/* for menus */
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)};