// JavaScript Document
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);