diff --git a/ui/jquery.ui.sortable.js b/ui/jquery.ui.sortable.js
index a95c80c68..e7785205f 100644
--- a/ui/jquery.ui.sortable.js
+++ b/ui/jquery.ui.sortable.js
@@ -3,1101 +3,480 @@
  * http://jqueryui.com
  *
  * Copyright 2012 jQuery Foundation and other contributors
- * Released under the MIT license.
+ * Dual licensed under the MIT or GPL Version 2 licenses.
  * http://jquery.org/license
  *
- * http://api.jqueryui.com/sortable/
+ * http://docs.jquery.com/UI/Sortable
  *
  * Depends:
  *	jquery.ui.core.js
- *	jquery.ui.mouse.js
+ *	jquery.ui.interaction.js
  *	jquery.ui.widget.js
  */
 (function( $, undefined ) {
 
-/*jshint onevar: false, curly: false, eqeqeq: false, laxbreak: true, shadow: true, loopfunc: true */
-$.widget("ui.sortable", $.ui.mouse, {
+// create a shallow copy of an object
+function copy( obj ) {
+	var prop,
+		ret = {};
+	for ( prop in obj ) {
+		ret[ prop ] = obj[ prop ];
+	}
+	return ret;
+}
+
+$.widget( "ui.sortable", $.ui.interaction, {
 	version: "@VERSION",
 	widgetEventPrefix: "sort",
-	ready: false,
+	items: 'li', // TODO: move to options when API is ready
+	
+	// dragEl: element being dragged (original or helper)
+	// position: final CSS position of dragEl
+	// offset: offset of dragEl
+	// originalPosition: CSS position before drag start
+	// originalOffset: offset before drag start
+	// originalPointer: pageX/Y at drag start (offset of pointer)
+	// startPosition: CSS position at drag start (after beforeStart)
+	// startOffset: offset at drag start (after beforeStart)
+	// tempPosition: overridable CSS position of dragEl
+	// overflowOffset: offset of scroll parent
+	// overflow: object containing width and height keys of scroll parent
+	// sortablePositions: cache of positions of all sortable items
+	// originalCssPosition: CSS position of element before being made absolute on start
+	// placeholder: reference to jquery object of cloned element that is being dragged
+
 	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
 	},
+
 	_create: function() {
+	
+		this._super();
 
-		var o = this.options;
-		this.containerCache = {};
-		this.element.addClass("ui-sortable");
+		this.element.addClass( "ui-sortable" );
+		
+		this._setSortablePositions();
+		
+	},
+	
+	_setSortablePositions: function() {
+	
+		var sortablePositions = this.sortablePositions = [];
+		
+		this.element.find( this.items ).each( function() {
+		
+			var el = $(this);
+		
+			sortablePositions.push([{
+				el: el,
+				offset: el.offset()
+			}]);
+		});
+	
+	}, 
 
-		//Get the items
-		this.refresh();
+	/** interaction interface **/
+	
+	_isValidTarget: function( element ) {
+	
+		// TODO: options for what is actually valid
+		return element.is( this.items );
+	},
 
-		//Let's determine if the items are being displayed horizontally
-		this.floating = this.items.length ? o.axis === 'x' || (/left|right/).test(this.items[0].item.css('float')) || (/inline|table-cell/).test(this.items[0].item.css('display')) : false;
+	_start: function( event, pointerPosition ) {
+	
+		var offset;
 
-		//Let's determine the parent's offset
-		this.offset = this.element.offset();
+		// The actual dragging element, should always be a jQuery object
+		// this.dragEl = this.options.helper ?
+			// this._createHelper( pointerPosition ) :
+			// this.element;
+			
+		this.dragEl = $(event.target);
+		
+		// Save original css position if there are currently styles
+		// Otherwise the original css will be set back by removing attribute
+		if ( this.dragEl[0].style.position ) {
+			this.originalCssPosition = this.dragEl[0].style.position;
+		}
+		
+		// Create placeholder for while element is dragging
+		// TODO: what do we do about IDs?
+		// TODO: possibly use CSS for visibility portion
+		this.placeholder = this.dragEl.clone().removeAttr('id').css({
+			visibility : 'hidden',
+			position : this.originalCssPosition || ''
+		});
 
-		//Initialize mouse events for interaction
-		this._mouseInit();
+		this.dragEl.after( this.placeholder );
+		
+		this.dragEl.css( 'position', 'absolute' );
 
-		//We're ready to go
-		this.ready = true;
+		// // _createHelper() ensures that helpers are in the correct position
+		// // in the DOM, but we need to handle appendTo when there is no helper
+		// if ( this.options.appendTo && this.dragEl === this.element ) {
+			// this.domPosition = {
+				// parent: this.element.parent(),
+				// index: this.element.index()
+			// };
+			// offset = this.dragEl.offset();
+			// this.dragEl
+				// .appendTo( this.options.appendTo )
+				// .offset( offset );
+		// }
 
+		this.cssPosition = this.dragEl.css( "position" );
+		this.scrollParent = this.element.scrollParent();
+
+		// Cache starting positions
+		this.originalPosition = this.startPosition = this._getPosition();
+		this.originalOffset = this.startOffset = this.dragEl.offset();
+		this.originalPointer = pointerPosition;
+
+		// Cache current position and offset
+		this.position = copy( this.startPosition );
+		this.offset = copy( this.startOffset );
+
+		// Cache the offset of scrollParent, if required for _handleScrolling
+		if ( this.scrollParent[0] !== this.document[0] && this.scrollParent[0].tagName !== "HTML" ) {
+			this.overflowOffset = this.scrollParent.offset();
+		}
+
+		this.overflow = {
+			height: this.scrollParent[0] === this.document[0] ?
+				this.window.height() : this.scrollParent.height(),
+			width: this.scrollParent[0] === this.document[0] ?
+				this.window.width() : this.scrollParent.width()
+		};
+
+		this._preparePosition( pointerPosition );
+
+		// If user cancels beforeStart, don't allow dragging
+		if ( this._trigger( "beforeStart", event,
+				this._originalHash( pointerPosition ) ) === false ) {
+			return false;
+			
+		}
+
+		this._setCss();
+		this.startPosition = this._getPosition();
+		this.startOffset = this.dragEl.offset();
+
+		this._trigger( "start", event, this._fullHash( pointerPosition ) );
+		this._blockFrames();
+	},
+	
+	_move: function( event, pointerPosition ) {
+	
+		var sort, sortItem, top, left, sortIndex, 
+			len = this.sortablePositions.length;
+			
+			
+		this._preparePosition( pointerPosition );
+
+		// // If user cancels drag, don't move the element
+		// if ( this._trigger( "drag", event, this._fullHash( pointerPosition ) ) === false ) {
+			// return;
+		// }
+
+		this._setCss();
+
+		// Scroll the scrollParent, if needed
+		this._handleScrolling( pointerPosition );
+		
+		for ( sortIndex=0; sortIndex<len; ++sortIndex ) {
+		
+			for ( sort in this.sortablePositions[sortIndex] ) {
+			
+				sortItem = this.sortablePositions[sortIndex][sort];
+				
+				// Don't bother checking against self
+				if ( sortItem.el[0] === this.dragEl[0] ) {
+					continue;
+				}
+				
+				if ( this._over( sortItem ) )  {
+				
+					// TODO: cache height of element
+					if ( ( this.offset.top + this.dragEl.height() )	> ( sortItem.offset.top + sortItem.el.height()/2 ) ) {
+					
+						sortItem.el.after( this.dragEl );
+						this.dragEl.after( this.placeholder );
+						this._setSortablePositions();
+					}
+					else if ( this.offset.top	< ( sortItem.offset.top + sortItem.el.height()/2 ) ) {
+						sortItem.el.before( this.dragEl );
+						this.dragEl.before( this.placeholder );
+						this._setSortablePositions();
+					}
+				
+				}
+				
+				
+			}
+		}
+		
+	},
+	
+	// TODO: swap out for real tolerance options
+	_over: function( sortItem ) {
+	
+		// TODO: use same cache from _move for height and width of element
+		var edges = {
+			droppableRight: sortItem.offset.left + sortItem.el.width(),
+			droppableBottom: sortItem.offset.top + sortItem.el.height(),
+			draggableRight: this.offset.left + this.dragEl.width(),
+			draggableBottom: this.offset.top + this.dragEl.height()
+		};
+		
+		return sortItem.offset.left < edges.draggableRight &&
+				edges.droppableRight > this.offset.left &&
+				sortItem.offset.top < edges.draggableBottom &&
+				edges.droppableBottom > sortItem.offset.top;
+	
+	},
+
+	_stop: function( event, pointerPosition ) {
+		
+		var parent, next;
+
+		this._preparePosition( pointerPosition );
+
+		// // If user cancels stop, leave helper there
+		// if ( this._trigger( "stop", event, this._fullHash( pointerPosition ) ) !== false ) {
+			// if ( this.options.helper ) {
+				// this.dragEl.remove();
+			// }
+			// this._resetDomPosition();
+		// }
+
+		// If there were inline styles before drag, set them back
+		if ( this.originalCssPosition ) {
+			this.dragEl.css( 'position', this.originalCssPosition );
+		}
+		// If there were no inline styles, let CSS take over again by removing inline absolute
+		else {
+			this.dragEl.css( 'position', '' );
+		}
+		
+		// TODO: should same thing be done here as is done for position or is there better way altogether
+		this.dragEl.css( 'left', '' );
+		this.dragEl.css( 'top', '' );
+		
+		this.placeholder.remove();
+
+		// Unset properties only needed during draggin/sorting
+		this.dragEl = null;
+		this.originalCssPosition = null;
+		this.placeholder = null;
+
+		this._unblockFrames();
+	},
+
+	// /** internal **/
+
+	// _createHelper: function( pointerPosition ) {
+		// var helper,
+			// offset = this.element.offset(),
+			// xPos = (pointerPosition.x - offset.left) / this.element.outerWidth(),
+			// yPos = (pointerPosition.y - offset.top) / this.element.outerHeight();
+
+		// // clone
+		// if ( this.options.helper === true ) {
+			// helper = this.element.clone()
+				// .removeAttr( "id" )
+				// .find( "[id]" )
+					// .removeAttr( "id" )
+				// .end();
+		// } else {
+			// // TODO: figure out the signature for this; see #4957
+			// helper = $( this.options.helper() );
+		// }
+
+		// // Ensure the helper is in the DOM; obey the appendTo option if it exists
+		// if ( this.options.appendTo || !helper.closest( "body" ).length ) {
+			// helper.appendTo( this.options.appendTo || this.document[0].body );
+		// }
+
+		// return helper
+			// // Helper must be absolute to function properly
+			// .css( "position", "absolute" )
+			// .offset({
+				// left: pointerPosition.x - helper.outerWidth() * xPos,
+				// top: pointerPosition.y - helper.outerHeight() * yPos
+			// });
+	// },
+
+	_getPosition: function() {
+		var left, top, position,
+			scrollTop = this.scrollParent.scrollTop(),
+			scrollLeft = this.scrollParent.scrollLeft();
+
+		// If fixed or absolute
+		if ( this.cssPosition !== "relative" ) {
+			position = this.dragEl.position();
+
+			// Take into account scrollbar
+			position.top -= scrollTop;
+			position.left -= scrollLeft;
+
+			return position;
+		}
+
+		// When using relative, css values are checked
+		// Otherwise the position wouldn't account for padding on ancestors
+		left = this.dragEl.css( "left" );
+		top = this.dragEl.css( "top" );
+
+		// Webkit will give back auto if there is no explicit value
+		left = ( left === "auto" ) ? 0: parseInt( left, 10 );
+		top = ( top === "auto" ) ? 0: parseInt( top, 10 );
+
+		return {
+			left: left - scrollLeft,
+			top: top - scrollTop
+		};
+	},
+
+	_handleScrolling: function( pointerPosition ) {
+		var scrollTop = this.scrollParent.scrollTop(),
+			scrollLeft = this.scrollParent.scrollLeft(),
+			scrollSensitivity = 20,
+			baseSpeed = 5,
+			speed = function( distance ) {
+				return baseSpeed + Math.round( distance / 2 );
+			},
+			// overflowOffset is only set when scrollParent is not doc/html
+			overflowLeft = this.overflowOffset ?
+				this.overflowOffset.left :
+				scrollLeft,
+			overflowTop = this.overflowOffset ?
+				this.overflowOffset.top :
+				scrollTop,
+			xRight = this.overflow.width + overflowLeft - pointerPosition.x,
+			xLeft = pointerPosition.x- overflowLeft,
+			yBottom = this.overflow.height + overflowTop - pointerPosition.y,
+			yTop = pointerPosition.y - overflowTop;
+
+		// Handle vertical scrolling
+		if ( yBottom < scrollSensitivity ) {
+			this.scrollParent.scrollTop( scrollTop +
+				speed( scrollSensitivity - yBottom ) );
+		} else if ( yTop < scrollSensitivity ) {
+			this.scrollParent.scrollTop( scrollTop -
+				speed( scrollSensitivity - yTop ) );
+		}
+
+		// Handle horizontal scrolling
+		if ( xRight < scrollSensitivity ) {
+			this.scrollParent.scrollLeft( scrollLeft +
+				speed( scrollSensitivity - xRight ) );
+		} else if ( xLeft < scrollSensitivity ) {
+			this.scrollParent.scrollLeft( scrollLeft -
+				speed( scrollSensitivity - xLeft ) );
+		}
+	},
+
+	// Uses event to determine new position of draggable, before any override from callbacks
+	// TODO: handle absolute element inside relative parent like a relative element
+	_preparePosition: function( pointerPosition ) {
+		var leftDiff = pointerPosition.x - this.originalPointer.x,
+			topDiff = pointerPosition.y - this.originalPointer.y,
+			newLeft = leftDiff + this.startPosition.left,
+			newTop = topDiff + this.startPosition.top;
+
+		// Save off new values for .css() in various callbacks using this function
+		this.position = {
+			left: newLeft,
+			top: newTop
+		};
+
+		// Save off values to compare user override against automatic coordinates
+		this.tempPosition = {
+			left: newLeft,
+			top: newTop
+		};
+
+		// Refresh offset cache with new positions
+		this.offset.left = this.startOffset.left + leftDiff;
+		this.offset.top = this.startOffset.top + topDiff;
+	},
+
+	// Places draggable where event, or user via event/callback, indicates
+	_setCss: function() {
+		var newLeft = this.position.left,
+			newTop = this.position.top;
+
+		// User overriding left/top so shortcut math is no longer valid
+		if ( this.tempPosition.left !== this.position.left ||
+				this.tempPosition.top !== this.position.top ) {
+			// Reset offset based on difference of expected and overridden values
+			this.offset.left += newLeft - this.tempPosition.left;
+			this.offset.top += newTop - this.tempPosition.top;
+		}
+
+		// TODO: does this work with nested scrollable parents?
+		if ( this.cssPosition !== "fixed" ) {
+			newLeft += this.scrollParent.scrollLeft();
+			newTop += this.scrollParent.scrollTop();
+		}
+
+		this.dragEl.css({
+			left: newLeft,
+			top: newTop
+		});
+	},
+
+	_originalHash: function( pointerPosition ) {
+		var ret = {
+			position: this.position,
+			offset: copy( this.offset ),
+			pointer: copy( pointerPosition )
+		};
+
+		if ( this.options.helper ) {
+			ret.helper = this.dragEl;
+		}
+
+		return ret;
+	},
+
+	_fullHash: function( pointerPosition ) {
+		return $.extend( this._originalHash( pointerPosition ), {
+			originalPosition: copy( this.originalPosition ),
+			originalOffset: copy( this.originalOffset ),
+			originalPointer: copy( this.originalPointer )
+		});
+	},
+
+	_blockFrames: function() {
+		var body = this.document[0].body;
+
+		this.iframeBlocks = this.document.find( "iframe" ).map(function() {
+			var iframe = $( this ),
+				iframeOffset = iframe.offset();
+
+			return $( "<div>" )
+				.css({
+					position: "absolute",
+					width: iframe.outerWidth(),
+					height: iframe.outerHeight(),
+					top: iframeOffset.top,
+					left: iframeOffset.left
+				})
+				.appendTo( body )[0];
+		});
+	},
+
+	_unblockFrames: function() {
+		if ( this.iframeBlocks ) {
+			this.iframeBlocks.remove();
+			delete this.iframeBlocks;
+		}
 	},
 
 	_destroy: function() {
-		this.element
-			.removeClass("ui-sortable ui-sortable-disabled");
-		this._mouseDestroy();
-
-		for ( var i = this.items.length - 1; i >= 0; i-- )
-			this.items[i].item.removeData(this.widgetName + "-item");
-
-		return this;
-	},
-
-	_setOption: function(key, value){
-		if ( key === "disabled" ) {
-			this.options[ key ] = value;
-
-			this.widget().toggleClass( "ui-sortable-disabled", !!value );
-		} else {
-			// Don't call widget base _setOption for disable as it adds ui-state-disabled class
-			$.Widget.prototype._setOption.apply(this, arguments);
-		}
-	},
-
-	_mouseCapture: function(event, overrideHandle) {
-		var 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
-		var currentItem = null;
-
-		$(event.target).parents().each(function() {
-			if($.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) {
-			var validHandle = false;
-
-			$(this.options.handle, currentItem).find("*").andSelf().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 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
-		};
-
-		$.extend(this.offset, {
-			click: { //Where the click happened, relative to the element
-				left: event.pageX - this.offset.left,
-				top: event.pageY - this.offset.top
-			},
-			parent: this._getParentOffset(),
-			relative: this._getRelativeOffset() //This is a relative to absolute position minus the actual position calculation - only used for relative positioned helper
-		});
-
-		// Only after we got the offset, we can change the helper's position to absolute
-		// TODO: Still need to figure out a way to make relative sorting possible
-		this.helper.css("position", "absolute");
-		this.cssPosition = this.helper.css("position");
-
-		//Generate the original position
-		this.originalPosition = this._generatePosition(event);
-		this.originalPageX = event.pageX;
-		this.originalPageY = event.pageY;
-
-		//Adjust the mouse offset relative to the helper if 'cursorAt' is supplied
-		(o.cursorAt && this._adjustOffsetFromHelper(o.cursorAt));
-
-		//Cache the former DOM position
-		this.domPosition = { prev: this.currentItem.prev()[0], parent: this.currentItem.parent()[0] };
-
-		//If the helper is not the original, hide the original so it's not playing any role during the drag, won't cause anything bad this way
-		if(this.helper[0] != this.currentItem[0]) {
-			this.currentItem.hide();
-		}
-
-		//Create the placeholder
-		this._createPlaceholder();
-
-		//Set a containment if given in the options
-		if(o.containment)
-			this._setContainment();
-
-		if(o.cursor) { // cursor option
-			if ($('body').css("cursor")) this._storedCursor = $('body').css("cursor");
-			$('body').css("cursor", o.cursor);
-		}
-
-		if(o.opacity) { // opacity option
-			if (this.helper.css("opacity")) this._storedOpacity = this.helper.css("opacity");
-			this.helper.css("opacity", o.opacity);
-		}
-
-		if(o.zIndex) { // zIndex option
-			if (this.helper.css("zIndex")) this._storedZIndex = this.helper.css("zIndex");
-			this.helper.css("zIndex", o.zIndex);
-		}
-
-		//Prepare scrolling
-		if(this.scrollParent[0] != document && this.scrollParent[0].tagName != 'HTML')
-			this.overflowOffset = this.scrollParent.offset();
-
-		//Call callbacks
-		this._trigger("start", event, this._uiHash());
-
-		//Recache the helper size
-		if(!this._preserveHelperProportions)
-			this._cacheHelperProportions();
-
-
-		//Post 'activate' events to possible containers
-		if(!noActivation) {
-			for (var i = this.containers.length - 1; i >= 0; i--) { this.containers[i]._trigger("activate", event, this._uiHash(this)); }
-		}
-
-		//Prepare possible droppables
-		if($.ui.ddmanager)
-			$.ui.ddmanager.current = this;
-
-		if ($.ui.ddmanager && !o.dropBehaviour)
-			$.ui.ddmanager.prepareOffsets(this, event);
-
-		this.dragging = true;
-
-		this.helper.addClass("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) {
-
-		//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) {
-			var o = this.options, scrolled = false;
-			if(this.scrollParent[0] != document && 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 - $(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(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)
-				$.ui.ddmanager.prepareOffsets(this, event);
-		}
-
-		//Regenerate the absolute position used for position checks
-		this.positionAbs = this._convertPositionTo("absolute");
-
-		//Set the helper position
-		if(!this.options.axis || this.options.axis != "y") this.helper[0].style.left = this.position.left+'px';
-		if(!this.options.axis || this.options.axis != "x") this.helper[0].style.top = this.position.top+'px';
-
-		//Rearrange
-		for (var i = this.items.length - 1; i >= 0; i--) {
-
-			//Cache variables and intersection, continue if no intersection
-			var item = this.items[i], itemElement = item.item[0], intersection = this._intersectsWithPointer(item);
-			if (!intersection) continue;
-
-			// Only put the placeholder inside the current Container, skip all
-			// items form other containers. This works because when moving
-			// an item from one container to another the
-			// currentContainer is switched before the placeholder is moved.
-			//
-			// Without this moving items in "sub-sortables" can cause the placeholder to jitter
-			// beetween the outer and inner container.
-			if (item.instance !== this.currentContainer) continue;
-
-			if (itemElement != this.currentItem[0] //cannot intersect with itself
-				&&	this.placeholder[intersection == 1 ? "next" : "prev"]()[0] != itemElement //no useless actions that have been done before
-				&&	!$.contains(this.placeholder[0], itemElement) //no action if the item moved is the parent of the item checked
-				&& (this.options.type == 'semi-dynamic' ? !$.contains(this.element[0], itemElement) : true)
-				//&& itemElement.parentNode == this.placeholder[0].parentNode // only rearrange items within the same container
-			) {
-
-				this.direction = intersection == 1 ? "down" : "up";
-
-				if (this.options.tolerance == "pointer" || this._intersectsWithSides(item)) {
-					this._rearrange(event, item);
-				} else {
-					break;
-				}
-
-				this._trigger("change", event, this._uiHash());
-				break;
-			}
-		}
-
-		//Post events to containers
-		this._contactContainers(event);
-
-		//Interconnect with droppables
-		if($.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;
-			var cur = this.placeholder.offset();
-
-			this.reverting = true;
-
-			$(this.helper).animate({
-				left: cur.left - this.offset.parent.left - this.margins.left + (this.offsetParent[0] == document.body ? 0 : this.offsetParent[0].scrollLeft),
-				top: cur.top - this.offset.parent.top - this.margins.top + (this.offsetParent[0] == document.body ? 0 : this.offsetParent[0].scrollTop)
-			}, parseInt(this.options.revert, 10) || 500, function() {
-				that._clear(event);
-			});
-		} else {
-			this._clear(event, noPropagation);
-		}
-
-		return false;
-
-	},
-
-	cancel: function() {
-
-		if(this.dragging) {
-
-			this._mouseUp({ target: null });
-
-			if(this.options.helper == "original")
-				this.currentItem.css(this._storedCSS).removeClass("ui-sortable-helper");
-			else
-				this.currentItem.show();
-
-			//Post deactivating events to containers
-			for (var i = this.containers.length - 1; i >= 0; i--){
-				this.containers[i]._trigger("deactivate", null, this._uiHash(this));
-				if(this.containers[i].containerCache.over) {
-					this.containers[i]._trigger("out", null, this._uiHash(this));
-					this.containers[i].containerCache.over = 0;
-				}
-			}
-
-		}
-
-		if (this.placeholder) {
-			//$(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);
-		var 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);
-		var 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;
-
-		var l = item.left,
-			r = l + item.width,
-			t = item.top,
-			b = t + item.height;
-
-		var dyClick = this.offset.click.top,
-			dxClick = this.offset.click.left;
-
-		var isOverElement = (y1 + dyClick) > t && (y1 + dyClick) < b && (x1 + dxClick) > l && (x1 + dxClick) < r;
-
-		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 isOverElementHeight = (this.options.axis === 'x') || $.ui.isOverAxis(this.positionAbs.top + this.offset.click.top, item.top, item.height),
-			isOverElementWidth = (this.options.axis === 'y') || $.ui.isOverAxis(this.positionAbs.left + this.offset.click.left, item.left, item.width),
-			isOverElement = isOverElementHeight && isOverElementWidth,
-			verticalDirection = this._getDragVerticalDirection(),
-			horizontalDirection = this._getDragHorizontalDirection();
-
-		if (!isOverElement)
-			return false;
-
-		return this.floating ?
-			( ((horizontalDirection && horizontalDirection == "right") || verticalDirection == "down") ? 2 : 1 )
-			: ( verticalDirection && (verticalDirection == "down" ? 2 : 1) );
-
-	},
-
-	_intersectsWithSides: function(item) {
-
-		var isOverBottomHalf = $.ui.isOverAxis(this.positionAbs.top + this.offset.click.top, item.top + (item.height/2), item.height),
-			isOverRightHalf = $.ui.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.refreshPositions();
-		return this;
-	},
-
-	_connectWith: function() {
-		var options = this.options;
-		return options.connectWith.constructor == String
-			? [options.connectWith]
-			: options.connectWith;
-	},
-
-	_getItemsAsjQuery: function(connected) {
-
-		var items = [];
-		var queries = [];
-		var connectWith = this._connectWith();
-
-		if(connectWith && connected) {
-			for (var i = connectWith.length - 1; i >= 0; i--){
-				var cur = $(connectWith[i]);
-				for (var j = cur.length - 1; j >= 0; j--){
-					var inst = $.data(cur[j], this.widgetName);
-					if(inst && inst != this && !inst.options.disabled) {
-						queries.push([$.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]);
-
-		for (var i = queries.length - 1; i >= 0; i--){
-			queries[i][0].each(function() {
-				items.push(this);
-			});
-		}
-
-		return $(items);
-
-	},
-
-	_removeCurrentsFromItems: function() {
-
-		var list = this.currentItem.find(":data(" + this.widgetName + "-item)");
-
-		this.items = $.grep(this.items, function (item) {
-			for (var j=0; j < list.length; j++) {
-				if(list[j] == item.item[0])
-					return false;
-			}
-			return true;
-		});
-
-	},
-
-	_refreshItems: function(event) {
-
-		this.items = [];
-		this.containers = [this];
-		var items = this.items;
-		var queries = [[$.isFunction(this.options.items) ? this.options.items.call(this.element[0], event, { item: this.currentItem }) : $(this.options.items, this.element), this]];
-		var connectWith = this._connectWith();
-
-		if(connectWith && this.ready) { //Shouldn't be run the first time through due to massive slow-down
-			for (var i = connectWith.length - 1; i >= 0; i--){
-				var cur = $(connectWith[i]);
-				for (var j = cur.length - 1; j >= 0; j--){
-					var inst = $.data(cur[j], this.widgetName);
-					if(inst && inst != this && !inst.options.disabled) {
-						queries.push([$.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 (var i = queries.length - 1; i >= 0; i--) {
-			var targetData = queries[i][1];
-			var _queries = queries[i][0];
-
-			for (var j=0, queriesLength = _queries.length; j < queriesLength; j++) {
-				var 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) {
-
-		//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();
-		}
-
-		for (var i = this.items.length - 1; i >= 0; i--){
-			var 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;
-
-			var t = this.options.toleranceElement ? $(this.options.toleranceElement, item.item) : item.item;
-
-			if (!fast) {
-				item.width = t.outerWidth();
-				item.height = t.outerHeight();
-			}
-
-			var 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 (var i = this.containers.length - 1; i >= 0; i--){
-				var 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 o = that.options;
-
-		if(!o.placeholder || o.placeholder.constructor == String) {
-			var className = o.placeholder;
-			o.placeholder = {
-				element: function() {
-
-					var el = $(document.createElement(that.currentItem[0].nodeName))
-						.addClass(className || that.currentItem[0].className+" ui-sortable-placeholder")
-						.removeClass("ui-sortable-helper")[0];
-
-					if(!className)
-						el.style.visibility = "hidden";
-
-					return el;
-				},
-				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 = $(o.placeholder.element.call(that.element, that.currentItem));
-
-		//Append it after the actual current item
-		that.currentItem.after(that.placeholder);
-
-		//Update the size of the placeholder (TODO: Logic to fuzzy, see line 316/317)
-		o.placeholder.update(that, that.placeholder);
-
-	},
-
-	_contactContainers: function(event) {
-
-		// get innermost container that intersects with item
-		var innermostContainer = null, innermostIndex = null;
-
-
-		for (var i = this.containers.length - 1; i >= 0; i--){
-
-			// never consider a container that's located within the item itself
-			if($.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 && $.contains(this.containers[i].element[0], innermostContainer.element[0]))
-					continue;
-
-				innermostContainer = this.containers[i];
-				innermostIndex = i;
-
-			} else {
-				// container doesn't intersect. trigger "out" event if necessary
-				if(this.containers[i].containerCache.over) {
-					this.containers[i]._trigger("out", event, this._uiHash(this));
-					this.containers[i].containerCache.over = 0;
-				}
-			}
-
-		}
-
-		// if no intersecting containers found, return
-		if(!innermostContainer) return;
-
-		// move the item into the container if it's not there already
-		if(this.containers.length === 1) {
-			this.containers[innermostIndex]._trigger("over", event, this._uiHash(this));
-			this.containers[innermostIndex].containerCache.over = 1;
-		} else {
-
-			//When entering a new container, we will find the item with the least distance and append our item near it
-			var dist = 10000; var itemWithLeastDistance = null;
-			var posProperty = this.containers[innermostIndex].floating ? 'left' : 'top';
-			var sizeProperty = this.containers[innermostIndex].floating ? 'width' : 'height';
-			var base = this.positionAbs[posProperty] + this.offset.click[posProperty];
-			for (var j = this.items.length - 1; j >= 0; j--) {
-				if(!$.contains(this.containers[innermostIndex].element[0], this.items[j].item[0])) continue;
-				if(this.items[j].item[0] == this.currentItem[0]) continue;
-				var cur = this.items[j].item.offset()[posProperty];
-				var nearBottom = false;
-				if(Math.abs(cur - base) > Math.abs(cur + this.items[j][sizeProperty] - base)){
-					nearBottom = true;
-					cur += this.items[j][sizeProperty];
-				}
-
-				if(Math.abs(cur - base) < dist) {
-					dist = Math.abs(cur - base); itemWithLeastDistance = this.items[j];
-					this.direction = nearBottom ? "up": "down";
-				}
-			}
-
-			if(!itemWithLeastDistance && !this.options.dropOnEmpty) //Check if dropOnEmpty is enabled
-				return;
-
-			this.currentContainer = this.containers[innermostIndex];
-			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));
-
-			//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;
-		var helper = $.isFunction(o.helper) ? $(o.helper.apply(this.element[0], [event, this.currentItem])) : (o.helper == 'clone' ? this.currentItem.clone() : this.currentItem);
-
-		if(!helper.parents('body').length) //Add the helper to the DOM if that didn't happen already
-			$(o.appendTo != 'parent' ? o.appendTo : this.currentItem[0].parentNode)[0].appendChild(helper[0]);
-
-		if(helper[0] == this.currentItem[0])
-			this._storedCSS = { width: this.currentItem[0].style.width, height: this.currentItem[0].style.height, position: this.currentItem.css("position"), top: this.currentItem.css("top"), left: this.currentItem.css("left") };
-
-		if(!helper[0].style.width || o.forceHelperSize) helper.width(this.currentItem.width());
-		if(!helper[0].style.height || o.forceHelperSize) helper.height(this.currentItem.height());
-
-		return helper;
-
-	},
-
-	_adjustOffsetFromHelper: function(obj) {
-		if (typeof obj == 'string') {
-			obj = obj.split(' ');
-		}
-		if ($.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] != document && $.contains(this.scrollParent[0], this.offsetParent[0])) {
-			po.left += this.scrollParent.scrollLeft();
-			po.top += this.scrollParent.scrollTop();
-		}
-
-		if((this.offsetParent[0] == document.body) //This needs to be actually done for all browsers, since pageX/pageY includes this information
-		|| (this.offsetParent[0].tagName && this.offsetParent[0].tagName.toLowerCase() == 'html' && $.ui.ie)) //Ugly IE fix
-			po = { top: 0, left: 0 };
-
-		return {
-			top: po.top + (parseInt(this.offsetParent.css("borderTopWidth"),10) || 0),
-			left: po.left + (parseInt(this.offsetParent.css("borderLeftWidth"),10) || 0)
-		};
-
-	},
-
-	_getRelativeOffset: function() {
-
-		if(this.cssPosition == "relative") {
-			var p = this.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 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,
-			$(o.containment == 'document' ? document : window).width() - this.helperProportions.width - this.margins.left,
-			($(o.containment == 'document' ? document : window).height() || document.body.parentNode.scrollHeight) - this.helperProportions.height - this.margins.top
-		];
-
-		if(!(/^(document|window|parent)$/).test(o.containment)) {
-			var ce = $(o.containment)[0];
-			var co = $(o.containment).offset();
-			var over = ($(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;
-		var scroll = this.cssPosition == 'absolute' && !(this.scrollParent[0] != document && $.contains(this.scrollParent[0], this.offsetParent[0])) ? this.offsetParent : this.scrollParent, scrollIsRootNode = (/(html|body)/i).test(scroll[0].tagName);
-
-		return {
-			top: (
-				pos.top																	// The absolute mouse position
-				+ this.offset.relative.top * mod										// Only for relative positioned nodes: Relative offset from element to offset parent
-				+ this.offset.parent.top * mod											// The offsetParent's offset without borders (offset + border)
-				- ( ( this.cssPosition == 'fixed' ? -this.scrollParent.scrollTop() : ( scrollIsRootNode ? 0 : scroll.scrollTop() ) ) * mod)
-			),
-			left: (
-				pos.left																// The absolute mouse position
-				+ this.offset.relative.left * mod										// Only for relative positioned nodes: Relative offset from element to offset parent
-				+ this.offset.parent.left * mod											// The offsetParent's offset without borders (offset + border)
-				- ( ( this.cssPosition == 'fixed' ? -this.scrollParent.scrollLeft() : scrollIsRootNode ? 0 : scroll.scrollLeft() ) * mod)
-			)
-		};
-
-	},
-
-	_generatePosition: function(event) {
-
-		var o = this.options, scroll = this.cssPosition == 'absolute' && !(this.scrollParent[0] != document && $.contains(this.scrollParent[0], this.offsetParent[0])) ? this.offsetParent : this.scrollParent, scrollIsRootNode = (/(html|body)/i).test(scroll[0].tagName);
-
-		// 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] != document && this.scrollParent[0] != this.offsetParent[0])) {
-			this.offset.relative = this._getRelativeOffset();
-		}
-
-		var pageX = event.pageX;
-		var pageY = event.pageY;
-
-		/*
-		 * - Position constraining -
-		 * Constrain the position to a mix of grid, containment.
-		 */
-
-		if(this.originalPosition) { //If we are not dragging yet, we won't check for options
-
-			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) {
-				var 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;
-
-				var 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 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(var i in this._storedCSS) {
-				if(this._storedCSS[i] == 'auto' || this._storedCSS[i] == 'static') this._storedCSS[i] = '';
-			}
-			this.currentItem.css(this._storedCSS).removeClass("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
-		for (var i = this.containers.length - 1; i >= 0; i--){
-			if(!noPropagation) delayedTriggers.push((function(c) { return function(event) { c._trigger("deactivate", event, this._uiHash(this)); };  }).call(this, this.containers[i]));
-			if(this.containers[i].containerCache.over) {
-				delayedTriggers.push((function(c) { return function(event) { c._trigger("out", event, this._uiHash(this)); };  }).call(this, this.containers[i]));
-				this.containers[i].containerCache.over = 0;
-			}
-		}
-
-		//Do what was originally in plugins
-		if(this._storedCursor) $('body').css("cursor", this._storedCursor); //Reset cursor
-		if(this._storedOpacity) this.helper.css("opacity", this._storedOpacity); //Reset opacity
-		if(this._storedZIndex) this.helper.css("zIndex", this._storedZIndex == 'auto' ? '' : this._storedZIndex); //Reset z-index
-
-		this.dragging = false;
-		if(this.cancelHelperRemoval) {
-			if(!noPropagation) {
-				this._trigger("beforeStop", event, this._uiHash());
-				for (var i=0; i < delayedTriggers.length; i++) {
-					delayedTriggers[i].call(this, event);
-				} //Trigger all delayed events
-				this._trigger("stop", event, this._uiHash());
-			}
-
-			this.fromOutside = false;
-			return false;
-		}
-
-		if(!noPropagation) this._trigger("beforeStop", event, this._uiHash());
-
-		//$(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.helper[0] != this.currentItem[0]) this.helper.remove(); this.helper = null;
-
-		if(!noPropagation) {
-			for (var 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 true;
-
-	},
-
-	_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
-		};
+		this.element.removeClass( "ui-sortable" );
+		this._super();
 	}
-
 });
-
-})(jQuery);
+})( jQuery );
\ No newline at end of file