/*! jQuery UI - v1.12.1 - 2019-07-24
* http://jqueryui.com
* Includes: widget.js, data.js, disable-selection.js, scroll-parent.js, widgets/resizable.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 Disable Selection 1.12.1
 * http://jqueryui.com
 *
 * Copyright jQuery Foundation and other contributors
 * Released under the MIT license.
 * http://jquery.org/license
 */

//>>label: disableSelection
//>>group: Core
//>>description: Disable selection of text content within the set of matched elements.
//>>docs: http://api.jqueryui.com/disableSelection/

// This file is deprecated


var disableSelection = $.fn.extend( {
	disableSelection: ( function() {
		var eventType = "onselectstart" in document.createElement( "div" ) ?
			"selectstart" :
			"mousedown";

		return function() {
			return this.on( eventType + ".ui-disableSelection", function( event ) {
				event.preventDefault();
			} );
		};
	} )(),

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


/*!
 * 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 );
			}
		}
	}
};


/*!
 * jQuery UI Resizable 1.12.1
 * http://jqueryui.com
 *
 * Copyright jQuery Foundation and other contributors
 * Released under the MIT license.
 * http://jquery.org/license
 */

//>>label: Resizable
//>>group: Interactions
//>>description: Enables resize functionality for any element.
//>>docs: http://api.jqueryui.com/resizable/
//>>demos: http://jqueryui.com/resizable/
//>>css.structure: ../../themes/base/core.css
//>>css.structure: ../../themes/base/resizable.css
//>>css.theme: ../../themes/base/theme.css



$.widget( "ui.resizable", $.ui.mouse, {
	version: "1.12.1",
	widgetEventPrefix: "resize",
	options: {
		alsoResize: false,
		animate: false,
		animateDuration: "slow",
		animateEasing: "swing",
		aspectRatio: false,
		autoHide: false,
		classes: {
			"ui-resizable-se": "ui-icon ui-icon-gripsmall-diagonal-se"
		},
		containment: false,
		ghost: false,
		grid: false,
		handles: "e,s,se",
		helper: false,
		maxHeight: null,
		maxWidth: null,
		minHeight: 10,
		minWidth: 10,

		// See #7960
		zIndex: 90,

		// Callbacks
		resize: null,
		start: null,
		stop: null
	},

	_num: function( value ) {
		return parseFloat( value ) || 0;
	},

	_isNumber: function( value ) {
		return !isNaN( parseFloat( value ) );
	},

	_hasScroll: function( el, a ) {

		if ( $( el ).css( "overflow" ) === "hidden" ) {
			return false;
		}

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

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

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

	_create: function() {

		var margins,
			o = this.options,
			that = this;
		this._addClass( "ui-resizable" );

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

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

			this.element.wrap(
				$( "<div class='ui-wrapper' style='overflow: hidden;'></div>" ).css( {
					position: this.element.css( "position" ),
					width: this.element.outerWidth(),
					height: this.element.outerHeight(),
					top: this.element.css( "top" ),
					left: this.element.css( "left" )
				} )
			);

			this.element = this.element.parent().data(
				"ui-resizable", this.element.resizable( "instance" )
			);

			this.elementIsWrapper = true;

			margins = {
				marginTop: this.originalElement.css( "marginTop" ),
				marginRight: this.originalElement.css( "marginRight" ),
				marginBottom: this.originalElement.css( "marginBottom" ),
				marginLeft: this.originalElement.css( "marginLeft" )
			};

			this.element.css( margins );
			this.originalElement.css( "margin", 0 );

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

			this._proportionallyResizeElements.push( this.originalElement.css( {
				position: "static",
				zoom: 1,
				display: "block"
			} ) );

			// Support: IE9
			// avoid IE jump (hard set the margin)
			this.originalElement.css( margins );

			this._proportionallyResize();
		}

		this._setupHandles();

		if ( o.autoHide ) {
			$( this.element )
				.on( "mouseenter", function() {
					if ( o.disabled ) {
						return;
					}
					that._removeClass( "ui-resizable-autohide" );
					that._handles.show();
				} )
				.on( "mouseleave", function() {
					if ( o.disabled ) {
						return;
					}
					if ( !that.resizing ) {
						that._addClass( "ui-resizable-autohide" );
						that._handles.hide();
					}
				} );
		}

		this._mouseInit();
	},

	_destroy: function() {

		this._mouseDestroy();

		var wrapper,
			_destroy = function( exp ) {
				$( exp )
					.removeData( "resizable" )
					.removeData( "ui-resizable" )
					.off( ".resizable" )
					.find( ".ui-resizable-handle" )
						.remove();
			};

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

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

		return this;
	},

	_setOption: function( key, value ) {
		this._super( key, value );

		switch ( key ) {
		case "handles":
			this._removeHandles();
			this._setupHandles();
			break;
		default:
			break;
		}
	},

	_setupHandles: function() {
		var o = this.options, handle, i, n, hname, axis, that = this;
		this.handles = o.handles ||
			( !$( ".ui-resizable-handle", this.element ).length ?
				"e,s,se" : {
					n: ".ui-resizable-n",
					e: ".ui-resizable-e",
					s: ".ui-resizable-s",
					w: ".ui-resizable-w",
					se: ".ui-resizable-se",
					sw: ".ui-resizable-sw",
					ne: ".ui-resizable-ne",
					nw: ".ui-resizable-nw"
				} );

		this._handles = $();
		if ( this.handles.constructor === String ) {

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

			n = this.handles.split( "," );
			this.handles = {};

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

				handle = $.trim( n[ i ] );
				hname = "ui-resizable-" + handle;
				axis = $( "<div>" );
				this._addClass( axis, "ui-resizable-handle " + hname );

				axis.css( { zIndex: o.zIndex } );

				this.handles[ handle ] = ".ui-resizable-" + handle;
				this.element.append( axis );
			}

		}

		this._renderAxis = function( target ) {

			var i, axis, padPos, padWrapper;

			target = target || this.element;

			for ( i in this.handles ) {

				if ( this.handles[ i ].constructor === String ) {
					this.handles[ i ] = this.element.children( this.handles[ i ] ).first().show();
				} else if ( this.handles[ i ].jquery || this.handles[ i ].nodeType ) {
					this.handles[ i ] = $( this.handles[ i ] );
					this._on( this.handles[ i ], { "mousedown": that._mouseDown } );
				}

				if ( this.elementIsWrapper &&
						this.originalElement[ 0 ]
							.nodeName
							.match( /^(textarea|input|select|button)$/i ) ) {
					axis = $( this.handles[ i ], this.element );

					padWrapper = /sw|ne|nw|se|n|s/.test( i ) ?
						axis.outerHeight() :
						axis.outerWidth();

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

					target.css( padPos, padWrapper );

					this._proportionallyResize();
				}

				this._handles = this._handles.add( this.handles[ i ] );
			}
		};

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

		this._handles = this._handles.add( this.element.find( ".ui-resizable-handle" ) );
		this._handles.disableSelection();

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

		if ( o.autoHide ) {
			this._handles.hide();
			this._addClass( "ui-resizable-autohide" );
		}
	},

	_removeHandles: function() {
		this._handles.remove();
	},

	_mouseCapture: function( event ) {
		var i, handle,
			capture = false;

		for ( i in this.handles ) {
			handle = $( this.handles[ i ] )[ 0 ];
			if ( handle === event.target || $.contains( handle, event.target ) ) {
				capture = true;
			}
		}

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

	_mouseStart: function( event ) {

		var curleft, curtop, cursor,
			o = this.options,
			el = this.element;

		this.resizing = true;

		this._renderProxy();

		curleft = this._num( this.helper.css( "left" ) );
		curtop = this._num( this.helper.css( "top" ) );

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

		this.offset = this.helper.offset();
		this.position = { left: curleft, top: curtop };

		this.size = this._helper ? {
				width: this.helper.width(),
				height: this.helper.height()
			} : {
				width: el.width(),
				height: el.height()
			};

		this.originalSize = this._helper ? {
				width: el.outerWidth(),
				height: el.outerHeight()
			} : {
				width: el.width(),
				height: el.height()
			};

		this.sizeDiff = {
			width: el.outerWidth() - el.width(),
			height: el.outerHeight() - el.height()
		};

		this.originalPosition = { left: curleft, top: curtop };
		this.originalMousePosition = { left: event.pageX, top: event.pageY };

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

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

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

	_mouseDrag: function( event ) {

		var data, props,
			smp = this.originalMousePosition,
			a = this.axis,
			dx = ( event.pageX - smp.left ) || 0,
			dy = ( event.pageY - smp.top ) || 0,
			trigger = this._change[ a ];

		this._updatePrevProperties();

		if ( !trigger ) {
			return false;
		}

		data = trigger.apply( this, [ event, dx, dy ] );

		this._updateVirtualBoundaries( event.shiftKey );
		if ( this._aspectRatio || event.shiftKey ) {
			data = this._updateRatio( data, event );
		}

		data = this._respectSize( data, event );

		this._updateCache( data );

		this._propagate( "resize", event );

		props = this._applyChanges();

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

		if ( !$.isEmptyObject( props ) ) {
			this._updatePrevProperties();
			this._trigger( "resize", event, this.ui() );
			this._applyChanges();
		}

		return false;
	},

	_mouseStop: function( event ) {

		this.resizing = false;
		var pr, ista, soffseth, soffsetw, s, left, top,
			o = this.options, that = this;

		if ( this._helper ) {

			pr = this._proportionallyResizeElements;
			ista = pr.length && ( /textarea/i ).test( pr[ 0 ].nodeName );
			soffseth = ista && this._hasScroll( pr[ 0 ], "left" ) ? 0 : that.sizeDiff.height;
			soffsetw = ista ? 0 : that.sizeDiff.width;

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

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

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

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

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

		this._removeClass( "ui-resizable-resizing" );

		this._propagate( "stop", event );

		if ( this._helper ) {
			this.helper.remove();
		}

		return false;

	},

	_updatePrevProperties: function() {
		this.prevPosition = {
			top: this.position.top,
			left: this.position.left
		};
		this.prevSize = {
			width: this.size.width,
			height: this.size.height
		};
	},

	_applyChanges: function() {
		var props = {};

		if ( this.position.top !== this.prevPosition.top ) {
			props.top = this.position.top + "px";
		}
		if ( this.position.left !== this.prevPosition.left ) {
			props.left = this.position.left + "px";
		}
		if ( this.size.width !== this.prevSize.width ) {
			props.width = this.size.width + "px";
		}
		if ( this.size.height !== this.prevSize.height ) {
			props.height = this.size.height + "px";
		}

		this.helper.css( props );

		return props;
	},

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

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

		if ( this._aspectRatio || forceAspectRatio ) {
			pMinWidth = b.minHeight * this.aspectRatio;
			pMinHeight = b.minWidth / this.aspectRatio;
			pMaxWidth = b.maxHeight * this.aspectRatio;
			pMaxHeight = b.maxWidth / this.aspectRatio;

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

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

	_updateRatio: function( data ) {

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

		if ( this._isNumber( data.height ) ) {
			data.width = ( data.height * this.aspectRatio );
		} else if ( this._isNumber( data.width ) ) {
			data.height = ( data.width / this.aspectRatio );
		}

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

		return data;
	},

	_respectSize: function( data ) {

		var o = this._vBoundaries,
			a = this.axis,
			ismaxw = this._isNumber( data.width ) && o.maxWidth && ( o.maxWidth < data.width ),
			ismaxh = this._isNumber( data.height ) && o.maxHeight && ( o.maxHeight < data.height ),
			isminw = this._isNumber( data.width ) && o.minWidth && ( o.minWidth > data.width ),
			isminh = this._isNumber( data.height ) && o.minHeight && ( o.minHeight > data.height ),
			dw = this.originalPosition.left + this.originalSize.width,
			dh = this.originalPosition.top + this.originalSize.height,
			cw = /sw|nw|w/.test( a ), ch = /nw|ne|n/.test( a );
		if ( isminw ) {
			data.width = o.minWidth;
		}
		if ( isminh ) {
			data.height = o.minHeight;
		}
		if ( ismaxw ) {
			data.width = o.maxWidth;
		}
		if ( ismaxh ) {
			data.height = o.maxHeight;
		}

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

		// Fixing jump error on top/left - bug #2330
		if ( !data.width && !data.height && !data.left && data.top ) {
			data.top = null;
		} else if ( !data.width && !data.height && !data.top && data.left ) {
			data.left = null;
		}

		return data;
	},

	_getPaddingPlusBorderDimensions: function( element ) {
		var i = 0,
			widths = [],
			borders = [
				element.css( "borderTopWidth" ),
				element.css( "borderRightWidth" ),
				element.css( "borderBottomWidth" ),
				element.css( "borderLeftWidth" )
			],
			paddings = [
				element.css( "paddingTop" ),
				element.css( "paddingRight" ),
				element.css( "paddingBottom" ),
				element.css( "paddingLeft" )
			];

		for ( ; i < 4; i++ ) {
			widths[ i ] = ( parseFloat( borders[ i ] ) || 0 );
			widths[ i ] += ( parseFloat( paddings[ i ] ) || 0 );
		}

		return {
			height: widths[ 0 ] + widths[ 2 ],
			width: widths[ 1 ] + widths[ 3 ]
		};
	},

	_proportionallyResize: function() {

		if ( !this._proportionallyResizeElements.length ) {
			return;
		}

		var prel,
			i = 0,
			element = this.helper || this.element;

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

			prel = this._proportionallyResizeElements[ i ];

			// TODO: Seems like a bug to cache this.outerDimensions
			// considering that we are in a loop.
			if ( !this.outerDimensions ) {
				this.outerDimensions = this._getPaddingPlusBorderDimensions( prel );
			}

			prel.css( {
				height: ( element.height() - this.outerDimensions.height ) || 0,
				width: ( element.width() - this.outerDimensions.width ) || 0
			} );

		}

	},

	_renderProxy: function() {

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

		if ( this._helper ) {

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

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

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

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

	},

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

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

	plugins: {},

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

} );

/*
 * Resizable Extensions
 */

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

	stop: function( event ) {
		var that = $( this ).resizable( "instance" ),
			o = that.options,
			pr = that._proportionallyResizeElements,
			ista = pr.length && ( /textarea/i ).test( pr[ 0 ].nodeName ),
			soffseth = ista && that._hasScroll( pr[ 0 ], "left" ) ? 0 : that.sizeDiff.height,
			soffsetw = ista ? 0 : that.sizeDiff.width,
			style = {
				width: ( that.size.width - soffsetw ),
				height: ( that.size.height - soffseth )
			},
			left = ( parseFloat( that.element.css( "left" ) ) +
				( that.position.left - that.originalPosition.left ) ) || null,
			top = ( parseFloat( that.element.css( "top" ) ) +
				( that.position.top - that.originalPosition.top ) ) || null;

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

					var data = {
						width: parseFloat( that.element.css( "width" ) ),
						height: parseFloat( that.element.css( "height" ) ),
						top: parseFloat( that.element.css( "top" ) ),
						left: parseFloat( that.element.css( "left" ) )
					};

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

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

				}
			}
		);
	}

} );

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

	start: function() {
		var element, p, co, ch, cw, width, height,
			that = $( this ).resizable( "instance" ),
			o = that.options,
			el = that.element,
			oc = o.containment,
			ce = ( oc instanceof $ ) ?
				oc.get( 0 ) :
				( /parent/.test( oc ) ) ? el.parent().get( 0 ) : oc;

		if ( !ce ) {
			return;
		}

		that.containerElement = $( ce );

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

			that.parentData = {
				element: $( document ),
				left: 0,
				top: 0,
				width: $( document ).width(),
				height: $( document ).height() || document.body.parentNode.scrollHeight
			};
		} else {
			element = $( ce );
			p = [];
			$( [ "Top", "Right", "Left", "Bottom" ] ).each( function( i, name ) {
				p[ i ] = that._num( element.css( "padding" + name ) );
			} );

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

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

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

	resize: function( event ) {
		var woset, hoset, isParent, isOffsetRelative,
			that = $( this ).resizable( "instance" ),
			o = that.options,
			co = that.containerOffset,
			cp = that.position,
			pRatio = that._aspectRatio || event.shiftKey,
			cop = {
				top: 0,
				left: 0
			},
			ce = that.containerElement,
			continueResize = true;

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

		if ( cp.left < ( that._helper ? co.left : 0 ) ) {
			that.size.width = that.size.width +
				( that._helper ?
					( that.position.left - co.left ) :
					( that.position.left - cop.left ) );

			if ( pRatio ) {
				that.size.height = that.size.width / that.aspectRatio;
				continueResize = false;
			}
			that.position.left = o.helper ? co.left : 0;
		}

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

			if ( pRatio ) {
				that.size.width = that.size.height * that.aspectRatio;
				continueResize = false;
			}
			that.position.top = that._helper ? co.top : 0;
		}

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

		if ( isParent && isOffsetRelative ) {
			that.offset.left = that.parentData.left + that.position.left;
			that.offset.top = that.parentData.top + that.position.top;
		} else {
			that.offset.left = that.element.offset().left;
			that.offset.top = that.element.offset().top;
		}

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

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

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

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

		if ( !continueResize ) {
			that.position.left = that.prevPosition.left;
			that.position.top = that.prevPosition.top;
			that.size.width = that.prevSize.width;
			that.size.height = that.prevSize.height;
		}
	},

	stop: function() {
		var that = $( this ).resizable( "instance" ),
			o = that.options,
			co = that.containerOffset,
			cop = that.containerPosition,
			ce = that.containerElement,
			helper = $( that.helper ),
			ho = helper.offset(),
			w = helper.outerWidth() - that.sizeDiff.width,
			h = helper.outerHeight() - that.sizeDiff.height;

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

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

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

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

		$( o.alsoResize ).each( function() {
			var el = $( this );
			el.data( "ui-resizable-alsoresize", {
				width: parseFloat( el.width() ), height: parseFloat( el.height() ),
				left: parseFloat( el.css( "left" ) ), top: parseFloat( el.css( "top" ) )
			} );
		} );
	},

	resize: function( event, ui ) {
		var that = $( this ).resizable( "instance" ),
			o = that.options,
			os = that.originalSize,
			op = that.originalPosition,
			delta = {
				height: ( that.size.height - os.height ) || 0,
				width: ( that.size.width - os.width ) || 0,
				top: ( that.position.top - op.top ) || 0,
				left: ( that.position.left - op.left ) || 0
			};

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

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

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

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

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

	start: function() {

		var that = $( this ).resizable( "instance" ), cs = that.size;

		that.ghost = that.originalElement.clone();
		that.ghost.css( {
			opacity: 0.25,
			display: "block",
			position: "relative",
			height: cs.height,
			width: cs.width,
			margin: 0,
			left: 0,
			top: 0
		} );

		that._addClass( that.ghost, "ui-resizable-ghost" );

		// DEPRECATED
		// TODO: remove after 1.12
		if ( $.uiBackCompat !== false && typeof that.options.ghost === "string" ) {

			// Ghost option
			that.ghost.addClass( this.options.ghost );
		}

		that.ghost.appendTo( that.helper );

	},

	resize: function() {
		var that = $( this ).resizable( "instance" );
		if ( that.ghost ) {
			that.ghost.css( {
				position: "relative",
				height: that.size.height,
				width: that.size.width
			} );
		}
	},

	stop: function() {
		var that = $( this ).resizable( "instance" );
		if ( that.ghost && that.helper ) {
			that.helper.get( 0 ).removeChild( that.ghost.get( 0 ) );
		}
	}

} );

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

	resize: function() {
		var outerDimensions,
			that = $( this ).resizable( "instance" ),
			o = that.options,
			cs = that.size,
			os = that.originalSize,
			op = that.originalPosition,
			a = that.axis,
			grid = typeof o.grid === "number" ? [ o.grid, o.grid ] : o.grid,
			gridX = ( grid[ 0 ] || 1 ),
			gridY = ( grid[ 1 ] || 1 ),
			ox = Math.round( ( cs.width - os.width ) / gridX ) * gridX,
			oy = Math.round( ( cs.height - os.height ) / gridY ) * gridY,
			newWidth = os.width + ox,
			newHeight = os.height + oy,
			isMaxWidth = o.maxWidth && ( o.maxWidth < newWidth ),
			isMaxHeight = o.maxHeight && ( o.maxHeight < newHeight ),
			isMinWidth = o.minWidth && ( o.minWidth > newWidth ),
			isMinHeight = o.minHeight && ( o.minHeight > newHeight );

		o.grid = grid;

		if ( isMinWidth ) {
			newWidth += gridX;
		}
		if ( isMinHeight ) {
			newHeight += gridY;
		}
		if ( isMaxWidth ) {
			newWidth -= gridX;
		}
		if ( isMaxHeight ) {
			newHeight -= gridY;
		}

		if ( /^(se|s|e)$/.test( a ) ) {
			that.size.width = newWidth;
			that.size.height = newHeight;
		} else if ( /^(ne)$/.test( a ) ) {
			that.size.width = newWidth;
			that.size.height = newHeight;
			that.position.top = op.top - oy;
		} else if ( /^(sw)$/.test( a ) ) {
			that.size.width = newWidth;
			that.size.height = newHeight;
			that.position.left = op.left - ox;
		} else {
			if ( newHeight - gridY <= 0 || newWidth - gridX <= 0 ) {
				outerDimensions = that._getPaddingPlusBorderDimensions( this );
			}

			if ( newHeight - gridY > 0 ) {
				that.size.height = newHeight;
				that.position.top = op.top - oy;
			} else {
				newHeight = gridY - outerDimensions.height;
				that.size.height = newHeight;
				that.position.top = op.top + os.height - newHeight;
			}
			if ( newWidth - gridX > 0 ) {
				that.size.width = newWidth;
				that.position.left = op.left - ox;
			} else {
				newWidth = gridX - outerDimensions.width;
				that.size.width = newWidth;
				that.position.left = op.left + os.width - newWidth;
			}
		}
	}

} );

var widgetsResizable = $.ui.resizable;


/*!
 * 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
		};
	}

} );




}));