)" );
				if ( isDraggable && !value ) {
					uiDialog.draggable( "destroy" );
				}

				if ( !isDraggable && value ) {
					this._makeDraggable();
				}
				break;
			case "position":
				this._position( value );
				break;
			case "resizable":
				// currently resizable, becoming non-resizable
				isResizable = uiDialog.is( ":data(resizable)" );
				if ( isResizable && !value ) {
					uiDialog.resizable( "destroy" );
				}

				// currently resizable, changing handles
				if ( isResizable && typeof value === "string" ) {
					uiDialog.resizable( "option", "handles", value );
				}

				// currently non-resizable, becoming resizable
				if ( !isResizable && value !== false ) {
					this._makeResizable( value );
				}
				break;
			case "title":
				// convert whatever was passed in o a string, for html() to not throw up
				$( ".ui-dialog-title", this.uiDialogTitlebar )
					.html( "" + ( value || "&#160;" ) );
				break;
		}

		this._super( key, value );
	},

	_size: function() {
		/* If the user has resized the dialog, the .ui-dialog and .ui-dialog-content
		 * divs will both have width and height set, so we need to reset them
		 */
		var nonContentHeight, minContentHeight, autoHeight,
			options = this.options,
			isVisible = this.uiDialog.is( ":visible" );

		// reset content sizing
		this.element.show().css({
			width: "auto",
			minHeight: 0,
			height: 0
		});

		if ( options.minWidth > options.width ) {
			options.width = options.minWidth;
		}

		// reset wrapper sizing
		// determine the height of all the non-content elements
		nonContentHeight = this.uiDialog.css({
				height: "auto",
				width: options.width
			})
			.outerHeight();
		minContentHeight = Math.max( 0, options.minHeight - nonContentHeight );

		if ( options.height === "auto" ) {
			// only needed for IE6 support
			if ( $.support.minHeight ) {
				this.element.css({
					minHeight: minContentHeight,
					height: "auto"
				});
			} else {
				this.uiDialog.show();
				autoHeight = this.element.css( "height", "auto" ).height();
				if ( !isVisible ) {
					this.uiDialog.hide();
				}
				this.element.height( Math.max( autoHeight, minContentHeight ) );
			}
		} else {
			this.element.height( Math.max( options.height - nonContentHeight, 0 ) );
		}

		if (this.uiDialog.is( ":data(resizable)" ) ) {
			this.uiDialog.resizable( "option", "minHeight", this._minHeight() );
		}
	}
});

$.extend($.ui.dialog, {
	uuid: 0,
	maxZ: 0,

	getTitleId: function($el) {
		var id = $el.attr( "id" );
		if ( !id ) {
			this.uuid += 1;
			id = this.uuid;
		}
		return "ui-dialog-title-" + id;
	},

	overlay: function( dialog ) {
		this.$el = $.ui.dialog.overlay.create( dialog );
	}
});

$.extend( $.ui.dialog.overlay, {
	instances: [],
	// reuse old instances due to IE memory leak with alpha transparency (see #5185)
	oldInstances: [],
	maxZ: 0,
	events: $.map(
		"focus,mousedown,mouseup,keydown,keypress,click".split( "," ),
		function( event ) {
			return event + ".dialog-overlay";
		}
	).join( " " ),
	create: function( dialog ) {
		if ( this.instances.length === 0 ) {
			// prevent use of anchors and inputs
			// we use a setTimeout in case the overlay is created from an
			// event that we're going to be cancelling (see #2804)
			setTimeout(function() {
				// handle $(el).dialog().dialog('close') (see #4065)
				if ( $.ui.dialog.overlay.instances.length ) {
					$( document ).bind( $.ui.dialog.overlay.events, function( event ) {
						// stop events if the z-index of the target is < the z-index of the overlay
						// we cannot return true when we don't want to cancel the event (#3523)
						if ( $( event.target ).zIndex() < $.ui.dialog.overlay.maxZ ) {
							return false;
						}
					});
				}
			}, 1 );

			// handle window resize
			$( window ).bind( "resize.dialog-overlay", $.ui.dialog.overlay.resize );
		}

		var $el = ( this.oldInstances.pop() || $( "<div>" ).addClass( "ui-widget-overlay" ) );

		// allow closing by pressing the escape key
		$( document ).bind( "keydown.dialog-overlay", function( event ) {
			var instances = $.ui.dialog.overlay.instances;
			// only react to the event if we're the top overlay
			if ( instances.length !== 0 && instances[ instances.length - 1 ] === $el &&
				dialog.options.closeOnEscape && !event.isDefaultPrevented() && event.keyCode &&
				event.keyCode === $.ui.keyCode.ESCAPE ) {

				dialog.close( event );
				event.preventDefault();
			}
		});

		$el.appendTo( document.body ).css({
			width: this.width(),
			height: this.height()
		});

		if ( $.fn.bgiframe ) {
			$el.bgiframe();
		}

		this.instances.push( $el );
		return $el;
	},

	destroy: function( $el ) {
		var indexOf = $.inArray( $el, this.instances ),
			maxZ = 0;

		if ( indexOf !== -1 ) {
			this.oldInstances.push( this.instances.splice( indexOf, 1 )[ 0 ] );
		}

		if ( this.instances.length === 0 ) {
			$( [ document, window ] ).unbind( ".dialog-overlay" );
		}

		$el.height( 0 ).width( 0 ).remove();

		// adjust the maxZ to allow other modal dialogs to continue to work (see #4309)
		$.each( this.instances, function() {
			maxZ = Math.max( maxZ, this.css( "z-index" ) );
		});
		this.maxZ = maxZ;
	},

	height: function() {
		var scrollHeight,
			offsetHeight;
		// handle IE
		if ( $.ui.ie ) {
			scrollHeight = Math.max(
				document.documentElement.scrollHeight,
				document.body.scrollHeight
			);
			offsetHeight = Math.max(
				document.documentElement.offsetHeight,
				document.body.offsetHeight
			);

			if ( scrollHeight < offsetHeight ) {
				return $( window ).height() + "px";
			} else {
				return scrollHeight + "px";
			}
		// handle "good" browsers
		} else {
			return $( document ).height() + "px";
		}
	},

	width: function() {
		var scrollWidth,
			offsetWidth;
		// handle IE
		if ( $.ui.ie ) {
			scrollWidth = Math.max(
				document.documentElement.scrollWidth,
				document.body.scrollWidth
			);
			offsetWidth = Math.max(
				document.documentElement.offsetWidth,
				document.body.offsetWidth
			);

			if ( scrollWidth < offsetWidth ) {
				return $( window ).width() + "px";
			} else {
				return scrollWidth + "px";
			}
		// handle "good" browsers
		} else {
			return $( document ).width() + "px";
		}
	},

	resize: function() {
		/* If the dialog is draggable and the user drags it past the
		 * right edge of the window, the document becomes wider so we
		 * need to stretch the overlay. If the user then drags the
		 * dialog back to the left, the document will become narrower,
		 * so we need to shrink the overlay to the appropriate size.
		 * This is handled by shrinking the overlay before setting it
		 * to the full document size.
		 */
		var $overlays = $( [] );
		$.each( $.ui.dialog.overlay.instances, function() {
			$overlays = $overlays.add( this );
		});

		$overlays.css({
			width: 0,
			height: 0
		}).css({
			width: $.ui.dialog.overlay.width(),
			height: $.ui.dialog.overlay.height()
		});
	}
});

$.extend( $.ui.dialog.overlay.prototype, {
	destroy: function() {
		$.ui.dialog.overlay.destroy( this.$el );
	}
});

}( jQuery ) );
(function( $ ) {

function modifier( fn ) {
	return function() {
		var previous = this.element.val();
		fn.apply( this, arguments );
		this._refresh();
		if ( previous !== this.element.val() ) {
			this._trigger( "change" );
		}
	};
}

$.widget( "ui.spinner", {
	version: "1.9.2",
	defaultElement: "<input>",
	widgetEventPrefix: "spin",
	options: {
		culture: null,
		icons: {
			down: "ui-icon-triangle-1-s",
			up: "ui-icon-triangle-1-n"
		},
		incremental: true,
		max: null,
		min: null,
		numberFormat: null,
		page: 10,
		step: 1,

		change: null,
		spin: null,
		start: null,
		stop: null
	},

	_create: function() {
		// handle string values that need to be parsed
		this._setOption( "max", this.options.max );
		this._setOption( "min", this.options.min );
		this._setOption( "step", this.options.step );

		// format the value, but don't constrain
		this._value( this.element.val(), true );

		this._draw();
		this._on( this._events );
		this._refresh();

		// turning off autocomplete prevents the browser from remembering the
		// value when navigating through history, so we re-enable autocomplete
		// if the page is unloaded before the widget is destroyed. #7790
		this._on( this.window, {
			beforeunload: function() {
				this.element.removeAttr( "autocomplete" );
			}
		});
	},

	_getCreateOptions: function() {
		var options = {},
			element = this.element;

		$.each( [ "min", "max", "step" ], function( i, option ) {
			var value = element.attr( option );
			if ( value !== undefined && value.length ) {
				options[ option ] = value;
			}
		});

		return options;
	},

	_events: {
		keydown: function( event ) {
			if ( this._start( event ) && this._keydown( event ) ) {
				event.preventDefault();
			}
		},
		keyup: "_stop",
		focus: function() {
			this.previous = this.element.val();
		},
		blur: function( event ) {
			if ( this.cancelBlur ) {
				delete this.cancelBlur;
				return;
			}

			this._refresh();
			if ( this.previous !== this.element.val() ) {
				this._trigger( "change", event );
			}
		},
		mousewheel: function( event, delta ) {
			if ( !delta ) {
				return;
			}
			if ( !this.spinning && !this._start( event ) ) {
				return false;
			}

			this._spin( (delta > 0 ? 1 : -1) * this.options.step, event );
			clearTimeout( this.mousewheelTimer );
			this.mousewheelTimer = this._delay(function() {
				if ( this.spinning ) {
					this._stop( event );
				}
			}, 100 );
			event.preventDefault();
		},
		"mousedown .ui-spinner-button": function( event ) {
			var previous;

			// We never want the buttons to have focus; whenever the user is
			// interacting with the spinner, the focus should be on the input.
			// If the input is focused then this.previous is properly set from
			// when the input first received focus. If the input is not focused
			// then we need to set this.previous based on the value before spinning.
			previous = this.element[0] === this.document[0].activeElement ?
				this.previous : this.element.val();
			function checkFocus() {
				var isActive = this.element[0] === this.document[0].activeElement;
				if ( !isActive ) {
					this.element.focus();
					this.previous = previous;
					// support: IE
					// IE sets focus asynchronously, so we need to check if focus
					// moved off of the input because the user clicked on the button.
					this._delay(function() {
						this.previous = previous;
					});
				}
			}

			// ensure focus is on (or stays on) the text field
			event.preventDefault();
			checkFocus.call( this );

			// support: IE
			// IE doesn't prevent moving focus even with event.preventDefault()
			// so we set a flag to know when we should ignore the blur event
			// and check (again) if focus moved off of the input.
			this.cancelBlur = true;
			this._delay(function() {
				delete this.cancelBlur;
				checkFocus.call( this );
			});

			if ( this._start( event ) === false ) {
				return;
			}

			this._repeat( null, $( event.currentTarget ).hasClass( "ui-spinner-up" ) ? 1 : -1, event );
		},
		"mouseup .ui-spinner-button": "_stop",
		"mouseenter .ui-spinner-button": function( event ) {
			// button will add ui-state-active if mouse was down while mouseleave and kept down
			if ( !$( event.currentTarget ).hasClass( "ui-state-active" ) ) {
				return;
			}

			if ( this._start( event ) === false ) {
				return false;
			}
			this._repeat( null, $( event.currentTarget ).hasClass( "ui-spinner-up" ) ? 1 : -1, event );
		},
		// TODO: do we really want to consider this a stop?
		// shouldn't we just stop the repeater and wait until mouseup before
		// we trigger the stop event?
		"mouseleave .ui-spinner-button": "_stop"
	},

	_draw: function() {
		var uiSpinner = this.uiSpinner = this.element
			.addClass( "ui-spinner-input" )
			.attr( "autocomplete", "off" )
			.wrap( this._uiSpinnerHtml() )
			.parent()
				// add buttons
				.append( this._buttonHtml() );

		this.element.attr( "role", "spinbutton" );

		// button bindings
		this.buttons = uiSpinner.find( ".ui-spinner-button" )
			.attr( "tabIndex", -1 )
			.button()
			.removeClass( "ui-corner-all" );

		// IE 6 doesn't understand height: 50% for the buttons
		// unless the wrapper has an explicit height
		if ( this.buttons.height() > Math.ceil( uiSpinner.height() * 0.5 ) &&
				uiSpinner.height() > 0 ) {
			uiSpinner.height( uiSpinner.height() );
		}

		// disable spinner if element was already disabled
		if ( this.options.disabled ) {
			this.disable();
		}
	},

	_keydown: function( event ) {
		var options = this.options,
			keyCode = $.ui.keyCode;

		switch ( event.keyCode ) {
		case keyCode.UP:
			this._repeat( null, 1, event );
			return true;
		case keyCode.DOWN:
			this._repeat( null, -1, event );
			return true;
		case keyCode.PAGE_UP:
			this._repeat( null, options.page, event );
			return true;
		case keyCode.PAGE_DOWN:
			this._repeat( null, -options.page, event );
			return true;
		}

		return false;
	},

	_uiSpinnerHtml: function() {
		return "<span class='ui-spinner ui-widget ui-widget-content ui-corner-all'></span>";
	},

	_buttonHtml: function() {
		return "" +
			"<a class='ui-spinner-button ui-spinner-up ui-corner-tr'>" +
				"<span class='ui-icon " + this.options.icons.up + "'>&#9650;</span>" +
			"</a>" +
			"<a class='ui-spinner-button ui-spinner-down ui-corner-br'>" +
				"<span class='ui-icon " + this.options.icons.down + "'>&#9660;</span>" +
			"</a>";
	},

	_start: function( event ) {
		if ( !this.spinning && this._trigger( "start", event ) === false ) {
			return false;
		}

		if ( !this.counter ) {
			this.counter = 1;
		}
		this.spinning = true;
		return true;
	},

	_repeat: function( i, steps, event ) {
		i = i || 500;

		clearTimeout( this.timer );
		this.timer = this._delay(function() {
			this._repeat( 40, steps, event );
		}, i );

		this._spin( steps * this.options.step, event );
	},

	_spin: function( step, event ) {
		var value = this.value() || 0;

		if ( !this.counter ) {
			this.counter = 1;
		}

		value = this._adjustValue( value + step * this._increment( this.counter ) );

		if ( !this.spinning || this._trigger( "spin", event, { value: value } ) !== false) {
			this._value( value );
			this.counter++;
		}
	},

	_increment: function( i ) {
		var incremental = this.options.incremental;

		if ( incremental ) {
			return $.isFunction( incremental ) ?
				incremental( i ) :
				Math.floor( i*i*i/50000 - i*i/500 + 17*i/200 + 1 );
		}

		return 1;
	},

	_precision: function() {
		var precision = this._precisionOf( this.options.step );
		if ( this.options.min !== null ) {
			precision = Math.max( precision, this._precisionOf( this.options.min ) );
		}
		return precision;
	},

	_precisionOf: function( num ) {
		var str = num.toString(),
			decimal = str.indexOf( "." );
		return decimal === -1 ? 0 : str.length - decimal - 1;
	},

	_adjustValue: function( value ) {
		var base, aboveMin,
			options = this.options;

		// make sure we're at a valid step
		// - find out where we are relative to the base (min or 0)
		base = options.min !== null ? options.min : 0;
		aboveMin = value - base;
		// - round to the nearest step
		aboveMin = Math.round(aboveMin / options.step) * options.step;
		// - rounding is based on 0, so adjust back to our base
		value = base + aboveMin;

		// fix precision from bad JS floating point math
		value = parseFloat( value.toFixed( this._precision() ) );

		// clamp the value
		if ( options.max !== null && value > options.max) {
			return options.max;
		}
		if ( options.min !== null && value < options.min ) {
			return options.min;
		}

		return value;
	},

	_stop: function( event ) {
		if ( !this.spinning ) {
			return;
		}

		clearTimeout( this.timer );
		clearTimeout( this.mousewheelTimer );
		this.counter = 0;
		this.spinning = false;
		this._trigger( "stop", event );
	},

	_setOption: function( key, value ) {
		if ( key === "culture" || key === "numberFormat" ) {
			var prevValue = this._parse( this.element.val() );
			this.options[ key ] = value;
			this.element.val( this._format( prevValue ) );
			return;
		}

		if ( key === "max" || key === "min" || key === "step" ) {
			if ( typeof value === "string" ) {
				value = this._parse( value );
			}
		}

		this._super( key, value );

		if ( key === "disabled" ) {
			if ( value ) {
				this.element.prop( "disabled", true );
				this.buttons.button( "disable" );
			} else {
				this.element.prop( "disabled", false );
				this.buttons.button( "enable" );
			}
		}
	},

	_setOptions: modifier(function( options ) {
		this._super( options );
		this._value( this.element.val() );
	}),

	_parse: function( val ) {
		if ( typeof val === "string" && val !== "" ) {
			val = window.Globalize && this.options.numberFormat ?
				Globalize.parseFloat( val, 10, this.options.culture ) : +val;
		}
		return val === "" || isNaN( val ) ? null : val;
	},

	_format: function( value ) {
		if ( value === "" ) {
			return "";
		}
		return window.Globalize && this.options.numberFormat ?
			Globalize.format( value, this.options.numberFormat, this.options.culture ) :
			value;
	},

	_refresh: function() {
		this.element.attr({
			"aria-valuemin": this.options.min,
			"aria-valuemax": this.options.max,
			// TODO: what should we do with values that can't be parsed?
			"aria-valuenow": this._parse( this.element.val() )
		});
	},

	// update the value without triggering change
	_value: function( value, allowAny ) {
		var parsed;
		if ( value !== "" ) {
			parsed = this._parse( value );
			if ( parsed !== null ) {
				if ( !allowAny ) {
					parsed = this._adjustValue( parsed );
				}
				value = this._format( parsed );
			}
		}
		this.element.val( value );
		this._refresh();
	},

	_destroy: function() {
		this.element
			.removeClass( "ui-spinner-input" )
			.prop( "disabled", false )
			.removeAttr( "autocomplete" )
			.removeAttr( "role" )
			.removeAttr( "aria-valuemin" )
			.removeAttr( "aria-valuemax" )
			.removeAttr( "aria-valuenow" );
		this.uiSpinner.replaceWith( this.element );
	},

	stepUp: modifier(function( steps ) {
		this._stepUp( steps );
	}),
	_stepUp: function( steps ) {
		this._spin( (steps || 1) * this.options.step );
	},

	stepDown: modifier(function( steps ) {
		this._stepDown( steps );
	}),
	_stepDown: function( steps ) {
		this._spin( (steps || 1) * -this.options.step );
	},

	pageUp: modifier(function( pages ) {
		this._stepUp( (pages || 1) * this.options.page );
	}),

	pageDown: modifier(function( pages ) {
		this._stepDown( (pages || 1) * this.options.page );
	}),

	value: function( newVal ) {
		if ( !arguments.length ) {
			return this._parse( this.element.val() );
		}
		modifier( this._value ).call( this, newVal );
	},

	widget: function() {
		return this.uiSpinner;
	}
});

}( jQuery ) );
