openrat-cms

jquery-ui.js (122889B)

---

 /*! jQuery UI - v1.12.1 - 2018-09-03
 * http://jqueryui.com
 * Includes: widget.js, data.js, scroll-parent.js, widgets/draggable.js, widgets/droppable.js, widgets/sortable.js, widgets/mouse.js
 * Copyright jQuery Foundation and other contributors; Licensed MIT */
 
 (function( factory ) {
 	if ( typeof define === "function" && define.amd ) {
 
 		// AMD. Register as an anonymous module.
 		define([ "jquery" ], factory );
 	} else {
 
 		// Browser globals
 		factory( jQuery );
 	}
 }(function( $ ) {
 
 $.ui = $.ui || {};
 
 var version = $.ui.version = "1.12.1";
 
 
 /*!
  * jQuery UI Widget 1.12.1
  * http://jqueryui.com
  *
  * Copyright jQuery Foundation and other contributors
  * Released under the MIT license.
  * http://jquery.org/license
  */
 
 //>>label: Widget
 //>>group: Core
 //>>description: Provides a factory for creating stateful widgets with a common API.
 //>>docs: http://api.jqueryui.com/jQuery.widget/
 //>>demos: http://jqueryui.com/widget/
 
 
 
 var widgetUuid = 0;
 var widgetSlice = Array.prototype.slice;
 
 $.cleanData = ( function( orig ) {
 	return function( elems ) {
 		var events, elem, i;
 		for ( i = 0; ( elem = elems[ i ] ) != null; i++ ) {
 			try {
 
 				// Only trigger remove when necessary to save time
 				events = $._data( elem, "events" );
 				if ( events && events.remove ) {
 					$( elem ).triggerHandler( "remove" );
 				}
 
 			// Http://bugs.jquery.com/ticket/8235
 			} catch ( e ) {}
 		}
 		orig( elems );
 	};
 } )( $.cleanData );
 
 $.widget = function( name, base, prototype ) {
 	var existingConstructor, constructor, basePrototype;
 
 	// ProxiedPrototype allows the provided prototype to remain unmodified
 	// so that it can be used as a mixin for multiple widgets (#8876)
 	var proxiedPrototype = {};
 
 	var namespace = name.split( "." )[ 0 ];
 	name = name.split( "." )[ 1 ];
 	var fullName = namespace + "-" + name;
 
 	if ( !prototype ) {
 		prototype = base;
 		base = $.Widget;
 	}
 
 	if ( $.isArray( prototype ) ) {
 		prototype = $.extend.apply( null, [ {} ].concat( prototype ) );
 	}
 
 	// 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 ) ) {
 			proxiedPrototype[ prop ] = value;
 			return;
 		}
 		proxiedPrototype[ prop ] = ( function() {
 			function _super() {
 				return base.prototype[ prop ].apply( this, arguments );
 			}
 
 			function _superApply( args ) {
 				return base.prototype[ prop ].apply( this, args );
 			}
 
 			return function() {
 				var __super = this._super;
 				var __superApply = this._superApply;
 				var 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 ) : name
 	}, proxiedPrototype, {
 		constructor: constructor,
 		namespace: namespace,
 		widgetName: name,
 		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 );
 
 	return constructor;
 };
 
 $.widget.extend = function( target ) {
 	var input = widgetSlice.call( arguments, 1 );
 	var inputIndex = 0;
 	var inputLength = input.length;
 	var key;
 	var 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";
 		var args = widgetSlice.call( arguments, 1 );
 		var returnValue = this;
 
 		if ( isMethodCall ) {
 
 			// If this is an empty collection, we need to have the instance method
 			// return undefined instead of the jQuery instance
 			if ( !this.length && options === "instance" ) {
 				returnValue = undefined;
 			} else {
 				this.each( function() {
 					var methodValue;
 					var instance = $.data( this, fullName );
 
 					if ( options === "instance" ) {
 						returnValue = instance;
 						return false;
 					}
 
 					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 {
 
 			// Allow multiple hashes to be passed on init
 			if ( args.length ) {
 				options = $.widget.extend.apply( null, [ options ].concat( args ) );
 			}
 
 			this.each( function() {
 				var instance = $.data( this, fullName );
 				if ( instance ) {
 					instance.option( options || {} );
 					if ( instance._init ) {
 						instance._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: {
 		classes: {},
 		disabled: false,
 
 		// Callbacks
 		create: null
 	},
 
 	_createWidget: function( options, element ) {
 		element = $( element || this.defaultElement || this )[ 0 ];
 		this.element = $( element );
 		this.uuid = widgetUuid++;
 		this.eventNamespace = "." + this.widgetName + this.uuid;
 
 		this.bindings = $();
 		this.hoverable = $();
 		this.focusable = $();
 		this.classesElementLookup = {};
 
 		if ( element !== 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.options = $.widget.extend( {},
 			this.options,
 			this._getCreateOptions(),
 			options );
 
 		this._create();
 
 		if ( this.options.disabled ) {
 			this._setOptionDisabled( this.options.disabled );
 		}
 
 		this._trigger( "create", null, this._getCreateEventData() );
 		this._init();
 	},
 
 	_getCreateOptions: function() {
 		return {};
 	},
 
 	_getCreateEventData: $.noop,
 
 	_create: $.noop,
 
 	_init: $.noop,
 
 	destroy: function() {
 		var that = this;
 
 		this._destroy();
 		$.each( this.classesElementLookup, function( key, value ) {
 			that._removeClass( value, key );
 		} );
 
 		// We can probably remove the unbind calls in 2.0
 		// all event bindings should go through this._on()
 		this.element
 			.off( this.eventNamespace )
 			.removeData( this.widgetFullName );
 		this.widget()
 			.off( this.eventNamespace )
 			.removeAttr( "aria-disabled" );
 
 		// Clean up events and states
 		this.bindings.off( this.eventNamespace );
 	},
 
 	_destroy: $.noop,
 
 	widget: function() {
 		return this.element;
 	},
 
 	option: function( key, value ) {
 		var options = key;
 		var parts;
 		var curOption;
 		var 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 ( arguments.length === 1 ) {
 					return curOption[ key ] === undefined ? null : curOption[ key ];
 				}
 				curOption[ key ] = value;
 			} else {
 				if ( arguments.length === 1 ) {
 					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 ) {
 		if ( key === "classes" ) {
 			this._setOptionClasses( value );
 		}
 
 		this.options[ key ] = value;
 
 		if ( key === "disabled" ) {
 			this._setOptionDisabled( value );
 		}
 
 		return this;
 	},
 
 	_setOptionClasses: function( value ) {
 		var classKey, elements, currentElements;
 
 		for ( classKey in value ) {
 			currentElements = this.classesElementLookup[ classKey ];
 			if ( value[ classKey ] === this.options.classes[ classKey ] ||
 					!currentElements ||
 					!currentElements.length ) {
 				continue;
 			}
 
 			// We are doing this to create a new jQuery object because the _removeClass() call
 			// on the next line is going to destroy the reference to the current elements being
 			// tracked. We need to save a copy of this collection so that we can add the new classes
 			// below.
 			elements = $( currentElements.get() );
 			this._removeClass( currentElements, classKey );
 
 			// We don't use _addClass() here, because that uses this.options.classes
 			// for generating the string of classes. We want to use the value passed in from
 			// _setOption(), this is the new value of the classes option which was passed to
 			// _setOption(). We pass this value directly to _classes().
 			elements.addClass( this._classes( {
 				element: elements,
 				keys: classKey,
 				classes: value,
 				add: true
 			} ) );
 		}
 	},
 
 	_setOptionDisabled: function( value ) {
 		this._toggleClass( this.widget(), this.widgetFullName + "-disabled", null, !!value );
 
 		// If the widget is becoming disabled, then nothing is interactive
 		if ( value ) {
 			this._removeClass( this.hoverable, null, "ui-state-hover" );
 			this._removeClass( this.focusable, null, "ui-state-focus" );
 		}
 	},
 
 	enable: function() {
 		return this._setOptions( { disabled: false } );
 	},
 
 	disable: function() {
 		return this._setOptions( { disabled: true } );
 	},
 
 	_classes: function( options ) {
 		var full = [];
 		var that = this;
 
 		options = $.extend( {
 			element: this.element,
 			classes: this.options.classes || {}
 		}, options );
 
 		function processClassString( classes, checkOption ) {
 			var current, i;
 			for ( i = 0; i < classes.length; i++ ) {
 				current = that.classesElementLookup[ classes[ i ] ] || $();
 				if ( options.add ) {
 					current = $( $.unique( current.get().concat( options.element.get() ) ) );
 				} else {
 					current = $( current.not( options.element ).get() );
 				}
 				that.classesElementLookup[ classes[ i ] ] = current;
 				full.push( classes[ i ] );
 				if ( checkOption && options.classes[ classes[ i ] ] ) {
 					full.push( options.classes[ classes[ i ] ] );
 				}
 			}
 		}
 
 		this._on( options.element, {
 			"remove": "_untrackClassesElement"
 		} );
 
 		if ( options.keys ) {
 			processClassString( options.keys.match( /\S+/g ) || [], true );
 		}
 		if ( options.extra ) {
 			processClassString( options.extra.match( /\S+/g ) || [] );
 		}
 
 		return full.join( " " );
 	},
 
 	_untrackClassesElement: function( event ) {
 		var that = this;
 		$.each( that.classesElementLookup, function( key, value ) {
 			if ( $.inArray( event.target, value ) !== -1 ) {
 				that.classesElementLookup[ key ] = $( value.not( event.target ).get() );
 			}
 		} );
 	},
 
 	_removeClass: function( element, keys, extra ) {
 		return this._toggleClass( element, keys, extra, false );
 	},
 
 	_addClass: function( element, keys, extra ) {
 		return this._toggleClass( element, keys, extra, true );
 	},
 
 	_toggleClass: function( element, keys, extra, add ) {
 		add = ( typeof add === "boolean" ) ? add : extra;
 		var shift = ( typeof element === "string" || element === null ),
 			options = {
 				extra: shift ? keys : extra,
 				keys: shift ? element : keys,
 				element: shift ? this.element : element,
 				add: add
 			};
 		options.element.toggleClass( this._classes( options ), add );
 		return this;
 	},
 
 	_on: function( suppressDisabledCheck, element, handlers ) {
 		var delegateElement;
 		var 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 {
 			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*(.*)$/ );
 			var eventName = match[ 1 ] + instance.eventNamespace;
 			var selector = match[ 2 ];
 
 			if ( selector ) {
 				delegateElement.on( eventName, selector, handlerProxy );
 			} else {
 				element.on( eventName, handlerProxy );
 			}
 		} );
 	},
 
 	_off: function( element, eventName ) {
 		eventName = ( eventName || "" ).split( " " ).join( this.eventNamespace + " " ) +
 			this.eventNamespace;
 		element.off( eventName ).off( eventName );
 
 		// Clear the stack to avoid memory leaks (#10056)
 		this.bindings = $( this.bindings.not( element ).get() );
 		this.focusable = $( this.focusable.not( element ).get() );
 		this.hoverable = $( this.hoverable.not( element ).get() );
 	},
 
 	_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 ) {
 				this._addClass( $( event.currentTarget ), null, "ui-state-hover" );
 			},
 			mouseleave: function( event ) {
 				this._removeClass( $( event.currentTarget ), null, "ui-state-hover" );
 			}
 		} );
 	},
 
 	_focusable: function( element ) {
 		this.focusable = this.focusable.add( element );
 		this._on( element, {
 			focusin: function( event ) {
 				this._addClass( $( event.currentTarget ), null, "ui-state-focus" );
 			},
 			focusout: function( event ) {
 				this._removeClass( $( event.currentTarget ), null, "ui-state-focus" );
 			}
 		} );
 	},
 
 	_trigger: function( type, event, data ) {
 		var prop, orig;
 		var 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;
 		var 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 ] ) {
 			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();
 			} );
 		}
 	};
 } );
 
 var widget = $.widget;
 
 
 /*!
  * jQuery UI :data 1.12.1
  * http://jqueryui.com
  *
  * Copyright jQuery Foundation and other contributors
  * Released under the MIT license.
  * http://jquery.org/license
  */
 
 //>>label: :data Selector
 //>>group: Core
 //>>description: Selects elements which have data stored under the specified key.
 //>>docs: http://api.jqueryui.com/data-selector/
 
 
 var data = $.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 ] );
 		}
 } );
 
 /*!
  * jQuery UI Scroll Parent 1.12.1
  * http://jqueryui.com
  *
  * Copyright jQuery Foundation and other contributors
  * Released under the MIT license.
  * http://jquery.org/license
  */
 
 //>>label: scrollParent
 //>>group: Core
 //>>description: Get the closest ancestor element that is scrollable.
 //>>docs: http://api.jqueryui.com/scrollParent/
 
 
 
 var scrollParent = $.fn.scrollParent = function( includeHidden ) {
 	var position = this.css( "position" ),
 		excludeStaticParent = position === "absolute",
 		overflowRegex = includeHidden ? /(auto|scroll|hidden)/ : /(auto|scroll)/,
 		scrollParent = this.parents().filter( function() {
 			var parent = $( this );
 			if ( excludeStaticParent && parent.css( "position" ) === "static" ) {
 				return false;
 			}
 			return overflowRegex.test( parent.css( "overflow" ) + parent.css( "overflow-y" ) +
 				parent.css( "overflow-x" ) );
 		} ).eq( 0 );
 
 	return position === "fixed" || !scrollParent.length ?
 		$( this[ 0 ].ownerDocument || document ) :
 		scrollParent;
 };
 
 
 
 
 // This file is deprecated
 var ie = $.ui.ie = !!/msie [\w.]+/.exec( navigator.userAgent.toLowerCase() );
 
 /*!
  * jQuery UI Mouse 1.12.1
  * http://jqueryui.com
  *
  * Copyright jQuery Foundation and other contributors
  * Released under the MIT license.
  * http://jquery.org/license
  */
 
 //>>label: Mouse
 //>>group: Widgets
 //>>description: Abstracts mouse-based interactions to assist in creating certain widgets.
 //>>docs: http://api.jqueryui.com/mouse/
 
 
 
 var mouseHandled = false;
 $( document ).on( "mouseup", function() {
 	mouseHandled = false;
 } );
 
 var widgetsMouse = $.widget( "ui.mouse", {
 	version: "1.12.1",
 	options: {
 		cancel: "input, textarea, button, select, option",
 		distance: 1,
 		delay: 0
 	},
 	_mouseInit: function() {
 		var that = this;
 
 		this.element
 			.on( "mousedown." + this.widgetName, function( event ) {
 				return that._mouseDown( event );
 			} )
 			.on( "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.off( "." + this.widgetName );
 		if ( this._mouseMoveDelegate ) {
 			this.document
 				.off( "mousemove." + this.widgetName, this._mouseMoveDelegate )
 				.off( "mouseup." + this.widgetName, this._mouseUpDelegate );
 		}
 	},
 
 	_mouseDown: function( event ) {
 
 		// don't let more than one widget handle mouseStart
 		if ( mouseHandled ) {
 			return;
 		}
 
 		this._mouseMoved = false;
 
 		// 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 );
 		};
 
 		this.document
 			.on( "mousemove." + this.widgetName, this._mouseMoveDelegate )
 			.on( "mouseup." + this.widgetName, this._mouseUpDelegate );
 
 		event.preventDefault();
 
 		mouseHandled = true;
 		return true;
 	},
 
 	_mouseMove: function( event ) {
 
 		// Only check for mouseups outside the document if you've moved inside the document
 		// at least once. This prevents the firing of mouseup in the case of IE<9, which will
 		// fire a mousemove event if content is placed under the cursor. See #7778
 		// Support: IE <9
 		if ( this._mouseMoved ) {
 
 			// IE mouseup check - mouseup happened when mouse was out of window
 			if ( $.ui.ie && ( !document.documentMode || document.documentMode < 9 ) &&
 					!event.button ) {
 				return this._mouseUp( event );
 
 			// Iframe mouseup check - mouseup occurred in another document
 			} else if ( !event.which ) {
 
 				// Support: Safari <=8 - 9
 				// Safari sets which to 0 if you press any of the following keys
 				// during a drag (#14461)
 				if ( event.originalEvent.altKey || event.originalEvent.ctrlKey ||
 						event.originalEvent.metaKey || event.originalEvent.shiftKey ) {
 					this.ignoreMissingWhich = true;
 				} else if ( !this.ignoreMissingWhich ) {
 					return this._mouseUp( event );
 				}
 			}
 		}
 
 		if ( event.which || event.button ) {
 			this._mouseMoved = true;
 		}
 
 		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 ) {
 		this.document
 			.off( "mousemove." + this.widgetName, this._mouseMoveDelegate )
 			.off( "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 );
 		}
 
 		if ( this._mouseDelayTimer ) {
 			clearTimeout( this._mouseDelayTimer );
 			delete this._mouseDelayTimer;
 		}
 
 		this.ignoreMissingWhich = false;
 		mouseHandled = false;
 		event.preventDefault();
 	},
 
 	_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; }
 } );
 
 
 
 
 // $.ui.plugin is deprecated. Use $.widget() extensions instead.
 var plugin = $.ui.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, allowDisconnected ) {
 		var i,
 			set = instance.plugins[ name ];
 
 		if ( !set ) {
 			return;
 		}
 
 		if ( !allowDisconnected && ( !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 );
 			}
 		}
 	}
 };
 
 
 
 var safeActiveElement = $.ui.safeActiveElement = function( document ) {
 	var activeElement;
 
 	// Support: IE 9 only
 	// IE9 throws an "Unspecified error" accessing document.activeElement from an <iframe>
 	try {
 		activeElement = document.activeElement;
 	} catch ( error ) {
 		activeElement = document.body;
 	}
 
 	// Support: IE 9 - 11 only
 	// IE may return null instead of an element
 	// Interestingly, this only seems to occur when NOT in an iframe
 	if ( !activeElement ) {
 		activeElement = document.body;
 	}
 
 	// Support: IE 11 only
 	// IE11 returns a seemingly empty object in some cases when accessing
 	// document.activeElement from an <iframe>
 	if ( !activeElement.nodeName ) {
 		activeElement = document.body;
 	}
 
 	return activeElement;
 };
 
 
 
 var safeBlur = $.ui.safeBlur = function( element ) {
 
 	// Support: IE9 - 10 only
 	// If the <body> is blurred, IE will switch windows, see #9420
 	if ( element && element.nodeName.toLowerCase() !== "body" ) {
 		$( element ).trigger( "blur" );
 	}
 };
 
 
 /*!
  * jQuery UI Draggable 1.12.1
  * http://jqueryui.com
  *
  * Copyright jQuery Foundation and other contributors
  * Released under the MIT license.
  * http://jquery.org/license
  */
 
 //>>label: Draggable
 //>>group: Interactions
 //>>description: Enables dragging functionality for any element.
 //>>docs: http://api.jqueryui.com/draggable/
 //>>demos: http://jqueryui.com/draggable/
 //>>css.structure: ../../themes/base/draggable.css
 
 
 
 $.widget( "ui.draggable", $.ui.mouse, {
 	version: "1.12.1",
 	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,
 
 		// Callbacks
 		drag: null,
 		start: null,
 		stop: null
 	},
 	_create: function() {
 
 		if ( this.options.helper === "original" ) {
 			this._setPositionRelative();
 		}
 		if ( this.options.addClasses ) {
 			this._addClass( "ui-draggable" );
 		}
 		this._setHandleClassName();
 
 		this._mouseInit();
 	},
 
 	_setOption: function( key, value ) {
 		this._super( key, value );
 		if ( key === "handle" ) {
 			this._removeHandleClassName();
 			this._setHandleClassName();
 		}
 	},
 
 	_destroy: function() {
 		if ( ( this.helper || this.element ).is( ".ui-draggable-dragging" ) ) {
 			this.destroyOnClear = true;
 			return;
 		}
 		this._removeHandleClassName();
 		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 ).closest( ".ui-resizable-handle" ).length > 0 ) {
 			return false;
 		}
 
 		//Quit if we're not on a valid handle
 		this.handle = this._getHandle( event );
 		if ( !this.handle ) {
 			return false;
 		}
 
 		this._blurActiveElement( event );
 
 		this._blockFrames( o.iframeFix === true ? "iframe" : o.iframeFix );
 
 		return true;
 
 	},
 
 	_blockFrames: function( selector ) {
 		this.iframeBlocks = this.document.find( selector ).map( function() {
 			var iframe = $( this );
 
 			return $( "<div>" )
 				.css( "position", "absolute" )
 				.appendTo( iframe.parent() )
 				.outerWidth( iframe.outerWidth() )
 				.outerHeight( iframe.outerHeight() )
 				.offset( iframe.offset() )[ 0 ];
 		} );
 	},
 
 	_unblockFrames: function() {
 		if ( this.iframeBlocks ) {
 			this.iframeBlocks.remove();
 			delete this.iframeBlocks;
 		}
 	},
 
 	_blurActiveElement: function( event ) {
 		var activeElement = $.ui.safeActiveElement( this.document[ 0 ] ),
 			target = $( event.target );
 
 		// Don't blur if the event occurred on an element that is within
 		// the currently focused element
 		// See #10527, #12472
 		if ( target.closest( activeElement ).length ) {
 			return;
 		}
 
 		// Blur any element that currently has focus, see #4261
 		$.ui.safeBlur( activeElement );
 	},
 
 	_mouseStart: function( event ) {
 
 		var o = this.options;
 
 		//Create and append the visible helper
 		this.helper = this._createHelper( event );
 
 		this._addClass( this.helper, "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( true );
 		this.offsetParent = this.helper.offsetParent();
 		this.hasFixedAncestor = this.helper.parents().filter( function() {
 				return $( this ).css( "position" ) === "fixed";
 			} ).length > 0;
 
 		//The element's absolute position on the page minus margins
 		this.positionAbs = this.element.offset();
 		this._refreshOffsets( event );
 
 		//Generate the original position
 		this.originalPosition = this.position = this._generatePosition( event, false );
 		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
 		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 );
 		}
 
 		// Execute the drag once - this causes the helper not to be visible before getting its
 		// correct position
 		this._mouseDrag( event, true );
 
 		// 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;
 	},
 
 	_refreshOffsets: function( event ) {
 		this.offset = {
 			top: this.positionAbs.top - this.margins.top,
 			left: this.positionAbs.left - this.margins.left,
 			scroll: false,
 			parent: this._getParentOffset(),
 			relative: this._getRelativeOffset()
 		};
 
 		this.offset.click = {
 			left: event.pageX - this.offset.left,
 			top: event.pageY - this.offset.top
 		};
 	},
 
 	_mouseDrag: function( event, noPropagation ) {
 
 		// reset any necessary cached properties (see #5009)
 		if ( this.hasFixedAncestor ) {
 			this.offset.parent = this._getParentOffset();
 		}
 
 		//Compute the helpers position
 		this.position = this._generatePosition( event, true );
 		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( new $.Event( "mouseup", event ) );
 				return false;
 			}
 			this.position = ui.position;
 		}
 
 		this.helper[ 0 ].style.left = this.position.left + "px";
 		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 that = this,
 			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 ( ( 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 ) )
 		) {
 			$( 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 ) {
 		this._unblockFrames();
 
 		// If the ddmanager is used for droppables, inform the manager that dragging has stopped
 		// (see #5003)
 		if ( $.ui.ddmanager ) {
 			$.ui.ddmanager.dragStop( this, event );
 		}
 
 		// Only need to focus if the event occurred on the draggable itself, see #10527
 		if ( this.handleElement.is( event.target ) ) {
 
 			// The interaction is over; whether or not the click resulted in a drag,
 			// focus the element
 			this.element.trigger( "focus" );
 		}
 
 		return $.ui.mouse.prototype._mouseUp.call( this, event );
 	},
 
 	cancel: function() {
 
 		if ( this.helper.is( ".ui-draggable-dragging" ) ) {
 			this._mouseUp( new $.Event( "mouseup", { target: this.element[ 0 ] } ) );
 		} else {
 			this._clear();
 		}
 
 		return this;
 
 	},
 
 	_getHandle: function( event ) {
 		return this.options.handle ?
 			!!$( event.target ).closest( this.element.find( this.options.handle ) ).length :
 			true;
 	},
 
 	_setHandleClassName: function() {
 		this.handleElement = this.options.handle ?
 			this.element.find( this.options.handle ) : this.element;
 		this._addClass( this.handleElement, "ui-draggable-handle" );
 	},
 
 	_removeHandleClassName: function() {
 		this._removeClass( this.handleElement, "ui-draggable-handle" );
 	},
 
 	_createHelper: function( event ) {
 
 		var o = this.options,
 			helperIsFunction = $.isFunction( o.helper ),
 			helper = helperIsFunction ?
 				$( 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 ) );
 		}
 
 		// Http://bugs.jqueryui.com/ticket/9446
 		// a helper function can return the original element
 		// which wouldn't have been set to relative in _create
 		if ( helperIsFunction && helper[ 0 ] === this.element[ 0 ] ) {
 			this._setPositionRelative();
 		}
 
 		if ( helper[ 0 ] !== this.element[ 0 ] &&
 				!( /(fixed|absolute)/ ).test( helper.css( "position" ) ) ) {
 			helper.css( "position", "absolute" );
 		}
 
 		return helper;
 
 	},
 
 	_setPositionRelative: function() {
 		if ( !( /^(?:r|a|f)/ ).test( this.element.css( "position" ) ) ) {
 			this.element[ 0 ].style.position = "relative";
 		}
 	},
 
 	_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;
 		}
 	},
 
 	_isRootNode: function( element ) {
 		return ( /(html|body)/i ).test( element.tagName ) || element === this.document[ 0 ];
 	},
 
 	_getParentOffset: function() {
 
 		//Get the offsetParent and cache its position
 		var po = this.offsetParent.offset(),
 			document = this.document[ 0 ];
 
 		// 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._isRootNode( this.offsetParent[ 0 ] ) ) {
 			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" ) {
 			return { top: 0, left: 0 };
 		}
 
 		var p = this.element.position(),
 			scrollIsRootNode = this._isRootNode( this.scrollParent[ 0 ] );
 
 		return {
 			top: p.top - ( parseInt( this.helper.css( "top" ), 10 ) || 0 ) +
 				( !scrollIsRootNode ? this.scrollParent.scrollTop() : 0 ),
 			left: p.left - ( parseInt( this.helper.css( "left" ), 10 ) || 0 ) +
 				( !scrollIsRootNode ? this.scrollParent.scrollLeft() : 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 isUserScrollable, c, ce,
 			o = this.options,
 			document = this.document[ 0 ];
 
 		this.relativeContainer = null;
 
 		if ( !o.containment ) {
 			this.containment = null;
 			return;
 		}
 
 		if ( o.containment === "window" ) {
 			this.containment = [
 				$( window ).scrollLeft() - this.offset.relative.left - this.offset.parent.left,
 				$( window ).scrollTop() - this.offset.relative.top - this.offset.parent.top,
 				$( window ).scrollLeft() + $( window ).width() -
 					this.helperProportions.width - this.margins.left,
 				$( window ).scrollTop() +
 					( $( window ).height() || document.body.parentNode.scrollHeight ) -
 					this.helperProportions.height - this.margins.top
 			];
 			return;
 		}
 
 		if ( o.containment === "document" ) {
 			this.containment = [
 				0,
 				0,
 				$( document ).width() - this.helperProportions.width - this.margins.left,
 				( $( document ).height() || document.body.parentNode.scrollHeight ) -
 					this.helperProportions.height - this.margins.top
 			];
 			return;
 		}
 
 		if ( o.containment.constructor === Array ) {
 			this.containment = o.containment;
 			return;
 		}
 
 		if ( o.containment === "parent" ) {
 			o.containment = this.helper[ 0 ].parentNode;
 		}
 
 		c = $( o.containment );
 		ce = c[ 0 ];
 
 		if ( !ce ) {
 			return;
 		}
 
 		isUserScrollable = /(scroll|auto)/.test( c.css( "overflow" ) );
 
 		this.containment = [
 			( parseInt( c.css( "borderLeftWidth" ), 10 ) || 0 ) +
 				( parseInt( c.css( "paddingLeft" ), 10 ) || 0 ),
 			( parseInt( c.css( "borderTopWidth" ), 10 ) || 0 ) +
 				( parseInt( c.css( "paddingTop" ), 10 ) || 0 ),
 			( isUserScrollable ? Math.max( ce.scrollWidth, ce.offsetWidth ) : ce.offsetWidth ) -
 				( parseInt( c.css( "borderRightWidth" ), 10 ) || 0 ) -
 				( parseInt( c.css( "paddingRight" ), 10 ) || 0 ) -
 				this.helperProportions.width -
 				this.margins.left -
 				this.margins.right,
 			( isUserScrollable ? Math.max( ce.scrollHeight, ce.offsetHeight ) : ce.offsetHeight ) -
 				( parseInt( c.css( "borderBottomWidth" ), 10 ) || 0 ) -
 				( parseInt( c.css( "paddingBottom" ), 10 ) || 0 ) -
 				this.helperProportions.height -
 				this.margins.top -
 				this.margins.bottom
 		];
 		this.relativeContainer = c;
 	},
 
 	_convertPositionTo: function( d, pos ) {
 
 		if ( !pos ) {
 			pos = this.position;
 		}
 
 		var mod = d === "absolute" ? 1 : -1,
 			scrollIsRootNode = this._isRootNode( this.scrollParent[ 0 ] );
 
 		return {
 			top: (
 
 				// The absolute mouse position
 				pos.top	+
 
 				// Only for relative positioned nodes: Relative offset from element to offset parent
 				this.offset.relative.top * mod +
 
 				// The offsetParent's offset without borders (offset + border)
 				this.offset.parent.top * mod -
 				( ( this.cssPosition === "fixed" ?
 					-this.offset.scroll.top :
 					( scrollIsRootNode ? 0 : this.offset.scroll.top ) ) * mod )
 			),
 			left: (
 
 				// The absolute mouse position
 				pos.left +
 
 				// Only for relative positioned nodes: Relative offset from element to offset parent
 				this.offset.relative.left * mod +
 
 				// The offsetParent's offset without borders (offset + border)
 				this.offset.parent.left * mod	-
 				( ( this.cssPosition === "fixed" ?
 					-this.offset.scroll.left :
 					( scrollIsRootNode ? 0 : this.offset.scroll.left ) ) * mod )
 			)
 		};
 
 	},
 
 	_generatePosition: function( event, constrainPosition ) {
 
 		var containment, co, top, left,
 			o = this.options,
 			scrollIsRootNode = this._isRootNode( this.scrollParent[ 0 ] ),
 			pageX = event.pageX,
 			pageY = event.pageY;
 
 		// Cache the scroll
 		if ( !scrollIsRootNode || !this.offset.scroll ) {
 			this.offset.scroll = {
 				top: this.scrollParent.scrollTop(),
 				left: this.scrollParent.scrollLeft()
 			};
 		}
 
 		/*
 		 * - Position constraining -
 		 * Constrain the position to a mix of grid, containment.
 		 */
 
 		// If we are not dragging yet, we won't check for options
 		if ( constrainPosition ) {
 			if ( this.containment ) {
 				if ( this.relativeContainer ) {
 					co = this.relativeContainer.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)
 				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;
 
 				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;
 			}
 
 			if ( o.axis === "y" ) {
 				pageX = this.originalPageX;
 			}
 
 			if ( o.axis === "x" ) {
 				pageY = this.originalPageY;
 			}
 		}
 
 		return {
 			top: (
 
 				// The absolute mouse position
 				pageY -
 
 				// Click offset (relative to the element)
 				this.offset.click.top -
 
 				// Only for relative positioned nodes: Relative offset from element to offset parent
 				this.offset.relative.top -
 
 				// The offsetParent's offset without borders (offset + border)
 				this.offset.parent.top +
 				( this.cssPosition === "fixed" ?
 					-this.offset.scroll.top :
 					( scrollIsRootNode ? 0 : this.offset.scroll.top ) )
 			),
 			left: (
 
 				// The absolute mouse position
 				pageX -
 
 				// Click offset (relative to the element)
 				this.offset.click.left -
 
 				// Only for relative positioned nodes: Relative offset from element to offset parent
 				this.offset.relative.left -
 
 				// The offsetParent's offset without borders (offset + border)
 				this.offset.parent.left +
 				( this.cssPosition === "fixed" ?
 					-this.offset.scroll.left :
 					( scrollIsRootNode ? 0 : this.offset.scroll.left ) )
 			)
 		};
 
 	},
 
 	_clear: function() {
 		this._removeClass( this.helper, "ui-draggable-dragging" );
 		if ( this.helper[ 0 ] !== this.element[ 0 ] && !this.cancelHelperRemoval ) {
 			this.helper.remove();
 		}
 		this.helper = null;
 		this.cancelHelperRemoval = false;
 		if ( this.destroyOnClear ) {
 			this.destroy();
 		}
 	},
 
 	// From now on bulk stuff - mainly helpers
 
 	_trigger: function( type, event, ui ) {
 		ui = ui || this._uiHash();
 		$.ui.plugin.call( this, type, [ event, ui, this ], true );
 
 		// Absolute position and offset (see #6884 ) have to be recalculated after plugins
 		if ( /^(drag|start|stop)/.test( type ) ) {
 			this.positionAbs = this._convertPositionTo( "absolute" );
 			ui.offset = this.positionAbs;
 		}
 		return $.Widget.prototype._trigger.call( this, type, event, ui );
 	},
 
 	plugins: {},
 
 	_uiHash: function() {
 		return {
 			helper: this.helper,
 			position: this.position,
 			originalPosition: this.originalPosition,
 			offset: this.positionAbs
 		};
 	}
 
 } );
 
 $.ui.plugin.add( "draggable", "connectToSortable", {
 	start: function( event, ui, draggable ) {
 		var uiSortable = $.extend( {}, ui, {
 			item: draggable.element
 		} );
 
 		draggable.sortables = [];
 		$( draggable.options.connectToSortable ).each( function() {
 			var sortable = $( this ).sortable( "instance" );
 
 			if ( sortable && !sortable.options.disabled ) {
 				draggable.sortables.push( sortable );
 
 				// RefreshPositions is called at drag start to refresh the containerCache
 				// which is used in drag. This ensures it's initialized and synchronized
 				// with any changes that might have happened on the page since initialization.
 				sortable.refreshPositions();
 				sortable._trigger( "activate", event, uiSortable );
 			}
 		} );
 	},
 	stop: function( event, ui, draggable ) {
 		var uiSortable = $.extend( {}, ui, {
 			item: draggable.element
 		} );
 
 		draggable.cancelHelperRemoval = false;
 
 		$.each( draggable.sortables, function() {
 			var sortable = this;
 
 			if ( sortable.isOver ) {
 				sortable.isOver = 0;
 
 				// Allow this sortable to handle removing the helper
 				draggable.cancelHelperRemoval = true;
 				sortable.cancelHelperRemoval = false;
 
 				// Use _storedCSS To restore properties in the sortable,
 				// as this also handles revert (#9675) since the draggable
 				// may have modified them in unexpected ways (#8809)
 				sortable._storedCSS = {
 					position: sortable.placeholder.css( "position" ),
 					top: sortable.placeholder.css( "top" ),
 					left: sortable.placeholder.css( "left" )
 				};
 
 				sortable._mouseStop( event );
 
 				// Once drag has ended, the sortable should return to using
 				// its original helper, not the shared helper from draggable
 				sortable.options.helper = sortable.options._helper;
 			} else {
 
 				// Prevent this Sortable from removing the helper.
 				// However, don't set the draggable to remove the helper
 				// either as another connected Sortable may yet handle the removal.
 				sortable.cancelHelperRemoval = true;
 
 				sortable._trigger( "deactivate", event, uiSortable );
 			}
 		} );
 	},
 	drag: function( event, ui, draggable ) {
 		$.each( draggable.sortables, function() {
 			var innermostIntersecting = false,
 				sortable = this;
 
 			// Copy over variables that sortable's _intersectsWith uses
 			sortable.positionAbs = draggable.positionAbs;
 			sortable.helperProportions = draggable.helperProportions;
 			sortable.offset.click = draggable.offset.click;
 
 			if ( sortable._intersectsWith( sortable.containerCache ) ) {
 				innermostIntersecting = true;
 
 				$.each( draggable.sortables, function() {
 
 					// Copy over variables that sortable's _intersectsWith uses
 					this.positionAbs = draggable.positionAbs;
 					this.helperProportions = draggable.helperProportions;
 					this.offset.click = draggable.offset.click;
 
 					if ( this !== sortable &&
 							this._intersectsWith( this.containerCache ) &&
 							$.contains( sortable.element[ 0 ], this.element[ 0 ] ) ) {
 						innermostIntersecting = false;
 					}
 
 					return innermostIntersecting;
 				} );
 			}
 
 			if ( innermostIntersecting ) {
 
 				// If it intersects, we use a little isOver variable and set it once,
 				// so that the move-in stuff gets fired only once.
 				if ( !sortable.isOver ) {
 					sortable.isOver = 1;
 
 					// Store draggable's parent in case we need to reappend to it later.
 					draggable._parent = ui.helper.parent();
 
 					sortable.currentItem = ui.helper
 						.appendTo( sortable.element )
 						.data( "ui-sortable-item", true );
 
 					// Store helper option to later restore it
 					sortable.options._helper = sortable.options.helper;
 
 					sortable.options.helper = function() {
 						return ui.helper[ 0 ];
 					};
 
 					// Fire the start events of the sortable with our passed browser event,
 					// and our own helper (so it doesn't create a new one)
 					event.target = sortable.currentItem[ 0 ];
 					sortable._mouseCapture( event, true );
 					sortable._mouseStart( event, true, true );
 
 					// Because the browser event is way off the new appended portlet,
 					// modify necessary variables to reflect the changes
 					sortable.offset.click.top = draggable.offset.click.top;
 					sortable.offset.click.left = draggable.offset.click.left;
 					sortable.offset.parent.left -= draggable.offset.parent.left -
 						sortable.offset.parent.left;
 					sortable.offset.parent.top -= draggable.offset.parent.top -
 						sortable.offset.parent.top;
 
 					draggable._trigger( "toSortable", event );
 
 					// Inform draggable that the helper is in a valid drop zone,
 					// used solely in the revert option to handle "valid/invalid".
 					draggable.dropped = sortable.element;
 
 					// Need to refreshPositions of all sortables in the case that
 					// adding to one sortable changes the location of the other sortables (#9675)
 					$.each( draggable.sortables, function() {
 						this.refreshPositions();
 					} );
 
 					// Hack so receive/update callbacks work (mostly)
 					draggable.currentItem = draggable.element;
 					sortable.fromOutside = draggable;
 				}
 
 				if ( sortable.currentItem ) {
 					sortable._mouseDrag( event );
 
 					// Copy the sortable's position because the draggable's can potentially reflect
 					// a relative position, while sortable is always absolute, which the dragged
 					// element has now become. (#8809)
 					ui.position = sortable.position;
 				}
 			} 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 ( sortable.isOver ) {
 
 					sortable.isOver = 0;
 					sortable.cancelHelperRemoval = true;
 
 					// Calling sortable's mouseStop would trigger a revert,
 					// so revert must be temporarily false until after mouseStop is called.
 					sortable.options._revert = sortable.options.revert;
 					sortable.options.revert = false;
 
 					sortable._trigger( "out", event, sortable._uiHash( sortable ) );
 					sortable._mouseStop( event, true );
 
 					// Restore sortable behaviors that were modfied
 					// when the draggable entered the sortable area (#9481)
 					sortable.options.revert = sortable.options._revert;
 					sortable.options.helper = sortable.options._helper;
 
 					if ( sortable.placeholder ) {
 						sortable.placeholder.remove();
 					}
 
 					// Restore and recalculate the draggable's offset considering the sortable
 					// may have modified them in unexpected ways. (#8809, #10669)
 					ui.helper.appendTo( draggable._parent );
 					draggable._refreshOffsets( event );
 					ui.position = draggable._generatePosition( event, true );
 
 					draggable._trigger( "fromSortable", event );
 
 					// Inform draggable that the helper is no longer in a valid drop zone
 					draggable.dropped = false;
 
 					// Need to refreshPositions of all sortables just in case removing
 					// from one sortable changes the location of other sortables (#9675)
 					$.each( draggable.sortables, function() {
 						this.refreshPositions();
 					} );
 				}
 			}
 		} );
 	}
 } );
 
 $.ui.plugin.add( "draggable", "cursor", {
 	start: function( event, ui, instance ) {
 		var t = $( "body" ),
 			o = instance.options;
 
 		if ( t.css( "cursor" ) ) {
 			o._cursor = t.css( "cursor" );
 		}
 		t.css( "cursor", o.cursor );
 	},
 	stop: function( event, ui, instance ) {
 		var o = instance.options;
 		if ( o._cursor ) {
 			$( "body" ).css( "cursor", o._cursor );
 		}
 	}
 } );
 
 $.ui.plugin.add( "draggable", "opacity", {
 	start: function( event, ui, instance ) {
 		var t = $( ui.helper ),
 			o = instance.options;
 		if ( t.css( "opacity" ) ) {
 			o._opacity = t.css( "opacity" );
 		}
 		t.css( "opacity", o.opacity );
 	},
 	stop: function( event, ui, instance ) {
 		var o = instance.options;
 		if ( o._opacity ) {
 			$( ui.helper ).css( "opacity", o._opacity );
 		}
 	}
 } );
 
 $.ui.plugin.add( "draggable", "scroll", {
 	start: function( event, ui, i ) {
 		if ( !i.scrollParentNotHidden ) {
 			i.scrollParentNotHidden = i.helper.scrollParent( false );
 		}
 
 		if ( i.scrollParentNotHidden[ 0 ] !== i.document[ 0 ] &&
 				i.scrollParentNotHidden[ 0 ].tagName !== "HTML" ) {
 			i.overflowOffset = i.scrollParentNotHidden.offset();
 		}
 	},
 	drag: function( event, ui, i  ) {
 
 		var o = i.options,
 			scrolled = false,
 			scrollParent = i.scrollParentNotHidden[ 0 ],
 			document = i.document[ 0 ];
 
 		if ( scrollParent !== document && scrollParent.tagName !== "HTML" ) {
 			if ( !o.axis || o.axis !== "x" ) {
 				if ( ( i.overflowOffset.top + scrollParent.offsetHeight ) - event.pageY <
 						o.scrollSensitivity ) {
 					scrollParent.scrollTop = scrolled = scrollParent.scrollTop + o.scrollSpeed;
 				} else if ( event.pageY - i.overflowOffset.top < o.scrollSensitivity ) {
 					scrollParent.scrollTop = scrolled = scrollParent.scrollTop - o.scrollSpeed;
 				}
 			}
 
 			if ( !o.axis || o.axis !== "y" ) {
 				if ( ( i.overflowOffset.left + scrollParent.offsetWidth ) - event.pageX <
 						o.scrollSensitivity ) {
 					scrollParent.scrollLeft = scrolled = scrollParent.scrollLeft + o.scrollSpeed;
 				} else if ( event.pageX - i.overflowOffset.left < o.scrollSensitivity ) {
 					scrollParent.scrollLeft = scrolled = scrollParent.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, i ) {
 
 		var o = i.options;
 
 		i.snapElements = [];
 
 		$( o.snap.constructor !== String ? ( o.snap.items || ":data(ui-draggable)" ) : o.snap )
 			.each( function() {
 				var $t = $( this ),
 					$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, inst ) {
 
 		var ts, bs, ls, rs, l, r, t, b, i, first,
 			o = inst.options,
 			d = o.snapTolerance,
 			x1 = ui.offset.left, x2 = x1 + inst.helperProportions.width,
 			y1 = ui.offset.top, y2 = y1 + inst.helperProportions.height;
 
 		for ( i = inst.snapElements.length - 1; i >= 0; i-- ) {
 
 			l = inst.snapElements[ i ].left - inst.margins.left;
 			r = l + inst.snapElements[ i ].width;
 			t = inst.snapElements[ i ].top - inst.margins.top;
 			b = t + inst.snapElements[ i ].height;
 
 			if ( x2 < l - d || x1 > r + d || y2 < t - d || y1 > b + d ||
 					!$.contains( inst.snapElements[ i ].item.ownerDocument,
 					inst.snapElements[ i ].item ) ) {
 				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" ) {
 				ts = Math.abs( t - y2 ) <= d;
 				bs = Math.abs( b - y1 ) <= d;
 				ls = Math.abs( l - x2 ) <= d;
 				rs = Math.abs( r - x1 ) <= d;
 				if ( ts ) {
 					ui.position.top = inst._convertPositionTo( "relative", {
 						top: t - inst.helperProportions.height,
 						left: 0
 					} ).top;
 				}
 				if ( bs ) {
 					ui.position.top = inst._convertPositionTo( "relative", {
 						top: b,
 						left: 0
 					} ).top;
 				}
 				if ( ls ) {
 					ui.position.left = inst._convertPositionTo( "relative", {
 						top: 0,
 						left: l - inst.helperProportions.width
 					} ).left;
 				}
 				if ( rs ) {
 					ui.position.left = inst._convertPositionTo( "relative", {
 						top: 0,
 						left: r
 					} ).left;
 				}
 			}
 
 			first = ( ts || bs || ls || rs );
 
 			if ( o.snapMode !== "outer" ) {
 				ts = Math.abs( t - y1 ) <= d;
 				bs = Math.abs( b - y2 ) <= d;
 				ls = Math.abs( l - x1 ) <= d;
 				rs = Math.abs( r - x2 ) <= d;
 				if ( ts ) {
 					ui.position.top = inst._convertPositionTo( "relative", {
 						top: t,
 						left: 0
 					} ).top;
 				}
 				if ( bs ) {
 					ui.position.top = inst._convertPositionTo( "relative", {
 						top: b - inst.helperProportions.height,
 						left: 0
 					} ).top;
 				}
 				if ( ls ) {
 					ui.position.left = inst._convertPositionTo( "relative", {
 						top: 0,
 						left: l
 					} ).left;
 				}
 				if ( rs ) {
 					ui.position.left = inst._convertPositionTo( "relative", {
 						top: 0,
 						left: r - inst.helperProportions.width
 					} ).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, instance ) {
 		var min,
 			o = instance.options,
 			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; }
 
 		min = parseInt( $( group[ 0 ] ).css( "zIndex" ), 10 ) || 0;
 		$( group ).each( function( i ) {
 			$( this ).css( "zIndex", min + i );
 		} );
 		this.css( "zIndex", ( min + group.length ) );
 	}
 } );
 
 $.ui.plugin.add( "draggable", "zIndex", {
 	start: function( event, ui, instance ) {
 		var t = $( ui.helper ),
 			o = instance.options;
 
 		if ( t.css( "zIndex" ) ) {
 			o._zIndex = t.css( "zIndex" );
 		}
 		t.css( "zIndex", o.zIndex );
 	},
 	stop: function( event, ui, instance ) {
 		var o = instance.options;
 
 		if ( o._zIndex ) {
 			$( ui.helper ).css( "zIndex", o._zIndex );
 		}
 	}
 } );
 
 var widgetsDraggable = $.ui.draggable;
 
 
 /*!
  * jQuery UI Droppable 1.12.1
  * http://jqueryui.com
  *
  * Copyright jQuery Foundation and other contributors
  * Released under the MIT license.
  * http://jquery.org/license
  */
 
 //>>label: Droppable
 //>>group: Interactions
 //>>description: Enables drop targets for draggable elements.
 //>>docs: http://api.jqueryui.com/droppable/
 //>>demos: http://jqueryui.com/droppable/
 
 
 
 $.widget( "ui.droppable", {
 	version: "1.12.1",
 	widgetEventPrefix: "drop",
 	options: {
 		accept: "*",
 		addClasses: true,
 		greedy: false,
 		scope: "default",
 		tolerance: "intersect",
 
 		// Callbacks
 		activate: null,
 		deactivate: null,
 		drop: null,
 		out: null,
 		over: null
 	},
 	_create: function() {
 
 		var proportions,
 			o = this.options,
 			accept = o.accept;
 
 		this.isover = false;
 		this.isout = true;
 
 		this.accept = $.isFunction( accept ) ? accept : function( d ) {
 			return d.is( accept );
 		};
 
 		this.proportions = function( /* valueToWrite */ ) {
 			if ( arguments.length ) {
 
 				// Store the droppable's proportions
 				proportions = arguments[ 0 ];
 			} else {
 
 				// Retrieve or derive the droppable's proportions
 				return proportions ?
 					proportions :
 					proportions = {
 						width: this.element[ 0 ].offsetWidth,
 						height: this.element[ 0 ].offsetHeight
 					};
 			}
 		};
 
 		this._addToManager( o.scope );
 
 		o.addClasses && this._addClass( "ui-droppable" );
 
 	},
 
 	_addToManager: function( scope ) {
 
 		// Add the reference and positions to the manager
 		$.ui.ddmanager.droppables[ scope ] = $.ui.ddmanager.droppables[ scope ] || [];
 		$.ui.ddmanager.droppables[ scope ].push( this );
 	},
 
 	_splice: function( drop ) {
 		var i = 0;
 		for ( ; i < drop.length; i++ ) {
 			if ( drop[ i ] === this ) {
 				drop.splice( i, 1 );
 			}
 		}
 	},
 
 	_destroy: function() {
 		var drop = $.ui.ddmanager.droppables[ this.options.scope ];
 
 		this._splice( drop );
 	},
 
 	_setOption: function( key, value ) {
 
 		if ( key === "accept" ) {
 			this.accept = $.isFunction( value ) ? value : function( d ) {
 				return d.is( value );
 			};
 		} else if ( key === "scope" ) {
 			var drop = $.ui.ddmanager.droppables[ this.options.scope ];
 
 			this._splice( drop );
 			this._addToManager( value );
 		}
 
 		this._super( key, value );
 	},
 
 	_activate: function( event ) {
 		var draggable = $.ui.ddmanager.current;
 
 		this._addActiveClass();
 		if ( draggable ) {
 			this._trigger( "activate", event, this.ui( draggable ) );
 		}
 	},
 
 	_deactivate: function( event ) {
 		var draggable = $.ui.ddmanager.current;
 
 		this._removeActiveClass();
 		if ( draggable ) {
 			this._trigger( "deactivate", event, this.ui( draggable ) );
 		}
 	},
 
 	_over: function( event ) {
 
 		var draggable = $.ui.ddmanager.current;
 
 		// Bail if draggable and droppable are same element
 		if ( !draggable || ( draggable.currentItem ||
 				draggable.element )[ 0 ] === this.element[ 0 ] ) {
 			return;
 		}
 
 		if ( this.accept.call( this.element[ 0 ], ( draggable.currentItem ||
 				draggable.element ) ) ) {
 			this._addHoverClass();
 			this._trigger( "over", event, this.ui( draggable ) );
 		}
 
 	},
 
 	_out: function( event ) {
 
 		var draggable = $.ui.ddmanager.current;
 
 		// Bail if draggable and droppable are same element
 		if ( !draggable || ( draggable.currentItem ||
 				draggable.element )[ 0 ] === this.element[ 0 ] ) {
 			return;
 		}
 
 		if ( this.accept.call( this.element[ 0 ], ( draggable.currentItem ||
 				draggable.element ) ) ) {
 			this._removeHoverClass();
 			this._trigger( "out", event, this.ui( draggable ) );
 		}
 
 	},
 
 	_drop: function( event, custom ) {
 
 		var draggable = custom || $.ui.ddmanager.current,
 			childrenIntersection = false;
 
 		// Bail if draggable and droppable are same element
 		if ( !draggable || ( draggable.currentItem ||
 				draggable.element )[ 0 ] === this.element[ 0 ] ) {
 			return false;
 		}
 
 		this.element
 			.find( ":data(ui-droppable)" )
 			.not( ".ui-draggable-dragging" )
 			.each( function() {
 				var inst = $( this ).droppable( "instance" );
 				if (
 					inst.options.greedy &&
 					!inst.options.disabled &&
 					inst.options.scope === draggable.options.scope &&
 					inst.accept.call(
 						inst.element[ 0 ], ( draggable.currentItem || draggable.element )
 					) &&
 					intersect(
 						draggable,
 						$.extend( inst, { offset: inst.element.offset() } ),
 						inst.options.tolerance, event
 					)
 				) {
 					childrenIntersection = true;
 					return false; }
 			} );
 		if ( childrenIntersection ) {
 			return false;
 		}
 
 		if ( this.accept.call( this.element[ 0 ],
 				( draggable.currentItem || draggable.element ) ) ) {
 			this._removeActiveClass();
 			this._removeHoverClass();
 
 			this._trigger( "drop", event, this.ui( draggable ) );
 			return this.element;
 		}
 
 		return false;
 
 	},
 
 	ui: function( c ) {
 		return {
 			draggable: ( c.currentItem || c.element ),
 			helper: c.helper,
 			position: c.position,
 			offset: c.positionAbs
 		};
 	},
 
 	// Extension points just to make backcompat sane and avoid duplicating logic
 	// TODO: Remove in 1.13 along with call to it below
 	_addHoverClass: function() {
 		this._addClass( "ui-droppable-hover" );
 	},
 
 	_removeHoverClass: function() {
 		this._removeClass( "ui-droppable-hover" );
 	},
 
 	_addActiveClass: function() {
 		this._addClass( "ui-droppable-active" );
 	},
 
 	_removeActiveClass: function() {
 		this._removeClass( "ui-droppable-active" );
 	}
 } );
 
 var intersect = $.ui.intersect = ( function() {
 	function isOverAxis( x, reference, size ) {
 		return ( x >= reference ) && ( x < ( reference + size ) );
 	}
 
 	return function( draggable, droppable, toleranceMode, event ) {
 
 		if ( !droppable.offset ) {
 			return false;
 		}
 
 		var x1 = ( draggable.positionAbs ||
 				draggable.position.absolute ).left + draggable.margins.left,
 			y1 = ( draggable.positionAbs ||
 				draggable.position.absolute ).top + draggable.margins.top,
 			x2 = x1 + draggable.helperProportions.width,
 			y2 = y1 + draggable.helperProportions.height,
 			l = droppable.offset.left,
 			t = droppable.offset.top,
 			r = l + droppable.proportions().width,
 			b = t + droppable.proportions().height;
 
 		switch ( toleranceMode ) {
 		case "fit":
 			return ( l <= x1 && x2 <= r && t <= y1 && y2 <= b );
 		case "intersect":
 			return ( l < x1 + ( draggable.helperProportions.width / 2 ) && // Right Half
 				x2 - ( draggable.helperProportions.width / 2 ) < r && // Left Half
 				t < y1 + ( draggable.helperProportions.height / 2 ) && // Bottom Half
 				y2 - ( draggable.helperProportions.height / 2 ) < b ); // Top Half
 		case "pointer":
 			return isOverAxis( event.pageY, t, droppable.proportions().height ) &&
 				isOverAxis( event.pageX, l, droppable.proportions().width );
 		case "touch":
 			return (
 				( y1 >= t && y1 <= b ) || // Top edge touching
 				( y2 >= t && y2 <= b ) || // Bottom edge touching
 				( y1 < t && y2 > b ) // Surrounded vertically
 			) && (
 				( x1 >= l && x1 <= r ) || // Left edge touching
 				( x2 >= l && x2 <= r ) || // Right edge touching
 				( x1 < l && x2 > r ) // Surrounded horizontally
 			);
 		default:
 			return false;
 		}
 	};
 } )();
 
 /*
 	This manager tracks offsets of draggables and droppables
 */
 $.ui.ddmanager = {
 	current: null,
 	droppables: { "default": [] },
 	prepareOffsets: function( t, event ) {
 
 		var i, j,
 			m = $.ui.ddmanager.droppables[ t.options.scope ] || [],
 			type = event ? event.type : null, // workaround for #2317
 			list = ( t.currentItem || t.element ).find( ":data(ui-droppable)" ).addBack();
 
 		droppablesLoop: for ( i = 0; i < m.length; i++ ) {
 
 			// No disabled and non-accepted
 			if ( m[ i ].options.disabled || ( t && !m[ i ].accept.call( m[ i ].element[ 0 ],
 					( t.currentItem || t.element ) ) ) ) {
 				continue;
 			}
 
 			// Filter out elements in the current dragged item
 			for ( j = 0; j < list.length; j++ ) {
 				if ( list[ j ] === m[ i ].element[ 0 ] ) {
 					m[ i ].proportions().height = 0;
 					continue droppablesLoop;
 				}
 			}
 
 			m[ i ].visible = m[ i ].element.css( "display" ) !== "none";
 			if ( !m[ i ].visible ) {
 				continue;
 			}
 
 			// Activate the droppable if used directly from draggables
 			if ( type === "mousedown" ) {
 				m[ i ]._activate.call( m[ i ], event );
 			}
 
 			m[ i ].offset = m[ i ].element.offset();
 			m[ i ].proportions( {
 				width: m[ i ].element[ 0 ].offsetWidth,
 				height: m[ i ].element[ 0 ].offsetHeight
 			} );
 
 		}
 
 	},
 	drop: function( draggable, event ) {
 
 		var dropped = false;
 
 		// Create a copy of the droppables in case the list changes during the drop (#9116)
 		$.each( ( $.ui.ddmanager.droppables[ draggable.options.scope ] || [] ).slice(), function() {
 
 			if ( !this.options ) {
 				return;
 			}
 			if ( !this.options.disabled && this.visible &&
 					intersect( draggable, this, this.options.tolerance, event ) ) {
 				dropped = this._drop.call( this, event ) || dropped;
 			}
 
 			if ( !this.options.disabled && this.visible && this.accept.call( this.element[ 0 ],
 					( draggable.currentItem || draggable.element ) ) ) {
 				this.isout = true;
 				this.isover = false;
 				this._deactivate.call( this, event );
 			}
 
 		} );
 		return dropped;
 
 	},
 	dragStart: function( draggable, event ) {
 
 		// Listen for scrolling so that if the dragging causes scrolling the position of the
 		// droppables can be recalculated (see #5003)
 		draggable.element.parentsUntil( "body" ).on( "scroll.droppable", function() {
 			if ( !draggable.options.refreshPositions ) {
 				$.ui.ddmanager.prepareOffsets( draggable, event );
 			}
 		} );
 	},
 	drag: function( draggable, event ) {
 
 		// If you have a highly dynamic page, you might try this option. It renders positions
 		// every time you move the mouse.
 		if ( draggable.options.refreshPositions ) {
 			$.ui.ddmanager.prepareOffsets( draggable, event );
 		}
 
 		// Run through all droppables and check their positions based on specific tolerance options
 		$.each( $.ui.ddmanager.droppables[ draggable.options.scope ] || [], function() {
 
 			if ( this.options.disabled || this.greedyChild || !this.visible ) {
 				return;
 			}
 
 			var parentInstance, scope, parent,
 				intersects = intersect( draggable, this, this.options.tolerance, event ),
 				c = !intersects && this.isover ?
 					"isout" :
 					( intersects && !this.isover ? "isover" : null );
 			if ( !c ) {
 				return;
 			}
 
 			if ( this.options.greedy ) {
 
 				// find droppable parents with same scope
 				scope = this.options.scope;
 				parent = this.element.parents( ":data(ui-droppable)" ).filter( function() {
 					return $( this ).droppable( "instance" ).options.scope === scope;
 				} );
 
 				if ( parent.length ) {
 					parentInstance = $( parent[ 0 ] ).droppable( "instance" );
 					parentInstance.greedyChild = ( c === "isover" );
 				}
 			}
 
 			// We just moved into a greedy child
 			if ( parentInstance && c === "isover" ) {
 				parentInstance.isover = false;
 				parentInstance.isout = true;
 				parentInstance._out.call( parentInstance, event );
 			}
 
 			this[ c ] = true;
 			this[ c === "isout" ? "isover" : "isout" ] = false;
 			this[ c === "isover" ? "_over" : "_out" ].call( this, event );
 
 			// We just moved out of a greedy child
 			if ( parentInstance && c === "isout" ) {
 				parentInstance.isout = false;
 				parentInstance.isover = true;
 				parentInstance._over.call( parentInstance, event );
 			}
 		} );
 
 	},
 	dragStop: function( draggable, event ) {
 		draggable.element.parentsUntil( "body" ).off( "scroll.droppable" );
 
 		// Call prepareOffsets one final time since IE does not fire return scroll events when
 		// overflow was caused by drag (see #5003)
 		if ( !draggable.options.refreshPositions ) {
 			$.ui.ddmanager.prepareOffsets( draggable, event );
 		}
 	}
 };
 
 // DEPRECATED
 // TODO: switch return back to widget declaration at top of file when this is removed
 if ( $.uiBackCompat !== false ) {
 
 	// Backcompat for activeClass and hoverClass options
 	$.widget( "ui.droppable", $.ui.droppable, {
 		options: {
 			hoverClass: false,
 			activeClass: false
 		},
 		_addActiveClass: function() {
 			this._super();
 			if ( this.options.activeClass ) {
 				this.element.addClass( this.options.activeClass );
 			}
 		},
 		_removeActiveClass: function() {
 			this._super();
 			if ( this.options.activeClass ) {
 				this.element.removeClass( this.options.activeClass );
 			}
 		},
 		_addHoverClass: function() {
 			this._super();
 			if ( this.options.hoverClass ) {
 				this.element.addClass( this.options.hoverClass );
 			}
 		},
 		_removeHoverClass: function() {
 			this._super();
 			if ( this.options.hoverClass ) {
 				this.element.removeClass( this.options.hoverClass );
 			}
 		}
 	} );
 }
 
 var widgetsDroppable = $.ui.droppable;
 
 
 /*!
  * jQuery UI Sortable 1.12.1
  * http://jqueryui.com
  *
  * Copyright jQuery Foundation and other contributors
  * Released under the MIT license.
  * http://jquery.org/license
  */
 
 //>>label: Sortable
 //>>group: Interactions
 //>>description: Enables items in a list to be sorted using the mouse.
 //>>docs: http://api.jqueryui.com/sortable/
 //>>demos: http://jqueryui.com/sortable/
 //>>css.structure: ../../themes/base/sortable.css
 
 
 
 var widgetsSortable = $.widget( "ui.sortable", $.ui.mouse, {
 	version: "1.12.1",
 	widgetEventPrefix: "sort",
 	ready: false,
 	options: {
 		appendTo: "parent",
 		axis: false,
 		connectWith: false,
 		containment: false,
 		cursor: "auto",
 		cursorAt: false,
 		dropOnEmpty: true,
 		forcePlaceholderSize: false,
 		forceHelperSize: false,
 		grid: false,
 		handle: false,
 		helper: "original",
 		items: "> *",
 		opacity: false,
 		placeholder: false,
 		revert: false,
 		scroll: true,
 		scrollSensitivity: 20,
 		scrollSpeed: 20,
 		scope: "default",
 		tolerance: "intersect",
 		zIndex: 1000,
 
 		// Callbacks
 		activate: null,
 		beforeStop: null,
 		change: null,
 		deactivate: null,
 		out: null,
 		over: null,
 		receive: null,
 		remove: null,
 		sort: null,
 		start: null,
 		stop: null,
 		update: null
 	},
 
 	_isOverAxis: function( x, reference, size ) {
 		return ( x >= reference ) && ( x < ( reference + size ) );
 	},
 
 	_isFloating: function( item ) {
 		return ( /left|right/ ).test( item.css( "float" ) ) ||
 			( /inline|table-cell/ ).test( item.css( "display" ) );
 	},
 
 	_create: function() {
 		this.containerCache = {};
 		this._addClass( "ui-sortable" );
 
 		//Get the items
 		this.refresh();
 
 		//Let's determine the parent's offset
 		this.offset = this.element.offset();
 
 		//Initialize mouse events for interaction
 		this._mouseInit();
 
 		this._setHandleClassName();
 
 		//We're ready to go
 		this.ready = true;
 
 	},
 
 	_setOption: function( key, value ) {
 		this._super( key, value );
 
 		if ( key === "handle" ) {
 			this._setHandleClassName();
 		}
 	},
 
 	_setHandleClassName: function() {
 		var that = this;
 		this._removeClass( this.element.find( ".ui-sortable-handle" ), "ui-sortable-handle" );
 		$.each( this.items, function() {
 			that._addClass(
 				this.instance.options.handle ?
 					this.item.find( this.instance.options.handle ) :
 					this.item,
 				"ui-sortable-handle"
 			);
 		} );
 	},
 
 	_destroy: function() {
 		this._mouseDestroy();
 
 		for ( var i = this.items.length - 1; i >= 0; i-- ) {
 			this.items[ i ].item.removeData( this.widgetName + "-item" );
 		}
 
 		return this;
 	},
 
 	_mouseCapture: function( event, overrideHandle ) {
 		var currentItem = null,
 			validHandle = false,
 			that = this;
 
 		if ( this.reverting ) {
 			return false;
 		}
 
 		if ( this.options.disabled || this.options.type === "static" ) {
 			return false;
 		}
 
 		//We have to refresh the items data once first
 		this._refreshItems( event );
 
 		//Find out if the clicked node (or one of its parents) is a actual item in this.items
 		$( event.target ).parents().each( function() {
 			if ( $.data( this, that.widgetName + "-item" ) === that ) {
 				currentItem = $( this );
 				return false;
 			}
 		} );
 		if ( $.data( event.target, that.widgetName + "-item" ) === that ) {
 			currentItem = $( event.target );
 		}
 
 		if ( !currentItem ) {
 			return false;
 		}
 		if ( this.options.handle && !overrideHandle ) {
 			$( this.options.handle, currentItem ).find( "*" ).addBack().each( function() {
 				if ( this === event.target ) {
 					validHandle = true;
 				}
 			} );
 			if ( !validHandle ) {
 				return false;
 			}
 		}
 
 		this.currentItem = currentItem;
 		this._removeCurrentsFromItems();
 		return true;
 
 	},
 
 	_mouseStart: function( event, overrideHandle, noActivation ) {
 
 		var i, body,
 			o = this.options;
 
 		this.currentContainer = this;
 
 		//We only need to call refreshPositions, because the refreshItems call has been moved to
 		// mouseCapture
 		this.refreshPositions();
 
 		//Create and append the visible helper
 		this.helper = this._createHelper( event );
 
 		//Cache the helper size
 		this._cacheHelperProportions();
 
 		/*
 		 * - Position generation -
 		 * This block generates everything position related - it's the core of draggables.
 		 */
 
 		//Cache the margins of the original element
 		this._cacheMargins();
 
 		//Get the next scrolling parent
 		this.scrollParent = this.helper.scrollParent();
 
 		//The element's absolute position on the page minus margins
 		this.offset = this.currentItem.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(),
 
 			// This is a relative to absolute position minus the actual position calculation -
 			// only used for relative positioned helper
 			relative: this._getRelativeOffset()
 		} );
 
 		// Only after we got the offset, we can change the helper's position to absolute
 		// TODO: Still need to figure out a way to make relative sorting possible
 		this.helper.css( "position", "absolute" );
 		this.cssPosition = this.helper.css( "position" );
 
 		//Generate the original position
 		this.originalPosition = 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 ) );
 
 		//Cache the former DOM position
 		this.domPosition = {
 			prev: this.currentItem.prev()[ 0 ],
 			parent: this.currentItem.parent()[ 0 ]
 		};
 
 		// If the helper is not the original, hide the original so it's not playing any role during
 		// the drag, won't cause anything bad this way
 		if ( this.helper[ 0 ] !== this.currentItem[ 0 ] ) {
 			this.currentItem.hide();
 		}
 
 		//Create the placeholder
 		this._createPlaceholder();
 
 		//Set a containment if given in the options
 		if ( o.containment ) {
 			this._setContainment();
 		}
 
 		if ( o.cursor && o.cursor !== "auto" ) { // cursor option
 			body = this.document.find( "body" );
 
 			// Support: IE
 			this.storedCursor = body.css( "cursor" );
 			body.css( "cursor", o.cursor );
 
 			this.storedStylesheet =
 				$( "<style>*{ cursor: " + o.cursor + " !important; }</style>" ).appendTo( body );
 		}
 
 		if ( o.opacity ) { // opacity option
 			if ( this.helper.css( "opacity" ) ) {
 				this._storedOpacity = this.helper.css( "opacity" );
 			}
 			this.helper.css( "opacity", o.opacity );
 		}
 
 		if ( o.zIndex ) { // zIndex option
 			if ( this.helper.css( "zIndex" ) ) {
 				this._storedZIndex = this.helper.css( "zIndex" );
 			}
 			this.helper.css( "zIndex", o.zIndex );
 		}
 
 		//Prepare scrolling
 		if ( this.scrollParent[ 0 ] !== this.document[ 0 ] &&
 				this.scrollParent[ 0 ].tagName !== "HTML" ) {
 			this.overflowOffset = this.scrollParent.offset();
 		}
 
 		//Call callbacks
 		this._trigger( "start", event, this._uiHash() );
 
 		//Recache the helper size
 		if ( !this._preserveHelperProportions ) {
 			this._cacheHelperProportions();
 		}
 
 		//Post "activate" events to possible containers
 		if ( !noActivation ) {
 			for ( i = this.containers.length - 1; i >= 0; i-- ) {
 				this.containers[ i ]._trigger( "activate", event, this._uiHash( this ) );
 			}
 		}
 
 		//Prepare possible droppables
 		if ( $.ui.ddmanager ) {
 			$.ui.ddmanager.current = this;
 		}
 
 		if ( $.ui.ddmanager && !o.dropBehaviour ) {
 			$.ui.ddmanager.prepareOffsets( this, event );
 		}
 
 		this.dragging = true;
 
 		this._addClass( this.helper, "ui-sortable-helper" );
 
 		// Execute the drag once - this causes the helper not to be visiblebefore getting its
 		// correct position
 		this._mouseDrag( event );
 		return true;
 
 	},
 
 	_mouseDrag: function( event ) {
 		var i, item, itemElement, intersection,
 			o = this.options,
 			scrolled = false;
 
 		//Compute the helpers position
 		this.position = this._generatePosition( event );
 		this.positionAbs = this._convertPositionTo( "absolute" );
 
 		if ( !this.lastPositionAbs ) {
 			this.lastPositionAbs = this.positionAbs;
 		}
 
 		//Do scrolling
 		if ( this.options.scroll ) {
 			if ( this.scrollParent[ 0 ] !== this.document[ 0 ] &&
 					this.scrollParent[ 0 ].tagName !== "HTML" ) {
 
 				if ( ( this.overflowOffset.top + this.scrollParent[ 0 ].offsetHeight ) -
 						event.pageY < o.scrollSensitivity ) {
 					this.scrollParent[ 0 ].scrollTop =
 						scrolled = this.scrollParent[ 0 ].scrollTop + o.scrollSpeed;
 				} else if ( event.pageY - this.overflowOffset.top < o.scrollSensitivity ) {
 					this.scrollParent[ 0 ].scrollTop =
 						scrolled = this.scrollParent[ 0 ].scrollTop - o.scrollSpeed;
 				}
 
 				if ( ( this.overflowOffset.left + this.scrollParent[ 0 ].offsetWidth ) -
 						event.pageX < o.scrollSensitivity ) {
 					this.scrollParent[ 0 ].scrollLeft = scrolled =
 						this.scrollParent[ 0 ].scrollLeft + o.scrollSpeed;
 				} else if ( event.pageX - this.overflowOffset.left < o.scrollSensitivity ) {
 					this.scrollParent[ 0 ].scrollLeft = scrolled =
 						this.scrollParent[ 0 ].scrollLeft - o.scrollSpeed;
 				}
 
 			} else {
 
 				if ( event.pageY - this.document.scrollTop() < o.scrollSensitivity ) {
 					scrolled = this.document.scrollTop( this.document.scrollTop() - o.scrollSpeed );
 				} else if ( this.window.height() - ( event.pageY - this.document.scrollTop() ) <
 						o.scrollSensitivity ) {
 					scrolled = this.document.scrollTop( this.document.scrollTop() + o.scrollSpeed );
 				}
 
 				if ( event.pageX - this.document.scrollLeft() < o.scrollSensitivity ) {
 					scrolled = this.document.scrollLeft(
 						this.document.scrollLeft() - o.scrollSpeed
 					);
 				} else if ( this.window.width() - ( event.pageX - this.document.scrollLeft() ) <
 						o.scrollSensitivity ) {
 					scrolled = this.document.scrollLeft(
 						this.document.scrollLeft() + o.scrollSpeed
 					);
 				}
 
 			}
 
 			if ( scrolled !== false && $.ui.ddmanager && !o.dropBehaviour ) {
 				$.ui.ddmanager.prepareOffsets( this, event );
 			}
 		}
 
 		//Regenerate the absolute position used for position checks
 		this.positionAbs = this._convertPositionTo( "absolute" );
 
 		//Set the helper 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";
 		}
 
 		//Rearrange
 		for ( i = this.items.length - 1; i >= 0; i-- ) {
 
 			//Cache variables and intersection, continue if no intersection
 			item = this.items[ i ];
 			itemElement = item.item[ 0 ];
 			intersection = this._intersectsWithPointer( item );
 			if ( !intersection ) {
 				continue;
 			}
 
 			// Only put the placeholder inside the current Container, skip all
 			// items from other containers. This works because when moving
 			// an item from one container to another the
 			// currentContainer is switched before the placeholder is moved.
 			//
 			// Without this, moving items in "sub-sortables" can cause
 			// the placeholder to jitter between the outer and inner container.
 			if ( item.instance !== this.currentContainer ) {
 				continue;
 			}
 
 			// Cannot intersect with itself
 			// no useless actions that have been done before
 			// no action if the item moved is the parent of the item checked
 			if ( itemElement !== this.currentItem[ 0 ] &&
 				this.placeholder[ intersection === 1 ? "next" : "prev" ]()[ 0 ] !== itemElement &&
 				!$.contains( this.placeholder[ 0 ], itemElement ) &&
 				( this.options.type === "semi-dynamic" ?
 					!$.contains( this.element[ 0 ], itemElement ) :
 					true
 				)
 			) {
 
 				this.direction = intersection === 1 ? "down" : "up";
 
 				if ( this.options.tolerance === "pointer" || this._intersectsWithSides( item ) ) {
 					this._rearrange( event, item );
 				} else {
 					break;
 				}
 
 				this._trigger( "change", event, this._uiHash() );
 				break;
 			}
 		}
 
 		//Post events to containers
 		this._contactContainers( event );
 
 		//Interconnect with droppables
 		if ( $.ui.ddmanager ) {
 			$.ui.ddmanager.drag( this, event );
 		}
 
 		//Call callbacks
 		this._trigger( "sort", event, this._uiHash() );
 
 		this.lastPositionAbs = this.positionAbs;
 		return false;
 
 	},
 
 	_mouseStop: function( event, noPropagation ) {
 
 		if ( !event ) {
 			return;
 		}
 
 		//If we are using droppables, inform the manager about the drop
 		if ( $.ui.ddmanager && !this.options.dropBehaviour ) {
 			$.ui.ddmanager.drop( this, event );
 		}
 
 		if ( this.options.revert ) {
 			var that = this,
 				cur = this.placeholder.offset(),
 				axis = this.options.axis,
 				animation = {};
 
 			if ( !axis || axis === "x" ) {
 				animation.left = cur.left - this.offset.parent.left - this.margins.left +
 					( this.offsetParent[ 0 ] === this.document[ 0 ].body ?
 						0 :
 						this.offsetParent[ 0 ].scrollLeft
 					);
 			}
 			if ( !axis || axis === "y" ) {
 				animation.top = cur.top - this.offset.parent.top - this.margins.top +
 					( this.offsetParent[ 0 ] === this.document[ 0 ].body ?
 						0 :
 						this.offsetParent[ 0 ].scrollTop
 					);
 			}
 			this.reverting = true;
 			$( this.helper ).animate(
 				animation,
 				parseInt( this.options.revert, 10 ) || 500,
 				function() {
 					that._clear( event );
 				}
 			);
 		} else {
 			this._clear( event, noPropagation );
 		}
 
 		return false;
 
 	},
 
 	cancel: function() {
 
 		if ( this.dragging ) {
 
 			this._mouseUp( new $.Event( "mouseup", { target: null } ) );
 
 			if ( this.options.helper === "original" ) {
 				this.currentItem.css( this._storedCSS );
 				this._removeClass( this.currentItem, "ui-sortable-helper" );
 			} else {
 				this.currentItem.show();
 			}
 
 			//Post deactivating events to containers
 			for ( var i = this.containers.length - 1; i >= 0; i-- ) {
 				this.containers[ i ]._trigger( "deactivate", null, this._uiHash( this ) );
 				if ( this.containers[ i ].containerCache.over ) {
 					this.containers[ i ]._trigger( "out", null, this._uiHash( this ) );
 					this.containers[ i ].containerCache.over = 0;
 				}
 			}
 
 		}
 
 		if ( this.placeholder ) {
 
 			//$(this.placeholder[0]).remove(); would have been the jQuery way - unfortunately,
 			// it unbinds ALL events from the original node!
 			if ( this.placeholder[ 0 ].parentNode ) {
 				this.placeholder[ 0 ].parentNode.removeChild( this.placeholder[ 0 ] );
 			}
 			if ( this.options.helper !== "original" && this.helper &&
 					this.helper[ 0 ].parentNode ) {
 				this.helper.remove();
 			}
 
 			$.extend( this, {
 				helper: null,
 				dragging: false,
 				reverting: false,
 				_noFinalSort: null
 			} );
 
 			if ( this.domPosition.prev ) {
 				$( this.domPosition.prev ).after( this.currentItem );
 			} else {
 				$( this.domPosition.parent ).prepend( this.currentItem );
 			}
 		}
 
 		return this;
 
 	},
 
 	serialize: function( o ) {
 
 		var items = this._getItemsAsjQuery( o && o.connected ),
 			str = [];
 		o = o || {};
 
 		$( items ).each( function() {
 			var res = ( $( o.item || this ).attr( o.attribute || "id" ) || "" )
 				.match( o.expression || ( /(.+)[\-=_](.+)/ ) );
 			if ( res ) {
 				str.push(
 					( o.key || res[ 1 ] + "[]" ) +
 					"=" + ( o.key && o.expression ? res[ 1 ] : res[ 2 ] ) );
 			}
 		} );
 
 		if ( !str.length && o.key ) {
 			str.push( o.key + "=" );
 		}
 
 		return str.join( "&" );
 
 	},
 
 	toArray: function( o ) {
 
 		var items = this._getItemsAsjQuery( o && o.connected ),
 			ret = [];
 
 		o = o || {};
 
 		items.each( function() {
 			ret.push( $( o.item || this ).attr( o.attribute || "id" ) || "" );
 		} );
 		return ret;
 
 	},
 
 	/* Be careful with the following core functions */
 	_intersectsWith: function( item ) {
 
 		var x1 = this.positionAbs.left,
 			x2 = x1 + this.helperProportions.width,
 			y1 = this.positionAbs.top,
 			y2 = y1 + this.helperProportions.height,
 			l = item.left,
 			r = l + item.width,
 			t = item.top,
 			b = t + item.height,
 			dyClick = this.offset.click.top,
 			dxClick = this.offset.click.left,
 			isOverElementHeight = ( this.options.axis === "x" ) || ( ( y1 + dyClick ) > t &&
 				( y1 + dyClick ) < b ),
 			isOverElementWidth = ( this.options.axis === "y" ) || ( ( x1 + dxClick ) > l &&
 				( x1 + dxClick ) < r ),
 			isOverElement = isOverElementHeight && isOverElementWidth;
 
 		if ( this.options.tolerance === "pointer" ||
 			this.options.forcePointerForContainers ||
 			( this.options.tolerance !== "pointer" &&
 				this.helperProportions[ this.floating ? "width" : "height" ] >
 				item[ this.floating ? "width" : "height" ] )
 		) {
 			return isOverElement;
 		} else {
 
 			return ( l < x1 + ( this.helperProportions.width / 2 ) && // Right Half
 				x2 - ( this.helperProportions.width / 2 ) < r && // Left Half
 				t < y1 + ( this.helperProportions.height / 2 ) && // Bottom Half
 				y2 - ( this.helperProportions.height / 2 ) < b ); // Top Half
 
 		}
 	},
 
 	_intersectsWithPointer: function( item ) {
 		var verticalDirection, horizontalDirection,
 			isOverElementHeight = ( this.options.axis === "x" ) ||
 				this._isOverAxis(
 					this.positionAbs.top + this.offset.click.top, item.top, item.height ),
 			isOverElementWidth = ( this.options.axis === "y" ) ||
 				this._isOverAxis(
 					this.positionAbs.left + this.offset.click.left, item.left, item.width ),
 			isOverElement = isOverElementHeight && isOverElementWidth;
 
 		if ( !isOverElement ) {
 			return false;
 		}
 
 		verticalDirection = this._getDragVerticalDirection();
 		horizontalDirection = this._getDragHorizontalDirection();
 
 		return this.floating ?
 			( ( horizontalDirection === "right" || verticalDirection === "down" ) ? 2 : 1 )
 			: ( verticalDirection && ( verticalDirection === "down" ? 2 : 1 ) );
 
 	},
 
 	_intersectsWithSides: function( item ) {
 
 		var isOverBottomHalf = this._isOverAxis( this.positionAbs.top +
 				this.offset.click.top, item.top + ( item.height / 2 ), item.height ),
 			isOverRightHalf = this._isOverAxis( this.positionAbs.left +
 				this.offset.click.left, item.left + ( item.width / 2 ), item.width ),
 			verticalDirection = this._getDragVerticalDirection(),
 			horizontalDirection = this._getDragHorizontalDirection();
 
 		if ( this.floating && horizontalDirection ) {
 			return ( ( horizontalDirection === "right" && isOverRightHalf ) ||
 				( horizontalDirection === "left" && !isOverRightHalf ) );
 		} else {
 			return verticalDirection && ( ( verticalDirection === "down" && isOverBottomHalf ) ||
 				( verticalDirection === "up" && !isOverBottomHalf ) );
 		}
 
 	},
 
 	_getDragVerticalDirection: function() {
 		var delta = this.positionAbs.top - this.lastPositionAbs.top;
 		return delta !== 0 && ( delta > 0 ? "down" : "up" );
 	},
 
 	_getDragHorizontalDirection: function() {
 		var delta = this.positionAbs.left - this.lastPositionAbs.left;
 		return delta !== 0 && ( delta > 0 ? "right" : "left" );
 	},
 
 	refresh: function( event ) {
 		this._refreshItems( event );
 		this._setHandleClassName();
 		this.refreshPositions();
 		return this;
 	},
 
 	_connectWith: function() {
 		var options = this.options;
 		return options.connectWith.constructor === String ?
 			[ options.connectWith ] :
 			options.connectWith;
 	},
 
 	_getItemsAsjQuery: function( connected ) {
 
 		var i, j, cur, inst,
 			items = [],
 			queries = [],
 			connectWith = this._connectWith();
 
 		if ( connectWith && connected ) {
 			for ( i = connectWith.length - 1; i >= 0; i-- ) {
 				cur = $( connectWith[ i ], this.document[ 0 ] );
 				for ( j = cur.length - 1; j >= 0; j-- ) {
 					inst = $.data( cur[ j ], this.widgetFullName );
 					if ( inst && inst !== this && !inst.options.disabled ) {
 						queries.push( [ $.isFunction( inst.options.items ) ?
 							inst.options.items.call( inst.element ) :
 							$( inst.options.items, inst.element )
 								.not( ".ui-sortable-helper" )
 								.not( ".ui-sortable-placeholder" ), inst ] );
 					}
 				}
 			}
 		}
 
 		queries.push( [ $.isFunction( this.options.items ) ?
 			this.options.items
 				.call( this.element, null, { options: this.options, item: this.currentItem } ) :
 			$( this.options.items, this.element )
 				.not( ".ui-sortable-helper" )
 				.not( ".ui-sortable-placeholder" ), this ] );
 
 		function addItems() {
 			items.push( this );
 		}
 		for ( i = queries.length - 1; i >= 0; i-- ) {
 			queries[ i ][ 0 ].each( addItems );
 		}
 
 		return $( items );
 
 	},
 
 	_removeCurrentsFromItems: function() {
 
 		var list = this.currentItem.find( ":data(" + this.widgetName + "-item)" );
 
 		this.items = $.grep( this.items, function( item ) {
 			for ( var j = 0; j < list.length; j++ ) {
 				if ( list[ j ] === item.item[ 0 ] ) {
 					return false;
 				}
 			}
 			return true;
 		} );
 
 	},
 
 	_refreshItems: function( event ) {
 
 		this.items = [];
 		this.containers = [ this ];
 
 		var i, j, cur, inst, targetData, _queries, item, queriesLength,
 			items = this.items,
 			queries = [ [ $.isFunction( this.options.items ) ?
 				this.options.items.call( this.element[ 0 ], event, { item: this.currentItem } ) :
 				$( this.options.items, this.element ), this ] ],
 			connectWith = this._connectWith();
 
 		//Shouldn't be run the first time through due to massive slow-down
 		if ( connectWith && this.ready ) {
 			for ( i = connectWith.length - 1; i >= 0; i-- ) {
 				cur = $( connectWith[ i ], this.document[ 0 ] );
 				for ( j = cur.length - 1; j >= 0; j-- ) {
 					inst = $.data( cur[ j ], this.widgetFullName );
 					if ( inst && inst !== this && !inst.options.disabled ) {
 						queries.push( [ $.isFunction( inst.options.items ) ?
 							inst.options.items
 								.call( inst.element[ 0 ], event, { item: this.currentItem } ) :
 							$( inst.options.items, inst.element ), inst ] );
 						this.containers.push( inst );
 					}
 				}
 			}
 		}
 
 		for ( i = queries.length - 1; i >= 0; i-- ) {
 			targetData = queries[ i ][ 1 ];
 			_queries = queries[ i ][ 0 ];
 
 			for ( j = 0, queriesLength = _queries.length; j < queriesLength; j++ ) {
 				item = $( _queries[ j ] );
 
 				// Data for target checking (mouse manager)
 				item.data( this.widgetName + "-item", targetData );
 
 				items.push( {
 					item: item,
 					instance: targetData,
 					width: 0, height: 0,
 					left: 0, top: 0
 				} );
 			}
 		}
 
 	},
 
 	refreshPositions: function( fast ) {
 
 		// Determine whether items are being displayed horizontally
 		this.floating = this.items.length ?
 			this.options.axis === "x" || this._isFloating( this.items[ 0 ].item ) :
 			false;
 
 		//This has to be redone because due to the item being moved out/into the offsetParent,
 		// the offsetParent's position will change
 		if ( this.offsetParent && this.helper ) {
 			this.offset.parent = this._getParentOffset();
 		}
 
 		var i, item, t, p;
 
 		for ( i = this.items.length - 1; i >= 0; i-- ) {
 			item = this.items[ i ];
 
 			//We ignore calculating positions of all connected containers when we're not over them
 			if ( item.instance !== this.currentContainer && this.currentContainer &&
 					item.item[ 0 ] !== this.currentItem[ 0 ] ) {
 				continue;
 			}
 
 			t = this.options.toleranceElement ?
 				$( this.options.toleranceElement, item.item ) :
 				item.item;
 
 			if ( !fast ) {
 				item.width = t.outerWidth();
 				item.height = t.outerHeight();
 			}
 
 			p = t.offset();
 			item.left = p.left;
 			item.top = p.top;
 		}
 
 		if ( this.options.custom && this.options.custom.refreshContainers ) {
 			this.options.custom.refreshContainers.call( this );
 		} else {
 			for ( i = this.containers.length - 1; i >= 0; i-- ) {
 				p = this.containers[ i ].element.offset();
 				this.containers[ i ].containerCache.left = p.left;
 				this.containers[ i ].containerCache.top = p.top;
 				this.containers[ i ].containerCache.width =
 					this.containers[ i ].element.outerWidth();
 				this.containers[ i ].containerCache.height =
 					this.containers[ i ].element.outerHeight();
 			}
 		}
 
 		return this;
 	},
 
 	_createPlaceholder: function( that ) {
 		that = that || this;
 		var className,
 			o = that.options;
 
 		if ( !o.placeholder || o.placeholder.constructor === String ) {
 			className = o.placeholder;
 			o.placeholder = {
 				element: function() {
 
 					var nodeName = that.currentItem[ 0 ].nodeName.toLowerCase(),
 						element = $( "<" + nodeName + ">", that.document[ 0 ] );
 
 						that._addClass( element, "ui-sortable-placeholder",
 								className || that.currentItem[ 0 ].className )
 							._removeClass( element, "ui-sortable-helper" );
 
 					if ( nodeName === "tbody" ) {
 						that._createTrPlaceholder(
 							that.currentItem.find( "tr" ).eq( 0 ),
 							$( "<tr>", that.document[ 0 ] ).appendTo( element )
 						);
 					} else if ( nodeName === "tr" ) {
 						that._createTrPlaceholder( that.currentItem, element );
 					} else if ( nodeName === "img" ) {
 						element.attr( "src", that.currentItem.attr( "src" ) );
 					}
 
 					if ( !className ) {
 						element.css( "visibility", "hidden" );
 					}
 
 					return element;
 				},
 				update: function( container, p ) {
 
 					// 1. If a className is set as 'placeholder option, we don't force sizes -
 					// the class is responsible for that
 					// 2. The option 'forcePlaceholderSize can be enabled to force it even if a
 					// class name is specified
 					if ( className && !o.forcePlaceholderSize ) {
 						return;
 					}
 
 					//If the element doesn't have a actual height by itself (without styles coming
 					// from a stylesheet), it receives the inline height from the dragged item
 					if ( !p.height() ) {
 						p.height(
 							that.currentItem.innerHeight() -
 							parseInt( that.currentItem.css( "paddingTop" ) || 0, 10 ) -
 							parseInt( that.currentItem.css( "paddingBottom" ) || 0, 10 ) );
 					}
 					if ( !p.width() ) {
 						p.width(
 							that.currentItem.innerWidth() -
 							parseInt( that.currentItem.css( "paddingLeft" ) || 0, 10 ) -
 							parseInt( that.currentItem.css( "paddingRight" ) || 0, 10 ) );
 					}
 				}
 			};
 		}
 
 		//Create the placeholder
 		that.placeholder = $( o.placeholder.element.call( that.element, that.currentItem ) );
 
 		//Append it after the actual current item
 		that.currentItem.after( that.placeholder );
 
 		//Update the size of the placeholder (TODO: Logic to fuzzy, see line 316/317)
 		o.placeholder.update( that, that.placeholder );
 
 	},
 
 	_createTrPlaceholder: function( sourceTr, targetTr ) {
 		var that = this;
 
 		sourceTr.children().each( function() {
 			$( "<td>&#160;</td>", that.document[ 0 ] )
 				.attr( "colspan", $( this ).attr( "colspan" ) || 1 )
 				.appendTo( targetTr );
 		} );
 	},
 
 	_contactContainers: function( event ) {
 		var i, j, dist, itemWithLeastDistance, posProperty, sizeProperty, cur, nearBottom,
 			floating, axis,
 			innermostContainer = null,
 			innermostIndex = null;
 
 		// Get innermost container that intersects with item
 		for ( i = this.containers.length - 1; i >= 0; i-- ) {
 
 			// Never consider a container that's located within the item itself
 			if ( $.contains( this.currentItem[ 0 ], this.containers[ i ].element[ 0 ] ) ) {
 				continue;
 			}
 
 			if ( this._intersectsWith( this.containers[ i ].containerCache ) ) {
 
 				// If we've already found a container and it's more "inner" than this, then continue
 				if ( innermostContainer &&
 						$.contains(
 							this.containers[ i ].element[ 0 ],
 							innermostContainer.element[ 0 ] ) ) {
 					continue;
 				}
 
 				innermostContainer = this.containers[ i ];
 				innermostIndex = i;
 
 			} else {
 
 				// container doesn't intersect. trigger "out" event if necessary
 				if ( this.containers[ i ].containerCache.over ) {
 					this.containers[ i ]._trigger( "out", event, this._uiHash( this ) );
 					this.containers[ i ].containerCache.over = 0;
 				}
 			}
 
 		}
 
 		// If no intersecting containers found, return
 		if ( !innermostContainer ) {
 			return;
 		}
 
 		// Move the item into the container if it's not there already
 		if ( this.containers.length === 1 ) {
 			if ( !this.containers[ innermostIndex ].containerCache.over ) {
 				this.containers[ innermostIndex ]._trigger( "over", event, this._uiHash( this ) );
 				this.containers[ innermostIndex ].containerCache.over = 1;
 			}
 		} else {
 
 			// When entering a new container, we will find the item with the least distance and
 			// append our item near it
 			dist = 10000;
 			itemWithLeastDistance = null;
 			floating = innermostContainer.floating || this._isFloating( this.currentItem );
 			posProperty = floating ? "left" : "top";
 			sizeProperty = floating ? "width" : "height";
 			axis = floating ? "pageX" : "pageY";
 
 			for ( j = this.items.length - 1; j >= 0; j-- ) {
 				if ( !$.contains(
 						this.containers[ innermostIndex ].element[ 0 ], this.items[ j ].item[ 0 ] )
 				) {
 					continue;
 				}
 				if ( this.items[ j ].item[ 0 ] === this.currentItem[ 0 ] ) {
 					continue;
 				}
 
 				cur = this.items[ j ].item.offset()[ posProperty ];
 				nearBottom = false;
 				if ( event[ axis ] - cur > this.items[ j ][ sizeProperty ] / 2 ) {
 					nearBottom = true;
 				}
 
 				if ( Math.abs( event[ axis ] - cur ) < dist ) {
 					dist = Math.abs( event[ axis ] - cur );
 					itemWithLeastDistance = this.items[ j ];
 					this.direction = nearBottom ? "up" : "down";
 				}
 			}
 
 			//Check if dropOnEmpty is enabled
 			if ( !itemWithLeastDistance && !this.options.dropOnEmpty ) {
 				return;
 			}
 
 			if ( this.currentContainer === this.containers[ innermostIndex ] ) {
 				if ( !this.currentContainer.containerCache.over ) {
 					this.containers[ innermostIndex ]._trigger( "over", event, this._uiHash() );
 					this.currentContainer.containerCache.over = 1;
 				}
 				return;
 			}
 
 			itemWithLeastDistance ?
 				this._rearrange( event, itemWithLeastDistance, null, true ) :
 				this._rearrange( event, null, this.containers[ innermostIndex ].element, true );
 			this._trigger( "change", event, this._uiHash() );
 			this.containers[ innermostIndex ]._trigger( "change", event, this._uiHash( this ) );
 			this.currentContainer = this.containers[ innermostIndex ];
 
 			//Update the placeholder
 			this.options.placeholder.update( this.currentContainer, this.placeholder );
 
 			this.containers[ innermostIndex ]._trigger( "over", event, this._uiHash( this ) );
 			this.containers[ innermostIndex ].containerCache.over = 1;
 		}
 
 	},
 
 	_createHelper: function( event ) {
 
 		var o = this.options,
 			helper = $.isFunction( o.helper ) ?
 				$( o.helper.apply( this.element[ 0 ], [ event, this.currentItem ] ) ) :
 				( o.helper === "clone" ? this.currentItem.clone() : this.currentItem );
 
 		//Add the helper to the DOM if that didn't happen already
 		if ( !helper.parents( "body" ).length ) {
 			$( o.appendTo !== "parent" ?
 				o.appendTo :
 				this.currentItem[ 0 ].parentNode )[ 0 ].appendChild( helper[ 0 ] );
 		}
 
 		if ( helper[ 0 ] === this.currentItem[ 0 ] ) {
 			this._storedCSS = {
 				width: this.currentItem[ 0 ].style.width,
 				height: this.currentItem[ 0 ].style.height,
 				position: this.currentItem.css( "position" ),
 				top: this.currentItem.css( "top" ),
 				left: this.currentItem.css( "left" )
 			};
 		}
 
 		if ( !helper[ 0 ].style.width || o.forceHelperSize ) {
 			helper.width( this.currentItem.width() );
 		}
 		if ( !helper[ 0 ].style.height || o.forceHelperSize ) {
 			helper.height( this.currentItem.height() );
 		}
 
 		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 ] !== this.document[ 0 ] &&
 				$.contains( this.scrollParent[ 0 ], this.offsetParent[ 0 ] ) ) {
 			po.left += this.scrollParent.scrollLeft();
 			po.top += this.scrollParent.scrollTop();
 		}
 
 		// This needs to be actually done for all browsers, since pageX/pageY includes this
 		// information with an ugly IE fix
 		if ( this.offsetParent[ 0 ] === this.document[ 0 ].body ||
 				( this.offsetParent[ 0 ].tagName &&
 				this.offsetParent[ 0 ].tagName.toLowerCase() === "html" && $.ui.ie ) ) {
 			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.currentItem.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.currentItem.css( "marginLeft" ), 10 ) || 0 ),
 			top: ( parseInt( this.currentItem.css( "marginTop" ), 10 ) || 0 )
 		};
 	},
 
 	_cacheHelperProportions: function() {
 		this.helperProportions = {
 			width: this.helper.outerWidth(),
 			height: this.helper.outerHeight()
 		};
 	},
 
 	_setContainment: function() {
 
 		var ce, co, over,
 			o = this.options;
 		if ( o.containment === "parent" ) {
 			o.containment = this.helper[ 0 ].parentNode;
 		}
 		if ( o.containment === "document" || o.containment === "window" ) {
 			this.containment = [
 				0 - this.offset.relative.left - this.offset.parent.left,
 				0 - this.offset.relative.top - this.offset.parent.top,
 				o.containment === "document" ?
 					this.document.width() :
 					this.window.width() - this.helperProportions.width - this.margins.left,
 				( o.containment === "document" ?
 					( this.document.height() || document.body.parentNode.scrollHeight ) :
 					this.window.height() || this.document[ 0 ].body.parentNode.scrollHeight
 				) - this.helperProportions.height - this.margins.top
 			];
 		}
 
 		if ( !( /^(document|window|parent)$/ ).test( o.containment ) ) {
 			ce = $( o.containment )[ 0 ];
 			co = $( o.containment ).offset();
 			over = ( $( ce ).css( "overflow" ) !== "hidden" );
 
 			this.containment = [
 				co.left + ( parseInt( $( ce ).css( "borderLeftWidth" ), 10 ) || 0 ) +
 					( parseInt( $( ce ).css( "paddingLeft" ), 10 ) || 0 ) - this.margins.left,
 				co.top + ( parseInt( $( ce ).css( "borderTopWidth" ), 10 ) || 0 ) +
 					( parseInt( $( ce ).css( "paddingTop" ), 10 ) || 0 ) - this.margins.top,
 				co.left + ( 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,
 				co.top + ( 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
 			];
 		}
 
 	},
 
 	_convertPositionTo: function( d, pos ) {
 
 		if ( !pos ) {
 			pos = this.position;
 		}
 		var mod = d === "absolute" ? 1 : -1,
 			scroll = this.cssPosition === "absolute" &&
 				!( this.scrollParent[ 0 ] !== this.document[ 0 ] &&
 				$.contains( this.scrollParent[ 0 ], this.offsetParent[ 0 ] ) ) ?
 					this.offsetParent :
 					this.scrollParent,
 			scrollIsRootNode = ( /(html|body)/i ).test( scroll[ 0 ].tagName );
 
 		return {
 			top: (
 
 				// The absolute mouse position
 				pos.top	+
 
 				// Only for relative positioned nodes: Relative offset from element to offset parent
 				this.offset.relative.top * mod +
 
 				// The offsetParent's offset without borders (offset + border)
 				this.offset.parent.top * mod -
 				( ( this.cssPosition === "fixed" ?
 					-this.scrollParent.scrollTop() :
 					( scrollIsRootNode ? 0 : scroll.scrollTop() ) ) * mod )
 			),
 			left: (
 
 				// The absolute mouse position
 				pos.left +
 
 				// Only for relative positioned nodes: Relative offset from element to offset parent
 				this.offset.relative.left * mod +
 
 				// The offsetParent's offset without borders (offset + border)
 				this.offset.parent.left * mod	-
 				( ( this.cssPosition === "fixed" ?
 					-this.scrollParent.scrollLeft() : scrollIsRootNode ? 0 :
 					scroll.scrollLeft() ) * mod )
 			)
 		};
 
 	},
 
 	_generatePosition: function( event ) {
 
 		var top, left,
 			o = this.options,
 			pageX = event.pageX,
 			pageY = event.pageY,
 			scroll = this.cssPosition === "absolute" &&
 				!( this.scrollParent[ 0 ] !== this.document[ 0 ] &&
 				$.contains( this.scrollParent[ 0 ], this.offsetParent[ 0 ] ) ) ?
 					this.offsetParent :
 					this.scrollParent,
 				scrollIsRootNode = ( /(html|body)/i ).test( scroll[ 0 ].tagName );
 
 		// This is another very weird special case that only happens for relative elements:
 		// 1. If the css position is relative
 		// 2. and the scroll parent is the document or similar to the offset parent
 		// we have to refresh the relative offset during the scroll so there are no jumps
 		if ( this.cssPosition === "relative" && !( this.scrollParent[ 0 ] !== this.document[ 0 ] &&
 				this.scrollParent[ 0 ] !== this.offsetParent[ 0 ] ) ) {
 			this.offset.relative = this._getRelativeOffset();
 		}
 
 		/*
 		 * - 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
 
 			if ( this.containment ) {
 				if ( event.pageX - this.offset.click.left < this.containment[ 0 ] ) {
 					pageX = this.containment[ 0 ] + this.offset.click.left;
 				}
 				if ( event.pageY - this.offset.click.top < this.containment[ 1 ] ) {
 					pageY = this.containment[ 1 ] + this.offset.click.top;
 				}
 				if ( event.pageX - this.offset.click.left > this.containment[ 2 ] ) {
 					pageX = this.containment[ 2 ] + this.offset.click.left;
 				}
 				if ( event.pageY - this.offset.click.top > this.containment[ 3 ] ) {
 					pageY = this.containment[ 3 ] + this.offset.click.top;
 				}
 			}
 
 			if ( o.grid ) {
 				top = this.originalPageY + Math.round( ( pageY - this.originalPageY ) /
 					o.grid[ 1 ] ) * o.grid[ 1 ];
 				pageY = this.containment ?
 					( ( top - this.offset.click.top >= this.containment[ 1 ] &&
 						top - this.offset.click.top <= this.containment[ 3 ] ) ?
 							top :
 							( ( top - this.offset.click.top >= this.containment[ 1 ] ) ?
 								top - o.grid[ 1 ] : top + o.grid[ 1 ] ) ) :
 								top;
 
 				left = this.originalPageX + Math.round( ( pageX - this.originalPageX ) /
 					o.grid[ 0 ] ) * o.grid[ 0 ];
 				pageX = this.containment ?
 					( ( left - this.offset.click.left >= this.containment[ 0 ] &&
 						left - this.offset.click.left <= this.containment[ 2 ] ) ?
 							left :
 							( ( left - this.offset.click.left >= this.containment[ 0 ] ) ?
 								left - o.grid[ 0 ] : left + o.grid[ 0 ] ) ) :
 								left;
 			}
 
 		}
 
 		return {
 			top: (
 
 				// The absolute mouse position
 				pageY -
 
 				// Click offset (relative to the element)
 				this.offset.click.top -
 
 				// Only for relative positioned nodes: Relative offset from element to offset parent
 				this.offset.relative.top -
 
 				// The offsetParent's offset without borders (offset + border)
 				this.offset.parent.top +
 				( ( this.cssPosition === "fixed" ?
 					-this.scrollParent.scrollTop() :
 					( scrollIsRootNode ? 0 : scroll.scrollTop() ) ) )
 			),
 			left: (
 
 				// The absolute mouse position
 				pageX -
 
 				// Click offset (relative to the element)
 				this.offset.click.left -
 
 				// Only for relative positioned nodes: Relative offset from element to offset parent
 				this.offset.relative.left -
 
 				// The offsetParent's offset without borders (offset + border)
 				this.offset.parent.left +
 				( ( this.cssPosition === "fixed" ?
 					-this.scrollParent.scrollLeft() :
 					scrollIsRootNode ? 0 : scroll.scrollLeft() ) )
 			)
 		};
 
 	},
 
 	_rearrange: function( event, i, a, hardRefresh ) {
 
 		a ? a[ 0 ].appendChild( this.placeholder[ 0 ] ) :
 			i.item[ 0 ].parentNode.insertBefore( this.placeholder[ 0 ],
 				( this.direction === "down" ? i.item[ 0 ] : i.item[ 0 ].nextSibling ) );
 
 		//Various things done here to improve the performance:
 		// 1. we create a setTimeout, that calls refreshPositions
 		// 2. on the instance, we have a counter variable, that get's higher after every append
 		// 3. on the local scope, we copy the counter variable, and check in the timeout,
 		// if it's still the same
 		// 4. this lets only the last addition to the timeout stack through
 		this.counter = this.counter ? ++this.counter : 1;
 		var counter = this.counter;
 
 		this._delay( function() {
 			if ( counter === this.counter ) {
 
 				//Precompute after each DOM insertion, NOT on mousemove
 				this.refreshPositions( !hardRefresh );
 			}
 		} );
 
 	},
 
 	_clear: function( event, noPropagation ) {
 
 		this.reverting = false;
 
 		// We delay all events that have to be triggered to after the point where the placeholder
 		// has been removed and everything else normalized again
 		var i,
 			delayedTriggers = [];
 
 		// We first have to update the dom position of the actual currentItem
 		// Note: don't do it if the current item is already removed (by a user), or it gets
 		// reappended (see #4088)
 		if ( !this._noFinalSort && this.currentItem.parent().length ) {
 			this.placeholder.before( this.currentItem );
 		}
 		this._noFinalSort = null;
 
 		if ( this.helper[ 0 ] === this.currentItem[ 0 ] ) {
 			for ( i in this._storedCSS ) {
 				if ( this._storedCSS[ i ] === "auto" || this._storedCSS[ i ] === "static" ) {
 					this._storedCSS[ i ] = "";
 				}
 			}
 			this.currentItem.css( this._storedCSS );
 			this._removeClass( this.currentItem, "ui-sortable-helper" );
 		} else {
 			this.currentItem.show();
 		}
 
 		if ( this.fromOutside && !noPropagation ) {
 			delayedTriggers.push( function( event ) {
 				this._trigger( "receive", event, this._uiHash( this.fromOutside ) );
 			} );
 		}
 		if ( ( this.fromOutside ||
 				this.domPosition.prev !==
 				this.currentItem.prev().not( ".ui-sortable-helper" )[ 0 ] ||
 				this.domPosition.parent !== this.currentItem.parent()[ 0 ] ) && !noPropagation ) {
 
 			// Trigger update callback if the DOM position has changed
 			delayedTriggers.push( function( event ) {
 				this._trigger( "update", event, this._uiHash() );
 			} );
 		}
 
 		// Check if the items Container has Changed and trigger appropriate
 		// events.
 		if ( this !== this.currentContainer ) {
 			if ( !noPropagation ) {
 				delayedTriggers.push( function( event ) {
 					this._trigger( "remove", event, this._uiHash() );
 				} );
 				delayedTriggers.push( ( function( c ) {
 					return function( event ) {
 						c._trigger( "receive", event, this._uiHash( this ) );
 					};
 				} ).call( this, this.currentContainer ) );
 				delayedTriggers.push( ( function( c ) {
 					return function( event ) {
 						c._trigger( "update", event, this._uiHash( this ) );
 					};
 				} ).call( this, this.currentContainer ) );
 			}
 		}
 
 		//Post events to containers
 		function delayEvent( type, instance, container ) {
 			return function( event ) {
 				container._trigger( type, event, instance._uiHash( instance ) );
 			};
 		}
 		for ( i = this.containers.length - 1; i >= 0; i-- ) {
 			if ( !noPropagation ) {
 				delayedTriggers.push( delayEvent( "deactivate", this, this.containers[ i ] ) );
 			}
 			if ( this.containers[ i ].containerCache.over ) {
 				delayedTriggers.push( delayEvent( "out", this, this.containers[ i ] ) );
 				this.containers[ i ].containerCache.over = 0;
 			}
 		}
 
 		//Do what was originally in plugins
 		if ( this.storedCursor ) {
 			this.document.find( "body" ).css( "cursor", this.storedCursor );
 			this.storedStylesheet.remove();
 		}
 		if ( this._storedOpacity ) {
 			this.helper.css( "opacity", this._storedOpacity );
 		}
 		if ( this._storedZIndex ) {
 			this.helper.css( "zIndex", this._storedZIndex === "auto" ? "" : this._storedZIndex );
 		}
 
 		this.dragging = false;
 
 		if ( !noPropagation ) {
 			this._trigger( "beforeStop", event, this._uiHash() );
 		}
 
 		//$(this.placeholder[0]).remove(); would have been the jQuery way - unfortunately,
 		// it unbinds ALL events from the original node!
 		this.placeholder[ 0 ].parentNode.removeChild( this.placeholder[ 0 ] );
 
 		if ( !this.cancelHelperRemoval ) {
 			if ( this.helper[ 0 ] !== this.currentItem[ 0 ] ) {
 				this.helper.remove();
 			}
 			this.helper = null;
 		}
 
 		if ( !noPropagation ) {
 			for ( i = 0; i < delayedTriggers.length; i++ ) {
 
 				// Trigger all delayed events
 				delayedTriggers[ i ].call( this, event );
 			}
 			this._trigger( "stop", event, this._uiHash() );
 		}
 
 		this.fromOutside = false;
 		return !this.cancelHelperRemoval;
 
 	},
 
 	_trigger: function() {
 		if ( $.Widget.prototype._trigger.apply( this, arguments ) === false ) {
 			this.cancel();
 		}
 	},
 
 	_uiHash: function( _inst ) {
 		var inst = _inst || this;
 		return {
 			helper: inst.helper,
 			placeholder: inst.placeholder || $( [] ),
 			position: inst.position,
 			originalPosition: inst.originalPosition,
 			offset: inst.positionAbs,
 			item: inst.currentItem,
 			sender: _inst ? _inst.element : null
 		};
 	}
 
 } );
 
 
 
 
 }));