/*
 * jQuery UI Draggable
 *
 * Copyright (c) 2008 Paul Bakaus
 * Dual licensed under the MIT (MIT-LICENSE.txt)
 * and GPL (GPL-LICENSE.txt) licenses.
 * 
 * http://docs.jquery.com/UI/Draggables
 *
 * Depends:
 *	ui.core.js
 */
(function($) {

	$.widget("ui.draggable", $.extend({}, $.ui.mouse, {
		init: function() {

			//Initialize needed constants
			var o = this.options;

			//Position the node
			if (o.helper == 'original' && !(/(relative|absolute|fixed)/).test(this.element.css('position')))
				this.element.css('position', 'relative');

			this.element.addClass('ui-draggable');
			(o.disabled && this.element.addClass('ui-draggable-disabled'));

			this.mouseInit();

		},
		mouseStart: function(e) {

			var o = this.options;

			if (this.helper || o.disabled || $(e.target).is('.ui-resizable-handle')) return false;

			var handle = !this.options.handle || !$(this.options.handle, this.element).length ? true : false;


			$(this.options.handle, this.element).find("*").andSelf().each(function() {
				if (this == e.target) handle = true;
				if (this == e.srcElement) handle = true;
			});
			if (!handle) return false;

			if ($.ui.ddmanager) $.ui.ddmanager.current = this;

			//Create and append the visible helper
			this.helper = $.isFunction(o.helper) ? $(o.helper.apply(this.element[0], [e])) : (o.helper == 'clone' ? this.element.clone() : this.element);
			if (!this.helper.parents('body').length) this.helper.appendTo((o.appendTo == 'parent' ? this.element[0].parentNode : o.appendTo));
			if (this.helper[0] != this.element[0] && !(/(fixed|absolute)/).test(this.helper.css("position"))) this.helper.css("position", "absolute");

			/*
			* - Position generation -
			* This block generates everything position related - it's the core of draggables.
			*/

			this.margins = {																				//Cache the margins
				left: (parseInt(this.element.css("marginLeft"), 10) || 0),
				top: (parseInt(this.element.css("marginTop"), 10) || 0)
			};

			this.cssPosition = this.helper.css("position"); 												//Store the helper's css position
			this.offset = this.element.offset(); 														//The element's absolute position on the page
			this.offset = {																					//Substract the margins from the element's absolute offset
				top: this.offset.top - this.margins.top,
				left: this.offset.left - this.margins.left
			};

			this.offset.click = {																			//Where the click happened, relative to the element
				left: e.pageX - this.offset.left,
				top: e.pageY - this.offset.top
			};

			this.offsetParent = this.helper.offsetParent(); var po = this.offsetParent.offset(); 		//Get the offsetParent and cache its position
			if (this.offsetParent[0] == document.body && $.browser.mozilla) po = { top: 0, left: 0 }; 	//Ugly FF3 fix
			this.offset.parent = {																			//Store its position plus border
				top: po.top + (parseInt(this.offsetParent.css("borderTopWidth"), 10) || 0),
				left: po.left + (parseInt(this.offsetParent.css("borderLeftWidth"), 10) || 0)
			};

			var p = this.element.position(); 															//This is a relative to absolute position minus the actual position calculation - only used for relative positioned helpers
			this.offset.relative = this.cssPosition == "relative" ? {
				top: p.top - (parseInt(this.helper.css("top"), 10) || 0) + this.offsetParent[0].scrollTop,
				left: p.left - (parseInt(this.helper.css("left"), 10) || 0) + this.offsetParent[0].scrollLeft
} : { top: 0, left: 0 };

				this.originalPosition = this.generatePosition(e); 											//Generate the original position
				this.helperProportions = { width: this.helper.outerWidth(), height: this.helper.outerHeight() }; //Cache the helper size

				if (o.cursorAt) {
					if (o.cursorAt.left != undefined) this.offset.click.left = o.cursorAt.left + this.margins.left;
					if (o.cursorAt.right != undefined) this.offset.click.left = this.helperProportions.width - o.cursorAt.right + this.margins.left;
					if (o.cursorAt.top != undefined) this.offset.click.top = o.cursorAt.top + this.margins.top;
					if (o.cursorAt.bottom != undefined) this.offset.click.top = this.helperProportions.height - o.cursorAt.bottom + this.margins.top;
				}


				/*
				* - Position constraining -
				* Here we prepare position constraining like grid and containment.
				*/

				if (o.containment) {
					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,
				$(o.containment == 'document' ? document : window).width() - this.offset.relative.left - this.offset.parent.left - this.helperProportions.width - this.margins.left - (parseInt(this.element.css("marginRight"), 10) || 0),
				($(o.containment == 'document' ? document : window).height() || document.body.parentNode.scrollHeight) - this.offset.relative.top - this.offset.parent.top - this.helperProportions.height - this.margins.top - (parseInt(this.element.css("marginBottom"), 10) || 0)
			];

					if (!(/^(document|window|parent)$/).test(o.containment)) {
						var ce = $(o.containment)[0];
						var co = $(o.containment).offset();

						this.containment = [
					co.left + (parseInt($(ce).css("borderLeftWidth"), 10) || 0) - this.offset.relative.left - this.offset.parent.left,
					co.top + (parseInt($(ce).css("borderTopWidth"), 10) || 0) - this.offset.relative.top - this.offset.parent.top,
					co.left + Math.max(ce.scrollWidth, ce.offsetWidth) - (parseInt($(ce).css("borderLeftWidth"), 10) || 0) - this.offset.relative.left - this.offset.parent.left - this.helperProportions.width - this.margins.left - (parseInt(this.element.css("marginRight"), 10) || 0),
					co.top + Math.max(ce.scrollHeight, ce.offsetHeight) - (parseInt($(ce).css("borderTopWidth"), 10) || 0) - this.offset.relative.top - this.offset.parent.top - this.helperProportions.height - this.margins.top - (parseInt(this.element.css("marginBottom"), 10) || 0)
				];
					}
				}

				//Call plugins and callbacks
				this.propagate("start", e);

				this.helperProportions = { width: this.helper.outerWidth(), height: this.helper.outerHeight() }; //Recache the helper size
				if ($.ui.ddmanager && !o.dropBehaviour) $.ui.ddmanager.prepareOffsets(this, e);

				this.helper.addClass("ui-draggable-dragging");
				this.mouseDrag(e); //Execute the drag once - this causes the helper not to be visible before getting its correct position
				return true;
			},
			convertPositionTo: function(d, pos) {
				if (!pos) pos = this.position;
				var mod = d == "absolute" ? 1 : -1;
				return {
					top: (
				pos.top																	// the calculated relative 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.cssPosition == "absolute" && this.offsetParent[0] == document.body) ? 0 : this.offsetParent[0].scrollTop) * mod	// The offsetParent's scroll position, not if the element is fixed
				+ (this.cssPosition == "fixed" ? $(document).scrollTop() : 0) * mod
				+ this.margins.top * mod												//Add the margin (you don't want the margin counting in intersection methods)
			),
					left: (
				pos.left																// the calculated relative 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.cssPosition == "absolute" && this.offsetParent[0] == document.body) ? 0 : this.offsetParent[0].scrollLeft) * mod	// The offsetParent's scroll position, not if the element is fixed
				+ (this.cssPosition == "fixed" ? $(document).scrollLeft() : 0) * mod
				+ this.margins.left * mod												//Add the margin (you don't want the margin counting in intersection methods)
			)
				};
			},
			generatePosition: function(e) {

				var o = this.options;
				var position = {
					top: (
				e.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.cssPosition == "absolute" && this.offsetParent[0] == document.body) ? 0 : this.offsetParent[0].scrollTop)	// The offsetParent's scroll position, not if the element is fixed
				- (this.cssPosition == "fixed" ? $(document).scrollTop() : 0)
			),
					left: (
				e.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.cssPosition == "absolute" && this.offsetParent[0] == document.body) ? 0 : this.offsetParent[0].scrollLeft)	// The offsetParent's scroll position, not if the element is fixed
				- (this.cssPosition == "fixed" ? $(document).scrollLeft() : 0)
			)
				};

				if (!this.originalPosition) return position; 									//If we are not dragging yet, we won't check for options

				/*
				* - Position constraining -
				* Constrain the position to a mix of grid, containment.
				*/
				if (this.containment) {
					if (position.left < this.containment[0]) position.left = this.containment[0];
					if (position.top < this.containment[1]) position.top = this.containment[1];
					if (position.left > this.containment[2]) position.left = this.containment[2];
					if (position.top > this.containment[3]) position.top = this.containment[3];
				}

				if (o.grid) {
					var top = this.originalPosition.top + Math.round((position.top - this.originalPosition.top) / o.grid[1]) * o.grid[1];
					position.top = this.containment ? (!(top < this.containment[1] || top > this.containment[3]) ? top : (!(top < this.containment[1]) ? top - o.grid[1] : top + o.grid[1])) : top;

					var left = this.originalPosition.left + Math.round((position.left - this.originalPosition.left) / o.grid[0]) * o.grid[0];
					position.left = this.containment ? (!(left < this.containment[0] || left > this.containment[2]) ? left : (!(left < this.containment[0]) ? left - o.grid[0] : left + o.grid[0])) : left;
				}

				return position;
			},
			mouseDrag: function(e) {

				//Compute the helpers position
				this.position = this.generatePosition(e);
				this.positionAbs = this.convertPositionTo("absolute");

				//Call plugins and callbacks and use the resulting position if something is returned		
				this.position = this.propagate("drag", e) || this.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';
				if ($.ui.ddmanager) $.ui.ddmanager.drag(this, e);

				return false;
			},
			mouseStop: function(e) {

				//If we are using droppables, inform the manager about the drop
				var dropped = false;
				if ($.ui.ddmanager && !this.options.dropBehaviour)
					var dropped = $.ui.ddmanager.drop(this, e);

				if ((this.options.revert == "invalid" && !dropped) || (this.options.revert == "valid" && dropped) || this.options.revert === true) {
					var self = this;
					$(this.helper).animate(this.originalPosition, parseInt(this.options.revert, 10) || 500, function() {
						self.propagate("stop", e);
						self.clear();
					});
				} else {
					this.propagate("stop", e);
					this.clear();
				}

				return false;
			},
			clear: function() {
				this.helper.removeClass("ui-draggable-dragging");
				if (this.options.helper != 'original' && !this.cancelHelperRemoval) this.helper.remove();
				//if($.ui.ddmanager) $.ui.ddmanager.current = null;
				this.helper = null;
				this.cancelHelperRemoval = false;
			},

			// From now on bulk stuff - mainly helpers
			plugins: {},
			uiHash: function(e) {
				return {
					helper: this.helper,
					position: this.position,
					absolutePosition: this.positionAbs,
					options: this.options
				};
			},
			propagate: function(n, e) {
				$.ui.plugin.call(this, n, [e, this.uiHash()]);
				if (n == "drag") this.positionAbs = this.convertPositionTo("absolute"); //The absolute position has to be recalculated after plugins
				return this.element.triggerHandler(n == "drag" ? n : "drag" + n, [e, this.uiHash()], this.options[n]);
			},
			destroy: function() {
				if (!this.element.data('draggable')) return;
				this.element.removeData("draggable").unbind(".draggable").removeClass('ui-draggable');
				this.mouseDestroy();
			}
		}));

		$.extend($.ui.draggable, {
			defaults: {
				appendTo: "parent",
				axis: false,
				cancel: ":input",
				delay: 0,
				distance: 1,
				helper: "original"
			}
		});

		$.ui.plugin.add("draggable", "cursor", {
			start: function(e, ui) {
				var t = $('body');
				if (t.css("cursor")) ui.options._cursor = t.css("cursor");
				t.css("cursor", ui.options.cursor);
			},
			stop: function(e, ui) {
				if (ui.options._cursor) $('body').css("cursor", ui.options._cursor);
			}
		});

		$.ui.plugin.add("draggable", "zIndex", {
			start: function(e, ui) {
				var t = $(ui.helper);
				if (t.css("zIndex")) ui.options._zIndex = t.css("zIndex");
				t.css('zIndex', ui.options.zIndex);
			},
			stop: function(e, ui) {
				if (ui.options._zIndex) $(ui.helper).css('zIndex', ui.options._zIndex);
			}
		});

		$.ui.plugin.add("draggable", "opacity", {
			start: function(e, ui) {
				var t = $(ui.helper);
				if (t.css("opacity")) ui.options._opacity = t.css("opacity");
				t.css('opacity', ui.options.opacity);
			},
			stop: function(e, ui) {
				if (ui.options._opacity) $(ui.helper).css('opacity', ui.options._opacity);
			}
		});

		$.ui.plugin.add("draggable", "iframeFix", {
			start: function(e, ui) {
				$(ui.options.iframeFix === true ? "iframe" : ui.options.iframeFix).each(function() {
					$('<div class="ui-draggable-iframeFix" style="background: #fff;"></div>')
			.css({
				width: this.offsetWidth + "px", height: this.offsetHeight + "px",
				position: "absolute", opacity: "0.001", zIndex: 1000
			})
			.css($(this).offset())
			.appendTo("body");
				});
			},
			stop: function(e, ui) {
				$("div.DragDropIframeFix").each(function() { this.parentNode.removeChild(this); }); //Remove frame helpers	
			}
		});

		$.ui.plugin.add("draggable", "scroll", {
			start: function(e, ui) {
				var o = ui.options;
				var i = $(this).data("draggable");
				o.scrollSensitivity = o.scrollSensitivity || 20;
				o.scrollSpeed = o.scrollSpeed || 20;

				i.overflowY = function(el) {
					do { if (/auto|scroll/.test(el.css('overflow')) || (/auto|scroll/).test(el.css('overflow-y'))) return el; el = el.parent(); } while (el[0].parentNode);
					return $(document);
				} (this);
				i.overflowX = function(el) {
					do { if (/auto|scroll/.test(el.css('overflow')) || (/auto|scroll/).test(el.css('overflow-x'))) return el; el = el.parent(); } while (el[0].parentNode);
					return $(document);
				} (this);

				if (i.overflowY[0] != document && i.overflowY[0].tagName != 'HTML') i.overflowYOffset = i.overflowY.offset();
				if (i.overflowX[0] != document && i.overflowX[0].tagName != 'HTML') i.overflowXOffset = i.overflowX.offset();

			},
			drag: function(e, ui) {

				var o = ui.options;
				var i = $(this).data("draggable");

				if (i.overflowY[0] != document && i.overflowY[0].tagName != 'HTML') {
					if ((i.overflowYOffset.top + i.overflowY[0].offsetHeight) - e.pageY < o.scrollSensitivity)
						i.overflowY[0].scrollTop = i.overflowY[0].scrollTop + o.scrollSpeed;
					if (e.pageY - i.overflowYOffset.top < o.scrollSensitivity)
						i.overflowY[0].scrollTop = i.overflowY[0].scrollTop - o.scrollSpeed;

				} else {
					if (e.pageY - $(document).scrollTop() < o.scrollSensitivity)
						$(document).scrollTop($(document).scrollTop() - o.scrollSpeed);
					if ($(window).height() - (e.pageY - $(document).scrollTop()) < o.scrollSensitivity)
						$(document).scrollTop($(document).scrollTop() + o.scrollSpeed);
				}

				if (i.overflowX[0] != document && i.overflowX[0].tagName != 'HTML') {
					if ((i.overflowXOffset.left + i.overflowX[0].offsetWidth) - e.pageX < o.scrollSensitivity)
						i.overflowX[0].scrollLeft = i.overflowX[0].scrollLeft + o.scrollSpeed;
					if (e.pageX - i.overflowXOffset.left < o.scrollSensitivity)
						i.overflowX[0].scrollLeft = i.overflowX[0].scrollLeft - o.scrollSpeed;
				} else {
					if (e.pageX - $(document).scrollLeft() < o.scrollSensitivity)
						$(document).scrollLeft($(document).scrollLeft() - o.scrollSpeed);
					if ($(window).width() - (e.pageX - $(document).scrollLeft()) < o.scrollSensitivity)
						$(document).scrollLeft($(document).scrollLeft() + o.scrollSpeed);
				}

			}
		});

		$.ui.plugin.add("draggable", "snap", {
			start: function(e, ui) {

				var inst = $(this).data("draggable");
				inst.snapElements = [];
				$(ui.options.snap === true ? '.ui-draggable' : ui.options.snap).each(function() {
					var $t = $(this); var $o = $t.offset();
					if (this != inst.element[0]) inst.snapElements.push({
						item: this,
						width: $t.outerWidth(), height: $t.outerHeight(),
						top: $o.top, left: $o.left
					});
				});

			},
			drag: function(e, ui) {

				var inst = $(this).data("draggable");
				var d = ui.options.snapTolerance || 20;
				var x1 = ui.absolutePosition.left, x2 = x1 + inst.helperProportions.width,
			y1 = ui.absolutePosition.top, y2 = y1 + inst.helperProportions.height;

				for (var i = inst.snapElements.length - 1; i >= 0; i--) {

					var l = inst.snapElements[i].left, r = l + inst.snapElements[i].width,
				t = inst.snapElements[i].top, b = t + inst.snapElements[i].height;

					//Yes, I know, this is insane ;)
					if (!((l - d < x1 && x1 < r + d && t - d < y1 && y1 < b + d) || (l - d < x1 && x1 < r + d && t - d < y2 && y2 < b + d) || (l - d < x2 && x2 < r + d && t - d < y1 && y1 < b + d) || (l - d < x2 && x2 < r + d && t - d < y2 && y2 < b + d))) continue;

					if (ui.options.snapMode != 'inner') {
						var ts = Math.abs(t - y2) <= 20;
						var bs = Math.abs(b - y1) <= 20;
						var ls = Math.abs(l - x2) <= 20;
						var rs = Math.abs(r - x1) <= 20;
						if (ts) ui.position.top = inst.convertPositionTo("relative", { top: t - inst.helperProportions.height, left: 0 }).top;
						if (bs) ui.position.top = inst.convertPositionTo("relative", { top: b, left: 0 }).top;
						if (ls) ui.position.left = inst.convertPositionTo("relative", { top: 0, left: l - inst.helperProportions.width }).left;
						if (rs) ui.position.left = inst.convertPositionTo("relative", { top: 0, left: r }).left;
					}

					if (ui.options.snapMode != 'outer') {
						var ts = Math.abs(t - y1) <= 20;
						var bs = Math.abs(b - y2) <= 20;
						var ls = Math.abs(l - x1) <= 20;
						var rs = Math.abs(r - x2) <= 20;
						if (ts) ui.position.top = inst.convertPositionTo("relative", { top: t, left: 0 }).top;
						if (bs) ui.position.top = inst.convertPositionTo("relative", { top: b - inst.helperProportions.height, left: 0 }).top;
						if (ls) ui.position.left = inst.convertPositionTo("relative", { top: 0, left: l }).left;
						if (rs) ui.position.left = inst.convertPositionTo("relative", { top: 0, left: r - inst.helperProportions.width }).left;
					}

				};
			}
		});

		$.ui.plugin.add("draggable", "connectToSortable", {
			start: function(e, ui) {

				var inst = $(this).data("draggable");
				inst.sortables = [];
				$(ui.options.connectToSortable).each(function() {
					if ($.data(this, 'sortable')) {
						var sortable = $.data(this, 'sortable');
						inst.sortables.push({
							instance: sortable,
							shouldRevert: sortable.options.revert
						});
						sortable.refreshItems(); //Do a one-time refresh at start to refresh the containerCache	
						sortable.propagate("activate", e, inst);
					}
				});

			},
			stop: function(e, ui) {

				//If we are still over the sortable, we fake the stop event of the sortable, but also remove helper
				var inst = $(this).data("draggable");

				$.each(inst.sortables, function() {
					if (this.instance.isOver) {
						this.instance.isOver = 0;
						inst.cancelHelperRemoval = true; //Don't remove the helper in the draggable instance
						this.instance.cancelHelperRemoval = false; //Remove it in the sortable instance (so sortable plugins like revert still work)
						if (this.shouldRevert) this.instance.options.revert = true; //revert here
						this.instance.mouseStop(e);

						//Also propagate receive event, since the sortable is actually receiving a element
						this.instance.element.triggerHandler("sortreceive", [e, $.extend(this.instance.ui(), { sender: inst.element })], this.instance.options["receive"]);

						this.instance.options.helper = this.instance.options._helper;
					} else {
						this.instance.propagate("deactivate", e, inst);
					}

				});

			},
			drag: function(e, ui) {

				var inst = $(this).data("draggable"), self = this;

				var checkPos = function(o) {

					var l = o.left, r = l + o.width,
				t = o.top, b = t + o.height;

					return (l < (this.positionAbs.left + this.offset.click.left) && (this.positionAbs.left + this.offset.click.left) < r
					&& t < (this.positionAbs.top + this.offset.click.top) && (this.positionAbs.top + this.offset.click.top) < b);
				};

				$.each(inst.sortables, function(i) {

					if (checkPos.call(inst, this.instance.containerCache)) {

						//If it intersects, we use a little isOver variable and set it once, so our move-in stuff gets fired only once
						if (!this.instance.isOver) {
							this.instance.isOver = 1;

							//Now we fake the start of dragging for the sortable instance,
							//by cloning the list group item, appending it to the sortable and using it as inst.currentItem
							//We can then fire the start event of the sortable with our passed browser event, and our own helper (so it doesn't create a new one)
							this.instance.currentItem = $(self).clone().appendTo(this.instance.element).data("sortable-item", true);
							this.instance.options._helper = this.instance.options.helper; //Store helper option to later restore it
							this.instance.options.helper = function() { return ui.helper[0]; };

							e.target = this.instance.currentItem[0];
							this.instance.mouseCapture(e, true);
							this.instance.mouseStart(e, true, true);

							//Because the browser event is way off the new appended portlet, we modify a couple of variables to reflect the changes
							this.instance.offset.click.top = inst.offset.click.top;
							this.instance.offset.click.left = inst.offset.click.left;
							this.instance.offset.parent.left -= inst.offset.parent.left - this.instance.offset.parent.left;
							this.instance.offset.parent.top -= inst.offset.parent.top - this.instance.offset.parent.top;

							inst.propagate("toSortable", e);

						}

						//Provided we did all the previous steps, we can fire the drag event of the sortable on every draggable drag, when it intersects with the sortable
						if (this.instance.currentItem) this.instance.mouseDrag(e);

					} else {

						//If it doesn't intersect with the sortable, and it intersected before,
						//we fake the drag stop of the sortable, but make sure it doesn't remove the helper by using cancelHelperRemoval
						if (this.instance.isOver) {
							this.instance.isOver = 0;
							this.instance.cancelHelperRemoval = true;
							this.instance.options.revert = false; //No revert here
							this.instance.mouseStop(e, true);
							this.instance.options.helper = this.instance.options._helper;

							//Now we remove our currentItem, the list group clone again, and the placeholder, and animate the helper back to it's original size
							this.instance.currentItem.remove();
							if (this.instance.placeholder) this.instance.placeholder.remove();

							inst.propagate("fromSortable", e);
						}

					};

				});

			}
		});

		$.ui.plugin.add("draggable", "stack", {
			start: function(e, ui) {
				var group = $.makeArray($(ui.options.stack.group)).sort(function(a, b) {
					return (parseInt($(a).css("zIndex"), 10) || ui.options.stack.min) - (parseInt($(b).css("zIndex"), 10) || ui.options.stack.min);
				});

				$(group).each(function(i) {
					this.style.zIndex = ui.options.stack.min + i;
				});

				this[0].style.zIndex = ui.options.stack.min + group.length;
			}
		});

	})(jQuery);