function sfHoverEvents(sfEls) {
    var len = sfEls.length;
    for (var i = 0; i < len; i++) {
        sfEls[i].onmouseover = function () {
            this.className += " sfhover";
        }
        sfEls[i].onmouseout = function () {
            this.className = this.className.replace(" sfhover", "");
        }
    }
}
function sfHover() {
    var ULs = document.getElementsByTagName("UL");
    var len = ULs.length;
    for (var i = 0; i < len; i++) {
        if (ULs[i].className.indexOf("sf-menu") != -1)
            sfHoverEvents(ULs[i].getElementsByTagName("LI"));
    }
}
if (window.attachEvent) window.attachEvent("onload", sfHover);