function MM_findObj(n, d) 
	{
		var p,i,x;  
		if(!d) d=document;
		if((p=n.indexOf("?"))>0&&parent.frames.length) 
		{
			d=parent.frames[n.substring(p+1)].document; 
			n=n.substring(0,p);
		}
		if(!(x=d[n])&&d.all) x=d.all[n]; 
		for (i=0;!x&&i<d.forms.length;i++)	x=d.forms[i][n];
		for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
		if(!x && d.getElementById) x=d.getElementById(n); 
		return x;
	}

	function MM_showHideLayers() 
	{
		var i,p,v,obj,args=MM_showHideLayers.arguments;
		for (i=0; i<(args.length-2); i+=3) 
			if ((obj=MM_findObj(args[i]))!=null) 
			{ 
				v=args[i+2];
				if (obj.style) 
				{ 
					obj=obj.style; 
					v=(v=='show')?'visible':(v=='hide')?'hidden':v; 
				}
				obj.visibility=v; 
			}
	}

	
	var t;
	var currentLayer = 'intro';

	function startMouseOut(id) 
	{
		t = window.setTimeout("switchLayer('intro')",1000);
	}

	function startMouseOver(id)
	{
		switchLayer('program_picture_'+id);
	}

	function switchLayer(name) 
	{
		MM_showHideLayers(currentLayer,'','hide',name,'','show');
		currentLayer = name;
	}