sfHover = function() {     
	var sfEls = document.getElementById("Navigation").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"), "");
			}     
		} 
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if (window.attachEvent) window.attachEvent("onload", sfHover);