var containers = new Array();
	var rollovers = new Array();
	
	function hasClass(ele,cls) 
	{
		return ele.className.match(new RegExp('(\\s|^)'+cls+'(\\s|$)'));
	}

	function addClass(ele,cls) 
	{
		if (!this.hasClass(ele,cls)) ele.className += " "+cls;
	}
	
	function removeClass(ele,cls) 
	{
		if (hasClass(ele,cls)) 
		{
			var reg = new RegExp('(\\s|^)'+cls+'(\\s|$)');
			ele.className=ele.className.replace(reg,' ');
		}
	}
		
	function showContainer(num)
	{
		for(var i = 0;i<3;i++)
		{
			containers[i].style.visibility = (i==num)?("visible"):("hidden");
			(i==num)?(addClass(rollovers[i],"sliderOver"+(i+1))):(removeClass(rollovers[i],"sliderOver"+(i+1)));
		}
			
	}
	
	function init()
	{
		containers.push(document.getElementById('cont1'));
		containers.push(document.getElementById('cont2'));
		containers.push(document.getElementById('cont3'));
		rollovers.push(document.getElementById('roll1'));
		rollovers.push(document.getElementById('roll2'));
		rollovers.push(document.getElementById('roll3'));
		showContainer(0);
	}