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