navHover = function() {
        var lis = document.getElementById("navmenu-h").getElementsByTagName("LI");
        for (var i=0; i<lis.length; i++) {
                lis[i].onmouseover=function() {
                        this.className+=" iehover";
                }
                lis[i].onmouseout=function() {
                        this.className=this.className.replace(new RegExp(" iehover\\b"), "");
                }
        }
}
if (window.attachEvent) window.attachEvent("onload", navHover);