text: /*!
   * jQuery UI Mouse @VERSION
   * 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/
  
  ( function( factory ) {
  	if ( typeof define === "function" && define.amd ) {
  
  		// AMD. Register as an anonymous module.
  		define( [
  			"jquery",
  			"../ie",
  			"../version",
  			"../widget"
  		], factory );
  	} else {
  
  		// Browser globals
  		factory( jQuery );
  	}
  }( function( $ ) {
  
  var mouseHandled = false;
  $( document ).on( "mouseup", function() {
  	mouseHandled = false;
  } );
  
  return $.widget( "ui.mouse", {
  	version: "@VERSION",
  	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; }
  } );
  
  } ) );
  
  /*!
   * jQuery UI :data @VERSION
   * http://jqueryui.com
   *
   * Copyright jQuery Foundation and other contributors
   * Released under the MIT license.
   * http://jquery.org/license
   */
  
  //>>label: :data
  //>>group: Core
  //>>description: Selects elements which have data stored under the specified key.
  //>>docs: http://api.jqueryui.com/data-selector/
  
  ( function( factory ) {
  	if ( typeof define === "function" && define.amd ) {
  
  		// AMD. Register as an anonymous module.
  		define( [ "jquery", "./version" ], factory );
  	} else {
  
  		// Browser globals
  		factory( jQuery );
  	}
  } ( function( $ ) {
  return $.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 ] );
  		}
  } );
  } ) );
  
  ( function( factory ) {
  	if ( typeof define === "function" && define.amd ) {
  
  		// AMD. Register as an anonymous module.
  		define( [ "jquery", "./version" ], factory );
  	} else {
  
  		// Browser globals
  		factory( jQuery );
  	}
  } ( function( $ ) {
  
  // $.ui.plugin is deprecated. Use $.widget() extensions instead.
  return $.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 );
  			}
  		}
  	}
  };
  
  } ) );
  
  ( function( factory ) {
  	if ( typeof define === "function" && define.amd ) {
  
  		// AMD. Register as an anonymous module.
  		define( [ "jquery", "./version" ], factory );
  	} else {
  
  		// Browser globals
  		factory( jQuery );
  	}
  } ( function( $ ) {
  return $.ui.safeActiveElement = function( document ) {
  	var activeElement;
  
  	// Support: IE 9 only
  	// IE9 throws an "Unspecified error" accessing document.activeElement from an <iframe>
  	try {
  		activeElement = document.activeElement;
  	} catch ( error ) {
  		activeElement = document.body;
  	}
  
  	// Support: IE 9 - 11 only
  	// IE may return null instead of an element
  	// Interestingly, this only seems to occur when NOT in an iframe
  	if ( !activeElement ) {
  		activeElement = document.body;
  	}
  
  	// Support: IE 11 only
  	// IE11 returns a seemingly empty object in some cases when accessing
  	// document.activeElement from an <iframe>
  	if ( !activeElement.nodeName ) {
  		activeElement = document.body;
  	}
  
  	return activeElement;
  };
  
  } ) );
  
  ( function( factory ) {
  	if ( typeof define === "function" && define.amd ) {
  
  		// AMD. Register as an anonymous module.
  		define( [ "jquery", "./version" ], factory );
  	} else {
  
  		// Browser globals
  		factory( jQuery );
  	}
  } ( function( $ ) {
  return $.ui.safeBlur = function( element ) {
  
  	// Support: IE9 - 10 only
  	// If the <body> is blurred, IE will switch windows, see #9420
  	if ( element && element.nodeName.toLowerCase() !== "body" ) {
  		$( element ).trigger( "blur" );
  	}
  };
  
  } ) );
  
  /*!
   * jQuery UI Scroll Parent @VERSION
   * 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/
  
  ( function( factory ) {
  	if ( typeof define === "function" && define.amd ) {
  
  		// AMD. Register as an anonymous module.
  		define( [ "jquery", "./version" ], factory );
  	} else {
  
  		// Browser globals
  		factory( jQuery );
  	}
  } ( function( $ ) {
  
  return $.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;
  };
  
  } ) );
  
  /*!
   * jQuery UI Disable Selection @VERSION
   * 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
  ( function( factory ) {
  	if ( typeof define === "function" && define.amd ) {
  
  		// AMD. Register as an anonymous module.
  		define( [ "jquery", "./version" ], factory );
  	} else {
  
  		// Browser globals
  		factory( jQuery );
  	}
  } ( function( $ ) {
  
  return $.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 Draggable @VERSION
   * http://jqueryui.com
   *
   * Copyright jQuery Foundation and other contributors
   * Released under the MIT license.
   * http://jquery.org/license
   */
  
  //>>label: Draggable
  //>>group: Interactions
  //>>description: Enables dragging functionality for any element.
  //>>docs: http://api.jqueryui.com/draggable/
  //>>demos: http://jqueryui.com/draggable/
  //>>css.structure: ../../themes/base/draggable.css
  
  ( function( factory ) {
  	if ( typeof define === "function" && define.amd ) {
  
  		// AMD. Register as an anonymous module.
  		define( [
  			"jquery",
  			"./mouse",
  			"../data",
  			"../plugin",
  			"../safe-active-element",
  			"../safe-blur",
  			"../scroll-parent",
  			"../version",
  			"../widget"
  		], factory );
  	} else {
  
  		// Browser globals
  		factory( jQuery );
  	}
  }( function( $ ) {
  
  $.widget( "ui.draggable", $.ui.mouse, {
  	version: "@VERSION",
  	widgetEventPrefix: "drag",
  	options: {
  		addClasses: true,
  		appendTo: "parent",
  		axis: false,
  		connectToSortable: false,
  		containment: false,
  		cursor: "auto",
  		cursorAt: false,
  		grid: false,
  		handle: false,
  		helper: "original",
  		iframeFix: false,
  		opacity: false,
  		refreshPositions: false,
  		revert: false,
  		revertDuration: 500,
  		scope: "default",
  		scroll: true,
  		scrollSensitivity: 20,
  		scrollSpeed: 20,
  		snap: false,
  		snapMode: "both",
  		snapTolerance: 20,
  		stack: false,
  		zIndex: false,
  
  		// Callbacks
  		drag: null,
  		start: null,
  		stop: null
  	},
  	_create: function() {
  
  		if ( this.options.helper === "original" ) {
  			this._setPositionRelative();
  		}
  		if ( this.options.addClasses ) {
  			this._addClass( "ui-draggable" );
  		}
  		this._setHandleClassName();
  
  		this._mouseInit();
  	},
  
  	_setOption: function( key, value ) {
  		this._super( key, value );
  		if ( key === "handle" ) {
  			this._removeHandleClassName();
  			this._setHandleClassName();
  		}
  	},
  
  	_destroy: function() {
  		if ( ( this.helper || this.element ).is( ".ui-draggable-dragging" ) ) {
  			this.destroyOnClear = true;
  			return;
  		}
  		this._removeHandleClassName();
  		this._mouseDestroy();
  	},
  
  	_mouseCapture: function( event ) {
  		var o = this.options;
  
  		this._blurActiveElement( event );
  
  		// Among others, prevent a drag on a resizable-handle
  		if ( this.helper || o.disabled || $( event.target ).closest( ".ui-resizable-handle" ).length > 0 ) {
  			return false;
  		}
  
  		//Quit if we're not on a valid handle
  		this.handle = this._getHandle( event );
  		if ( !this.handle ) {
  			return false;
  		}
  
  		this._blockFrames( o.iframeFix === true ? "iframe" : o.iframeFix );
  
  		return true;
  
  	},
  
  	_blockFrames: function( selector ) {
  		this.iframeBlocks = this.document.find( selector ).map( function() {
  			var iframe = $( this );
  
  			return $( "<div>" )
  				.css( "position", "absolute" )
  				.appendTo( iframe.parent() )
  				.outerWidth( iframe.outerWidth() )
  				.outerHeight( iframe.outerHeight() )
  				.offset( iframe.offset() )[ 0 ];
  		} );
  	},
  
  	_unblockFrames: function() {
  		if ( this.iframeBlocks ) {
  			this.iframeBlocks.remove();
  			delete this.iframeBlocks;
  		}
  	},
  
  	_blurActiveElement: function( event ) {
  
  		// Only need to blur if the event occurred on the draggable itself, see #10527
  		if ( !this.handleElement.is( event.target ) ) {
  			return;
  		}
  
  		// Blur any element that currently has focus, see #4261
  		$.ui.safeBlur( $.ui.safeActiveElement( this.document[ 0 ] ) );
  	},
  
  	_mouseStart: function( event ) {
  
  		var o = this.options;
  
  		//Create and append the visible helper
  		this.helper = this._createHelper( event );
  
  		this._addClass( this.helper, "ui-draggable-dragging" );
  
  		//Cache the helper size
  		this._cacheHelperProportions();
  
  		//If ddmanager is used for droppables, set the global draggable
  		if ( $.ui.ddmanager ) {
  			$.ui.ddmanager.current = this;
  		}
  
  		/*
  		 * - Position generation -
  		 * This block generates everything position related - it's the core of draggables.
  		 */
  
  		//Cache the margins of the original element
  		this._cacheMargins();
  
  		//Store the helper's css position
  		this.cssPosition = this.helper.css( "position" );
  		this.scrollParent = this.helper.scrollParent( true );
  		this.offsetParent = this.helper.offsetParent();
  		this.hasFixedAncestor = this.helper.parents().filter( function() {
  				return $( this ).css( "position" ) === "fixed";
  			} ).length > 0;
  
  		//The element's absolute position on the page minus margins
  		this.positionAbs = this.element.offset();
  		this._refreshOffsets( event );
  
  		//Generate the original position
  		this.originalPosition = this.position = this._generatePosition( event, false );
  		this.originalPageX = event.pageX;
  		this.originalPageY = event.pageY;
  
  		//Adjust the mouse offset relative to the helper if "cursorAt" is supplied
  		( o.cursorAt && this._adjustOffsetFromHelper( o.cursorAt ) );
  
  		//Set a containment if given in the options
  		this._setContainment();
  
  		//Trigger event + callbacks
  		if ( this._trigger( "start", event ) === false ) {
  			this._clear();
  			return false;
  		}
  
  		//Recache the helper size
  		this._cacheHelperProportions();
  
  		//Prepare the droppable offsets
  		if ( $.ui.ddmanager && !o.dropBehaviour ) {
  			$.ui.ddmanager.prepareOffsets( this, event );
  		}
  
  		this._mouseDrag( event, true ); //Execute the drag once - this causes the helper not to be visible before getting its correct position
  
  		//If the ddmanager is used for droppables, inform the manager that dragging has started (see #5003)
  		if ( $.ui.ddmanager ) {
  			$.ui.ddmanager.dragStart( this, event );
  		}
  
  		return true;
  	},
  
  	_refreshOffsets: function( event ) {
  		this.offset = {
  			top: this.positionAbs.top - this.margins.top,
  			left: this.positionAbs.left - this.margins.left,
  			scroll: false,
  			parent: this._getParentOffset(),
  			relative: this._getRelativeOffset()
  		};
  
  		this.offset.click = {
  			left: event.pageX - this.offset.left,
  			top: event.pageY - this.offset.top
  		};
  	},
  
  	_mouseDrag: function( event, noPropagation ) {
  
  		// reset any necessary cached properties (see #5009)
  		if ( this.hasFixedAncestor ) {
  			this.offset.parent = this._getParentOffset();
  		}
  
  		//Compute the helpers position
  		this.position = this._generatePosition( event, true );
  		this.positionAbs = this._convertPositionTo( "absolute" );
  
  		//Call plugins and callbacks and use the resulting position if something is returned
  		if ( !noPropagation ) {
  			var ui = this._uiHash();
  			if ( this._trigger( "drag", event, ui ) === false ) {
  				this._mouseUp( new $.Event( "mouseup", event ) );
  				return false;
  			}
  			this.position = ui.position;
  		}
  
  		this.helper[ 0 ].style.left = this.position.left + "px";
  		this.helper[ 0 ].style.top = this.position.top + "px";
  
  		if ( $.ui.ddmanager ) {
  			$.ui.ddmanager.drag( this, event );
  		}
  
  		return false;
  	},
  
  	_mouseStop: function( event ) {
  
  		//If we are using droppables, inform the manager about the drop
  		var that = this,
  			dropped = false;
  		if ( $.ui.ddmanager && !this.options.dropBehaviour ) {
  			dropped = $.ui.ddmanager.drop( this, event );
  		}
  
  		//if a drop comes from outside (a sortable)
  		if ( this.dropped ) {
  			dropped = this.dropped;
  			this.dropped = false;
  		}
  
  		if ( ( this.options.revert === "invalid" && !dropped ) || ( this.options.revert === "valid" && dropped ) || this.options.revert === true || ( $.isFunction( this.options.revert ) && this.options.revert.call( this.element, dropped ) ) ) {
  			$( this.helper ).animate( this.originalPosition, parseInt( this.options.revertDuration, 10 ), function() {
  				if ( that._trigger( "stop", event ) !== false ) {
  					that._clear();
  				}
  			} );
  		} else {
  			if ( this._trigger( "stop", event ) !== false ) {
  				this._clear();
  			}
  		}
  
  		return false;
  	},
  
  	_mouseUp: function( event ) {
  		this._unblockFrames();
  
  		//If the ddmanager is used for droppables, inform the manager that dragging has stopped (see #5003)
  		if ( $.ui.ddmanager ) {
  			$.ui.ddmanager.dragStop( this, event );
  		}
  
  		// Only need to focus if the event occurred on the draggable itself, see #10527
  		if ( this.handleElement.is( event.target ) ) {
  
  			// The interaction is over; whether or not the click resulted in a drag, focus the element
  			this.element.trigger( "focus" );
  		}
  
  		return $.ui.mouse.prototype._mouseUp.call( this, event );
  	},
  
  	cancel: function() {
  
  		if ( this.helper.is( ".ui-draggable-dragging" ) ) {
  			this._mouseUp( new $.Event( "mouseup", { target: this.element[ 0 ] } ) );
  		} else {
  			this._clear();
  		}
  
  		return this;
  
  	},
  
  	_getHandle: function( event ) {
  		return this.options.handle ?
  			!!$( event.target ).closest( this.element.find( this.options.handle ) ).length :
  			true;
  	},
  
  	_setHandleClassName: function() {
  		this.handleElement = this.options.handle ?
  			this.element.find( this.options.handle ) : this.element;
  		this._addClass( this.handleElement, "ui-draggable-handle" );
  	},
  
  	_removeHandleClassName: function() {
  		this._removeClass( this.handleElement, "ui-draggable-handle" );
  	},
  
  	_createHelper: function( event ) {
  
  		var o = this.options,
  			helperIsFunction = $.isFunction( o.helper ),
  			helper = helperIsFunction ?
  				$( o.helper.apply( this.element[ 0 ], [ event ] ) ) :
  				( o.helper === "clone" ?
  					this.element.clone().removeAttr( "id" ) :
  					this.element );
  
  		if ( !helper.parents( "body" ).length ) {
  			helper.appendTo( ( o.appendTo === "parent" ? this.element[ 0 ].parentNode : o.appendTo ) );
  		}
  
  		// Http://bugs.jqueryui.com/ticket/9446
  		// a helper function can return the original element
  		// which wouldn't have been set to relative in _create
  		if ( helperIsFunction && helper[ 0 ] === this.element[ 0 ] ) {
  			this._setPositionRelative();
  		}
  
  		if ( helper[ 0 ] !== this.element[ 0 ] && !( /(fixed|absolute)/ ).test( helper.css( "position" ) ) ) {
  			helper.css( "position", "absolute" );
  		}
  
  		return helper;
  
  	},
  
  	_setPositionRelative: function() {
  		if ( !( /^(?:r|a|f)/ ).test( this.element.css( "position" ) ) ) {
  			this.element[ 0 ].style.position = "relative";
  		}
  	},
  
  	_adjustOffsetFromHelper: function( obj ) {
  		if ( typeof obj === "string" ) {
  			obj = obj.split( " " );
  		}
  		if ( $.isArray( obj ) ) {
  			obj = { left: +obj[ 0 ], top: +obj[ 1 ] || 0 };
  		}
  		if ( "left" in obj ) {
  			this.offset.click.left = obj.left + this.margins.left;
  		}
  		if ( "right" in obj ) {
  			this.offset.click.left = this.helperProportions.width - obj.right + this.margins.left;
  		}
  		if ( "top" in obj ) {
  			this.offset.click.top = obj.top + this.margins.top;
  		}
  		if ( "bottom" in obj ) {
  			this.offset.click.top = this.helperProportions.height - obj.bottom + this.margins.top;
  		}
  	},
  
  	_isRootNode: function( element ) {
  		return ( /(html|body)/i ).test( element.tagName ) || element === this.document[ 0 ];
  	},
  
  	_getParentOffset: function() {
  
  		//Get the offsetParent and cache its position
  		var po = this.offsetParent.offset(),
  			document = this.document[ 0 ];
  
  		// This is a special case where we need to modify a offset calculated on start, since the following happened:
  		// 1. The position of the helper is absolute, so it's position is calculated based on the next positioned parent
  		// 2. The actual offset parent is a child of the scroll parent, and the scroll parent isn't the document, which means that
  		//    the scroll is included in the initial calculation of the offset of the parent, and never recalculated upon drag
  		if ( this.cssPosition === "absolute" && this.scrollParent[ 0 ] !== document && $.contains( this.scrollParent[ 0 ], this.offsetParent[ 0 ] ) ) {
  			po.left += this.scrollParent.scrollLeft();
  			po.top += this.scrollParent.scrollTop();
  		}
  
  		if ( this._isRootNode( this.offsetParent[ 0 ] ) ) {
  			po = { top: 0, left: 0 };
  		}
  
  		return {
  			top: po.top + ( parseInt( this.offsetParent.css( "borderTopWidth" ), 10 ) || 0 ),
  			left: po.left + ( parseInt( this.offsetParent.css( "borderLeftWidth" ), 10 ) || 0 )
  		};
  
  	},
  
  	_getRelativeOffset: function() {
  		if ( this.cssPosition !== "relative" ) {
  			return { top: 0, left: 0 };
  		}
  
  		var p = this.element.position(),
  			scrollIsRootNode = this._isRootNode( this.scrollParent[ 0 ] );
  
  		return {
  			top: p.top - ( parseInt( this.helper.css( "top" ), 10 ) || 0 ) + ( !scrollIsRootNode ? this.scrollParent.scrollTop() : 0 ),
  			left: p.left - ( parseInt( this.helper.css( "left" ), 10 ) || 0 ) + ( !scrollIsRootNode ? this.scrollParent.scrollLeft() : 0 )
  		};
  
  	},
  
  	_cacheMargins: function() {
  		this.margins = {
  			left: ( parseInt( this.element.css( "marginLeft" ), 10 ) || 0 ),
  			top: ( parseInt( this.element.css( "marginTop" ), 10 ) || 0 ),
  			right: ( parseInt( this.element.css( "marginRight" ), 10 ) || 0 ),
  			bottom: ( parseInt( this.element.css( "marginBottom" ), 10 ) || 0 )
  		};
  	},
  
  	_cacheHelperProportions: function() {
  		this.helperProportions = {
  			width: this.helper.outerWidth(),
  			height: this.helper.outerHeight()
  		};
  	},
  
  	_setContainment: function() {
  
  		var isUserScrollable, c, ce,
  			o = this.options,
  			document = this.document[ 0 ];
  
  		this.relativeContainer = null;
  
  		if ( !o.containment ) {
  			this.containment = null;
  			return;
  		}
  
  		if ( o.containment === "window" ) {
  			this.containment = [
  				$( window ).scrollLeft() - this.offset.relative.left - this.offset.parent.left,
  				$( window ).scrollTop() - this.offset.relative.top - this.offset.parent.top,
  				$( window ).scrollLeft() + $( window ).width() - this.helperProportions.width - this.margins.left,
  				$( window ).scrollTop() + ( $( window ).height() || document.body.parentNode.scrollHeight ) - this.helperProportions.height - this.margins.top
  			];
  			return;
  		}
  
  		if ( o.containment === "document" ) {
  			this.containment = [
  				0,
  				0,
  				$( document ).width() - this.helperProportions.width - this.margins.left,
  				( $( document ).height() || document.body.parentNode.scrollHeight ) - this.helperProportions.height - this.margins.top
  			];
  			return;
  		}
  
  		if ( o.containment.constructor === Array ) {
  			this.containment = o.containment;
  			return;
  		}
  
  		if ( o.containment === "parent" ) {
  			o.containment = this.helper[ 0 ].parentNode;
  		}
  
  		c = $( o.containment );
  		ce = c[ 0 ];
  
  		if ( !ce ) {
  			return;
  		}
  
  		isUserScrollable = /(scroll|auto)/.test( c.css( "overflow" ) );
  
  		this.containment = [
  			( parseInt( c.css( "borderLeftWidth" ), 10 ) || 0 ) + ( parseInt( c.css( "paddingLeft" ), 10 ) || 0 ),
  			( parseInt( c.css( "borderTopWidth" ), 10 ) || 0 ) + ( parseInt( c.css( "paddingTop" ), 10 ) || 0 ),
  			( isUserScrollable ? Math.max( ce.scrollWidth, ce.offsetWidth ) : ce.offsetWidth ) -
  				( parseInt( c.css( "borderRightWidth" ), 10 ) || 0 ) -
  				( parseInt( c.css( "paddingRight" ), 10 ) || 0 ) -
  				this.helperProportions.width -
  				this.margins.left -
  				this.margins.right,
  			( isUserScrollable ? Math.max( ce.scrollHeight, ce.offsetHeight ) : ce.offsetHeight ) -
  				( parseInt( c.css( "borderBottomWidth" ), 10 ) || 0 ) -
  				( parseInt( c.css( "paddingBottom" ), 10 ) || 0 ) -
  				this.helperProportions.height -
  				this.margins.top -
  				this.margins.bottom
  		];
  		this.relativeContainer = c;
  	},
  
  	_convertPositionTo: function( d, pos ) {
  
  		if ( !pos ) {
  			pos = this.position;
  		}
  
  		var mod = d === "absolute" ? 1 : -1,
  			scrollIsRootNode = this._isRootNode( this.scrollParent[ 0 ] );
  
  		return {
  			top: (
  				pos.top	+																// The absolute mouse position
  				this.offset.relative.top * mod +										// Only for relative positioned nodes: Relative offset from element to offset parent
  				this.offset.parent.top * mod -										// The offsetParent's offset without borders (offset + border)
  				( ( this.cssPosition === "fixed" ? -this.offset.scroll.top : ( scrollIsRootNode ? 0 : this.offset.scroll.top ) ) * mod )
  			),
  			left: (
  				pos.left +																// The absolute mouse position
  				this.offset.relative.left * mod +										// Only for relative positioned nodes: Relative offset from element to offset parent
  				this.offset.parent.left * mod	-										// The offsetParent's offset without borders (offset + border)
  				( ( this.cssPosition === "fixed" ? -this.offset.scroll.left : ( scrollIsRootNode ? 0 : this.offset.scroll.left ) ) * mod )
  			)
  		};
  
  	},
  
  	_generatePosition: function( event, constrainPosition ) {
  
  		var containment, co, top, left,
  			o = this.options,
  			scrollIsRootNode = this._isRootNode( this.scrollParent[ 0 ] ),
  			pageX = event.pageX,
  			pageY = event.pageY;
  
  		// Cache the scroll
  		if ( !scrollIsRootNode || !this.offset.scroll ) {
  			this.offset.scroll = {
  				top: this.scrollParent.scrollTop(),
  				left: this.scrollParent.scrollLeft()
  			};
  		}
  
  		/*
  		 * - Position constraining -
  		 * Constrain the position to a mix of grid, containment.
  		 */
  
  		// If we are not dragging yet, we won't check for options
  		if ( constrainPosition ) {
  			if ( this.containment ) {
  				if ( this.relativeContainer ) {
  					co = this.relativeContainer.offset();
  					containment = [
  						this.containment[ 0 ] + co.left,
  						this.containment[ 1 ] + co.top,
  						this.containment[ 2 ] + co.left,
  						this.containment[ 3 ] + co.top
  					];
  				} else {
  					containment = this.containment;
  				}
  
  				if ( event.pageX - this.offset.click.left < containment[ 0 ] ) {
  					pageX = containment[ 0 ] + this.offset.click.left;
  				}
  				if ( event.pageY - this.offset.click.top < containment[ 1 ] ) {
  					pageY = containment[ 1 ] + this.offset.click.top;
  				}
  				if ( event.pageX - this.offset.click.left > containment[ 2 ] ) {
  					pageX = containment[ 2 ] + this.offset.click.left;
  				}
  				if ( event.pageY - this.offset.click.top > containment[ 3 ] ) {
  					pageY = containment[ 3 ] + this.offset.click.top;
  				}
  			}
  
  			if ( o.grid ) {
  
  				//Check for grid elements set to 0 to prevent divide by 0 error causing invalid argument errors in IE (see ticket #6950)
  				top = o.grid[ 1 ] ? this.originalPageY + Math.round( ( pageY - this.originalPageY ) / o.grid[ 1 ] ) * o.grid[ 1 ] : this.originalPageY;
  				pageY = containment ? ( ( top - this.offset.click.top >= containment[ 1 ] || top - this.offset.click.top > containment[ 3 ] ) ? top : ( ( top - this.offset.click.top >= containment[ 1 ] ) ? top - o.grid[ 1 ] : top + o.grid[ 1 ] ) ) : top;
  
  				left = o.grid[ 0 ] ? this.originalPageX + Math.round( ( pageX - this.originalPageX ) / o.grid[ 0 ] ) * o.grid[ 0 ] : this.originalPageX;
  				pageX = containment ? ( ( left - this.offset.click.left >= containment[ 0 ] || left - this.offset.click.left > containment[ 2 ] ) ? left : ( ( left - this.offset.click.left >= containment[ 0 ] ) ? left - o.grid[ 0 ] : left + o.grid[ 0 ] ) ) : left;
  			}
  
  			if ( o.axis === "y" ) {
  				pageX = this.originalPageX;
  			}
  
  			if ( o.axis === "x" ) {
  				pageY = this.originalPageY;
  			}
  		}
  
  		return {
  			top: (
  				pageY -																	// The absolute mouse position
  				this.offset.click.top	-												// Click offset (relative to the element)
  				this.offset.relative.top -												// Only for relative positioned nodes: Relative offset from element to offset parent
  				this.offset.parent.top +												// The offsetParent's offset without borders (offset + border)
  				( this.cssPosition === "fixed" ? -this.offset.scroll.top : ( scrollIsRootNode ? 0 : this.offset.scroll.top ) )
  			),
  			left: (
  				pageX -																	// The absolute mouse position
  				this.offset.click.left -												// Click offset (relative to the element)
  				this.offset.relative.left -												// Only for relative positioned nodes: Relative offset from element to offset parent
  				this.offset.parent.left +												// The offsetParent's offset without borders (offset + border)
  				( this.cssPosition === "fixed" ? -this.offset.scroll.left : ( scrollIsRootNode ? 0 : this.offset.scroll.left ) )
  			)
  		};
  
  	},
  
  	_clear: function() {
  		this._removeClass( this.helper, "ui-draggable-dragging" );
  		if ( this.helper[ 0 ] !== this.element[ 0 ] && !this.cancelHelperRemoval ) {
  			this.helper.remove();
  		}
  		this.helper = null;
  		this.cancelHelperRemoval = false;
  		if ( this.destroyOnClear ) {
  			this.destroy();
  		}
  	},
  
  	// From now on bulk stuff - mainly helpers
  
  	_trigger: function( type, event, ui ) {
  		ui = ui || this._uiHash();
  		$.ui.plugin.call( this, type, [ event, ui, this ], true );
  
  		// Absolute position and offset (see #6884 ) have to be recalculated after plugins
  		if ( /^(drag|start|stop)/.test( type ) ) {
  			this.positionAbs = this._convertPositionTo( "absolute" );
  			ui.offset = this.positionAbs;
  		}
  		return $.Widget.prototype._trigger.call( this, type, event, ui );
  	},
  
  	plugins: {},
  
  	_uiHash: function() {
  		return {
  			helper: this.helper,
  			position: this.position,
  			originalPosition: this.originalPosition,
  			offset: this.positionAbs
  		};
  	}
  
  } );
  
  $.ui.plugin.add( "draggable", "connectToSortable", {
  	start: function( event, ui, draggable ) {
  		var uiSortable = $.extend( {}, ui, {
  			item: draggable.element
  		} );
  
  		draggable.sortables = [];
  		$( draggable.options.connectToSortable ).each( function() {
  			var sortable = $( this ).sortable( "instance" );
  
  			if ( sortable && !sortable.options.disabled ) {
  				draggable.sortables.push( sortable );
  
  				// RefreshPositions is called at drag start to refresh the containerCache
  				// which is used in drag. This ensures it's initialized and synchronized
  				// with any changes that might have happened on the page since initialization.
  				sortable.refreshPositions();
  				sortable._trigger( "activate", event, uiSortable );
  			}
  		} );
  	},
  	stop: function( event, ui, draggable ) {
  		var uiSortable = $.extend( {}, ui, {
  			item: draggable.element
  		} );
  
  		draggable.cancelHelperRemoval = false;
  
  		$.each( draggable.sortables, function() {
  			var sortable = this;
  
  			if ( sortable.isOver ) {
  				sortable.isOver = 0;
  
  				// Allow this sortable to handle removing the helper
  				draggable.cancelHelperRemoval = true;
  				sortable.cancelHelperRemoval = false;
  
  				// Use _storedCSS To restore properties in the sortable,
  				// as this also handles revert (#9675) since the draggable
  				// may have modified them in unexpected ways (#8809)
  				sortable._storedCSS = {
  					position: sortable.placeholder.css( "position" ),
  					top: sortable.placeholder.css( "top" ),
  					left: sortable.placeholder.css( "left" )
  				};
  
  				sortable._mouseStop( event );
  
  				// Once drag has ended, the sortable should return to using
  				// its original helper, not the shared helper from draggable
  				sortable.options.helper = sortable.options._helper;
  			} else {
  
  				// Prevent this Sortable from removing the helper.
  				// However, don't set the draggable to remove the helper
  				// either as another connected Sortable may yet handle the removal.
  				sortable.cancelHelperRemoval = true;
  
  				sortable._trigger( "deactivate", event, uiSortable );
  			}
  		} );
  	},
  	drag: function( event, ui, draggable ) {
  		$.each( draggable.sortables, function() {
  			var innermostIntersecting = false,
  				sortable = this;
  
  			// Copy over variables that sortable's _intersectsWith uses
  			sortable.positionAbs = draggable.positionAbs;
  			sortable.helperProportions = draggable.helperProportions;
  			sortable.offset.click = draggable.offset.click;
  
  			if ( sortable._intersectsWith( sortable.containerCache ) ) {
  				innermostIntersecting = true;
  
  				$.each( draggable.sortables, function() {
  
  					// Copy over variables that sortable's _intersectsWith uses
  					this.positionAbs = draggable.positionAbs;
  					this.helperProportions = draggable.helperProportions;
  					this.offset.click = draggable.offset.click;
  
  					if ( this !== sortable &&
  							this._intersectsWith( this.containerCache ) &&
  							$.contains( sortable.element[ 0 ], this.element[ 0 ] ) ) {
  						innermostIntersecting = false;
  					}
  
  					return innermostIntersecting;
  				} );
  			}
  
  			if ( innermostIntersecting ) {
  
  				// If it intersects, we use a little isOver variable and set it once,
  				// so that the move-in stuff gets fired only once.
  				if ( !sortable.isOver ) {
  					sortable.isOver = 1;
  
  					// Store draggable's parent in case we need to reappend to it later.
  					draggable._parent = ui.helper.parent();
  
  					sortable.currentItem = ui.helper
  						.appendTo( sortable.element )
  						.data( "ui-sortable-item", true );
  
  					// Store helper option to later restore it
  					sortable.options._helper = sortable.options.helper;
  
  					sortable.options.helper = function() {
  						return ui.helper[ 0 ];
  					};
  
  					// Fire the start events of the sortable with our passed browser event,
  					// and our own helper (so it doesn't create a new one)
  					event.target = sortable.currentItem[ 0 ];
  					sortable._mouseCapture( event, true );
  					sortable._mouseStart( event, true, true );
  
  					// Because the browser event is way off the new appended portlet,
  					// modify necessary variables to reflect the changes
  					sortable.offset.click.top = draggable.offset.click.top;
  					sortable.offset.click.left = draggable.offset.click.left;
  					sortable.offset.parent.left -= draggable.offset.parent.left -
  						sortable.offset.parent.left;
  					sortable.offset.parent.top -= draggable.offset.parent.top -
  						sortable.offset.parent.top;
  
  					draggable._trigger( "toSortable", event );
  
  					// Inform draggable that the helper is in a valid drop zone,
  					// used solely in the revert option to handle "valid/invalid".
  					draggable.dropped = sortable.element;
  
  					// Need to refreshPositions of all sortables in the case that
  					// adding to one sortable changes the location of the other sortables (#9675)
  					$.each( draggable.sortables, function() {
  						this.refreshPositions();
  					} );
  
  					// Hack so receive/update callbacks work (mostly)
  					draggable.currentItem = draggable.element;
  					sortable.fromOutside = draggable;
  				}
  
  				if ( sortable.currentItem ) {
  					sortable._mouseDrag( event );
  
  					// Copy the sortable's position because the draggable's can potentially reflect
  					// a relative position, while sortable is always absolute, which the dragged
  					// element has now become. (#8809)
  					ui.position = sortable.position;
  				}
  			} else {
  
  				// If it doesn't intersect with the sortable, and it intersected before,
  				// we fake the drag stop of the sortable, but make sure it doesn't remove
  				// the helper by using cancelHelperRemoval.
  				if ( sortable.isOver ) {
  
  					sortable.isOver = 0;
  					sortable.cancelHelperRemoval = true;
  
  					// Calling sortable's mouseStop would trigger a revert,
  					// so revert must be temporarily false until after mouseStop is called.
  					sortable.options._revert = sortable.options.revert;
  					sortable.options.revert = false;
  
  					sortable._trigger( "out", event, sortable._uiHash( sortable ) );
  					sortable._mouseStop( event, true );
  
  					// Restore sortable behaviors that were modfied
  					// when the draggable entered the sortable area (#9481)
  					sortable.options.revert = sortable.options._revert;
  					sortable.options.helper = sortable.options._helper;
  
  					if ( sortable.placeholder ) {
  						sortable.placeholder.remove();
  					}
  
  					// Restore and recalculate the draggable's offset considering the sortable
  					// may have modified them in unexpected ways. (#8809, #10669)
  					ui.helper.appendTo( draggable._parent );
  					draggable._refreshOffsets( event );
  					ui.position = draggable._generatePosition( event, true );
  
  					draggable._trigger( "fromSortable", event );
  
  					// Inform draggable that the helper is no longer in a valid drop zone
  					draggable.dropped = false;
  
  					// Need to refreshPositions of all sortables just in case removing
  					// from one sortable changes the location of other sortables (#9675)
  					$.each( draggable.sortables, function() {
  						this.refreshPositions();
  					} );
  				}
  			}
  		} );
  	}
  } );
  
  $.ui.plugin.add( "draggable", "cursor", {
  	start: function( event, ui, instance ) {
  		var t = $( "body" ),
  			o = instance.options;
  
  		if ( t.css( "cursor" ) ) {
  			o._cursor = t.css( "cursor" );
  		}
  		t.css( "cursor", o.cursor );
  	},
  	stop: function( event, ui, instance ) {
  		var o = instance.options;
  		if ( o._cursor ) {
  			$( "body" ).css( "cursor", o._cursor );
  		}
  	}
  } );
  
  $.ui.plugin.add( "draggable", "opacity", {
  	start: function( event, ui, instance ) {
  		var t = $( ui.helper ),
  			o = instance.options;
  		if ( t.css( "opacity" ) ) {
  			o._opacity = t.css( "opacity" );
  		}
  		t.css( "opacity", o.opacity );
  	},
  	stop: function( event, ui, instance ) {
  		var o = instance.options;
  		if ( o._opacity ) {
  			$( ui.helper ).css( "opacity", o._opacity );
  		}
  	}
  } );
  
  $.ui.plugin.add( "draggable", "scroll", {
  	start: function( event, ui, i ) {
  		if ( !i.scrollParentNotHidden ) {
  			i.scrollParentNotHidden = i.helper.scrollParent( false );
  		}
  
  		if ( i.scrollParentNotHidden[ 0 ] !== i.document[ 0 ] && i.scrollParentNotHidden[ 0 ].tagName !== "HTML" ) {
  			i.overflowOffset = i.scrollParentNotHidden.offset();
  		}
  	},
  	drag: function( event, ui, i  ) {
  
  		var o = i.options,
  			scrolled = false,
  			scrollParent = i.scrollParentNotHidden[ 0 ],
  			document = i.document[ 0 ];
  
  		if ( scrollParent !== document && scrollParent.tagName !== "HTML" ) {
  			if ( !o.axis || o.axis !== "x" ) {
  				if ( ( i.overflowOffset.top + scrollParent.offsetHeight ) - event.pageY < o.scrollSensitivity ) {
  					scrollParent.scrollTop = scrolled = scrollParent.scrollTop + o.scrollSpeed;
  				} else if ( event.pageY - i.overflowOffset.top < o.scrollSensitivity ) {
  					scrollParent.scrollTop = scrolled = scrollParent.scrollTop - o.scrollSpeed;
  				}
  			}
  
  			if ( !o.axis || o.axis !== "y" ) {
  				if ( ( i.overflowOffset.left + scrollParent.offsetWidth ) - event.pageX < o.scrollSensitivity ) {
  					scrollParent.scrollLeft = scrolled = scrollParent.scrollLeft + o.scrollSpeed;
  				} else if ( event.pageX - i.overflowOffset.left < o.scrollSensitivity ) {
  					scrollParent.scrollLeft = scrolled = scrollParent.scrollLeft - o.scrollSpeed;
  				}
  			}
  
  		} else {
  
  			if ( !o.axis || o.axis !== "x" ) {
  				if ( event.pageY - $( document ).scrollTop() < o.scrollSensitivity ) {
  					scrolled = $( document ).scrollTop( $( document ).scrollTop() - o.scrollSpeed );
  				} else if ( $( window ).height() - ( event.pageY - $( document ).scrollTop() ) < o.scrollSensitivity ) {
  					scrolled = $( document ).scrollTop( $( document ).scrollTop() + o.scrollSpeed );
  				}
  			}
  
  			if ( !o.axis || o.axis !== "y" ) {
  				if ( event.pageX - $( document ).scrollLeft() < o.scrollSensitivity ) {
  					scrolled = $( document ).scrollLeft( $( document ).scrollLeft() - o.scrollSpeed );
  				} else if ( $( window ).width() - ( event.pageX - $( document ).scrollLeft() ) < o.scrollSensitivity ) {
  					scrolled = $( document ).scrollLeft( $( document ).scrollLeft() + o.scrollSpeed );
  				}
  			}
  
  		}
  
  		if ( scrolled !== false && $.ui.ddmanager && !o.dropBehaviour ) {
  			$.ui.ddmanager.prepareOffsets( i, event );
  		}
  
  	}
  } );
  
  $.ui.plugin.add( "draggable", "snap", {
  	start: function( event, ui, i ) {
  
  		var o = i.options;
  
  		i.snapElements = [];
  
  		$( o.snap.constructor !== String ? ( o.snap.items || ":data(ui-draggable)" ) : o.snap ).each( function() {
  			var $t = $( this ),
  				$o = $t.offset();
  			if ( this !== i.element[ 0 ] ) {
  				i.snapElements.push( {
  					item: this,
  					width: $t.outerWidth(), height: $t.outerHeight(),
  					top: $o.top, left: $o.left
  				} );
  			}
  		} );
  
  	},
  	drag: function( event, ui, inst ) {
  
  		var ts, bs, ls, rs, l, r, t, b, i, first,
  			o = inst.options,
  			d = o.snapTolerance,
  			x1 = ui.offset.left, x2 = x1 + inst.helperProportions.width,
  			y1 = ui.offset.top, y2 = y1 + inst.helperProportions.height;
  
  		for ( i = inst.snapElements.length - 1; i >= 0; i-- ) {
  
  			l = inst.snapElements[ i ].left - inst.margins.left;
  			r = l + inst.snapElements[ i ].width;
  			t = inst.snapElements[ i ].top - inst.margins.top;
  			b = t + inst.snapElements[ i ].height;
  
  			if ( x2 < l - d || x1 > r + d || y2 < t - d || y1 > b + d || !$.contains( inst.snapElements[ i ].item.ownerDocument, inst.snapElements[ i ].item ) ) {
  				if ( inst.snapElements[ i ].snapping ) {
  					( inst.options.snap.release && inst.options.snap.release.call( inst.element, event, $.extend( inst._uiHash(), { snapItem: inst.snapElements[ i ].item } ) ) );
  				}
  				inst.snapElements[ i ].snapping = false;
  				continue;
  			}
  
  			if ( o.snapMode !== "inner" ) {
  				ts = Math.abs( t - y2 ) <= d;
  				bs = Math.abs( b - y1 ) <= d;
  				ls = Math.abs( l - x2 ) <= d;
  				rs = Math.abs( r - x1 ) <= d;
  				if ( ts ) {
  					ui.position.top = inst._convertPositionTo( "relative", { top: t - inst.helperProportions.height, left: 0 } ).top;
  				}
  				if ( bs ) {
  					ui.position.top = inst._convertPositionTo( "relative", { top: b, left: 0 } ).top;
  				}
  				if ( ls ) {
  					ui.position.left = inst._convertPositionTo( "relative", { top: 0, left: l - inst.helperProportions.width } ).left;
  				}
  				if ( rs ) {
  					ui.position.left = inst._convertPositionTo( "relative", { top: 0, left: r } ).left;
  				}
  			}
  
  			first = ( ts || bs || ls || rs );
  
  			if ( o.snapMode !== "outer" ) {
  				ts = Math.abs( t - y1 ) <= d;
  				bs = Math.abs( b - y2 ) <= d;
  				ls = Math.abs( l - x1 ) <= d;
  				rs = Math.abs( r - x2 ) <= d;
  				if ( ts ) {
  					ui.position.top = inst._convertPositionTo( "relative", { top: t, left: 0 } ).top;
  				}
  				if ( bs ) {
  					ui.position.top = inst._convertPositionTo( "relative", { top: b - inst.helperProportions.height, left: 0 } ).top;
  				}
  				if ( ls ) {
  					ui.position.left = inst._convertPositionTo( "relative", { top: 0, left: l } ).left;
  				}
  				if ( rs ) {
  					ui.position.left = inst._convertPositionTo( "relative", { top: 0, left: r - inst.helperProportions.width } ).left;
  				}
  			}
  
  			if ( !inst.snapElements[ i ].snapping && ( ts || bs || ls || rs || first ) ) {
  				( inst.options.snap.snap && inst.options.snap.snap.call( inst.element, event, $.extend( inst._uiHash(), { snapItem: inst.snapElements[ i ].item } ) ) );
  			}
  			inst.snapElements[ i ].snapping = ( ts || bs || ls || rs || first );
  
  		}
  
  	}
  } );
  
  $.ui.plugin.add( "draggable", "stack", {
  	start: function( event, ui, instance ) {
  		var min,
  			o = instance.options,
  			group = $.makeArray( $( o.stack ) ).sort( function( a, b ) {
  				return ( parseInt( $( a ).css( "zIndex" ), 10 ) || 0 ) - ( parseInt( $( b ).css( "zIndex" ), 10 ) || 0 );
  			} );
  
  		if ( !group.length ) { return; }
  
  		min = parseInt( $( group[ 0 ] ).css( "zIndex" ), 10 ) || 0;
  		$( group ).each( function( i ) {
  			$( this ).css( "zIndex", min + i );
  		} );
  		this.css( "zIndex", ( min + group.length ) );
  	}
  } );
  
  $.ui.plugin.add( "draggable", "zIndex", {
  	start: function( event, ui, instance ) {
  		var t = $( ui.helper ),
  			o = instance.options;
  
  		if ( t.css( "zIndex" ) ) {
  			o._zIndex = t.css( "zIndex" );
  		}
  		t.css( "zIndex", o.zIndex );
  	},
  	stop: function( event, ui, instance ) {
  		var o = instance.options;
  
  		if ( o._zIndex ) {
  			$( ui.helper ).css( "zIndex", o._zIndex );
  		}
  	}
  } );
  
  return $.ui.draggable;
  
  } ) );
  
  /*!
   * jQuery UI Droppable @VERSION
   * http://jqueryui.com
   *
   * Copyright jQuery Foundation and other contributors
   * Released under the MIT license.
   * http://jquery.org/license
   */
  
  //>>label: Droppable
  //>>group: Interactions
  //>>description: Enables drop targets for draggable elements.
  //>>docs: http://api.jqueryui.com/droppable/
  //>>demos: http://jqueryui.com/droppable/
  
  ( function( factory ) {
  	if ( typeof define === "function" && define.amd ) {
  
  		// AMD. Register as an anonymous module.
  		define( [
  			"jquery",
  			"./draggable",
  			"./mouse",
  			"../version",
  			"../widget"
  		], factory );
  	} else {
  
  		// Browser globals
  		factory( jQuery );
  	}
  }( function( $ ) {
  
  $.widget( "ui.droppable", {
  	version: "@VERSION",
  	widgetEventPrefix: "drop",
  	options: {
  		accept: "*",
  		addClasses: true,
  		greedy: false,
  		scope: "default",
  		tolerance: "intersect",
  
  		// Callbacks
  		activate: null,
  		deactivate: null,
  		drop: null,
  		out: null,
  		over: null
  	},
  	_create: function() {
  
  		var proportions,
  			o = this.options,
  			accept = o.accept;
  
  		this.isover = false;
  		this.isout = true;
  
  		this.accept = $.isFunction( accept ) ? accept : function( d ) {
  			return d.is( accept );
  		};
  
  		this.proportions = function( /* valueToWrite */ ) {
  			if ( arguments.length ) {
  
  				// Store the droppable's proportions
  				proportions = arguments[ 0 ];
  			} else {
  
  				// Retrieve or derive the droppable's proportions
  				return proportions ?
  					proportions :
  					proportions = {
  						width: this.element[ 0 ].offsetWidth,
  						height: this.element[ 0 ].offsetHeight
  					};
  			}
  		};
  
  		this._addToManager( o.scope );
  
  		o.addClasses && this._addClass( "ui-droppable" );
  
  	},
  
  	_addToManager: function( scope ) {
  
  		// Add the reference and positions to the manager
  		$.ui.ddmanager.droppables[ scope ] = $.ui.ddmanager.droppables[ scope ] || [];
  		$.ui.ddmanager.droppables[ scope ].push( this );
  	},
  
  	_splice: function( drop ) {
  		var i = 0;
  		for ( ; i < drop.length; i++ ) {
  			if ( drop[ i ] === this ) {
  				drop.splice( i, 1 );
  			}
  		}
  	},
  
  	_destroy: function() {
  		var drop = $.ui.ddmanager.droppables[ this.options.scope ];
  
  		this._splice( drop );
  	},
  
  	_setOption: function( key, value ) {
  
  		if ( key === "accept" ) {
  			this.accept = $.isFunction( value ) ? value : function( d ) {
  				return d.is( value );
  			};
  		} else if ( key === "scope" ) {
  			var drop = $.ui.ddmanager.droppables[ this.options.scope ];
  
  			this._splice( drop );
  			this._addToManager( value );
  		}
  
  		this._super( key, value );
  	},
  
  	_activate: function( event ) {
  		var draggable = $.ui.ddmanager.current;
  
  		this._addActiveClass();
  		if ( draggable ) {
  			this._trigger( "activate", event, this.ui( draggable ) );
  		}
  	},
  
  	_deactivate: function( event ) {
  		var draggable = $.ui.ddmanager.current;
  
  		this._removeActiveClass();
  		if ( draggable ) {
  			this._trigger( "deactivate", event, this.ui( draggable ) );
  		}
  	},
  
  	_over: function( event ) {
  
  		var draggable = $.ui.ddmanager.current;
  
  		// Bail if draggable and droppable are same element
  		if ( !draggable || ( draggable.currentItem || draggable.element )[ 0 ] === this.element[ 0 ] ) {
  			return;
  		}
  
  		if ( this.accept.call( this.element[ 0 ], ( draggable.currentItem || draggable.element ) ) ) {
  			this._addHoverClass();
  			this._trigger( "over", event, this.ui( draggable ) );
  		}
  
  	},
  
  	_out: function( event ) {
  
  		var draggable = $.ui.ddmanager.current;
  
  		// Bail if draggable and droppable are same element
  		if ( !draggable || ( draggable.currentItem || draggable.element )[ 0 ] === this.element[ 0 ] ) {
  			return;
  		}
  
  		if ( this.accept.call( this.element[ 0 ], ( draggable.currentItem || draggable.element ) ) ) {
  			this._removeHoverClass();
  			this._trigger( "out", event, this.ui( draggable ) );
  		}
  
  	},
  
  	_drop: function( event, custom ) {
  
  		var draggable = custom || $.ui.ddmanager.current,
  			childrenIntersection = false;
  
  		// Bail if draggable and droppable are same element
  		if ( !draggable || ( draggable.currentItem || draggable.element )[ 0 ] === this.element[ 0 ] ) {
  			return false;
  		}
  
  		this.element.find( ":data(ui-droppable)" ).not( ".ui-draggable-dragging" ).each( function() {
  			var inst = $( this ).droppable( "instance" );
  			if (
  				inst.options.greedy &&
  				!inst.options.disabled &&
  				inst.options.scope === draggable.options.scope &&
  				inst.accept.call( inst.element[ 0 ], ( draggable.currentItem || draggable.element ) ) &&
  				intersect( draggable, $.extend( inst, { offset: inst.element.offset() } ), inst.options.tolerance, event )
  			) { childrenIntersection = true; return false; }
  		} );
  		if ( childrenIntersection ) {
  			return false;
  		}
  
  		if ( this.accept.call( this.element[ 0 ], ( draggable.currentItem || draggable.element ) ) ) {
  			this._removeActiveClass();
  			this._removeHoverClass();
  
  			this._trigger( "drop", event, this.ui( draggable ) );
  			return this.element;
  		}
  
  		return false;
  
  	},
  
  	ui: function( c ) {
  		return {
  			draggable: ( c.currentItem || c.element ),
  			helper: c.helper,
  			position: c.position,
  			offset: c.positionAbs
  		};
  	},
  
  	// Extension points just to make backcompat sane and avoid duplicating logic
  	// TODO: Remove in 1.13 along with call to it below
  	_addHoverClass: function() {
  		this._addClass( "ui-droppable-hover" );
  	},
  
  	_removeHoverClass: function() {
  		this._removeClass( "ui-droppable-hover" );
  	},
  
  	_addActiveClass: function() {
  		this._addClass( "ui-droppable-active" );
  	},
  
  	_removeActiveClass: function() {
  		this._removeClass( "ui-droppable-active" );
  	}
  } );
  
  var intersect = ( function() {
  	function isOverAxis( x, reference, size ) {
  		return ( x >= reference ) && ( x < ( reference + size ) );
  	}
  
  	return function( draggable, droppable, toleranceMode, event ) {
  
  		if ( !droppable.offset ) {
  			return false;
  		}
  
  		var x1 = ( draggable.positionAbs || draggable.position.absolute ).left + draggable.margins.left,
  			y1 = ( draggable.positionAbs || draggable.position.absolute ).top + draggable.margins.top,
  			x2 = x1 + draggable.helperProportions.width,
  			y2 = y1 + draggable.helperProportions.height,
  			l = droppable.offset.left,
  			t = droppable.offset.top,
  			r = l + droppable.proportions().width,
  			b = t + droppable.proportions().height;
  
  		switch ( toleranceMode ) {
  		case "fit":
  			return ( l <= x1 && x2 <= r && t <= y1 && y2 <= b );
  		case "intersect":
  			return ( l < x1 + ( draggable.helperProportions.width / 2 ) && // Right Half
  				x2 - ( draggable.helperProportions.width / 2 ) < r && // Left Half
  				t < y1 + ( draggable.helperProportions.height / 2 ) && // Bottom Half
  				y2 - ( draggable.helperProportions.height / 2 ) < b ); // Top Half
  		case "pointer":
  			return isOverAxis( event.pageY, t, droppable.proportions().height ) && isOverAxis( event.pageX, l, droppable.proportions().width );
  		case "touch":
  			return (
  				( y1 >= t && y1 <= b ) || // Top edge touching
  				( y2 >= t && y2 <= b ) || // Bottom edge touching
  				( y1 < t && y2 > b ) // Surrounded vertically
  			) && (
  				( x1 >= l && x1 <= r ) || // Left edge touching
  				( x2 >= l && x2 <= r ) || // Right edge touching
  				( x1 < l && x2 > r ) // Surrounded horizontally
  			);
  		default:
  			return false;
  		}
  	};
  } )();
  
  /*
  	This manager tracks offsets of draggables and droppables
  */
  $.ui.ddmanager = {
  	current: null,
  	droppables: { "default": [] },
  	prepareOffsets: function( t, event ) {
  
  		var i, j,
  			m = $.ui.ddmanager.droppables[ t.options.scope ] || [],
  			type = event ? event.type : null, // workaround for #2317
  			list = ( t.currentItem || t.element ).find( ":data(ui-droppable)" ).addBack();
  
  		droppablesLoop: for ( i = 0; i < m.length; i++ ) {
  
  			// No disabled and non-accepted
  			if ( m[ i ].options.disabled || ( t && !m[ i ].accept.call( m[ i ].element[ 0 ], ( t.currentItem || t.element ) ) ) ) {
  				continue;
  			}
  
  			// Filter out elements in the current dragged item
  			for ( j = 0; j < list.length; j++ ) {
  				if ( list[ j ] === m[ i ].element[ 0 ] ) {
  					m[ i ].proportions().height = 0;
  					continue droppablesLoop;
  				}
  			}
  
  			m[ i ].visible = m[ i ].element.css( "display" ) !== "none";
  			if ( !m[ i ].visible ) {
  				continue;
  			}
  
  			// Activate the droppable if used directly from draggables
  			if ( type === "mousedown" ) {
  				m[ i ]._activate.call( m[ i ], event );
  			}
  
  			m[ i ].offset = m[ i ].element.offset();
  			m[ i ].proportions( { width: m[ i ].element[ 0 ].offsetWidth, height: m[ i ].element[ 0 ].offsetHeight } );
  
  		}
  
  	},
  	drop: function( draggable, event ) {
  
  		var dropped = false;
  
  		// Create a copy of the droppables in case the list changes during the drop (#9116)
  		$.each( ( $.ui.ddmanager.droppables[ draggable.options.scope ] || [] ).slice(), function() {
  
  			if ( !this.options ) {
  				return;
  			}
  			if ( !this.options.disabled && this.visible && intersect( draggable, this, this.options.tolerance, event ) ) {
  				dropped = this._drop.call( this, event ) || dropped;
  			}
  
  			if ( !this.options.disabled && this.visible && this.accept.call( this.element[ 0 ], ( draggable.currentItem || draggable.element ) ) ) {
  				this.isout = true;
  				this.isover = false;
  				this._deactivate.call( this, event );
  			}
  
  		} );
  		return dropped;
  
  	},
  	dragStart: function( draggable, event ) {
  
  		// Listen for scrolling so that if the dragging causes scrolling the position of the droppables can be recalculated (see #5003)
  		draggable.element.parentsUntil( "body" ).on( "scroll.droppable", function() {
  			if ( !draggable.options.refreshPositions ) {
  				$.ui.ddmanager.prepareOffsets( draggable, event );
  			}
  		} );
  	},
  	drag: function( draggable, event ) {
  
  		// If you have a highly dynamic page, you might try this option. It renders positions every time you move the mouse.
  		if ( draggable.options.refreshPositions ) {
  			$.ui.ddmanager.prepareOffsets( draggable, event );
  		}
  
  		// Run through all droppables and check their positions based on specific tolerance options
  		$.each( $.ui.ddmanager.droppables[ draggable.options.scope ] || [], function() {
  
  			if ( this.options.disabled || this.greedyChild || !this.visible ) {
  				return;
  			}
  
  			var parentInstance, scope, parent,
  				intersects = intersect( draggable, this, this.options.tolerance, event ),
  				c = !intersects && this.isover ? "isout" : ( intersects && !this.isover ? "isover" : null );
  			if ( !c ) {
  				return;
  			}
  
  			if ( this.options.greedy ) {
  
  				// find droppable parents with same scope
  				scope = this.options.scope;
  				parent = this.element.parents( ":data(ui-droppable)" ).filter( function() {
  					return $( this ).droppable( "instance" ).options.scope === scope;
  				} );
  
  				if ( parent.length ) {
  					parentInstance = $( parent[ 0 ] ).droppable( "instance" );
  					parentInstance.greedyChild = ( c === "isover" );
  				}
  			}
  
  			// We just moved into a greedy child
  			if ( parentInstance && c === "isover" ) {
  				parentInstance.isover = false;
  				parentInstance.isout = true;
  				parentInstance._out.call( parentInstance, event );
  			}
  
  			this[ c ] = true;
  			this[ c === "isout" ? "isover" : "isout" ] = false;
  			this[ c === "isover" ? "_over" : "_out" ].call( this, event );
  
  			// We just moved out of a greedy child
  			if ( parentInstance && c === "isout" ) {
  				parentInstance.isout = false;
  				parentInstance.isover = true;
  				parentInstance._over.call( parentInstance, event );
  			}
  		} );
  
  	},
  	dragStop: function( draggable, event ) {
  		draggable.element.parentsUntil( "body" ).off( "scroll.droppable" );
  
  		// Call prepareOffsets one final time since IE does not fire return scroll events when overflow was caused by drag (see #5003)
  		if ( !draggable.options.refreshPositions ) {
  			$.ui.ddmanager.prepareOffsets( draggable, event );
  		}
  	}
  };
  
  // DEPRECATED
  // TODO: switch return back to widget declaration at top of file when this is removed
  if ( $.uiBackCompat !== false ) {
  
  	// Backcompat for activeClass and hoverClass options
  	$.widget( "ui.droppable", $.ui.droppable, {
  		options: {
  			hoverClass: false,
  			activeClass: false
  		},
  		_addActiveClass: function() {
  			this._super();
  			if ( this.options.activeClass ) {
  				this.element.addClass( this.options.activeClass );
  			}
  		},
  		_removeActiveClass: function() {
  			this._super();
  			if ( this.options.activeClass ) {
  				this.element.removeClass( this.options.activeClass );
  			}
  		},
  		_addHoverClass: function() {
  			this._super();
  			if ( this.options.hoverClass ) {
  				this.element.addClass( this.options.hoverClass );
  			}
  		},
  		_removeHoverClass: function() {
  			this._super();
  			if ( this.options.hoverClass ) {
  				this.element.removeClass( this.options.hoverClass );
  			}
  		}
  	} );
  }
  
  return $.ui.droppable;
  
  } ) );
  
  /*!
   * jQuery UI Resizable @VERSION
   * 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
  
  ( function( factory ) {
  	if ( typeof define === "function" && define.amd ) {
  
  		// AMD. Register as an anonymous module.
  		define( [
  			"jquery",
  			"./mouse",
  			"../disable-selection",
  			"../plugin",
  			"../version",
  			"../widget"
  		], factory );
  	} else {
  
  		// Browser globals
  		factory( jQuery );
  	}
  }( function( $ ) {
  
  $.widget( "ui.resizable", $.ui.mouse, {
  	version: "@VERSION",
  	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 n, i, handle, axis, hname, margins,
  			that = this,
  			o = this.options;
  		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.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" );
  			$( 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;
  	},
  
  	_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.position.top + this.size.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;
  			}
  		}
  	}
  
  } );
  
  return $.ui.resizable;
  
  } ) );
  
  /*!
   * jQuery UI Selectable @VERSION
   * http://jqueryui.com
   *
   * Copyright jQuery Foundation and other contributors
   * Released under the MIT license.
   * http://jquery.org/license
   */
  
  //>>label: Selectable
  //>>group: Interactions
  //>>description: Allows groups of elements to be selected with the mouse.
  //>>docs: http://api.jqueryui.com/selectable/
  //>>demos: http://jqueryui.com/selectable/
  //>>css.structure: ../../themes/base/selectable.css
  
  ( function( factory ) {
  	if ( typeof define === "function" && define.amd ) {
  
  		// AMD. Register as an anonymous module.
  		define( [
  			"jquery",
  			"./mouse",
  			"../version",
  			"../widget"
  		], factory );
  	} else {
  
  		// Browser globals
  		factory( jQuery );
  	}
  }( function( $ ) {
  
  return $.widget( "ui.selectable", $.ui.mouse, {
  	version: "@VERSION",
  	options: {
  		appendTo: "body",
  		autoRefresh: true,
  		distance: 0,
  		filter: "*",
  		tolerance: "touch",
  
  		// Callbacks
  		selected: null,
  		selecting: null,
  		start: null,
  		stop: null,
  		unselected: null,
  		unselecting: null
  	},
  	_create: function() {
  		var that = this;
  
  		this._addClass( "ui-selectable" );
  
  		this.dragged = false;
  
  		// Cache selectee children based on filter
  		this.refresh = function() {
  			that.selectees = $( that.options.filter, that.element[ 0 ] );
  			that._addClass( that.selectees, "ui-selectee" );
  			that.selectees.each( function() {
  				var $this = $( this ),
  					pos = $this.offset();
  				$.data( this, "selectable-item", {
  					element: this,
  					$element: $this,
  					left: pos.left,
  					top: pos.top,
  					right: pos.left + $this.outerWidth(),
  					bottom: pos.top + $this.outerHeight(),
  					startselected: false,
  					selected: $this.hasClass( "ui-selected" ),
  					selecting: $this.hasClass( "ui-selecting" ),
  					unselecting: $this.hasClass( "ui-unselecting" )
  				} );
  			} );
  		};
  		this.refresh();
  
  		this._mouseInit();
  
  		this.helper = $( "<div>" );
  		this._addClass( this.helper, "ui-selectable-helper" );
  	},
  
  	_destroy: function() {
  		this.selectees.removeData( "selectable-item" );
  		this._mouseDestroy();
  	},
  
  	_mouseStart: function( event ) {
  		var that = this,
  			options = this.options;
  
  		this.opos = [ event.pageX, event.pageY ];
  
  		if ( this.options.disabled ) {
  			return;
  		}
  
  		this.selectees = $( options.filter, this.element[ 0 ] );
  
  		this._trigger( "start", event );
  
  		$( options.appendTo ).append( this.helper );
  
  		// position helper (lasso)
  		this.helper.css( {
  			"left": event.pageX,
  			"top": event.pageY,
  			"width": 0,
  			"height": 0
  		} );
  
  		if ( options.autoRefresh ) {
  			this.refresh();
  		}
  
  		this.selectees.filter( ".ui-selected" ).each( function() {
  			var selectee = $.data( this, "selectable-item" );
  			selectee.startselected = true;
  			if ( !event.metaKey && !event.ctrlKey ) {
  				that._removeClass( selectee.$element, "ui-selected" );
  				selectee.selected = false;
  				that._addClass( selectee.$element, "ui-unselecting" );
  				selectee.unselecting = true;
  
  				// selectable UNSELECTING callback
  				that._trigger( "unselecting", event, {
  					unselecting: selectee.element
  				} );
  			}
  		} );
  
  		$( event.target ).parents().addBack().each( function() {
  			var doSelect,
  				selectee = $.data( this, "selectable-item" );
  			if ( selectee ) {
  				doSelect = ( !event.metaKey && !event.ctrlKey ) || !selectee.$element.hasClass( "ui-selected" );
  				that._removeClass( selectee.$element, doSelect ? "ui-unselecting" : "ui-selected" )
  					._addClass( selectee.$element, doSelect ? "ui-selecting" : "ui-unselecting" );
  				selectee.unselecting = !doSelect;
  				selectee.selecting = doSelect;
  				selectee.selected = doSelect;
  
  				// selectable (UN)SELECTING callback
  				if ( doSelect ) {
  					that._trigger( "selecting", event, {
  						selecting: selectee.element
  					} );
  				} else {
  					that._trigger( "unselecting", event, {
  						unselecting: selectee.element
  					} );
  				}
  				return false;
  			}
  		} );
  
  	},
  
  	_mouseDrag: function( event ) {
  
  		this.dragged = true;
  
  		if ( this.options.disabled ) {
  			return;
  		}
  
  		var tmp,
  			that = this,
  			options = this.options,
  			x1 = this.opos[ 0 ],
  			y1 = this.opos[ 1 ],
  			x2 = event.pageX,
  			y2 = event.pageY;
  
  		if ( x1 > x2 ) { tmp = x2; x2 = x1; x1 = tmp; }
  		if ( y1 > y2 ) { tmp = y2; y2 = y1; y1 = tmp; }
  		this.helper.css( { left: x1, top: y1, width: x2 - x1, height: y2 - y1 } );
  
  		this.selectees.each( function() {
  			var selectee = $.data( this, "selectable-item" ),
  				hit = false;
  
  			//prevent helper from being selected if appendTo: selectable
  			if ( !selectee || selectee.element === that.element[ 0 ] ) {
  				return;
  			}
  
  			if ( options.tolerance === "touch" ) {
  				hit = ( !( selectee.left > x2 || selectee.right < x1 || selectee.top > y2 || selectee.bottom < y1 ) );
  			} else if ( options.tolerance === "fit" ) {
  				hit = ( selectee.left > x1 && selectee.right < x2 && selectee.top > y1 && selectee.bottom < y2 );
  			}
  
  			if ( hit ) {
  
  				// SELECT
  				if ( selectee.selected ) {
  					that._removeClass( selectee.$element, "ui-selected" );
  					selectee.selected = false;
  				}
  				if ( selectee.unselecting ) {
  					that._removeClass( selectee.$element, "ui-unselecting" );
  					selectee.unselecting = false;
  				}
  				if ( !selectee.selecting ) {
  					that._addClass( selectee.$element, "ui-selecting" );
  					selectee.selecting = true;
  
  					// selectable SELECTING callback
  					that._trigger( "selecting", event, {
  						selecting: selectee.element
  					} );
  				}
  			} else {
  
  				// UNSELECT
  				if ( selectee.selecting ) {
  					if ( ( event.metaKey || event.ctrlKey ) && selectee.startselected ) {
  						that._removeClass( selectee.$element, "ui-selecting" );
  						selectee.selecting = false;
  						that._addClass( selectee.$element, "ui-selected" );
  						selectee.selected = true;
  					} else {
  						that._removeClass( selectee.$element, "ui-selecting" );
  						selectee.selecting = false;
  						if ( selectee.startselected ) {
  							that._addClass( selectee.$element, "ui-unselecting" );
  							selectee.unselecting = true;
  						}
  
  						// selectable UNSELECTING callback
  						that._trigger( "unselecting", event, {
  							unselecting: selectee.element
  						} );
  					}
  				}
  				if ( selectee.selected ) {
  					if ( !event.metaKey && !event.ctrlKey && !selectee.startselected ) {
  						that._removeClass( selectee.$element, "ui-selected" );
  						selectee.selected = false;
  
  						that._addClass( selectee.$element, "ui-unselecting" );
  						selectee.unselecting = true;
  
  						// selectable UNSELECTING callback
  						that._trigger( "unselecting", event, {
  							unselecting: selectee.element
  						} );
  					}
  				}
  			}
  		} );
  
  		return false;
  	},
  
  	_mouseStop: function( event ) {
  		var that = this;
  
  		this.dragged = false;
  
  		$( ".ui-unselecting", this.element[ 0 ] ).each( function() {
  			var selectee = $.data( this, "selectable-item" );
  			that._removeClass( selectee.$element, "ui-unselecting" );
  			selectee.unselecting = false;
  			selectee.startselected = false;
  			that._trigger( "unselected", event, {
  				unselected: selectee.element
  			} );
  		} );
  		$( ".ui-selecting", this.element[ 0 ] ).each( function() {
  			var selectee = $.data( this, "selectable-item" );
  			that._removeClass( selectee.$element, "ui-selecting" )
  				._addClass( selectee.$element, "ui-selected" );
  			selectee.selecting = false;
  			selectee.selected = true;
  			selectee.startselected = true;
  			that._trigger( "selected", event, {
  				selected: selectee.element
  			} );
  		} );
  		this._trigger( "stop", event );
  
  		this.helper.remove();
  
  		return false;
  	}
  
  } );
  
  } ) );
  
  /*!
   * jQuery UI Sortable @VERSION
   * 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
  
  ( function( factory ) {
  	if ( typeof define === "function" && define.amd ) {
  
  		// AMD. Register as an anonymous module.
  		define( [
  			"jquery",
  			"./mouse",
  			"../data",
  			"../ie",
  			"../scroll-parent",
  			"../version",
  			"../widget"
  		], factory );
  	} else {
  
  		// Browser globals
  		factory( jQuery );
  	}
  }( function( $ ) {
  
  return $.widget( "ui.sortable", $.ui.mouse, {
  	version: "@VERSION",
  	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(),
  			relative: this._getRelativeOffset() //This is a relative to absolute position minus the actual position calculation - only used for relative positioned helper
  		} );
  
  		// 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" );
  		this._mouseDrag( event ); //Execute the drag once - this causes the helper not to be visible before getting its correct position
  		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( { 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();
  
  		if ( connectWith && this.ready ) { //Shouldn't be run the first time through due to massive slow-down
  			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 ] );
  
  				item.data( this.widgetName + "-item", targetData ); // Data for target checking (mouse manager)
  
  				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 ? "clientX" : "clientY";
  
  			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.width() : 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: (
  				pos.top	+																// The absolute mouse position
  				this.offset.relative.top * mod +										// Only for relative positioned nodes: Relative offset from element to offset parent
  				this.offset.parent.top * mod -											// The offsetParent's offset without borders (offset + border)
  				( ( this.cssPosition === "fixed" ? -this.scrollParent.scrollTop() : ( scrollIsRootNode ? 0 : scroll.scrollTop() ) ) * mod )
  			),
  			left: (
  				pos.left +																// The absolute mouse position
  				this.offset.relative.left * mod +										// Only for relative positioned nodes: Relative offset from element to offset parent
  				this.offset.parent.left * mod	-										// The offsetParent's offset without borders (offset + border)
  				( ( this.cssPosition === "fixed" ? -this.scrollParent.scrollLeft() : scrollIsRootNode ? 0 : scroll.scrollLeft() ) * mod )
  			)
  		};
  
  	},
  
  	_generatePosition: function( event ) {
  
  		var 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: (
  				pageY -																// The absolute mouse position
  				this.offset.click.top -													// Click offset (relative to the element)
  				this.offset.relative.top	-											// Only for relative positioned nodes: Relative offset from element to offset parent
  				this.offset.parent.top +												// The offsetParent's offset without borders (offset + border)
  				( ( this.cssPosition === "fixed" ? -this.scrollParent.scrollTop() : ( scrollIsRootNode ? 0 : scroll.scrollTop() ) ) )
  			),
  			left: (
  				pageX -																// The absolute mouse position
  				this.offset.click.left -												// Click offset (relative to the element)
  				this.offset.relative.left	-											// Only for relative positioned nodes: Relative offset from element to offset parent
  				this.offset.parent.left +												// The offsetParent's offset without borders (offset + border)
  				( ( this.cssPosition === "fixed" ? -this.scrollParent.scrollLeft() : scrollIsRootNode ? 0 : scroll.scrollLeft() ) )
  			)
  		};
  
  	},
  
  	_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 ) {
  				this.refreshPositions( !hardRefresh ); //Precompute after each DOM insertion, NOT on mousemove
  			}
  		} );
  
  	},
  
  	_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 ) {
  			delayedTriggers.push( function( event ) { this._trigger( "update", event, this._uiHash() ); } ); //Trigger update callback if the DOM position has changed
  		}
  
  		// 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++ ) {
  				delayedTriggers[ i ].call( this, event );
  			} //Trigger all delayed events
  			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
  		};
  	}
  
  } );
  
  } ) );
  