function showlayer(layer)
{
	var myLayer=document.getElementById(layer);
	if(myLayer.style.display=="none" || myLayer.style.display=="")
	{
		myLayer.style.display="block";
	} 
	else 
	{ 
		myLayer.style.display="none";
	}
}

sfHover = function() 
{     
	var sfEls = document.getElementById("menu").getElementsByTagName("LI");     
	for (var i=0; i < sfEls.length; i++) 
	{         
		sfEls[i].onmouseover=function() 
		{             
			this.className+=" sfhover";         
		}         
		sfEls[i].onmouseout=function() 
		{             
			this.className=this.className.replace(new RegExp(" sfhover\\b"), "");         
		}     
	} 
} 
if (window.attachEvent) window.attachEvent("onload", sfHover);