sfHover = function() {

var ieULs = document.getElementById('nav').getElementsByTagName('ul');
/** IE script to cover select elements with iframes **/
for (j=0; j<ieULs.length; j++) {
ieULs[j].innerHTML = ('<iframe src="javascript:false;" scrolling="no" frameborder="0"></iframe>' + ieULs[j].innerHTML);
    var ieMat = ieULs[j].firstChild;
        ieMat.style.width=ieULs[j].offsetWidth+"px";
        ieMat.style.height=ieULs[j].offsetHeight+"px";
        ieULs[j].style.zIndex="99";
}

    var sfEls = document.getElementById("nav").getElementsByTagName("LI");
    var iehoverTXT = new RegExp(" sfhover\\b");

    for (var i=0; i<sfEls.length; i++) {
        sfEls[i].onmouseover=function() {
            this.className=this.className.replace(iehoverTXT, "");
            this.className+=" sfhover";
        }
        sfEls[i].onmousemove=function() {
            this.className=this.className.replace(iehoverTXT, "");
            this.className+=" sfhover";
        }
        sfEls[i].onmouseout=function() {
            this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
        }
    }
}
if (window.attachEvent) window.attachEvent("onload", sfHover);