Adding 2_Maths_countingSheep lesson - still needs some text elements translated

17 files changed, 1347 insertions, 0 deletions

diff --git a/examples/2_Maths_countingSheep/assets/image/bg.png b/examples/2_Maths_countingSheep/assets/image/bg.png
new file mode 100644
index 0000000..6602635
--- /dev/null
+++ b/examples/2_Maths_countingSheep/assets/image/bg.png
diff --git a/examples/2_Maths_countingSheep/assets/image/help.png b/examples/2_Maths_countingSheep/assets/image/help.png
new file mode 100644
index 0000000..f2f4f33
--- /dev/null
+++ b/examples/2_Maths_countingSheep/assets/image/help.png
diff --git a/examples/2_Maths_countingSheep/assets/image/help_text.png b/examples/2_Maths_countingSheep/assets/image/help_text.png
new file mode 100644
index 0000000..72083b1
--- /dev/null
+++ b/examples/2_Maths_countingSheep/assets/image/help_text.png
diff --git a/examples/2_Maths_countingSheep/assets/image/icon.png b/examples/2_Maths_countingSheep/assets/image/icon.png
new file mode 100644
index 0000000..740a558
--- /dev/null
+++ b/examples/2_Maths_countingSheep/assets/image/icon.png
diff --git a/examples/2_Maths_countingSheep/assets/image/rubbish.png b/examples/2_Maths_countingSheep/assets/image/rubbish.png
new file mode 100644
index 0000000..040dbfa
--- /dev/null
+++ b/examples/2_Maths_countingSheep/assets/image/rubbish.png
diff --git a/examples/2_Maths_countingSheep/assets/image/rubbish_open.png b/examples/2_Maths_countingSheep/assets/image/rubbish_open.png
new file mode 100644
index 0000000..f611aea
--- /dev/null
+++ b/examples/2_Maths_countingSheep/assets/image/rubbish_open.png
diff --git a/examples/2_Maths_countingSheep/assets/image/shadow.png b/examples/2_Maths_countingSheep/assets/image/shadow.png
new file mode 100644
index 0000000..b351d43
--- /dev/null
+++ b/examples/2_Maths_countingSheep/assets/image/shadow.png
diff --git a/examples/2_Maths_countingSheep/assets/image/sheep1.png b/examples/2_Maths_countingSheep/assets/image/sheep1.png
new file mode 100644
index 0000000..9b1aa97
--- /dev/null
+++ b/examples/2_Maths_countingSheep/assets/image/sheep1.png
diff --git a/examples/2_Maths_countingSheep/assets/image/sheep2.png b/examples/2_Maths_countingSheep/assets/image/sheep2.png
new file mode 100644
index 0000000..7e738bd
--- /dev/null
+++ b/examples/2_Maths_countingSheep/assets/image/sheep2.png
diff --git a/examples/2_Maths_countingSheep/assets/image/sheep3.png b/examples/2_Maths_countingSheep/assets/image/sheep3.png
new file mode 100644
index 0000000..4290d9d
--- /dev/null
+++ b/examples/2_Maths_countingSheep/assets/image/sheep3.png
diff --git a/examples/2_Maths_countingSheep/assets/image/title.png b/examples/2_Maths_countingSheep/assets/image/title.png
new file mode 100644
index 0000000..90446ed
--- /dev/null
+++ b/examples/2_Maths_countingSheep/assets/image/title.png
diff --git a/examples/2_Maths_countingSheep/css/karma.css b/examples/2_Maths_countingSheep/css/karma.css
new file mode 100644
index 0000000..bce5ee2
--- /dev/null
+++ b/examples/2_Maths_countingSheep/css/karma.css
@@ -0,0 +1,21 @@
+/**
+karma loader 
+**/
+@media screen {
+	#karma-loader{
+		position:fixed;
+		top:0;
+		left:0;
+		padding: 2px 2px 1px 5px;
+		font-family: arial;
+		font-size: 12px;
+		background: #0066cc;
+		color: #ffffff;
+		
+	}
+	#karma-loader.status{
+		
+		left:110px;
+		
+	}
+}
diff --git a/examples/2_Maths_countingSheep/css/lesson.css b/examples/2_Maths_countingSheep/css/lesson.css
new file mode 100644
index 0000000..a997677
--- /dev/null
+++ b/examples/2_Maths_countingSheep/css/lesson.css
@@ -0,0 +1,77 @@
+@CHARSET "UTF-8";
+body{
+	font-family: Verdana, "Geneva CE", lucida, sans-serif;
+}
+
+.panel{
+	background: #efebba;
+	border: 2px solid #efeb3e;
+	padding: 5px 15px 10px;
+}
+
+.titles{
+	text-align: center;
+}
+.titles h1{
+	font-size: 3em;
+}
+.titles h2{
+	font-size: 2em;
+}
+
+#gameArea{
+	position: absolute;
+	width: 1200px;
+	height: 800px;
+	background: url(../assets/image/bg.png) no-repeat;
+	overflow: hidden;
+}
+
+#helpIcon{
+	position:absolute;
+	right:20px;
+	top:20px;
+}
+#helpText{
+	display: none;
+	position:absolute;
+	width: 400px;
+	right:80px;
+	top:20px;
+}
+
+#dropTarget{
+	position:absolute;
+	width:780px;
+	height:380px;
+	left:370px;
+	top:400px;
+/* 	background: #FAA;
+	opacity: 0.4; */
+}
+
+.ui-draggable-dragging{
+	background: url(../assets/image/shadow.png) no-repeat;
+}
+
+#discardTarget{
+	position:absolute;
+	right:10px;
+	bottom:20px;
+}
+
+#option0{
+	position:absolute;
+	left:38px;
+	bottom:20px;
+}
+#option1{
+	position:absolute;
+	left:15px;
+	bottom:125px;
+}
+#option2{
+	position:absolute;
+	left:178px;
+	bottom:20px;
+}
\ No newline at end of file
diff --git a/examples/2_Maths_countingSheep/index.html b/examples/2_Maths_countingSheep/index.html
new file mode 100644
index 0000000..ccea70d
--- /dev/null
+++ b/examples/2_Maths_countingSheep/index.html
@@ -0,0 +1,48 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+	<title>Maths: Counting Sheep</title>
+	<meta name="keywords" content="karma,javascript,html5,sugar,sugarlabs,gsoc,ole,nepal,counting sheep" />
+	<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
+	<link type="image/ico" rel="icon" href="../../assets/default/image/favicon.ico" /> 
+	
+	<link type="text/css" rel="stylesheet" href="../../css/ui.core.css" />
+	<link type="text/css" rel="stylesheet" href="../../css/karma.css" />
+	<link type="text/css" rel="stylesheet" href="css/lesson.css" />
+	
+ 	<script type="text/javascript" src="../../js/jquery-1.3.2.min.js"></script>
+ 	<script type="text/javascript" src="../../js/ui.core.js"></script>
+	<script type="text/javascript" src="../../js/karma.js"></script>
+	<script type="text/javascript" src="js/ui.draggable.js"></script>
+	<script type="text/javascript" src="js/ui.droppable.js"></script>
+	<script type="text/javascript" src="js/lesson.js"></script>
+	
+</head>
+<body>
+	<div id="gameArea">
+		<div class="titles">
+			<h2>Translate: Put sheep in the barn and count them</h2> 
+			<h1 id="total"></h2>
+		</div>
+		
+		<div id="sourceObjects">
+			<img id="option0" src="assets/image/sheep1.png" alt=""/>
+			<img id="option1" src="assets/image/sheep2.png" alt=""/>
+			<img id="option2" src="assets/image/sheep3.png" alt=""/>
+		</div>
+		
+		<img id="discardTarget" src="assets/image/rubbish.png" alt=""/>
+		
+		<div id="dropTarget"></div>
+		<div id="clonedObjects"></div>
+		
+		<img id="helpIcon" src="assets/image/help.png" alt=""/>
+		<div id="helpText" class="panel">
+			<h3>Title:</h3>
+			<p>Here is the title...</p>
+			<h3>Objective:</h3>
+			<p>Here is the objective...</p>
+		</div>
+ 	 </div>	
+</body>
+</html>
diff --git a/examples/2_Maths_countingSheep/js/lesson.js b/examples/2_Maths_countingSheep/js/lesson.js
new file mode 100644
index 0000000..0b3a58a
--- /dev/null
+++ b/examples/2_Maths_countingSheep/js/lesson.js
@@ -0,0 +1,153 @@
+$(document).ready(function(){
+	var k = Karma({
+		image: [
+			{'name':'sheep1','file':'sheep1.png'},
+			{'name':'sheep2','file':'sheep2.png'},
+			{'name':'sheep3','file':'sheep3.png'},
+			{'name':'rubbish','file':'rubbish.png'},
+			{'name':'rubbish_open','file':'rubbish_open.png'}
+		]
+	});
+
+	
+	k.ready(function(){
+
+		var originalObjects = [
+			{id: "option0", count: 1},
+			{id: "option1", count: 2},
+			{id: "option2", count: 3}
+		];
+		
+		// add all listeners
+		init_game();
+		
+		// start the game
+		game_start(); 
+		
+		function init_game(){
+			// add listeners for drag and drop
+			
+			// make sure all the original objects can be dragged and cloned
+			for ( var i=0; i < originalObjects.length; i++ ){
+				$( "#" + originalObjects[i].id ).draggable({
+					helper: function(){
+						var c = $(this).clone();
+						c.attr('originalId', $(this).attr('id') );
+						return c;
+					},
+					//containment: '#gameArea',
+					appendTo: '#clonedObjects',
+					distance: 10,
+					start: function(){
+						bring_to_front(this);
+					},
+					stop:
+						function(ev, ui) {
+							// on drop, need to make a persistant clone of the helper
+							// unless we dropped on the rubbish bin of course
+							if (ui.helper.is(":visible")){
+								var helper = ui.helper.clone().draggable({
+									//containment: '#gameArea',
+									start: function(){
+										bring_to_front(this);
+									}
+								});
+								helper.appendTo('#clonedObjects');
+							}
+						}
+				});
+			}
+			
+			// add handler to update score whenever items are moved
+			$("#gameArea").droppable({
+				activate: function(event, ui) {
+					update_score();
+				},
+				drop: function(event, ui) {
+					update_score();
+				}
+			});
+			
+			// and to remove items when dropped in the rubbish bin
+			$("#discardTarget").droppable({
+				tolerance: 'intersect',
+				over: function(event, ui) {
+					ui.helper.hide();
+					$("#discardTarget").attr('src', Karma.image['rubbish_open'].media.src);
+				},
+				out: function(event, ui) {
+					ui.helper.show();
+					$("#discardTarget").attr('src', Karma.image['rubbish'].media.src);
+				},
+				drop: function(event, ui) {
+					// delete the helper from the DOM, after removing all listeners
+					ui.helper.unbind();
+					ui.helper.remove();
+					$("#discardTarget").attr('src', Karma.image['rubbish'].media.src);
+				}
+			});
+			
+			// show the help text
+			$("#helpIcon").hover(
+				function(){ $("#helpText").show(); },
+				function(){ $("#helpText").hide(); }
+			);
+		}
+		
+		function game_start(){
+			// restart the game
+			
+			// remove all cloned objects
+			$("#clonedObjects").children().each(function(){
+				$(this).unbind();
+				$(this).remove();
+			});
+			
+			update_score();
+		}
+
+		function update_score(){
+			var total = 0;
+			
+			// sum the number of sheep that are over the dropTarget
+			$('#clonedObjects').children().each(function(){
+				if ( bounds_within($(this), $("#dropTarget")) ){
+					var oId = $(this).attr('originalId');
+					for ( var i=0; i < originalObjects.length; i++ ){
+						if ( originalObjects[i].id == oId ){
+							total += originalObjects[i].count;
+							break;
+						}
+					}
+				}
+			});
+		
+			$("#total").html( Karma.convertNumToLocale(total, 'ne') );
+		}
+
+		
+		// helper functions
+		
+		function bring_to_front( el ){
+			// ensure that the zIndex of the passed element / selector is on top of all siblings
+			var zmax = 0;
+			$(el).siblings().each(function() {
+				var cur = parseInt( $(this).css('zIndex') );
+				zmax = cur > zmax ? cur : zmax;
+			});
+			$(el).css( 'zIndex', (zmax+1) );
+		}
+		
+		function bounds_within( el1, el2 ){
+			if ( el1.offset().left > el2.offset().left && 
+				el1.offset().top > el2.offset().top &&
+				(el1.offset().left + el1.width()) < (el2.offset().left + el2.width()) &&
+				(el1.offset().top + el1.height()) < (el2.offset().top + el2.height()) ){
+			
+				return true;
+			}
+			return false;
+		}
+
+	});	    
+});
\ No newline at end of file
diff --git a/examples/2_Maths_countingSheep/js/ui.draggable.js b/examples/2_Maths_countingSheep/js/ui.draggable.js
new file mode 100644
index 0000000..0402f0e
--- /dev/null
+++ b/examples/2_Maths_countingSheep/js/ui.draggable.js
@@ -0,0 +1,766 @@
+/*
+ * jQuery UI Draggable 1.7.2
+ *
+ * Copyright (c) 2009 AUTHORS.txt (http://jqueryui.com/about)
+ * Dual licensed under the MIT (MIT-LICENSE.txt)
+ * and GPL (GPL-LICENSE.txt) licenses.
+ *
+ * http://docs.jquery.com/UI/Draggables
+ *
+ * Depends:
+ *	ui.core.js
+ */
+(function($) {
+
+$.widget("ui.draggable", $.extend({}, $.ui.mouse, {
+
+	_init: function() {
+
+		if (this.options.helper == 'original' && !(/^(?:r|a|f)/).test(this.element.css("position")))
+			this.element[0].style.position = 'relative';
+
+		(this.options.addClasses && this.element.addClass("ui-draggable"));
+		(this.options.disabled && this.element.addClass("ui-draggable-disabled"));
+
+		this._mouseInit();
+
+	},
+
+	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();
+	},
+
+	_mouseCapture: function(event) {
+
+		var o = this.options;
+
+		if (this.helper || o.disabled || $(event.target).is('.ui-resizable-handle'))
+			return false;
+
+		//Quit if we're not on a valid handle
+		this.handle = this._getHandle(event);
+		if (!this.handle)
+			return false;
+
+		return true;
+
+	},
+
+	_mouseStart: function(event) {
+
+		var o = this.options;
+
+		//Create and append the visible helper
+		this.helper = this._createHelper(event);
+
+		//Cache the helper size
+		this._cacheHelperProportions();
+
+		//If ddmanager is used for droppables, set the global draggable
+		if($.ui.ddmanager)
+			$.ui.ddmanager.current = this;
+
+		/*
+		 * - Position generation -
+		 * This block generates everything position related - it's the core of draggables.
+		 */
+
+		//Cache the margins of the original element
+		this._cacheMargins();
+
+		//Store the helper's css position
+		this.cssPosition = this.helper.css("position");
+		this.scrollParent = this.helper.scrollParent();
+
+		//The element's absolute position on the page minus margins
+		this.offset = this.element.offset();
+		this.offset = {
+			top: this.offset.top - this.margins.top,
+			left: this.offset.left - this.margins.left
+		};
+
+		$.extend(this.offset, {
+			click: { //Where the click happened, relative to the element
+				left: event.pageX - this.offset.left,
+				top: event.pageY - this.offset.top
+			},
+			parent: this._getParentOffset(),
+			relative: this._getRelativeOffset() //This is a relative to absolute position minus the actual position calculation - only used for relative positioned helper
+		});
+
+		//Generate the original position
+		this.originalPosition = this._generatePosition(event);
+		this.originalPageX = event.pageX;
+		this.originalPageY = event.pageY;
+
+		//Adjust the mouse offset relative to the helper if 'cursorAt' is supplied
+		if(o.cursorAt)
+			this._adjustOffsetFromHelper(o.cursorAt);
+
+		//Set a containment if given in the options
+		if(o.containment)
+			this._setContainment();
+
+		//Call plugins and callbacks
+		this._trigger("start", event);
+
+		//Recache the helper size
+		this._cacheHelperProportions();
+
+		//Prepare the droppable offsets
+		if ($.ui.ddmanager && !o.dropBehaviour)
+			$.ui.ddmanager.prepareOffsets(this, event);
+
+		this.helper.addClass("ui-draggable-dragging");
+		this._mouseDrag(event, true); //Execute the drag once - this causes the helper not to be visible before getting its correct position
+		return true;
+	},
+
+	_mouseDrag: function(event, noPropagation) {
+
+		//Compute the helpers position
+		this.position = this._generatePosition(event);
+		this.positionAbs = this._convertPositionTo("absolute");
+
+		//Call plugins and callbacks and use the resulting position if something is returned
+		if (!noPropagation) {
+			var ui = this._uiHash();
+			this._trigger('drag', event, ui);
+			this.position = ui.position;
+		}
+
+		if(!this.options.axis || this.options.axis != "y") this.helper[0].style.left = this.position.left+'px';
+		if(!this.options.axis || this.options.axis != "x") this.helper[0].style.top = this.position.top+'px';
+		if($.ui.ddmanager) $.ui.ddmanager.drag(this, event);
+
+		return false;
+	},
+
+	_mouseStop: function(event) {
+
+		//If we are using droppables, inform the manager about the drop
+		var dropped = false;
+		if ($.ui.ddmanager && !this.options.dropBehaviour)
+			dropped = $.ui.ddmanager.drop(this, event);
+
+		//if a drop comes from outside (a sortable)
+		if(this.dropped) {
+			dropped = this.dropped;
+			this.dropped = false;
+		}
+
+		if((this.options.revert == "invalid" && !dropped) || (this.options.revert == "valid" && dropped) || this.options.revert === true || ($.isFunction(this.options.revert) && this.options.revert.call(this.element, dropped))) {
+			var self = this;
+			$(this.helper).animate(this.originalPosition, parseInt(this.options.revertDuration, 10), function() {
+				self._trigger("stop", event);
+				self._clear();
+			});
+		} else {
+			this._trigger("stop", event);
+			this._clear();
+		}
+
+		return false;
+	},
+
+	_getHandle: function(event) {
+
+		var handle = !this.options.handle || !$(this.options.handle, this.element).length ? true : false;
+		$(this.options.handle, this.element)
+			.find("*")
+			.andSelf()
+			.each(function() {
+				if(this == event.target) handle = true;
+			});
+
+		return handle;
+
+	},
+
+	_createHelper: function(event) {
+
+		var o = this.options;
+		var helper = $.isFunction(o.helper) ? $(o.helper.apply(this.element[0], [event])) : (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;
+
+	},
+
+	_adjustOffsetFromHelper: function(obj) {
+		if(obj.left != undefined) this.offset.click.left = obj.left + this.margins.left;
+		if(obj.right != undefined) this.offset.click.left = this.helperProportions.width - obj.right + this.margins.left;
+		if(obj.top != undefined) this.offset.click.top = obj.top + this.margins.top;
+		if(obj.bottom != undefined) this.offset.click.top = this.helperProportions.height - obj.bottom + this.margins.top;
+	},
+
+	_getParentOffset: function() {
+
+		//Get the offsetParent and cache its position
+		this.offsetParent = this.helper.offsetParent();
+		var po = this.offsetParent.offset();
+
+		// This is a special case where we need to modify a offset calculated on start, since the following happened:
+		// 1. The position of the helper is absolute, so it's position is calculated based on the next positioned parent
+		// 2. The actual offset parent is a child of the scroll parent, and the scroll parent isn't the document, which means that
+		//    the scroll is included in the initial calculation of the offset of the parent, and never recalculated upon drag
+		if(this.cssPosition == 'absolute' && this.scrollParent[0] != document && $.ui.contains(this.scrollParent[0], this.offsetParent[0])) {
+			po.left += this.scrollParent.scrollLeft();
+			po.top += this.scrollParent.scrollTop();
+		}
+
+		if((this.offsetParent[0] == document.body) //This needs to be actually done for all browsers, since pageX/pageY includes this information
+		|| (this.offsetParent[0].tagName && this.offsetParent[0].tagName.toLowerCase() == 'html' && $.browser.msie)) //Ugly IE fix
+			po = { top: 0, left: 0 };
+
+		return {
+			top: po.top + (parseInt(this.offsetParent.css("borderTopWidth"),10) || 0),
+			left: po.left + (parseInt(this.offsetParent.css("borderLeftWidth"),10) || 0)
+		};
+
+	},
+
+	_getRelativeOffset: function() {
+
+		if(this.cssPosition == "relative") {
+			var p = this.element.position();
+			return {
+				top: p.top - (parseInt(this.helper.css("top"),10) || 0) + this.scrollParent.scrollTop(),
+				left: p.left - (parseInt(this.helper.css("left"),10) || 0) + this.scrollParent.scrollLeft()
+			};
+		} else {
+			return { top: 0, left: 0 };
+		}
+
+	},
+
+	_cacheMargins: function() {
+		this.margins = {
+			left: (parseInt(this.element.css("marginLeft"),10) || 0),
+			top: (parseInt(this.element.css("marginTop"),10) || 0)
+		};
+	},
+
+	_cacheHelperProportions: function() {
+		this.helperProportions = {
+			width: this.helper.outerWidth(),
+			height: this.helper.outerHeight()
+		};
+	},
+
+	_setContainment: function() {
+
+		var o = this.options;
+		if(o.containment == 'parent') o.containment = this.helper[0].parentNode;
+		if(o.containment == 'document' || o.containment == 'window') this.containment = [
+			0 - this.offset.relative.left - this.offset.parent.left,
+			0 - this.offset.relative.top - this.offset.parent.top,
+			$(o.containment == 'document' ? document : window).width() - this.helperProportions.width - this.margins.left,
+			($(o.containment == 'document' ? document : window).height() || document.body.parentNode.scrollHeight) - this.helperProportions.height - this.margins.top
+		];
+
+		if(!(/^(document|window|parent)$/).test(o.containment) && o.containment.constructor != Array) {
+			var ce = $(o.containment)[0]; if(!ce) return;
+			var co = $(o.containment).offset();
+			var over = ($(ce).css("overflow") != 'hidden');
+
+			this.containment = [
+				co.left + (parseInt($(ce).css("borderLeftWidth"),10) || 0) + (parseInt($(ce).css("paddingLeft"),10) || 0) - this.margins.left,
+				co.top + (parseInt($(ce).css("borderTopWidth"),10) || 0) + (parseInt($(ce).css("paddingTop"),10) || 0) - this.margins.top,
+				co.left+(over ? Math.max(ce.scrollWidth,ce.offsetWidth) : ce.offsetWidth) - (parseInt($(ce).css("borderLeftWidth"),10) || 0) - (parseInt($(ce).css("paddingRight"),10) || 0) - this.helperProportions.width - this.margins.left,
+				co.top+(over ? Math.max(ce.scrollHeight,ce.offsetHeight) : ce.offsetHeight) - (parseInt($(ce).css("borderTopWidth"),10) || 0) - (parseInt($(ce).css("paddingBottom"),10) || 0) - this.helperProportions.height - this.margins.top
+			];
+		} else if(o.containment.constructor == Array) {
+			this.containment = o.containment;
+		}
+
+	},
+
+	_convertPositionTo: function(d, pos) {
+
+		if(!pos) pos = this.position;
+		var mod = d == "absolute" ? 1 : -1;
+		var o = this.options, scroll = this.cssPosition == 'absolute' && !(this.scrollParent[0] != document && $.ui.contains(this.scrollParent[0], this.offsetParent[0])) ? this.offsetParent : this.scrollParent, scrollIsRootNode = (/(html|body)/i).test(scroll[0].tagName);
+
+		return {
+			top: (
+				pos.top																	// The absolute mouse position
+				+ this.offset.relative.top * mod										// Only for relative positioned nodes: Relative offset from element to offset parent
+				+ this.offset.parent.top * mod											// The offsetParent's offset without borders (offset + border)
+				- ($.browser.safari && this.cssPosition == 'fixed' ? 0 : ( this.cssPosition == 'fixed' ? -this.scrollParent.scrollTop() : ( scrollIsRootNode ? 0 : scroll.scrollTop() ) ) * mod)
+			),
+			left: (
+				pos.left																// The absolute mouse position
+				+ this.offset.relative.left * mod										// Only for relative positioned nodes: Relative offset from element to offset parent
+				+ this.offset.parent.left * mod											// The offsetParent's offset without borders (offset + border)
+				- ($.browser.safari && this.cssPosition == 'fixed' ? 0 : ( this.cssPosition == 'fixed' ? -this.scrollParent.scrollLeft() : scrollIsRootNode ? 0 : scroll.scrollLeft() ) * mod)
+			)
+		};
+
+	},
+
+	_generatePosition: function(event) {
+
+		var o = this.options, scroll = this.cssPosition == 'absolute' && !(this.scrollParent[0] != document && $.ui.contains(this.scrollParent[0], this.offsetParent[0])) ? this.offsetParent : this.scrollParent, scrollIsRootNode = (/(html|body)/i).test(scroll[0].tagName);
+
+		// This is another very weird special case that only happens for relative elements:
+		// 1. If the css position is relative
+		// 2. and the scroll parent is the document or similar to the offset parent
+		// we have to refresh the relative offset during the scroll so there are no jumps
+		if(this.cssPosition == 'relative' && !(this.scrollParent[0] != document && this.scrollParent[0] != this.offsetParent[0])) {
+			this.offset.relative = this._getRelativeOffset();
+		}
+
+		var pageX = event.pageX;
+		var pageY = event.pageY;
+
+		/*
+		 * - Position constraining -
+		 * Constrain the position to a mix of grid, containment.
+		 */
+
+		if(this.originalPosition) { //If we are not dragging yet, we won't check for options
+
+			if(this.containment) {
+				if(event.pageX - this.offset.click.left < this.containment[0]) pageX = this.containment[0] + this.offset.click.left;
+				if(event.pageY - this.offset.click.top < this.containment[1]) pageY = this.containment[1] + this.offset.click.top;
+				if(event.pageX - this.offset.click.left > this.containment[2]) pageX = this.containment[2] + this.offset.click.left;
+				if(event.pageY - this.offset.click.top > this.containment[3]) pageY = this.containment[3] + this.offset.click.top;
+			}
+
+			if(o.grid) {
+				var top = this.originalPageY + Math.round((pageY - this.originalPageY) / o.grid[1]) * o.grid[1];
+				pageY = this.containment ? (!(top - this.offset.click.top < this.containment[1] || top - this.offset.click.top > this.containment[3]) ? top : (!(top - this.offset.click.top < this.containment[1]) ? top - o.grid[1] : top + o.grid[1])) : top;
+
+				var left = this.originalPageX + Math.round((pageX - this.originalPageX) / o.grid[0]) * o.grid[0];
+				pageX = this.containment ? (!(left - this.offset.click.left < this.containment[0] || left - this.offset.click.left > this.containment[2]) ? left : (!(left - this.offset.click.left < this.containment[0]) ? left - o.grid[0] : left + o.grid[0])) : left;
+			}
+
+		}
+
+		return {
+			top: (
+				pageY																// The absolute mouse position
+				- this.offset.click.top													// Click offset (relative to the element)
+				- this.offset.relative.top												// Only for relative positioned nodes: Relative offset from element to offset parent
+				- this.offset.parent.top												// The offsetParent's offset without borders (offset + border)
+				+ ($.browser.safari && this.cssPosition == 'fixed' ? 0 : ( this.cssPosition == 'fixed' ? -this.scrollParent.scrollTop() : ( scrollIsRootNode ? 0 : scroll.scrollTop() ) ))
+			),
+			left: (
+				pageX																// The absolute mouse position
+				- this.offset.click.left												// Click offset (relative to the element)
+				- this.offset.relative.left												// Only for relative positioned nodes: Relative offset from element to offset parent
+				- this.offset.parent.left												// The offsetParent's offset without borders (offset + border)
+				+ ($.browser.safari && this.cssPosition == 'fixed' ? 0 : ( this.cssPosition == 'fixed' ? -this.scrollParent.scrollLeft() : scrollIsRootNode ? 0 : scroll.scrollLeft() ))
+			)
+		};
+
+	},
+
+	_clear: function() {
+		this.helper.removeClass("ui-draggable-dragging");
+		if(this.helper[0] != this.element[0] && !this.cancelHelperRemoval) this.helper.remove();
+		//if($.ui.ddmanager) $.ui.ddmanager.current = null;
+		this.helper = null;
+		this.cancelHelperRemoval = false;
+	},
+
+	// From now on bulk stuff - mainly helpers
+
+	_trigger: function(type, event, ui) {
+		ui = ui || this._uiHash();
+		$.ui.plugin.call(this, type, [event, ui]);
+		if(type == "drag") this.positionAbs = this._convertPositionTo("absolute"); //The absolute position has to be recalculated after plugins
+		return $.widget.prototype._trigger.call(this, type, event, ui);
+	},
+
+	plugins: {},
+
+	_uiHash: function(event) {
+		return {
+			helper: this.helper,
+			position: this.position,
+			absolutePosition: this.positionAbs, //deprecated
+			offset: this.positionAbs
+		};
+	}
+
+}));
+
+$.extend($.ui.draggable, {
+	version: "1.7.2",
+	eventPrefix: "drag",
+	defaults: {
+		addClasses: true,
+		appendTo: "parent",
+		axis: false,
+		cancel: ":input,option",
+		connectToSortable: false,
+		containment: false,
+		cursor: "auto",
+		cursorAt: false,
+		delay: 0,
+		distance: 1,
+		grid: false,
+		handle: false,
+		helper: "original",
+		iframeFix: false,
+		opacity: false,
+		refreshPositions: false,
+		revert: false,
+		revertDuration: 500,
+		scope: "default",
+		scroll: true,
+		scrollSensitivity: 20,
+		scrollSpeed: 20,
+		snap: false,
+		snapMode: "both",
+		snapTolerance: 20,
+		stack: false,
+		zIndex: false
+	}
+});
+
+$.ui.plugin.add("draggable", "connectToSortable", {
+	start: function(event, ui) {
+
+		var inst = $(this).data("draggable"), o = inst.options,
+			uiSortable = $.extend({}, ui, { item: inst.element });
+		inst.sortables = [];
+		$(o.connectToSortable).each(function() {
+			var sortable = $.data(this, 'sortable');
+			if (sortable && !sortable.options.disabled) {
+				inst.sortables.push({
+					instance: sortable,
+					shouldRevert: sortable.options.revert
+				});
+				sortable._refreshItems();	//Do a one-time refresh at start to refresh the containerCache
+				sortable._trigger("activate", event, uiSortable);
+			}
+		});
+
+	},
+	stop: function(event, 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"),
+			uiSortable = $.extend({}, ui, { item: inst.element });
+
+		$.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)
+
+				//The sortable revert is supported, and we have to set a temporary dropped variable on the draggable to support revert: 'valid/invalid'
+				if(this.shouldRevert) this.instance.options.revert = true;
+
+				//Trigger the stop of the sortable
+				this.instance._mouseStop(event);
+
+				this.instance.options.helper = this.instance.options._helper;
+
+				//If the helper has been the original item, restore properties in the sortable
+				if(inst.options.helper == 'original')
+					this.instance.currentItem.css({ top: 'auto', left: 'auto' });
+
+			} else {
+				this.instance.cancelHelperRemoval = false; //Remove the helper in the sortable instance
+				this.instance._trigger("deactivate", event, uiSortable);
+			}
+
+		});
+
+	},
+	drag: function(event, ui) {
+
+		var inst = $(this).data("draggable"), self = this;
+
+		var checkPos = function(o) {
+			var dyClick = this.offset.click.top, dxClick = this.offset.click.left;
+			var helperTop = this.positionAbs.top, helperLeft = this.positionAbs.left;
+			var itemHeight = o.height, itemWidth = o.width;
+			var itemTop = o.top, itemLeft = o.left;
+
+			return $.ui.isOver(helperTop + dyClick, helperLeft + dxClick, itemTop, itemLeft, itemHeight, itemWidth);
+		};
+
+		$.each(inst.sortables, function(i) {
+			
+			//Copy over some variables to allow calling the sortable's native _intersectsWith
+			this.instance.positionAbs = inst.positionAbs;
+			this.instance.helperProportions = inst.helperProportions;
+			this.instance.offset.click = inst.offset.click;
+			
+			if(this.instance._intersectsWith(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]; };
+
+					event.target = this.instance.currentItem[0];
+					this.instance._mouseCapture(event, true);
+					this.instance._mouseStart(event, 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._trigger("toSortable", event);
+					inst.dropped = this.instance.element; //draggable revert needs that
+					//hack so receive/update callbacks work (mostly)
+					inst.currentItem = inst.element;
+					this.instance.fromOutside = inst;
+
+				}
+
+				//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(event);
+
+			} 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;
+					
+					//Prevent reverting on this forced stop
+					this.instance.options.revert = false;
+					
+					// The out event needs to be triggered independently
+					this.instance._trigger('out', event, this.instance._uiHash(this.instance));
+					
+					this.instance._mouseStop(event, 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._trigger("fromSortable", event);
+					inst.dropped = false; //draggable revert needs that
+				}
+
+			};
+
+		});
+
+	}
+});
+
+$.ui.plugin.add("draggable", "cursor", {
+	start: function(event, ui) {
+		var t = $('body'), o = $(this).data('draggable').options;
+		if (t.css("cursor")) o._cursor = t.css("cursor");
+		t.css("cursor", o.cursor);
+	},
+	stop: function(event, ui) {
+		var o = $(this).data('draggable').options;
+		if (o._cursor) $('body').css("cursor", o._cursor);
+	}
+});
+
+$.ui.plugin.add("draggable", "iframeFix", {
+	start: function(event, ui) {
+		var o = $(this).data('draggable').options;
+		$(o.iframeFix === true ? "iframe" : o.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(event, ui) {
+		$("div.ui-draggable-iframeFix").each(function() { this.parentNode.removeChild(this); }); //Remove frame helpers
+	}
+});
+
+$.ui.plugin.add("draggable", "opacity", {
+	start: function(event, ui) {
+		var t = $(ui.helper), o = $(this).data('draggable').options;
+		if(t.css("opacity")) o._opacity = t.css("opacity");
+		t.css('opacity', o.opacity);
+	},
+	stop: function(event, ui) {
+		var o = $(this).data('draggable').options;
+		if(o._opacity) $(ui.helper).css('opacity', o._opacity);
+	}
+});
+
+$.ui.plugin.add("draggable", "scroll", {
+	start: function(event, ui) {
+		var i = $(this).data("draggable");
+		if(i.scrollParent[0] != document && i.scrollParent[0].tagName != 'HTML') i.overflowOffset = i.scrollParent.offset();
+	},
+	drag: function(event, ui) {
+
+		var i = $(this).data("draggable"), o = i.options, scrolled = false;
+
+		if(i.scrollParent[0] != document && i.scrollParent[0].tagName != 'HTML') {
+
+			if(!o.axis || o.axis != 'x') {
+				if((i.overflowOffset.top + i.scrollParent[0].offsetHeight) - event.pageY < o.scrollSensitivity)
+					i.scrollParent[0].scrollTop = scrolled = i.scrollParent[0].scrollTop + o.scrollSpeed;
+				else if(event.pageY - i.overflowOffset.top < o.scrollSensitivity)
+					i.scrollParent[0].scrollTop = scrolled = i.scrollParent[0].scrollTop - o.scrollSpeed;
+			}
+
+			if(!o.axis || o.axis != 'y') {
+				if((i.overflowOffset.left + i.scrollParent[0].offsetWidth) - event.pageX < o.scrollSensitivity)
+					i.scrollParent[0].scrollLeft = scrolled = i.scrollParent[0].scrollLeft + o.scrollSpeed;
+				else if(event.pageX - i.overflowOffset.left < o.scrollSensitivity)
+					i.scrollParent[0].scrollLeft = scrolled = i.scrollParent[0].scrollLeft - o.scrollSpeed;
+			}
+
+		} else {
+
+			if(!o.axis || o.axis != 'x') {
+				if(event.pageY - $(document).scrollTop() < o.scrollSensitivity)
+					scrolled = $(document).scrollTop($(document).scrollTop() - o.scrollSpeed);
+				else if($(window).height() - (event.pageY - $(document).scrollTop()) < o.scrollSensitivity)
+					scrolled = $(document).scrollTop($(document).scrollTop() + o.scrollSpeed);
+			}
+
+			if(!o.axis || o.axis != 'y') {
+				if(event.pageX - $(document).scrollLeft() < o.scrollSensitivity)
+					scrolled = $(document).scrollLeft($(document).scrollLeft() - o.scrollSpeed);
+				else if($(window).width() - (event.pageX - $(document).scrollLeft()) < o.scrollSensitivity)
+					scrolled = $(document).scrollLeft($(document).scrollLeft() + o.scrollSpeed);
+			}
+
+		}
+
+		if(scrolled !== false && $.ui.ddmanager && !o.dropBehaviour)
+			$.ui.ddmanager.prepareOffsets(i, event);
+
+	}
+});
+
+$.ui.plugin.add("draggable", "snap", {
+	start: function(event, ui) {
+
+		var i = $(this).data("draggable"), o = i.options;
+		i.snapElements = [];
+
+		$(o.snap.constructor != String ? ( o.snap.items || ':data(draggable)' ) : o.snap).each(function() {
+			var $t = $(this); var $o = $t.offset();
+			if(this != i.element[0]) i.snapElements.push({
+				item: this,
+				width: $t.outerWidth(), height: $t.outerHeight(),
+				top: $o.top, left: $o.left
+			});
+		});
+
+	},
+	drag: function(event, ui) {
+
+		var inst = $(this).data("draggable"), o = inst.options;
+		var d = o.snapTolerance;
+
+		var x1 = ui.offset.left, x2 = x1 + inst.helperProportions.width,
+			y1 = ui.offset.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, event, $.extend(inst._uiHash(), { snapItem: inst.snapElements[i].item })));
+				inst.snapElements[i].snapping = false;
+				continue;
+			}
+
+			if(o.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 - inst.margins.top;
+				if(bs) ui.position.top = inst._convertPositionTo("relative", { top: b, left: 0 }).top - inst.margins.top;
+				if(ls) ui.position.left = inst._convertPositionTo("relative", { top: 0, left: l - inst.helperProportions.width }).left - inst.margins.left;
+				if(rs) ui.position.left = inst._convertPositionTo("relative", { top: 0, left: r }).left - inst.margins.left;
+			}
+
+			var first = (ts || bs || ls || rs);
+
+			if(o.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 - inst.margins.top;
+				if(bs) ui.position.top = inst._convertPositionTo("relative", { top: b - inst.helperProportions.height, left: 0 }).top - inst.margins.top;
+				if(ls) ui.position.left = inst._convertPositionTo("relative", { top: 0, left: l }).left - inst.margins.left;
+				if(rs) ui.position.left = inst._convertPositionTo("relative", { top: 0, left: r - inst.helperProportions.width }).left - inst.margins.left;
+			}
+
+			if(!inst.snapElements[i].snapping && (ts || bs || ls || rs || first))
+				(inst.options.snap.snap && inst.options.snap.snap.call(inst.element, event, $.extend(inst._uiHash(), { snapItem: inst.snapElements[i].item })));
+			inst.snapElements[i].snapping = (ts || bs || ls || rs || first);
+
+		};
+
+	}
+});
+
+$.ui.plugin.add("draggable", "stack", {
+	start: function(event, ui) {
+
+		var o = $(this).data("draggable").options;
+
+		var group = $.makeArray($(o.stack.group)).sort(function(a,b) {
+			return (parseInt($(a).css("zIndex"),10) || o.stack.min) - (parseInt($(b).css("zIndex"),10) || o.stack.min);
+		});
+
+		$(group).each(function(i) {
+			this.style.zIndex = o.stack.min + i;
+		});
+
+		this[0].style.zIndex = o.stack.min + group.length;
+
+	}
+});
+
+$.ui.plugin.add("draggable", "zIndex", {
+	start: function(event, ui) {
+		var t = $(ui.helper), o = $(this).data("draggable").options;
+		if(t.css("zIndex")) o._zIndex = t.css("zIndex");
+		t.css('zIndex', o.zIndex);
+	},
+	stop: function(event, ui) {
+		var o = $(this).data("draggable").options;
+		if(o._zIndex) $(ui.helper).css('zIndex', o._zIndex);
+	}
+});
+
+})(jQuery);
diff --git a/examples/2_Maths_countingSheep/js/ui.droppable.js b/examples/2_Maths_countingSheep/js/ui.droppable.js
new file mode 100644
index 0000000..8e7be33
--- /dev/null
+++ b/examples/2_Maths_countingSheep/js/ui.droppable.js
@@ -0,0 +1,282 @@
+/*
+ * jQuery UI Droppable 1.7.2
+ *
+ * Copyright (c) 2009 AUTHORS.txt (http://jqueryui.com/about)
+ * Dual licensed under the MIT (MIT-LICENSE.txt)
+ * and GPL (GPL-LICENSE.txt) licenses.
+ *
+ * http://docs.jquery.com/UI/Droppables
+ *
+ * Depends:
+ *	ui.core.js
+ *	ui.draggable.js
+ */
+(function($) {
+
+$.widget("ui.droppable", {
+
+	_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.addClasses && this.element.addClass("ui-droppable"));
+
+	},
+
+	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 ui-droppable-disabled")
+			.removeData("droppable")
+			.unbind(".droppable");
+	},
+
+	_setData: function(key, value) {
+
+		if(key == 'accept') {
+			this.options.accept = value && $.isFunction(value) ? value : function(d) {
+				return d.is(value);
+			};
+		} else {
+			$.widget.prototype._setData.apply(this, arguments);
+		}
+
+	},
+
+	_activate: function(event) {
+		var draggable = $.ui.ddmanager.current;
+		if(this.options.activeClass) this.element.addClass(this.options.activeClass);
+		(draggable && this._trigger('activate', event, this.ui(draggable)));
+	},
+
+	_deactivate: function(event) {
+		var draggable = $.ui.ddmanager.current;
+		if(this.options.activeClass) this.element.removeClass(this.options.activeClass);
+		(draggable && this._trigger('deactivate', event, this.ui(draggable)));
+	},
+
+	_over: function(event) {
+
+		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[0],(draggable.currentItem || draggable.element))) {
+			if(this.options.hoverClass) this.element.addClass(this.options.hoverClass);
+			this._trigger('over', event, this.ui(draggable));
+		}
+
+	},
+
+	_out: function(event) {
+
+		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[0],(draggable.currentItem || draggable.element))) {
+			if(this.options.hoverClass) this.element.removeClass(this.options.hoverClass);
+			this._trigger('out', event, this.ui(draggable));
+		}
+
+	},
+
+	_drop: function(event,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, $.extend(inst, { offset: inst.element.offset() }), inst.options.tolerance)) {
+				childrenIntersection = true; return false;
+			}
+		});
+		if(childrenIntersection) return false;
+
+		if(this.options.accept.call(this.element[0],(draggable.currentItem || draggable.element))) {
+			if(this.options.activeClass) this.element.removeClass(this.options.activeClass);
+			if(this.options.hoverClass) this.element.removeClass(this.options.hoverClass);
+			this._trigger('drop', event, this.ui(draggable));
+			return this.element;
+		}
+
+		return false;
+
+	},
+
+	ui: function(c) {
+		return {
+			draggable: (c.currentItem || c.element),
+			helper: c.helper,
+			position: c.position,
+			absolutePosition: c.positionAbs, //deprecated
+			offset: c.positionAbs
+		};
+	}
+
+});
+
+$.extend($.ui.droppable, {
+	version: "1.7.2",
+	eventPrefix: 'drop',
+	defaults: {
+		accept: '*',
+		activeClass: false,
+		addClasses: true,
+		greedy: false,
+		hoverClass: false,
+		scope: 'default',
+		tolerance: 'intersect'
+	}
+});
+
+$.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':
+			var draggableLeft = ((draggable.positionAbs || draggable.position.absolute).left + (draggable.clickOffset || draggable.offset.click).left),
+				draggableTop = ((draggable.positionAbs || draggable.position.absolute).top + (draggable.clickOffset || draggable.offset.click).top),
+				isOver = $.ui.isOver(draggableTop, draggableLeft, t, l, droppable.proportions.height, droppable.proportions.width);
+			return isOver;
+			break;
+		case 'touch':
+			return (
+					(y1 >= t && y1 <= b) ||	// Top edge touching
+					(y2 >= t && y2 <= b) ||	// Bottom edge touching
+					(y1 < t && y2 > b)		// Surrounded vertically
+				) && (
+					(x1 >= l && x1 <= r) ||	// Left edge touching
+					(x2 >= l && x2 <= r) ||	// Right edge touching
+					(x1 < l && x2 > r)		// Surrounded horizontally
+				);
+			break;
+		default:
+			return false;
+			break;
+		}
+
+};
+
+/*
+	This manager tracks offsets of draggables and droppables
+*/
+$.ui.ddmanager = {
+	current: null,
+	droppables: { 'default': [] },
+	prepareOffsets: function(t, event) {
+
+		var m = $.ui.ddmanager.droppables[t.options.scope];
+		var type = event ? event.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[0],(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 == "mousedown") m[i]._activate.call(m[i], event); //Activate the droppable if used directly from draggables
+
+		}
+
+	},
+	drop: function(draggable, event) {
+
+		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, event);
+
+			if (!this.options.disabled && this.visible && this.options.accept.call(this.element[0],(draggable.currentItem || draggable.element))) {
+				this.isout = 1; this.isover = 0;
+				this._deactivate.call(this, event);
+			}
+
+		});
+		return dropped;
+
+	},
+	drag: function(draggable, event) {
+
+		//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, event);
+
+		//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, event);
+			}
+
+			this[c] = 1; this[c == 'isout' ? 'isover' : 'isout'] = 0;
+			this[c == "isover" ? "_over" : "_out"].call(this, event);
+
+			// we just moved out of a greedy child
+			if (parentInstance && c == 'isout') {
+				parentInstance['isout'] = 0;
+				parentInstance['isover'] = 1;
+				parentInstance._over.call(parentInstance, event);
+			}
+		});
+
+	}
+};
+
+})(jQuery);