Pastable version of Javascript Coverflow

&lt;script&gt;
var coverflow;
function load(){
coverflow = new Coverflow(&quot;tmp&quot;);
coverflow.add(&quot;http://gallery.mac.com/devon.govett/100032/50970014.jpg?derivative=medium&amp;source=web.jpg&amp;type=medium&amp;ver=12124007550006&quot;,&quot;Sunset&quot;, &quot;In Oregon&quot;);
coverflow.add(&quot;http://gallery.mac.com/devon.govett/100032/50960013.jpg?derivative=medium&amp;source=web.jpg&amp;type=medium&amp;ver=12124010000005&quot;,&quot;Snowy&quot;, &quot;In Oregon&quot;);
coverflow.add(&quot;http://gallery.mac.com/devon.govett/100032/50970016_2.jpg?derivative=medium&amp;source=web.jpg&amp;type=medium&amp;ver=12124012900006&quot;,&quot;Another Sunset&quot;, &quot;In Oregon&quot;);
coverflow.add(&quot;http://www.yesterland.com/images-sidetrips/flower2007_floating.jpg&quot;,&quot;Flower&quot;, &quot;Somewhere&quot;);
coverflow.render();
}

&lt;/script&gt;
&lt;/head&gt;
&lt;body onload=&quot;load()&quot; bgcolor=&quot;black&quot;&gt;
&lt;div id=&quot;tmp&quot;&gt;
&lt;/div&gt;
&lt;/body&gt;
&lt;/html&gt;

</pre>
 </div>
 </div>

<div style="overflow:auto;border:solid 1px #ccc;background:#000;color:#F8F8F8">
 <div class="section">
 Javascript
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 <pre class="sunburst">function Coverflow(parent){
	var values = new Array();
	this.covers = new Array();
	this.titles = new Array();
	this.descriptions = new Array();
	// Space between covers
	this.cover_spacing = 40;
	
	// Space from top for center cover
	this.top_space = 40;
	
	this.centerItem = 0;
	this.oldCenter = this.centerItem;
	// Space for items, left and right of center, from top
	this.leftright_top_space = 30;
	
	// Space between center and 3d covers
	this.center_space=150;
	
	this.hookEvent = function(element, eventName, callback)
	{
	 if(typeof(element) == &quot;string&quot;)
	 element = document.getElementById(element);
	 if(element == null)
	 return;
	 if(element.addEventListener)
	 {
	 element.addEventListener(eventName, callback, false);
	 }
	 else if(element.attachEvent)
	 element.attachEvent(&quot;on&quot; + eventName, callback);
	}
	var m = this;
	this.MouseWheel = function(event)
	 {
		 var delta = 0;
		if (!event) event = window.event;
		if (event.wheelDelta)
		{
			delta = event.wheelDelta / 120;
		}
		else if (event.detail)
		{
			delta = -event.detail / 3;
		}
		if (delta){
			if(delta &gt; 0){
				if(m.centerItem-1 &gt;= 0){
					m.slider.setValue(values[m.centerItem-=1]);
				
				}
			}else{
				if(m.centerItem+1 &lt; m.covers.length){	
					m.slider.setValue(values[m.centerItem+=1]);
				
				}	
			}
		}	
		if (event.preventDefault) event.preventDefault();
		event.returnValue = false;
		
	 }
	 
	//Parent DIV element
	 this.parent = document.getElementById(parent);
	 this.hookEvent(window, 'DOMMouseScroll', this.MouseWheel);
	 this.hookEvent(document, 'mousewheel', this.MouseWheel);
	
	//Adds an image to the coverflow
	this.add = function(image, title, description){
		var cover = document.createElement(&quot;img&quot;);
		cover.src = image;
		cover.width = 200;
		cover.id = &quot;cover &quot;+this.covers.length;
		this.parent.appendChild(cover);
		this.covers[this.covers.length] = cover;
		this.titles[this.covers.length-1] = title;
		this.descriptions[this.descriptions.length] = description;
	}
	
	//Draws the coverflow with reflections, and 3d covers
	this.render = function(){
		this.title = document.createElement(&quot;div&quot;);
		this.title.style.color = &quot;white&quot;;
		this.title.style.position = &quot;absolute&quot;;
		this.title.style.left=&quot;0px&quot;;
		this.title.style.top = &quot;100px&quot;;
		this.title.style.zIndex = 2000000;
		this.title.style.width=window.innerWidth+&quot;px&quot;;
		this.title.style.textAlign=&quot;center&quot;;
		this.parent.appendChild(this.title);
		
		this.description = document.createElement(&quot;div&quot;);
		this.description.style.color = &quot;white&quot;;
		this.description.style.position = &quot;absolute&quot;;
		this.description.style.left=&quot;0px&quot;;
		this.description.style.top = &quot;200px&quot;;
		this.description.style.zIndex = 2000000;
		this.description.style.width=window.innerWidth+&quot;px&quot;;
		this.description.style.textAlign=&quot;center&quot;;
		this.parent.appendChild(this.description);
		
		var t = this;
		this.ScrollBar = document.createElement('div');
		this.ScrollBar.style.backgroundImage = &quot;url(scrollbar-back.png)&quot;;
		this.ScrollBar.style.position=&quot;absolute&quot;;
		this.ScrollBar.style.top=&quot;300px&quot;;
		this.ScrollBar.style.left=window.innerWidth/2 - 400/2 + 'px';
		this.ScrollBar.style.width=&quot;400px&quot;;
		this.ScrollBar.style.zIndex=200;
		
		this.left = document.createElement('img');
		this.left.src = 'scrollbutton-left.png';
		this.left.style.position=&quot;absolute&quot;;
		this.left.style.left = parseInt(this.ScrollBar.style.left) - 20 + 'px';
		this.left.style.top = parseInt(this.ScrollBar.style.top) + 'px';
		this.left.style.zIndex=0;
		this.left.onclick = function(){t.slider.setValue(values[t.centerItem-=1]);};
		this.parent.appendChild(this.left);
		
		this.right = document.createElement('img');
		this.right.src = 'scrollbutton-right.png';
		this.right.style.position=&quot;absolute&quot;;
		this.right.style.zIndex=20;
		this.right.style.left=&quot;100%&quot;;
		this.right.onclick = function(){t.slider.setValue(values[t.centerItem+=1]);};
		
		this.scroller = document.createElement('img');
		this.scroller.src = 'scrollbar-button.png';
		this.scroller.style.zIndex=200;
		this.scroller.width = parseInt(this.ScrollBar.style.width)/this.covers.length;
		this.scroller.height = 16;
		this.ScrollBar.appendChild(this.scroller);
		this.ScrollBar.appendChild(this.right);
		this.parent.appendChild(this.ScrollBar);
		
		
		var tick = this.covers.length;
		for(var i=0;i&lt;this.covers.length;i++){
			values[values.length] = i*tick;
		}	
		this.slider = new Control.Slider(this.scroller,this.ScrollBar,{
				values: values,
				sliderValue:this.centerItem,
				alignX:-2,
				range: $R(0,this.covers.length*this.covers.length-this.covers.length),
				onChange:function(v){
					t.centerItem = v/t.covers.length;
					t.reRender();
				},
		 		onSlide:function(v){
					t.centerItem = v/t.covers.length;
					t.reRender();
				}
		});
		for(var i=0;i&lt;this.covers.length;i++){
			if(i != this.centerItem){
				if(i &lt; this.centerItem){
					cvi_reflex.add(document.getElementById(&quot;cover &quot;+i), { tilt: &quot;right&quot; });
				}
				else{
					cvi_reflex.add(document.getElementById(&quot;cover &quot;+i), { tilt: &quot;left&quot; });
				}
			}
			else{
				cvi_reflex.add(document.getElementById(&quot;cover &quot;+i), { });
				this.title.innerHTML = &quot;&lt;b&gt;&quot;+this.titles[i]+&quot;&lt;/b&gt;&quot;;
				this.description.innerHTML = this.descriptions[i];
			}
			document.getElementById(&quot;cover &quot;+i).style.position = &quot;absolute&quot;;
			document.getElementById(&quot;cover &quot;+i).onclick = function(){t.slider.setValue(values[this.id.split(&quot; &quot;)[1]]);};
		}
		this.ScrollBar.style.top = document.getElementById(&quot;cover &quot;+this.centerItem).offsetTop+
					(document.getElementById(&quot;cover &quot;+this.centerItem).offsetHeight + 20)+&quot;px&quot;;
				this.left.style.top = parseInt(this.ScrollBar.style.top) + 'px';

this.title.style.top = document.getElementById(&quot;cover &quot;+this.centerItem).offsetTop+
					(document.getElementById(&quot;cover &quot;+this.centerItem).offsetHeight-20)+&quot;px&quot;;
		this.description.style.top = parseInt(this.title.style.top)+15+&quot;px&quot;;			
		this.alignCovers();
	}
	
	//Re-renders the coverflow	
	this.reRender = function(){
		if((this.centerItem &lt; this.covers.length)||(this.centerItem &gt;= 0)){
			if((this.centerItem != this.oldCenter +1)||(this.centerItem != this.oldCenter -1)){
				for(var i=0;i&lt;this.covers.length;i++){
					if(i &lt; this.centerItem){
						cvi_reflex.modify(document.getElementById(&quot;cover &quot;+i), {tilt: &quot;right&quot; });
			
					}else{
						cvi_reflex.modify(document.getElementById(&quot;cover &quot;+i), {tilt: &quot;left&quot; });
					}
				}
			}		
			if(this.oldCenter &lt; this.centerItem){
				cvi_reflex.modify(document.getElementById(&quot;cover &quot;+this.oldCenter), {tilt: &quot;right&quot; });
	
			}else{
				cvi_reflex.modify(document.getElementById(&quot;cover &quot;+this.oldCenter), {tilt: &quot;left&quot; });
			}	
			cvi_reflex.modify(document.getElementById(&quot;cover &quot;+this.centerItem), {tilt: &quot;none&quot; });
			this.title.innerHTML = &quot;&lt;b&gt;&quot;+this.titles[this.centerItem]+&quot;&lt;/b&gt;&quot;;
				this.description.innerHTML = this.descriptions[this.centerItem];
			this.alignCovers();
		}	
		
			
			
	}
		
		
		
	//Animates covers going to their locations
	this.alignCovers = function(){
		for(var i=0;i&lt;this.covers.length;i++){
			new Effect.Appear (&quot;cover &quot;+i, {duration: 1});
			if(i == this.centerItem){
				document.getElementById(&quot;cover &quot;+i).style.visibility = &quot;visible&quot;; 
				document.getElementById(&quot;cover &quot;+i).style.zIndex = 100000;
				var yy = window.innerWidth/2 - (parseInt(document.getElementById(&quot;cover &quot;+i).style.width)/2);
				new Effect.Move (&quot;cover &quot;+i,{ duration: 1, x: yy, y: 20, mode: 'absolute'});
			}
			else if(i &lt; this.centerItem){
					document.getElementById(&quot;cover &quot;+i).style.zIndex = i;
					var yy = ((window.innerWidth/2 - parseInt(document.getElementById(&quot;cover &quot;+this.centerItem).style.width)/2 - parseInt(document.getElementById(&quot;cover &quot;+i).style.width)) - ((this.centerItem - i)*(i + (i == this.centerItem-1?-15:40))));
					new Effect.Move (&quot;cover &quot;+i,{ duration: 1, x: yy, y: 20, mode: 'absolute'});
			}
			else if(i &gt; this.centerItem){
					document.getElementById(&quot;cover &quot;+i).style.zIndex = this.covers.length-i;
					var yy = (window.innerWidth/2 - parseInt(document.getElementById(&quot;cover &quot;+this.centerItem).style.width)/2 + parseInt(document.getElementById(&quot;cover &quot;+i).style.width)) - (this.centerItem -i)*(i - (i == this.centerItem+1?15:-30));
					new Effect.Move (&quot;cover &quot;+i,{ duration: 1, x: yy, y: 20, mode: 'absolute', });
			}
			if(i &lt; this.centerItem-4){
				new Effect.Fade (&quot;cover &quot;+i, {duration: 1}); 
			}		
			else if(i &gt; this.centerItem+4){
				new Effect.Fade (&quot;cover &quot;+i, {duration: 1});
			}	
			this.oldCenter = this.centerItem;

}
		
	}	
	return this;
}

</pre>
 </div>
 </div>

Refactor :my => 'code'

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Pastable version of Javascript Coverflow