/*
 * jQuery UI @VERSION
 *
 * Copyright (c) 2008 Paul Bakaus (ui.jquery.com)
 * Dual licensed under the MIT (MIT-LICENSE.txt)
 * and GPL (GPL-LICENSE.txt) licenses.
 *
 * http://docs.jquery.com/UI
 *
 * $Date: 2008-05-04 16:52:15 +0200 (So, 04 Mai 2008) $
 * $Rev: 5419 $
 */
;(function($) {
	
	$.ui = $.ui || {};
	
	// Add methods that are vital for all mouse interaction stuff
	// (plugin registering)
	$.extend($.ui, {
		plugin: {
			add: function(module, option, set) {
				var proto = $.ui[module].prototype;
				for(var i in set) {
					proto.plugins[i] = proto.plugins[i] || [];
					proto.plugins[i].push([option, set[i]]);
				}
			},
			call: function(instance, name, args) {
				var set = instance.plugins[name];
				if(!set) { return; }
				
				for (var i = 0; i < set.length; i++) {
					if (instance.options[set[i][0]]) {
						set[i][1].apply(instance.element, args);
					}
				}
			}	
		},
		cssCache: {},
		css: function(name) {
			if ($.ui.cssCache[name]) { return $.ui.cssCache[name]; }
			var tmp = $('<div class="ui-resizable-gen">').addClass(name).css({position:'absolute', top:'-5000px', left:'-5000px', display:'block'}).appendTo('body');
			
			//if (!$.browser.safari)
				//tmp.appendTo('body'); 
			
			//Opera and Safari set width and height to 0px instead of auto
			//Safari returns rgba(0,0,0,0) when bgcolor is not set
			$.ui.cssCache[name] = !!(
				(!(/auto|default/).test(tmp.css('cursor')) || (/^[1-9]/).test(tmp.css('height')) || (/^[1-9]/).test(tmp.css('width')) || 
				!(/none/).test(tmp.css('backgroundImage')) || !(/transparent|rgba\(0, 0, 0, 0\)/).test(tmp.css('backgroundColor')))
			);
			try { $('body').get(0).removeChild(tmp.get(0));	} catch(e){}
			return $.ui.cssCache[name];
		},
		disableSelection: function(e) {
			e.unselectable = "on";
			e.onselectstart = function() { return false; };
			if (e.style) { e.style.MozUserSelect = "none"; }
		},
		enableSelection: function(e) {
			e.unselectable = "off";
			e.onselectstart = function() { return true; };
			if (e.style) { e.style.MozUserSelect = ""; }
		},
		hasScroll: function(e, a) {
			var scroll = /top/.test(a||"top") ? 'scrollTop' : 'scrollLeft', has = false;
			if (e[scroll] > 0) return true; e[scroll] = 1;
			has = e[scroll] > 0 ? true : false; e[scroll] = 0;
			return has;
		}
	});
	
	
	/** jQuery core modifications and additions **/
	
	var _remove = $.fn.remove;
	$.fn.remove = function() {
		$("*", this).add(this).trigger("remove");
		return _remove.apply(this, arguments );
	};
	
	// $.widget is a factory to create jQuery plugins
	// taking some boilerplate code out of the plugin code
	// created by Scott González and Jörn Zaefferer
	function getter(namespace, plugin, method) {
		var methods = $[namespace][plugin].getter || [];
		methods = (typeof methods == "string" ? methods.split(/,?\s+/) : methods);
		return ($.inArray(method, methods) != -1);
	};
	
	var widgetPrototype = {
		init: function() {},
		destroy: function() {},
		
		getData: function(e, key) {
			return this.options[key];
		},
		setData: function(e, key, value) {
			this.options[key] = value;
		},
		
		enable: function() {
			this.setData(null, 'disabled', false);
		},
		disable: function() {
			this.setData(null, 'disabled', true);
		}
	};
	
	$.widget = function(name, prototype) {
		var namespace = name.split(".")[0];
		name = name.split(".")[1];
		// create plugin method
		$.fn[name] = function(options, data) {
			var isMethodCall = (typeof options == 'string'),
				args = arguments;
			
			if (isMethodCall && getter(namespace, name, options)) {
				var instance = $.data(this[0], name);
				return (instance ? instance[options](data) : undefined); 
			}
			
			return this.each(function() {
				var instance = $.data(this, name);
				if (!instance) {
					$.data(this, name, new $[namespace][name](this, options));
				} else if (isMethodCall) {
					instance[options].apply(instance, $.makeArray(args).slice(1));
				}
			});
		};
		
		// create widget constructor
		$[namespace][name] = function(element, options) {
			var self = this;
			
			this.options = $.extend({}, $[namespace][name].defaults, options);
			this.element = $(element)
				.bind('setData.' + name, function(e, key, value) {
					return self.setData(e, key, value);
				})
				.bind('getData.' + name, function(e, key) {
					return self.getData(e, key);
				})
				.bind('remove', function() {
					return self.destroy();
				});
			this.init();
		};
		
		// add widget prototype
		$[namespace][name].prototype = $.extend({}, widgetPrototype, prototype);
	};
	
	
	/** Mouse Interaction Plugin **/
	
	$.widget("ui.mouse", {
		init: function() {
			var self = this;
			
			this.element
				.bind('mousedown.mouse', function() { return self.click.apply(self, arguments); })
				.bind('mouseup.mouse', function() { (self.timer && clearInterval(self.timer)); })
				.bind('click.mouse', function() { if(self.initialized) { self.initialized = false; return false; } });
			//Prevent text selection in IE
			if ($.browser.msie) {
				this.unselectable = this.element.attr('unselectable');
				this.element.attr('unselectable', 'on');
			}
		},
		destroy: function() {
			this.element.unbind('.mouse').removeData("mouse");
			($.browser.msie && this.element.attr('unselectable', this.unselectable));
		},
		trigger: function() { return this.click.apply(this, arguments); },
		click: function(e) {
		
			if(    e.which != 1 //only left click starts dragging
				|| $.inArray(e.target.nodeName.toLowerCase(), this.options.dragPrevention || []) != -1 // Prevent execution on defined elements
				|| (this.options.condition && !this.options.condition.apply(this.options.executor || this, [e, this.element])) //Prevent execution on condition
			) { return true; }
		
			var self = this;
			this.initialized = false;
			var initialize = function() {
				self._MP = { left: e.pageX, top: e.pageY }; // Store the click mouse position
				$(document).bind('mouseup.mouse', function() { return self.stop.apply(self, arguments); });
				$(document).bind('mousemove.mouse', function() { return self.drag.apply(self, arguments); });
		
				if(!self.initalized && Math.abs(self._MP.left-e.pageX) >= self.options.distance || Math.abs(self._MP.top-e.pageY) >= self.options.distance) {
					(self.options.start && self.options.start.call(self.options.executor || self, e, self.element));
					(self.options.drag && self.options.drag.call(self.options.executor || self, e, this.element)); //This is actually not correct, but expected
					self.initialized = true;
				}
			};

			if(this.options.delay) {
				if(this.timer) { clearInterval(this.timer); }
				this.timer = setTimeout(initialize, this.options.delay);
			} else {
				initialize();
			}
				
			return false;
			
		},
		stop: function(e) {
			
			if(!this.initialized) {
				return $(document).unbind('mouseup.mouse').unbind('mousemove.mouse');
			}

			(this.options.stop && this.options.stop.call(this.options.executor || this, e, this.element));
			
			$(document).unbind('mouseup.mouse').unbind('mousemove.mouse');
			return false;
			
		},
		drag: function(e) {

			var o = this.options;
			if ($.browser.msie && !e.button) {
				return this.stop.call(this, e); // IE mouseup check
			}
			
			if(!this.initialized && (Math.abs(this._MP.left-e.pageX) >= o.distance || Math.abs(this._MP.top-e.pageY) >= o.distance)) {
				(o.start && o.start.call(o.executor || this, e, this.element));
				this.initialized = true;
			} else {
				if(!this.initialized) { return false; }
			}

			(o.drag && o.drag.call(this.options.executor || this, e, this.element));
			return false;
			
		}
	});
	
})(jQuery);
/*
 * 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
 *
 * Revision: $Id: ui.draggable.js 5433 2008-05-04 20:07:17Z joern.zaefferer $
 */

;(function($) {
	
	$.widget("ui.draggable", {
		init: function() {
			
			//Initialize needed constants
			var o = this.options;

			//Initialize mouse events for interaction
			this.element.mouse({
				executor: this,
				delay: o.delay,
				distance: o.distance,
				dragPrevention: o.cancel,
				start: this.start,
				stop: this.stop,
				drag: this.drag,
				condition: function(e) {
					var handle = !this.options.handle || !$(this.options.handle, this.element).length ? true : false;
					if(!handle) $(this.options.handle, this.element).each(function() { if(this == e.target) handle = true; });
					return !(e.target.className.indexOf("ui-resizable-handle") != -1 || this.options.disabled) && handle;
				}
			});
			
			//Position the node
			if(o.helper == 'original' && !(/(relative|absolute|fixed)/).test(this.element.css('position')))
				this.element.css('position', 'relative');
			
		},
		start: function(e) {

			var o = this.options;
			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.css("position") || this.helper.css("position") == "static") 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
			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;
				if(o.cursorAt.right != undefined) this.offset.click.left = this.helperProportions.width - o.cursorAt.right;
				if(o.cursorAt.top != undefined) this.offset.click.top = o.cursorAt.top;
				if(o.cursorAt.bottom != undefined) this.offset.click.top = this.helperProportions.height - o.cursorAt.bottom;
			}


			/*
			 * - 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') this.containment = [0,0,$(document).width(), ($(document).height() || document.body.parentNode.scrollHeight)];
				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);

			return false;

		},
		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" ? 0 : this.offsetParent[0].scrollTop) * mod	// The offsetParent's scroll position, not if the element is fixed
					+ 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" ? 0 : this.offsetParent[0].scrollLeft) * mod	// The offsetParent's scroll position, not if the element is fixed
					+ 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" ? 0 : this.offsetParent[0].scrollTop)	// The offsetParent's scroll position, not if the element is fixed
				),
				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" ? 0 : this.offsetParent[0].scrollLeft)	// The offsetParent's scroll position, not if the element is fixed
				)
			};

			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;
		},
		drag: 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 == "x") this.helper[0].style.left = this.position.left+'px';
			if(!this.options.axis || this.options.axis == "y") this.helper[0].style.top = this.position.top+'px';
			if($.ui.ddmanager) $.ui.ddmanager.drag(this, e);
			return false;

		},
		stop: function(e) {
		
			//If we are using droppables, inform the manager about the drop
			if ($.ui.ddmanager && !this.options.dropBehaviour)
				$.ui.ddmanager.drop(this, e);
				
			if(this.options.revert) {
				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() {
			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: {},
		ui: 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.ui()]);
			return this.element.triggerHandler(n == "drag" ? n : "drag"+n, [e, this.ui()], this.options[n]);
		},
		destroy: function() {
			if(!this.element.data('draggable')) return;
			this.element.removeData("draggable").unbind(".draggable").mouse("destroy");
		},
		enable: function() {
			this.options.disabled = false;
		},
		disable: function() {
			this.options.disabled = true;
		}
	});
	
	$.ui.draggable.defaults = {
		helper: "original",
		appendTo: "parent",
		cancel: ['input','textarea','button','select','option'],
		distance: 1,
		delay: 0
	};
	
	
	$.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.sortable = $.data($(ui.options.connectToSortable)[0], 'sortable');
			inst.sortableOffset = inst.sortable.element.offset();
			inst.sortableOuterWidth = inst.sortable.element.outerWidth();
			inst.sortableOuterHeight = inst.sortable.element.outerHeight();
			if(inst.sortable.options.revert) inst.sortable.shouldRevert = true;
		},
		stop: function(e,ui) {
			//If we are still over the sortable, we fake the stop event of the sortable, but also remove helper
			var instDraggable = $(this).data("draggable");
			var inst = instDraggable.sortable;
			
			if(inst.isOver) {
				inst.isOver = 0;
				instDraggable.cancelHelperRemoval = true; //Don't remove the helper in the draggable instance
				inst.cancelHelperRemoval = false; //Remove it in the sortable instance (so sortable plugins like revert still work)
				if(inst.shouldRevert) inst.options.revert = true; //revert here
				inst.stop(e);
				inst.options.helper = "original";
			}
		},
		drag: function(e,ui) {
			//This is handy: We reuse the intersectsWith method for checking if the current draggable helper
			//intersects with the sortable container
			var instDraggable = $(this).data("draggable");
			var inst = instDraggable.sortable;
			instDraggable.position.absolute = ui.absolutePosition; //Sorry, this is an ugly API fix
			
			if(inst.intersectsWith.call(instDraggable, {
				left: instDraggable.sortableOffset.left, top: instDraggable.sortableOffset.top,
				width: instDraggable.sortableOuterWidth, height: instDraggable.sortableOuterHeight
			})) {
				//If it intersects, we use a little isOver variable and set it once, so our move-in stuff gets fired only once
				if(!inst.isOver) {
					inst.isOver = 1;
					
					//Cache the width/height of the new helper
					var height = inst.options.placeholderElement ? $(inst.options.placeholderElement, $(inst.options.items, inst.element)).innerHeight() : $(inst.options.items, inst.element).innerHeight();
					var width = inst.options.placeholderElement ? $(inst.options.placeholderElement, $(inst.options.items, inst.element)).innerWidth() : $(inst.options.items, inst.element).innerWidth();

					//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)
					inst.currentItem = $(this).clone().appendTo(inst.element);
					inst.options.helper = function() { return ui.helper[0]; };
					inst.start(e);
					
					//Because the browser event is way off the new appended portlet, we modify a couple of variables to reflect the changes
					inst.clickOffset.top = instDraggable.offset.click.top;
					inst.clickOffset.left = instDraggable.offset.click.left;
					inst.offset.left -= ui.absolutePosition.left - inst.position.absolute.left;
					inst.offset.top -= ui.absolutePosition.top - inst.position.absolute.top;
					
					//Do a nifty little helper animation: Animate it to the portlet's size (just takes the first 'li' element in the sortable now)
					inst.helperProportions = {width: width, height: height}; //We have to reset the helper proportions, because we are doing our animation there
					ui.helper.animate({height: height, width: width}, 500);
					instDraggable.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(inst.currentItem) inst.drag(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(inst.isOver) {
					inst.isOver = 0;
					inst.cancelHelperRemoval = true;
					inst.options.revert = false; //No revert here
					inst.stop(e);
					inst.options.helper = "original";
					
					//Now we remove our currentItem, the list group clone again, and the placeholder, and animate the helper back to it's original size
					inst.currentItem.remove();
					inst.placeholder.remove();
					
					ui.helper.animate({ height: this.innerHeight(), width: this.innerWidth() }, 500);
					instDraggable.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($(a).css("zIndex")) || ui.options.stack.min) - (parseInt($(b).css("zIndex")) || 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);/*
 * jQuery UI Sortable
 *
 * Copyright (c) 2008 Paul Bakaus
 * Dual licensed under the MIT (MIT-LICENSE.txt)
 * and GPL (GPL-LICENSE.txt) licenses.
 * 
 * http://docs.jquery.com/UI/Sortables
 *
 * Depends:
 *	ui.core.js
 *
 * Revision: $Id: ui.sortable.js 5433 2008-05-04 20:07:17Z joern.zaefferer $
 */
;(function($) {
	
	function contains(a, b) { 
	    var safari2 = $.browser.safari && $.browser.version < 522; 
	    if (a.contains && !safari2) { 
	        return a.contains(b); 
	    } 
	    if (a.compareDocumentPosition) 
	        return !!(a.compareDocumentPosition(b) & 16); 
	    while (b = b.parentNode) 
	          if (b == a) return true; 
	    return false; 
	};
	
	$.widget("ui.sortable", {
		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
			if(!(/(relative|absolute|fixed)/).test(this.element.css('position'))) this.element.css('position', 'relative');
			this.offset = this.element.offset();
	
			//Initialize mouse events for interaction
			this.element.mouse({
				executor: this,
				delay: o.delay,
				distance: o.distance || 1,
				dragPrevention: o.prevention ? o.prevention.toLowerCase().split(',') : ['input','textarea','button','select','option'],
				start: this.start,
				stop: this.stop,
				drag: this.drag,
				condition: function(e) {
	
					if(this.options.disabled || this.options.type == 'static') return false;
	
					//Find out if the clicked node (or one of its parents) is a actual item in this.items
					var currentItem = null, nodes = $(e.target).parents().each(function() {	
						if($.data(this, 'sortable-item')) {
							currentItem = $(this);
							return false;
						}
					});
					if($.data(e.target, 'sortable-item')) currentItem = $(e.target);
					
					if(!currentItem) return false;	
					if(this.options.handle) {
						var validHandle = false;
						$(this.options.handle, currentItem).each(function() { if(this == e.target) validHandle = true; });
						if(!validHandle) return false;
					}
						
					this.currentItem = currentItem;
					return true;
	
				}
			});
			
		},
		plugins: {},
		ui: function(inst) {
			return {
				helper: (inst || this)["helper"],
				placeholder: (inst || this)["placeholder"] || $([]),
				position: (inst || this)["position"].current,
				absolutePosition: (inst || this)["position"].absolute,
				instance: this,
				options: this.options,
				element: this.element,
				item: (inst || this)["currentItem"],
				sender: inst ? inst.element : null
			};		
		},
		propagate: function(n,e,inst) {
			$.ui.plugin.call(this, n, [e, this.ui(inst)]);
			this.element.triggerHandler(n == "sort" ? n : "sort"+n, [e, this.ui(inst)], this.options[n]);
		},
		serialize: function(o) {
			
			var items = $(this.options.items, this.element).not('.ui-sortable-helper'); //Only the items of the sortable itself
			var str = []; o = o || {};
			
			items.each(function() {
				var res = ($(this).attr(o.attribute || 'id') || '').match(o.expression || (/(.+)[-=_](.+)/));
				if(res) str.push((o.key || res[1])+'[]='+(o.key ? res[1] : res[2]));
			});
			
			return str.join('&');
			
		},
		toArray: function(attr) {
			var items = $(this.options.items, this.element).not('.ui-sortable-helper'); //Only the items of the sortable itself
			var ret = [];

			items.each(function() { ret.push($(this).attr(attr || 'id')); });
			return ret;
		},
		enable: function() {
			this.element.removeClass("ui-sortable-disabled");
			this.options.disabled = false;
		},
		disable: function() {
			this.element.addClass("ui-sortable-disabled");
			this.options.disabled = true;
		},
		/* Be careful with the following core functions */
		intersectsWith: function(item) {
			
			var x1 = this.position.absolute.left, x2 = x1 + this.helperProportions.width,
			y1 = this.position.absolute.top, y2 = y1 + this.helperProportions.height;
			var l = item.left, r = l + item.width, 
			t = item.top, b = t + item.height;

			if(this.options.tolerance == "pointer") {
				return (y1 + this.clickOffset.top > t && y1 + this.clickOffset.top < b && x1 + this.clickOffset.left > l && x1 + this.clickOffset.left < r);
			} 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
			
			}
			
		},
		intersectsWithEdge: function(item) {	
			var x1 = this.position.absolute.left, x2 = x1 + this.helperProportions.width,
				y1 = this.position.absolute.top, y2 = y1 + this.helperProportions.height;
			var l = item.left, r = l + item.width, 
				t = item.top, b = t + item.height;

			if(this.options.tolerance == "pointer") {

				if(!(y1 + this.clickOffset.top > t && y1 + this.clickOffset.top < b && x1 + this.clickOffset.left > l && x1 + this.clickOffset.left < r)) return false;
				
				if(this.floating) {
					if(x1 + this.clickOffset.left > l && x1 + this.clickOffset.left < l + item.width/2) return 2;
					if(x1 + this.clickOffset.left > l+item.width/2 && x1 + this.clickOffset.left < r) return 1;
				} else {
					if(y1 + this.clickOffset.top > t && y1 + this.clickOffset.top < t + item.height/2) return 2;
					if(y1 + this.clickOffset.top > t+item.height/2 && y1 + this.clickOffset.top < b) return 1;
				}

			} else {
			
				if (!(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 )) return false; // Top Half
				
				if(this.floating) {
					if(x2 > l && x1 < l) return 2; //Crosses left edge
					if(x1 < r && x2 > r) return 1; //Crosses right edge
				} else {
					if(y2 > t && y1 < t) return 1; //Crosses top edge
					if(y1 < b && y2 > b) return 2; //Crosses bottom edge
				}
			
			}
			
			return false;
			
		},
		//This method checks approximately if the item is dragged in a container, but doesn't touch any items
		inEmptyZone: function(container) {

			if(!$(container.options.items, container.element).length) {
				return container.options.dropOnEmpty ? true : false;
			};

			var last = $(container.options.items, container.element).not('.ui-sortable-helper'); last = $(last[last.length-1]);
			var top = last.offset()[this.floating ? 'left' : 'top'] + last[0][this.floating ? 'offsetWidth' : 'offsetHeight'];
			return (this.position.absolute[this.floating ? 'left' : 'top'] > top);
		},
		refresh: function() {
			this.refreshItems();
			this.refreshPositions();
		},
		refreshItems: function() {
			
			this.items = [];
			this.containers = [this];
			var items = this.items;
			var queries = [$(this.options.items, this.element)];
			
			if(this.options.connectWith) {
				for (var i = this.options.connectWith.length - 1; i >= 0; i--){
					var cur = $(this.options.connectWith[i]);
					for (var j = cur.length - 1; j >= 0; j--){
						var inst = $.data(cur[j], 'sortable');
						if(inst && !inst.options.disabled) {
							queries.push($(inst.options.items, inst.element));
							this.containers.push(inst);
						}
					};
				};
			}

			for (var i = queries.length - 1; i >= 0; i--){
				queries[i].each(function() {
					$.data(this, 'sortable-item', true); // Data for target checking (mouse manager)
					items.push({
						item: $(this),
						width: 0, height: 0,
						left: 0, top: 0
					});
				});
			};

		},
		refreshPositions: function(fast) {
			for (var i = this.items.length - 1; i >= 0; i--){
				var t = this.items[i].item;
				if(!fast) this.items[i].width = (this.options.toleranceElement ? $(this.options.toleranceElement, t) : t).outerWidth();
				if(!fast) this.items[i].height = (this.options.toleranceElement ? $(this.options.toleranceElement, t) : t).outerHeight();
				var p = (this.options.toleranceElement ? $(this.options.toleranceElement, t) : t).offset();
				this.items[i].left = p.left;
				this.items[i].top = p.top;
			};
			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();
			};
		},
		destroy: function() {
			this.element
				.removeClass("ui-sortable ui-sortable-disabled")
				.removeData("sortable")
				.unbind(".sortable")
				.mouse("destroy");
			
			for ( var i = this.items.length - 1; i >= 0; i-- )
				this.items[i].item.removeData("sortable-item");
		},
		createPlaceholder: function(that) {
			(that || this).placeholderElement = this.options.placeholderElement ? $(this.options.placeholderElement, (that || this).currentItem) : (that || this).currentItem;
			(that || this).placeholder = $('<div></div>')
				.addClass(this.options.placeholder)
				.appendTo('body')
				.css({ position: 'absolute' })
				.css((that || this).placeholderElement.offset())
				.css({ width: (that || this).placeholderElement.outerWidth(), height: (that || this).placeholderElement.outerHeight() })
				;
		},
		contactContainers: function(e) {
			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.position.absolute[this.containers[i].floating ? 'left' : 'top'];
							for (var j = this.items.length - 1; j >= 0; j--) {
								if(!contains(this.containers[i].element[0], this.items[j].item[0])) continue;
								var cur = this.items[j][this.containers[i].floating ? 'left' : 'top'];
								if(Math.abs(cur - base) < dist) {
									dist = Math.abs(cur - base); itemWithLeastDistance = this.items[j];
								}
							}
							
							//We also need to exchange the placeholder
							if(this.placeholder) this.placeholder.remove();
							if(this.containers[i].options.placeholder) {
								this.containers[i].createPlaceholder(this);
							} else {
								this.placeholder = null; this.placeholderElement = null;
							}
							
							
							itemWithLeastDistance ? this.rearrange(e, itemWithLeastDistance) : this.rearrange(e, null, this.containers[i].element);
							this.propagate("change", e); //Call plugins and callbacks
							this.containers[i].propagate("change", e, this); //Call plugins and callbacks
							this.currentContainer = this.containers[i];

						}
						
						this.containers[i].propagate("over", e, this);
						this.containers[i].containerCache.over = 1;
					}
				} else {
					if(this.containers[i].containerCache.over) {
						this.containers[i].propagate("out", e, this);
						this.containers[i].containerCache.over = 0;
					}
				}
				
			};			
		},
		start: function(e,el) {
		
			var o = this.options;
			this.currentContainer = this;
			this.refresh();

			//Create and append the visible helper
			this.helper = typeof o.helper == 'function' ? $(o.helper.apply(this.element[0], [e, this.currentItem])) : this.currentItem.clone();
			if(!this.helper.parents('body').length) this.helper.appendTo(o.appendTo || this.currentItem[0].parentNode); //Add the helper to the DOM if that didn't happen already
			this.helper.css({ position: 'absolute', clear: 'both' }).addClass('ui-sortable-helper'); //Position it absolutely and add a helper class
			
			//Prepare variables for position generation
			$.extend(this, {
				offsetParent: this.helper.offsetParent(),
				offsets: {
					absolute: this.currentItem.offset()
				},
				mouse: {
					start: { top: e.pageY, left: e.pageX }
				},
				margins: {
					top: parseInt(this.currentItem.css("marginTop")) || 0,
					left: parseInt(this.currentItem.css("marginLeft")) || 0
				}
			});
			
			//The relative click offset
			this.offsets.parent = this.offsetParent.offset();
			this.clickOffset = { left: e.pageX - this.offsets.absolute.left, top: e.pageY - this.offsets.absolute.top };
			
			this.originalPosition = {
				left: this.offsets.absolute.left - this.offsets.parent.left - this.margins.left,
				top: this.offsets.absolute.top - this.offsets.parent.top - this.margins.top
			}
			
			//Generate a flexible offset that will later be subtracted from e.pageX/Y
			//I hate margins - they need to be removed before positioning the element absolutely..
			this.offset = {
				left: e.pageX - this.originalPosition.left,
				top: e.pageY - this.originalPosition.top
			};

			//Save the first time position
			$.extend(this, {
				position: {
					current: { top: e.pageY - this.offset.top, left: e.pageX - this.offset.left },
					absolute: { left: e.pageX - this.clickOffset.left, top: e.pageY - this.clickOffset.top },
					dom: this.currentItem.prev()[0]
				}
			});

			//If o.placeholder is used, create a new element at the given position with the class
			if(o.placeholder) this.createPlaceholder();

			this.propagate("start", e); //Call plugins and callbacks
			this.helperProportions = { width: this.helper.outerWidth(), height: this.helper.outerHeight() }; //Save and store the helper proportions

			//If we have something in cursorAt, we'll use it
			if(o.cursorAt) {
				if(o.cursorAt.top != undefined || o.cursorAt.bottom != undefined) {
					this.offset.top -= this.clickOffset.top - (o.cursorAt.top != undefined ? o.cursorAt.top : (this.helperProportions.height - o.cursorAt.bottom));
					this.clickOffset.top = (o.cursorAt.top != undefined ? o.cursorAt.top : (this.helperProportions.height - o.cursorAt.bottom));
				}
				if(o.cursorAt.left != undefined || o.cursorAt.right != undefined) {
					this.offset.left -= this.clickOffset.left - (o.cursorAt.left != undefined ? o.cursorAt.left : (this.helperProportions.width - o.cursorAt.right));
					this.clickOffset.left = (o.cursorAt.left != undefined ? o.cursorAt.left : (this.helperProportions.width - o.cursorAt.right));
				}
			}

			if(this.options.placeholder != 'clone') $(this.currentItem).css('visibility', 'hidden'); //Set the original element visibility to hidden to still fill out the white space
			for (var i = this.containers.length - 1; i >= 0; i--) { this.containers[i].propagate("activate", e, this); } //Post 'activate' events to possible containers
			
			//Prepare possible droppables
			if($.ui.ddmanager) $.ui.ddmanager.current = this;
			if ($.ui.ddmanager && !o.dropBehaviour) $.ui.ddmanager.prepareOffsets(this, e);

			this.dragging = true;
			return false;
			
		},
		stop: function(e) {

			this.propagate("stop", e); //Call plugins and trigger callbacks
			if(this.position.dom != this.currentItem.prev()[0]) this.propagate("update", e); //Trigger update callback if the DOM position has changed
			if(!contains(this.element[0], this.currentItem[0])) { //Node was moved out of the current element
				this.propagate("remove", e);
				for (var i = this.containers.length - 1; i >= 0; i--){
					if(contains(this.containers[i].element[0], this.currentItem[0])) {
						this.containers[i].propagate("update", e, this);
						this.containers[i].propagate("receive", e, this);
					}
				};
			};
			
			//Post events to containers
			for (var i = this.containers.length - 1; i >= 0; i--){
				this.containers[i].propagate("deactivate", e, this);
				if(this.containers[i].containerCache.over) {
					this.containers[i].propagate("out", e, this);
					this.containers[i].containerCache.over = 0;
				}
			}
			
			//If we are using droppables, inform the manager about the drop
			if ($.ui.ddmanager && !this.options.dropBehaviour) $.ui.ddmanager.drop(this, e);
			
			this.dragging = false;
			if(this.cancelHelperRemoval) return false;
			$(this.currentItem).css('visibility', '');
			if(this.placeholder) this.placeholder.remove();
			this.helper.remove();

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

			//Compute the helpers position
			this.position.current = { top: e.pageY - this.offset.top, left: e.pageX - this.offset.left };
			this.position.absolute = { left: e.pageX - this.clickOffset.left, top: e.pageY - this.clickOffset.top };

			//Rearrange
			for (var i = this.items.length - 1; i >= 0; i--) {
				var intersection = this.intersectsWithEdge(this.items[i]);
				if(!intersection) continue;
				
				if(this.items[i].item[0] != this.currentItem[0] //cannot intersect with itself
					&&	this.currentItem[intersection == 1 ? "next" : "prev"]()[0] != this.items[i].item[0] //no useless actions that have been done before
					&&	!contains(this.currentItem[0], this.items[i].item[0]) //no action if the item moved is the parent of the item checked
					&& (this.options.type == 'semi-dynamic' ? !contains(this.element[0], this.items[i].item[0]) : true)
				) {
					
					this.direction = intersection == 1 ? "down" : "up";
					this.rearrange(e, this.items[i]);
					this.propagate("change", e); //Call plugins and callbacks
					break;
				}
			}
			
			//Post events to containers
			this.contactContainers(e);
			
			//Interconnect with droppables
			if($.ui.ddmanager) $.ui.ddmanager.drag(this, e);

			this.propagate("sort", e); //Call plugins and callbacks
			this.helper.css({ left: this.position.current.left+'px', top: this.position.current.top+'px' }); // Stick the helper to the cursor
			return false;
			
		},
		rearrange: function(e, i, a) {
			a ? a.append(this.currentItem) : i.item[this.direction == 'down' ? 'before' : 'after'](this.currentItem);
			this.refreshPositions(true); //Precompute after each DOM insertion, NOT on mousemove
			if(this.placeholderElement) this.placeholder.css(this.placeholderElement.offset());
			if(this.placeholderElement && this.placeholderElement.is(":visible")) this.placeholder.css({ width: this.placeholderElement.outerWidth(), height: this.placeholderElement.outerHeight() });
		}
	});
	
	$.extend($.ui.sortable, {
		getter: "serialize toArray",
		defaults: {
			items: '> *',
			zIndex: 1000
		}
	});

	
/*
 * Sortable Extensions
 */

	$.ui.plugin.add("sortable", "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("sortable", "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("sortable", "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("sortable", "revert", {
		stop: function(e, ui) {
			var self = ui.instance;
			self.cancelHelperRemoval = true;
			var cur = self.currentItem.offset();
			var op = self.helper.offsetParent().offset();
			if(ui.instance.options.zIndex) ui.helper.css('zIndex', ui.instance.options.zIndex); //Do the zIndex again because it already was resetted by the plugin above on stop

			//Also animate the placeholder if we have one
			if(ui.instance.placeholder) ui.instance.placeholder.animate({ opacity: 'hide' }, parseInt(ui.options.revert, 10) || 500);
			
			
			ui.helper.animate({
				left: cur.left - op.left - self.margins.left,
				top: cur.top - op.top - self.margins.top
			}, parseInt(ui.options.revert, 10) || 500, function() {
				self.currentItem.css('visibility', 'visible');
				window.setTimeout(function() {
					if(self.placeholder) self.placeholder.remove();
					self.helper.remove();
					if(ui.options._zIndex) ui.helper.css('zIndex', ui.options._zIndex);
				}, 50);
			});
		}
	});

	
	$.ui.plugin.add("sortable", "containment", {
		start: function(e, ui) {

			var o = ui.options;
			if((o.containment.left != undefined || o.containment.constructor == Array) && !o._containment) return;
			if(!o._containment) o._containment = o.containment;

			if(o._containment == 'parent') o._containment = this[0].parentNode;
			if(o._containment == 'sortable') o._containment = this[0];
			if(o._containment == 'document') {
				o.containment = [
					0,
					0,
					$(document).width(),
					($(document).height() || document.body.parentNode.scrollHeight)
				];
			} else { //I'm a node, so compute top/left/right/bottom

				var ce = $(o._containment);
				var co = ce.offset();

				o.containment = [
					co.left,
					co.top,
					co.left+(ce.outerWidth() || ce[0].scrollWidth),
					co.top+(ce.outerHeight() || ce[0].scrollHeight)
				];
			}

		},
		sort: function(e, ui) {

			var o = ui.options;
			var h = ui.helper;
			var c = o.containment;
			var self = ui.instance;
			var borderLeft = (parseInt(self.offsetParent.css("borderLeftWidth"), 10) || 0);
			var borderRight = (parseInt(self.offsetParent.css("borderRightWidth"), 10) || 0);
			var borderTop = (parseInt(self.offsetParent.css("borderTopWidth"), 10) || 0);
			var borderBottom = (parseInt(self.offsetParent.css("borderBottomWidth"), 10) || 0);
			
			if(c.constructor == Array) {
				if((self.position.absolute.left < c[0])) self.position.current.left = c[0] - self.offsets.parent.left - self.margins.left;
				if((self.position.absolute.top < c[1])) self.position.current.top = c[1] - self.offsets.parent.top - self.margins.top;
				if(self.position.absolute.left - c[2] + self.helperProportions.width >= 0) self.position.current.left = c[2] - self.offsets.parent.left - self.helperProportions.width - self.margins.left - borderLeft - borderRight;
				if(self.position.absolute.top - c[3] + self.helperProportions.height >= 0) self.position.current.top = c[3] - self.offsets.parent.top - self.helperProportions.height - self.margins.top - borderTop - borderBottom;
			} else {
				if((ui.position.left < c.left)) self.position.current.left = c.left;
				if((ui.position.top < c.top)) self.position.current.top = c.top;
				if(ui.position.left - self.offsetParent.innerWidth() + self.helperProportions.width + c.right + borderLeft + borderRight >= 0) self.position.current.left = self.offsetParent.innerWidth() - self.helperProportions.width - c.right - borderLeft - borderRight;
				if(ui.position.top - self.offsetParent.innerHeight() + self.helperProportions.height + c.bottom + borderTop + borderBottom >= 0) self.position.current.top = self.offsetParent.innerHeight() - self.helperProportions.height - c.bottom - borderTop - borderBottom;
			}

		}
	});

	$.ui.plugin.add("sortable", "axis", {
		sort: function(e, ui) {
			var o = ui.options;
			if(o.constraint) o.axis = o.constraint; //Legacy check
			o.axis == 'x' ? ui.instance.position.current.top = ui.instance.originalPosition.top : ui.instance.position.current.left = ui.instance.originalPosition.left;
		}
	});

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

			ui.instance.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);
			ui.instance.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(ui.instance.overflowY[0] != document && ui.instance.overflowY[0].tagName != 'HTML') ui.instance.overflowYstart = ui.instance.overflowY[0].scrollTop;
			if(ui.instance.overflowX[0] != document && ui.instance.overflowX[0].tagName != 'HTML') ui.instance.overflowXstart = ui.instance.overflowX[0].scrollLeft;
			
		},
		sort: function(e, ui) {
			
			var o = ui.options;
			var i = ui.instance;

			if(i.overflowY[0] != document && i.overflowY[0].tagName != 'HTML') {
				if(i.overflowY[0].offsetHeight - (ui.position.top - i.overflowY[0].scrollTop + i.clickOffset.top) < o.scrollSensitivity)
					i.overflowY[0].scrollTop = i.overflowY[0].scrollTop + o.scrollSpeed;
				if((ui.position.top - i.overflowY[0].scrollTop + i.clickOffset.top) < o.scrollSensitivity)
					i.overflowY[0].scrollTop = i.overflowY[0].scrollTop - o.scrollSpeed;				
			} else {
				//$(document.body).append('<p>'+(e.pageY - $(document).scrollTop())+'</p>');
				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.overflowX[0].offsetWidth - (ui.position.left - i.overflowX[0].scrollLeft + i.clickOffset.left) < o.scrollSensitivity)
					i.overflowX[0].scrollLeft = i.overflowX[0].scrollLeft + o.scrollSpeed;
				if((ui.position.top - i.overflowX[0].scrollLeft + i.clickOffset.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.instance.recallOffset(e);
			i.offset = {
				left: i.mouse.start.left - i.originalPosition.left + (i.overflowXstart !== undefined ? i.overflowXstart - i.overflowX[0].scrollLeft : 0),
				top: i.mouse.start.top - i.originalPosition.top + (i.overflowYstart !== undefined ? i.overflowYstart - i.overflowX[0].scrollTop : 0)
			};

		}
	});

})(jQuery);