function swapMenu(item) {
    var cats = $('cat_menu');
    var mans = $('man_nav_div');

    if (item == 'men') {
        cats.setStyle('display','none');
        mans.setStyle('display','block');
    } else {
        cats.setStyle('display','block');
        mans.setStyle('display','none');
    }
}


sfHover = function() {
    var sfEls = document.getElementById("nav").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);