sfHover = function()
	{ 
	var sfEls = document.getElementById("nav").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);