/*
   * jQuery UI Sortable 1.7.1
   *
   * Copyright (c) 2009 AUTHORS.txt (http://jqueryui.com/about)
   * Dual licensed under the MIT (MIT-LICENSE.txt)
   * and GPL (GPL-LICENSE.txt) licenses.
   *
   * http://docs.jquery.com/UI/Sortables
   *
   * Depends:
   *        ui.core.js
   */
  (function($)\; \{$.widget("ui.sortable", $.extend(\{\},$.ui.mouse, {
          _init: function() {
  
                  var o = this.options;
                  this.containerCache = {};
                  this.element.addClass("ui-sortable");
  
                  //Get the items
                  this.refresh();
  
                  //Let's determine if the items are floating
                  this.floating = this.items.length ? (/left|right/).test(this.items[0].item.css('float')) : false;
  
                  //Let's determine the parent's offset
                  this.offset = this.element.offset();
  
                  //Initialize mouse events for interaction
                  this._mouseInit();
  
          },
  
          destroy: function() {
                  this.element
                          .removeClass("ui-sortable ui-sortable-disabled")
                          .removeData("sortable")
                          .unbind(".sortable");
                  this._mouseDestroy();
  
                  for ( var i = this.items.length - 1; i >= 0; i-- )
                          this.items[i].item.removeData("sortable-item");
          },
  
          _mouseCapture: function(event, overrideHandle) {
  
                  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, self = this, nodes = $(event.target).parents().each(function() {
                          if($.data(this,\; \text{'}sortable-item\text{'})\; ==\; self)\; \{\; currentItem\; =\; this;\; return\; false;\; \}\; \});\; if($.data(event.target, 'sortable-item') == self) 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, self = this;
                  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
                  };
  
                  // 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");
  
                  $.extend(this.offset,\; \{\; click:\; \{\; //Where\; the\; click\; happened,\; relative\; to\; the\; element\; left:\; event.pageX\; -\; this.offset.left,\; top:\; event.pageY\; -\; this.offset.top\; \},\; parent:\; this.\_getParentOffset(),\; relative:\; this.\_getRelativeOffset()\; //This\; is\; a\; relative\; to\; absolute\; position\; minus\; the\; actual\; position\; calculation\; -\; only\; used\; for\; relative\; positioned\; helper\; \});\; //Generate\; the\; original\; position\; this.originalPosition\; =\; this.\_generatePosition(event);\; this.originalPageX\; =\; event.pageX;\; this.originalPageY\; =\; event.pageY;\; //Adjust\; the\; mouse\; offset\; relative\; to\; the\; helper\; if\; \text{'}cursorAt\text{'}\; is\; supplied\; if(o.cursorAt)\; this.\_adjustOffsetFromHelper(o.cursorAt);\; //Cache\; the\; former\; DOM\; position\; this.domPosition\; =\; \{\; prev:\; this.currentItem.prev()[0],\; parent:\; this.currentItem.parent()[0]$};
  
                  //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, self._uiHash(this)); }
                  }
  
                  //Prepare possible droppables
                  if(.ui.ddmanager)
                          $.ui.ddmanager.current\; =\; this;\; if\; ($.ui.ddmanager && !o.dropBehaviour)
                          .ui.ddmanager && !o.dropBehaviour)
                                  .ui.contains(this.placeholder[0], itemElement) //no action if the item moved is the parent of the item checked
                                  && (this.options.type == 'semi-dynamic' ? !$.ui.contains(this.element[0],\; itemElement)\; :\; true)\; )\; \{\; this.direction\; =\; intersection\; ==\; 1\; ?\; "down"\; :\; "up";\; if\; (this.options.tolerance\; ==\; "pointer"\; ||\; this.\_intersectsWithSides(item))\; \{\; this.\_rearrange(event,\; item);\; \}\; else\; \{\; break;\; \}\; this.\_trigger("change",\; event,\; this.\_uiHash());\; break;\; \}\; \}\; //Post\; events\; to\; containers\; this.\_contactContainers(event);\; //Interconnect\; with\; droppables\; if($.ui.ddmanager) $.ui.ddmanager.drag(this,\; event);\; //Call\; callbacks\; this.\_trigger(\text{'}sort\text{'},\; event,\; this.\_uiHash());\; this.lastPositionAbs\; =\; this.positionAbs;\; return\; false;\; \},\; \_mouseStop:\; function(event,\; noPropagation)\; \{\; if(!event)\; return;\; //If\; we\; are\; using\; droppables,\; inform\; the\; manager\; about\; the\; drop\; if\; ($.ui.ddmanager && !this.options.dropBehaviour)
                          .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 true;
  
          },
  
          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]));
                  });
  
                  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 = $.ui.isOverAxis(this.positionAbs.top\; +\; this.offset.click.top,\; item.top,\; item.height),\; isOverElementWidth\; =$.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();
          },
  
          _connectWith: function() {
                  var options = this.options;
                  return options.connectWith.constructor == String
                          ? [options.connectWith]
                          : options.connectWith;
          },
          
          _getItemsAsjQuery: function(connected) {
  
                  var self = this;
                  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 = .isFunction(inst.options.items) ? inst.options.items.call(inst.element) : $(inst.options.items, inst.element).not(".ui-sortable-helper"), inst]);
                                          }
                                  };
                          };
                  }
  
                  queries.push([$.isFunction(this.options.items)\; ?\; this.options.items.call(this.element,\; null,\; \{\; options:\; this.options,\; item:\; this.currentItem\; \})\; :\; \$(this.options.items,\; this.element).not(".ui-sortable-helper"),\; this]);\; for\; (var\; i\; =\; queries.length\; -\; 1;\; i\; >=\; 0;\; i--)\{\; queries[i][0].each(function()\; \{\; items.push(this);\; \});$};
  
                  return items;
  
          },
  
          _removeCurrentsFromItems: function() {
  
                  var list = this.currentItem.find(":data(sortable-item)");
  
                  for (var i=0; i < this.items.length; i++) {
  
                          for (var j=0; j < list.length; j++) {
                                  if(list[j] == this.items[i].item[0])
                                          this.items.splice(i,1);
                          };
  
                  };
  
          },
  
          _refreshItems: function(event) {
  
                  this.items = [];
                  this.containers = [this];
                  var items = this.items;
                  var self = this;
                  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) {
                          for (var i = connectWith.length - 1; i >= 0; i--){
                                  var cur = $(connectWith[i]);
                                  for (var j = cur.length - 1; j >= 0; j--){
                                          var inst = .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('sortable-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();
                          };
                  }
  
          },
  
          _createPlaceholder: function(that) {
  
                  var self = that || this, o = self.options;
  
                  if(!o.placeholder || o.placeholder.constructor == String) {
                          var className = o.placeholder;
                          o.placeholder = {
                                  element: function() {
  
                                          var el = $(document.createElement(self.currentItem[0].nodeName))
                                                  .addClass(className || self.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(self.currentItem.innerHeight() - parseInt(self.currentItem.css('paddingTop')||0, 10) - parseInt(self.currentItem.css('paddingBottom')||0, 10)); };
                                          if(!p.width()) { p.width(self.currentItem.innerWidth() - parseInt(self.currentItem.css('paddingLeft')||0, 10) - parseInt(self.currentItem.css('paddingRight')||0, 10)); };
                                  }
                          };
                  }
  
                  //Create the placeholder
                  self.placeholder = $(o.placeholder.element.call(self.element, self.currentItem));
  
                  //Append it after the actual current item
                  self.currentItem.after(self.placeholder);
  
                  //Update the size of the placeholder (TODO: Logic to fuzzy, see line 316/317)
                  o.placeholder.update(self, self.placeholder);
  
          },
  
          _contactContainers: function(event) {
                  for (var i = this.containers.length - 1; i >= 0; i--){
  
                          if(this._intersectsWith(this.containers[i].containerCache)) {
                                  if(!this.containers[i].containerCache.over) {
  
                                          if(this.currentContainer != this.containers[i]) {
  
                                                  //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 base = this.positionAbs[this.containers[i].floating ? 'left' : 'top'];
                                                  for (var j = this.items.length - 1; j >= 0; j--) {
                                                          if(!};
          },
  
          _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(obj.left != undefined) this.offset.click.left = obj.left + this.margins.left;
                  if(obj.right != undefined) this.offset.click.left = this.helperProportions.width - obj.right + this.margins.left;
                  if(obj.top != undefined) this.offset.click.top = obj.top + this.margins.top;
                  if(obj.bottom != undefined) 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 && .browser.msie)) //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).ui.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)
                                  - (.browser.safari && this.cssPosition == 'fixed' ? 0 : ( 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 && /*
  		 * - 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)
                                  + (.browser.safari && this.cssPosition == 'fixed' ? 0 : ( 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)
                                  + (};
  
          },
  
          _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 self = this, counter = this.counter;
  
                  window.setTimeout(function() {
                          if(counter == self.counter) self.refreshPositions(!hardRefresh); //Precompute after each DOM insertion, NOT on mousemove
                  },0);
  
          },
  
          _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 = [], self = this;
  
                  // 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[0].parentNode) 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
                  if(!.ui.contains(this.element[0], this.currentItem[0])) { //Node was moved out of the current element
                          if(!noPropagation) delayedTriggers.push(function(event) { this._trigger("remove", event, this._uiHash()); });
                          for (var i = this.containers.length - 1; i >= 0; i--){
                                  if(};  }).call(this, this.containers[i]));
                                          delayedTriggers.push((function(c) { return function(event) { c._trigger("update", event, this._uiHash(this));  }; }).call(this, this.containers[i]));
                                  }
                          };
                  };
  
                  //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 cursor
                  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());
                          }
                          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 self = inst || this;
                  return {
                          helper: self.helper,
                          placeholder: self.placeholder || $([]),
                          position: self.position,
                          absolutePosition: self.positionAbs, //deprecated
                          offset: self.positionAbs,
                          item: self.currentItem,
                          sender: inst ? inst.element : null
                  };
          }
  
  }));
  
  $.extend($.ui.sortable, {
          getter: "serialize toArray",
          version: "1.7.1",
          eventPrefix: "sort",
          defaults: {
                  appendTo: "parent",
                  axis: false,
                  cancel: ":input,option",
                  connectWith: false,
                  containment: false,
                  cursor: 'auto',
                  cursorAt: false,
                  delay: 0,
                  distance: 1,
                  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
          }
  });
  
  })(jQuery);