startMenu = function() {
    if (document.all&&document.getElementById) {
        cssmenu = document.getElementById("topMenu");
        for (i=0; i<cssmenu.childNodes.length; i++) {
            node = cssmenu.childNodes[i];
            if (node.nodeName=="LI") {
                node.onmouseover=function() {
                    this.className+=" over";
                    }
                node.onmouseout=function() {                  
                    this.className=this.className.replace(" over", "")
                }
            }
        }
    }
}

if (window.attachEvent) {
    window.attachEvent("onload", startMenu);
    
} else {
    window.onload=startMenu;
    
}