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

$(function(){
    $('#navbar li').hover(
        function() {
            // Replace fadeIn with slideDown for sliding effect
            $(this).children('ul').css('left','auto').hide().fadeIn('slow');
        },
        function() {
            // Replace fadeOut with slideUp for sliding effect
            $(this).children('ul').css('left','-999em').hide();
        }
    );
});