sfHover = function() {
			var sfEls = document.getElementById("navi").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)
else if (window.addEventListener) 
  window.addEventListener("load",sfHover,true);
else
	window.onload=sfHover;