/*
 * 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
 */
;(function($) {

/** jQuery core modifications and additions **/

var _remove = $.fn.remove;
$.fn.remove = function() {
	$("*", this).add(this).triggerHandler("remove");
	return _remove.apply(this, arguments );
};

function isVisible(element) {
	function checkStyles(element) {
		var style = element.style;
		return (style.display != 'none' && style.visibility != 'hidden');
	}
	
	var visible = checkStyles(element);
	
	(visible && $.each($.dir(element, 'parentNode'), function() {
		return (visible = checkStyles(this));
	}));
	
	return visible;
}

$.extend($.expr[':'], {
	data: function(a, i, m) {
		return $.data(a, m[3]);
	},
	
	// TODO: add support for object, area
	tabbable: function(a, i, m) {
		var nodeName = a.nodeName.toLowerCase();
		
		return (
			// in tab order
			a.tabIndex >= 0 &&
			
			( // filter node types that participate in the tab order
				
				// anchor tag
				('a' == nodeName && a.href) ||
				
				// enabled form element
				(/input|select|textarea|button/.test(nodeName) &&
					'hidden' != a.type && !a.disabled)
			) &&
			
			// visible on page
			isVisible(a)
		);
	}
});

$.keyCode = {
	BACKSPACE: 8,
	CAPS_LOCK: 20,
	COMMA: 188,
	CONTROL: 17,
	DELETE: 46,
	DOWN: 40,
	END: 35,
	ENTER: 13,
	ESCAPE: 27,
	HOME: 36,
	INSERT: 45,
	LEFT: 37,
	NUMPAD_ADD: 107,
	NUMPAD_DECIMAL: 110,
	NUMPAD_DIVIDE: 111,
	NUMPAD_ENTER: 108,
	NUMPAD_MULTIPLY: 106,
	NUMPAD_SUBTRACT: 109,
	PAGE_DOWN: 34,
	PAGE_UP: 33,
	PERIOD: 190,
	RIGHT: 39,
	SHIFT: 16,
	SPACE: 32,
	TAB: 9,
	UP: 38
};

// $.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, args) {
	function getMethods(type) {
		var methods = $[namespace][plugin][type] || [];
		return (typeof methods == 'string' ? methods.split(/,?\s+/) : methods);
	}
	
	var methods = getMethods('getter');
	if (args.length == 1 && typeof args[0] == 'string') {
		methods = methods.concat(getMethods('getterSetter'));
	}
	return ($.inArray(method, methods) != -1);
}

$.widget = function(name, prototype) {
	var namespace = name.split(".")[0];
	name = name.split(".")[1];
	
	// create plugin method
	$.fn[name] = function(options) {
		var isMethodCall = (typeof options == 'string'),
			args = Array.prototype.slice.call(arguments, 1);
		
		// prevent calls to internal methods
		if (isMethodCall && options.substring(0, 1) == '_') {
			return this;
		}
		
		// handle getter methods
		if (isMethodCall && getter(namespace, name, options, args)) {
			var instance = $.data(this[0], name);
			return (instance ? instance[options].apply(instance, args)
				: undefined);
		}
		
		// handle initialization and non-getter methods
		return this.each(function() {
			var instance = $.data(this, name);
			
			// constructor
			(!instance && !isMethodCall &&
				$.data(this, name, new $[namespace][name](this, options)));
			
			// method call
			(instance && isMethodCall && $.isFunction(instance[options]) &&
				instance[options].apply(instance, args));
		});
	};
	
	// create widget constructor
	$[namespace][name] = function(element, options) {
		var self = this;
		
		this.widgetName = name;
		this.widgetEventPrefix = $[namespace][name].eventPrefix || name;
		this.widgetBaseClass = namespace + '-' + name;
		
		this.options = $.extend({},
			$.widget.defaults,
			$[namespace][name].defaults,
			$.metadata && $.metadata.get(element)[name],
			options);
		
		this.element = $(element)
			.bind('setData.' + name, function(e, key, value) {
				return self._setData(key, value);
			})
			.bind('getData.' + name, function(e, key) {
				return self._getData(key);
			})
			.bind('remove', function() {
				return self.destroy();
			});
		
		this._init();
	};
	
	// add widget prototype
	$[namespace][name].prototype = $.extend({}, $.widget.prototype, prototype);
	
	// TODO: merge getter and getterSetter properties from widget prototype
	// and plugin prototype
	$[namespace][name].getterSetter = 'option';
};

$.widget.prototype = {
	_init: function() {},
	destroy: function() {
		this.element.removeData(this.widgetName);
	},
	
	option: function(key, value) {
		var options = key,
			self = this;
		
		if (typeof key == "string") {
			if (value === undefined) {
				return this._getData(key);
			}
			options = {};
			options[key] = value;
		}
		
		$.each(options, function(key, value) {
			self._setData(key, value);
		});
	},
	_getData: function(key) {
		return this.options[key];
	},
	_setData: function(key, value) {
		this.options[key] = value;
		
		if (key == 'disabled') {
			this.element[value ? 'addClass' : 'removeClass'](
				this.widgetBaseClass + '-disabled');
		}
	},
	
	enable: function() {
		this._setData('disabled', false);
	},
	disable: function() {
		this._setData('disabled', true);
	},
	
	_trigger: function(type, e, data) {
		var eventName = (type == this.widgetEventPrefix
			? type : this.widgetEventPrefix + type);
		e = e  || $.event.fix({ type: eventName, target: this.element[0] });
		return this.element.triggerHandler(eventName, [e, data], this.options[type]);
	}
};

$.widget.defaults = {
	disabled: false
};


/** jQuery UI core **/

$.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-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(el) {
		return $(el)
			.attr('unselectable', 'on')
			.css('MozUserSelect', 'none')
			.bind('selectstart.ui', function() { return false; });
	},
	enableSelection: function(el) {
		return $(el)
			.attr('unselectable', 'off')
			.css('MozUserSelect', '')
			.unbind('selectstart.ui');
	},
	hasScroll: function(e, a) {
		
		//If overflow is hidden, the element might have extra content, but the user wants to hide it
		if ($(e).css('overflow') == 'hidden') { return false; }
		
		var scroll = (a && a == 'left') ? 'scrollLeft' : 'scrollTop',
			has = false;
		
		if (e[scroll] > 0) { return true; }
		
		// TODO: determine which cases actually cause this to happen
		// if the element doesn't have the scroll set, see if it's possible to
		// set the scroll
		e[scroll] = 1;
		has = (e[scroll] > 0);
		e[scroll] = 0;
		return has;
	}
};


/** Mouse Interaction Plugin **/

$.ui.mouse = {
	_mouseInit: function() {
		var self = this;
	
		this.element.bind('mousedown.'+this.widgetName, function(e) {
			return self._mouseDown(e);
		});
		
		// Prevent text selection in IE
		if ($.browser.msie) {
			this._mouseUnselectable = this.element.attr('unselectable');
			this.element.attr('unselectable', 'on');
		}
		
		this.started = false;
	},
	
	// TODO: make sure destroying one instance of mouse doesn't mess with
	// other instances of mouse
	_mouseDestroy: function() {
		this.element.unbind('.'+this.widgetName);
		
		// Restore text selection in IE
		($.browser.msie
			&& this.element.attr('unselectable', this._mouseUnselectable));
	},
	
	_mouseDown: function(e) {
		// we may have missed mouseup (out of window)
		(this._mouseStarted && this._mouseUp(e));
		
		this._mouseDownEvent = e;
		
		var self = this,
			btnIsLeft = (e.which == 1),
			elIsCancel = (typeof this.options.cancel == "string" ? $(e.target).parents().add(e.target).filter(this.options.cancel).length : false);
		if (!btnIsLeft || elIsCancel || !this._mouseCapture(e)) {
			return true;
		}
		
		this.mouseDelayMet = !this.options.delay;
		if (!this.mouseDelayMet) {
			this._mouseDelayTimer = setTimeout(function() {
				self.mouseDelayMet = true;
			}, this.options.delay);
		}
		
		if (this._mouseDistanceMet(e) && this._mouseDelayMet(e)) {
			this._mouseStarted = (this._mouseStart(e) !== false);
			if (!this._mouseStarted) {
				e.preventDefault();
				return true;
			}
		}
		
		// these delegates are required to keep context
		this._mouseMoveDelegate = function(e) {
			return self._mouseMove(e);
		};
		this._mouseUpDelegate = function(e) {
			return self._mouseUp(e);
		};
		$(document)
			.bind('mousemove.'+this.widgetName, this._mouseMoveDelegate)
			.bind('mouseup.'+this.widgetName, this._mouseUpDelegate);
		
		return false;
	},
	
	_mouseMove: function(e) {
		// IE mouseup check - mouseup happened when mouse was out of window
		if ($.browser.msie && !e.button) {
			return this._mouseUp(e);
		}
		
		if (this._mouseStarted) {
			this._mouseDrag(e);
			return false;
		}
		
		if (this._mouseDistanceMet(e) && this._mouseDelayMet(e)) {
			this._mouseStarted =
				(this._mouseStart(this._mouseDownEvent, e) !== false);
			(this._mouseStarted ? this._mouseDrag(e) : this._mouseUp(e));
		}
		
		return !this._mouseStarted;
	},
	
	_mouseUp: function(e) {
		$(document)
			.unbind('mousemove.'+this.widgetName, this._mouseMoveDelegate)
			.unbind('mouseup.'+this.widgetName, this._mouseUpDelegate);
		
		if (this._mouseStarted) {
			this._mouseStarted = false;
			this._mouseStop(e);
		}
		
		return false;
	},
	
	_mouseDistanceMet: function(e) {
		return (Math.max(
				Math.abs(this._mouseDownEvent.pageX - e.pageX),
				Math.abs(this._mouseDownEvent.pageY - e.pageY)
			) >= this.options.distance
		);
	},
	
	_mouseDelayMet: function(e) {
		return this.mouseDelayMet;
	},
	
	// These are placeholder methods, to be overriden by extending plugin
	_mouseStart: function(e) {},
	_mouseDrag: function(e) {},
	_mouseStop: function(e) {},
	_mouseCapture: function(e) { return true; }
};

$.ui.mouse.defaults = {
	cancel: null,
	distance: 1,
	delay: 0
};

})(jQuery);
/*
 * jQuery UI Draggable @VERSION
 *
 * 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, {
	
	getHandle: function(e) {

		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;
			});
		
		return handle;

	},
	
	createHelper: function() {

		var o = this.options;
		var helper = $.isFunction(o.helper) ? $(o.helper.apply(this.element[0], [e])) : (o.helper == 'clone' ? this.element.clone() : this.element);
		
		if(!helper.parents('body').length)
			helper.appendTo((o.appendTo == 'parent' ? this.element[0].parentNode : o.appendTo));
			
		if(helper[0] != this.element[0] && !(/(fixed|absolute)/).test(helper.css("position")))
			helper.css("position", "absolute");
			
		return helper;
		
	},
	
	
	_init: function() {
		
		if (this.options.helper == 'original' && !(/^(?:r|a|f)/).test(this.element.css("position")))
			this.element[0].style.position = 'relative';
		
		(this.options.cssNamespace && this.element.addClass(this.options.cssNamespace+"-draggable"));
		(this.options.disabled && this.element.addClass('ui-draggable-disabled'));
		
		this._mouseInit();
		
	},

	_mouseCapture: function(e) {

		var o = this.options;
		
		if (this.helper || o.disabled || $(e.target).is('.ui-resizable-handle'))
			return false;
			
		//Quit if we're not on a valid handle
		this.handle = this.getHandle(e);
		if (!this.handle)
			return false;
		
		return true;

	},

	_mouseStart: function(e) {
		
		var o = this.options;
		
		//Create and append the visible helper
		this.helper = this.createHelper();
		
		//If ddmanager is used for droppables, set the global draggable
		if($.ui.ddmanager)
			$.ui.ddmanager.current = this;
		
		/*
		 * - Position generation -
		 * This block generates everything position related - it's the core of draggables.
		 */
		
		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
		};

		//Calling this method cached the next parents that have scrollTop / scrollLeft attached
		this.cacheScrollParents();
		
		
		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)
		};
		
		//This is a relative to absolute position minus the actual position calculation - only used for relative positioned helper
		if(this.cssPosition == "relative") {
			var p = this.element.position();
			this.offset.relative = {
				top: p.top - (parseInt(this.helper.css("top"),10) || 0) + this.scrollTopParent.scrollTop(),
				left: p.left - (parseInt(this.helper.css("left"),10) || 0) + this.scrollLeftParent.scrollLeft()
			};
		} else {
			this.offset.relative = { top: 0, left: 0 };
		}
		
		//Generate the original position
		this.originalPosition = this._generatePosition(e);
		
		//Cache the helper size
		this.cacheHelperProportions();
		
		//Adjust the mouse offset relative to the helper if 'cursorAt' is supplied
		if(o.cursorAt)
			this.adjustOffsetFromHelper(o.cursorAt);

		//Cache later used stuff
		$.extend(this, {
			PAGEY_INCLUDES_SCROLL: (this.cssPosition == "absolute" && (!this.scrollTopParent[0].tagName || (/(html|body)/i).test(this.scrollTopParent[0].tagName))),
			PAGEX_INCLUDES_SCROLL: (this.cssPosition == "absolute" && (!this.scrollLeftParent[0].tagName || (/(html|body)/i).test(this.scrollLeftParent[0].tagName))),
			OFFSET_PARENT_NOT_SCROLL_PARENT_Y: this.scrollTopParent[0] != this.offsetParent[0] && !(this.scrollTopParent[0] == document && (/(body|html)/i).test(this.offsetParent[0].tagName)),
			OFFSET_PARENT_NOT_SCROLL_PARENT_X: this.scrollLeftParent[0] != this.offsetParent[0] && !(this.scrollLeftParent[0] == document && (/(body|html)/i).test(this.offsetParent[0].tagName))
		});
		
		if(o.containment)
			this.setContainment();

		
		//Call plugins and callbacks
		this._propagate("start", e);
		
		//Recache the helper size
		this.cacheHelperProportions();
		
		//Prepare the droppable offsets
		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;
	},
	
	cacheScrollParents: function() {

		this.scrollTopParent = 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.helper);
		this.scrollLeftParent = 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.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;
	},
	
	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,
			$(o.containment == 'document' ? document : window).width() - this.offset.relative.left - this.offset.parent.left - this.helperProportions.width - this.margins.left - (parseInt(this.element.css("marginRight"),10) || 0),
			($(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 = $(o.containment).offset();
			var over = ($(ce).css("overflow") != 'hidden');
			
			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+(over ? Math.max(ce.scrollWidth,ce.offsetWidth) : ce.offsetWidth) - (parseInt($(ce).css("borderLeftWidth"),10) || 0) - this.offset.relative.left - this.offset.parent.left - this.helperProportions.width - this.margins.left - (parseInt(this.element.css("marginRight"),10) || 0),
				co.top+(over ? Math.max(ce.scrollHeight,ce.offsetHeight) : ce.offsetHeight) - (parseInt($(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)
			];
		}

	},
	
	
	_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.PAGEY_INCLUDES_SCROLL || this.OFFSET_PARENT_NOT_SCROLL_PARENT_Y ? 0 : this.scrollTopParent.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.PAGEX_INCLUDES_SCROLL || this.OFFSET_PARENT_NOT_SCROLL_PARENT_X ? 0 : this.scrollLeftParent.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.PAGEY_INCLUDES_SCROLL || this.OFFSET_PARENT_NOT_SCROLL_PARENT_Y ? 0 : this.scrollTopParent.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.PAGEX_INCLUDES_SCROLL || this.OFFSET_PARENT_NOT_SCROLL_PARENT_X ? 0 : this.scrollLeftParent.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 || ($.isFunction(this.options.revert) && this.options.revert.call(this.element, dropped))) {
			var self = this;
			$(this.helper).animate(this.originalPosition, parseInt(this.options.revertDuration, 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 ui-draggable-dragging ui-draggable-disabled');
		this._mouseDestroy();
	}
}));

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

$.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.ui-draggable-iframeFix").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, scrolled = false;
		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 = scrolled = i.overflowY[0].scrollTop + o.scrollSpeed;
			if(e.pageY - i.overflowYOffset.top < o.scrollSensitivity)
				i.overflowY[0].scrollTop = scrolled = i.overflowY[0].scrollTop - o.scrollSpeed;
							
		} else {
			if(e.pageY - $(document).scrollTop() < o.scrollSensitivity)
				scrolled = $(document).scrollTop($(document).scrollTop() - o.scrollSpeed);
			if($(window).height() - (e.pageY - $(document).scrollTop()) < o.scrollSensitivity)
				scrolled = $(document).scrollTop($(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 = scrolled = i.overflowX[0].scrollLeft + o.scrollSpeed;
			if(e.pageX - i.overflowXOffset.left < o.scrollSensitivity)
				i.overflowX[0].scrollLeft = scrolled = i.overflowX[0].scrollLeft - o.scrollSpeed;
		} else {
			if(e.pageX - $(document).scrollLeft() < o.scrollSensitivity)
				scrolled = $(document).scrollLeft($(document).scrollLeft() - o.scrollSpeed);
			if($(window).width() - (e.pageX - $(document).scrollLeft()) < o.scrollSensitivity)
				scrolled = $(document).scrollLeft($(document).scrollLeft() + o.scrollSpeed);
		}
		
		if(scrolled !== false)
			$.ui.ddmanager.prepareOffsets(i, e);
		
	}
});


$.ui.plugin.add("draggable", "snap", {
	start: function(e, ui) {
		
		var inst = $(this).data("draggable");
		inst.snapElements = [];

		$(ui.options.snap.constructor != String ? ( ui.options.snap.items || ':data(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))) {
				if(inst.snapElements[i].snapping) (inst.options.snap.release && inst.options.snap.release.call(inst.element, null, $.extend(inst.uiHash(), { snapItem: inst.snapElements[i].item })));
				inst.snapElements[i].snapping = false;
				continue;
			}
		
			if(ui.options.snapMode != 'inner') {
				var ts = Math.abs(t - y2) <= d;
				var bs = Math.abs(b - y1) <= d;
				var ls = Math.abs(l - x2) <= d;
				var rs = Math.abs(r - x1) <= d;
				if(ts) ui.position.top = inst._convertPositionTo("relative", { top: t - inst.helperProportions.height, left: 0 }).top;
				if(bs) ui.position.top = inst._convertPositionTo("relative", { top: b, left: 0 }).top;
				if(ls) ui.position.left = inst._convertPositionTo("relative", { top: 0, left: l - inst.helperProportions.width }).left;
				if(rs) ui.position.left = inst._convertPositionTo("relative", { top: 0, left: r }).left;
			}
			
			var first = (ts || bs || ls || rs);
			
			if(ui.options.snapMode != 'outer') {
				var ts = Math.abs(t - y1) <= d;
				var bs = Math.abs(b - y2) <= d;
				var ls = Math.abs(l - x1) <= d;
				var rs = Math.abs(r - x2) <= d;
				if(ts) ui.position.top = inst._convertPositionTo("relative", { top: t, left: 0 }).top;
				if(bs) ui.position.top = inst._convertPositionTo("relative", { top: b - inst.helperProportions.height, left: 0 }).top;
				if(ls) ui.position.left = inst._convertPositionTo("relative", { top: 0, left: l }).left;
				if(rs) ui.position.left = inst._convertPositionTo("relative", { top: 0, left: r - inst.helperProportions.width }).left;
			}
			
			if(!inst.snapElements[i].snapping && (ts || bs || ls || rs || first))
				(inst.options.snap.snap && inst.options.snap.snap.call(inst.element, null, $.extend(inst.uiHash(), { snapItem: inst.snapElements[i].item })));
			inst.snapElements[i].snapping = (ts || bs || ls || rs || first);
			
		};

	}
});

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

$.widget("ui.droppable", {
	
	_setData: function(key, value) {

		if(key == 'accept') {
			this.options.accept = value && $.isFunction(value) ? value : function(d) {
				return d.is(accept);
			};
		} else {
			$.widget.prototype._setData.apply(this, arguments);
		}

	},
	
	_init: function() {
		
		var o = this.options, accept = o.accept;
		this.isover = 0; this.isout = 1;

		this.options.accept = this.options.accept && $.isFunction(this.options.accept) ? this.options.accept : function(d) {
			return d.is(accept);
		};

		//Store the droppable's proportions
		this.proportions = { width: this.element[0].offsetWidth, height: this.element[0].offsetHeight };
		
		// Add the reference and positions to the manager
		$.ui.ddmanager.droppables[this.options.scope] = $.ui.ddmanager.droppables[this.options.scope] || [];
		$.ui.ddmanager.droppables[this.options.scope].push(this);
		
		(this.options.cssNamespace && this.element.addClass(this.options.cssNamespace+"-droppable"));
		
	},
	plugins: {},
	ui: function(c) {
		return {
			draggable: (c.currentItem || c.element),
			helper: c.helper,
			position: c.position,
			absolutePosition: c.positionAbs,
			options: this.options,
			element: this.element
		};
	},
	destroy: function() {
		var drop = $.ui.ddmanager.droppables[this.options.scope];
		for ( var i = 0; i < drop.length; i++ )
			if ( drop[i] == this )
				drop.splice(i, 1);
		
		this.element
			.removeClass("ui-droppable-disabled")
			.removeData("droppable")
			.unbind(".droppable");
	},
	_over: function(e) {
		
		var draggable = $.ui.ddmanager.current;
		if (!draggable || (draggable.currentItem || draggable.element)[0] == this.element[0]) return; // Bail if draggable and droppable are same element
		
		if (this.options.accept.call(this.element,(draggable.currentItem || draggable.element))) {
			$.ui.plugin.call(this, 'over', [e, this.ui(draggable)]);
			this.element.triggerHandler("dropover", [e, this.ui(draggable)], this.options.over);
		}
		
	},
	_out: function(e) {
		
		var draggable = $.ui.ddmanager.current;
		if (!draggable || (draggable.currentItem || draggable.element)[0] == this.element[0]) return; // Bail if draggable and droppable are same element
		
		if (this.options.accept.call(this.element,(draggable.currentItem || draggable.element))) {
			$.ui.plugin.call(this, 'out', [e, this.ui(draggable)]);
			this.element.triggerHandler("dropout", [e, this.ui(draggable)], this.options.out);
		}
		
	},
	_drop: function(e,custom) {
		
		var draggable = custom || $.ui.ddmanager.current;
		if (!draggable || (draggable.currentItem || draggable.element)[0] == this.element[0]) return false; // Bail if draggable and droppable are same element
		
		var childrenIntersection = false;
		this.element.find(":data(droppable)").not(".ui-draggable-dragging").each(function() {
			var inst = $.data(this, 'droppable');
			if(inst.options.greedy && $.ui.intersect(draggable, $.extend(inst, { offset: inst.element.offset() }), inst.options.tolerance)) {
				childrenIntersection = true; return false;
			}
		});
		if(childrenIntersection) return false;
		
		if(this.options.accept.call(this.element,(draggable.currentItem || draggable.element))) {
			$.ui.plugin.call(this, 'drop', [e, this.ui(draggable)]);
			this.element.triggerHandler("drop", [e, this.ui(draggable)], this.options.drop);
			return this.element;
		}
		
		return false;
		
	},
	_activate: function(e) {
		
		var draggable = $.ui.ddmanager.current;
		$.ui.plugin.call(this, 'activate', [e, this.ui(draggable)]);
		if(draggable) this.element.triggerHandler("dropactivate", [e, this.ui(draggable)], this.options.activate);
		
	},
	_deactivate: function(e) {
		
		var draggable = $.ui.ddmanager.current;
		$.ui.plugin.call(this, 'deactivate', [e, this.ui(draggable)]);
		if(draggable) this.element.triggerHandler("dropdeactivate", [e, this.ui(draggable)], this.options.deactivate);
		
	}
});

$.extend($.ui.droppable, {
	defaults: {
		disabled: false,
		tolerance: 'intersect',
		scope: 'default',
		cssNamespace: 'ui'
	}
});

$.ui.intersect = function(draggable, droppable, toleranceMode) {
	
	if (!droppable.offset) return false;
	
	var x1 = (draggable.positionAbs || draggable.position.absolute).left, x2 = x1 + draggable.helperProportions.width,
		y1 = (draggable.positionAbs || draggable.position.absolute).top, y2 = y1 + draggable.helperProportions.height;
	var l = droppable.offset.left, r = l + droppable.proportions.width,
		t = droppable.offset.top, b = t + droppable.proportions.height;
	
	switch (toleranceMode) {
		case 'fit':
			return (l < x1 && x2 < r
				&& t < y1 && y2 < b);
			break;
		case 'intersect':
			return (l < x1 + (draggable.helperProportions.width / 2) // Right Half
				&& x2 - (draggable.helperProportions.width / 2) < r // Left Half
				&& t < y1 + (draggable.helperProportions.height / 2) // Bottom Half
				&& y2 - (draggable.helperProportions.height / 2) < b ); // Top Half
			break;
		case 'pointer':
			return (l < ((draggable.positionAbs || draggable.position.absolute).left + (draggable.clickOffset || draggable.offset.click).left) && ((draggable.positionAbs || draggable.position.absolute).left + (draggable.clickOffset || draggable.offset.click).left) < r
				&& t < ((draggable.positionAbs || draggable.position.absolute).top + (draggable.clickOffset || draggable.offset.click).top) && ((draggable.positionAbs || draggable.position.absolute).top + (draggable.clickOffset || draggable.offset.click).top) < b);
			break;
		case 'touch':
			return (
					(y1 >= t && y1 <= b) ||	// Top edge touching
					(y2 >= t && y2 <= b) ||	// Bottom edge touching
					(y1 < t && y2 > b)		// Surrounded vertically
				) && (
					(x1 >= l && x1 <= r) ||	// Left edge touching
					(x2 >= l && x2 <= r) ||	// Right edge touching
					(x1 < l && x2 > r)		// Surrounded horizontally
				);
			break;
		default:
			return false;
			break;
		}
	
};

/*
	This manager tracks offsets of draggables and droppables
*/
$.ui.ddmanager = {
	current: null,
	droppables: { 'default': [] },
	prepareOffsets: function(t, e) {
		
		var m = $.ui.ddmanager.droppables[t.options.scope];
		var type = e ? e.type : null; // workaround for #2317
		var list = (t.currentItem || t.element).find(":data(droppable)").andSelf();	

		droppablesLoop: for (var i = 0; i < m.length; i++) {
			
			if(m[i].options.disabled || (t && !m[i].options.accept.call(m[i].element,(t.currentItem || t.element)))) continue;	//No disabled and non-accepted
			for (var j=0; j < list.length; j++) { if(list[j] == m[i].element[0]) { m[i].proportions.height = 0; continue droppablesLoop; } }; //Filter out elements in the current dragged item
			m[i].visible = m[i].element.css("display") != "none"; if(!m[i].visible) continue; 									//If the element is not visible, continue
			
			m[i].offset = m[i].element.offset();
			m[i].proportions = { width: m[i].element[0].offsetWidth, height: m[i].element[0].offsetHeight };
			
			if(type == "dragstart" || type == "sortactivate") m[i]._activate.call(m[i], e); 										//Activate the droppable if used directly from draggables
			
		}
		
	},
	drop: function(draggable, e) {
		
		var dropped = false;
		$.each($.ui.ddmanager.droppables[draggable.options.scope], function() {
			
			if(!this.options) return;
			if (!this.options.disabled && this.visible && $.ui.intersect(draggable, this, this.options.tolerance))
				dropped = this._drop.call(this, e);
			
			if (!this.options.disabled && this.visible && this.options.accept.call(this.element,(draggable.currentItem || draggable.element))) {
				this.isout = 1; this.isover = 0;
				this._deactivate.call(this, e);
			}
			
		});
		return dropped;
		
	},
	drag: function(draggable, e) {
		
		//If you have a highly dynamic page, you might try this option. It renders positions every time you move the mouse.
		if(draggable.options.refreshPositions) $.ui.ddmanager.prepareOffsets(draggable, e);
		
		//Run through all droppables and check their positions based on specific tolerance options

		$.each($.ui.ddmanager.droppables[draggable.options.scope], function() {
			
			if(this.options.disabled || this.greedyChild || !this.visible) return;
			var intersects = $.ui.intersect(draggable, this, this.options.tolerance);
			
			var c = !intersects && this.isover == 1 ? 'isout' : (intersects && this.isover == 0 ? 'isover' : null);
			if(!c) return;
			
			var parentInstance;
			if (this.options.greedy) {
				var parent = this.element.parents(':data(droppable):eq(0)');
				if (parent.length) {
					parentInstance = $.data(parent[0], 'droppable');
					parentInstance.greedyChild = (c == 'isover' ? 1 : 0);
				}
			}
			
			// we just moved into a greedy child
			if (parentInstance && c == 'isover') {
				parentInstance['isover'] = 0;
				parentInstance['isout'] = 1;
				parentInstance._out.call(parentInstance, e);
			}
			
			this[c] = 1; this[c == 'isout' ? 'isover' : 'isout'] = 0;
			this[c == "isover" ? "_over" : "_out"].call(this, e);
			
			// we just moved out of a greedy child
			if (parentInstance && c == 'isout') {
				parentInstance['isout'] = 0;
				parentInstance['isover'] = 1;
				parentInstance._over.call(parentInstance, e);
			}
		});
		
	}
};

/*
 * Droppable Extensions
 */

$.ui.plugin.add("droppable", "activeClass", {
	activate: function(e, ui) {
		$(this).addClass(ui.options.activeClass);
	},
	deactivate: function(e, ui) {
		$(this).removeClass(ui.options.activeClass);
	},
	drop: function(e, ui) {
		$(this).removeClass(ui.options.activeClass);
	}
});

$.ui.plugin.add("droppable", "hoverClass", {
	over: function(e, ui) {
		$(this).addClass(ui.options.hoverClass);
	},
	out: function(e, ui) {
		$(this).removeClass(ui.options.hoverClass);
	},
	drop: function(e, ui) {
		$(this).removeClass(ui.options.hoverClass);
	}
});

})(jQuery);