startList = function() {
    if (document.all&&document.getElementById) {
        var sfEls = document.getElementById("menu_div_id").getElementsByTagName("LI");
        for (i=0; i<sfEls.length; i++) {
            node = sfEls[i];
            if (node.nodeName=="LI") {
                node.onmouseover=function() {
                    this.className+="sfhover";
                }
                node.onmouseout=function() {
                    this.className=this.className.replace("sfhover", "");
                }
            }
        }
    }
        var sfEls = document.getElementById("menu_div_id").getElementsByTagName("UL");
        for (i=0; i<sfEls.length; i++) {
            node = sfEls[i];
            if (node.nodeName=="UL" && node.className != 'mainmenu') {
                if (node.offsetTop < 0 ) {
                    node.style.top='1.4em';
                }
            }
        }

}
window.onload=startList;