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"), "");
		}		
      }
      var sfEls2 = document.getElementById("nav2").getElementsByTagName("LI");
      for(var i=0; i<sfEls2.length; i++) {
      		sfEls2[i].onmouseover=function() {
	    		this.className+=" sfhover";
        	}
         	sfEls2[i].onmouseout=function() {
            		this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
         	}
      	 }
}
if (window.attachEvent) window.attachEvent("onload", sfHover);