function MsieMenuHack() {
    var agt=navigator.userAgent.toLowerCase();
    var is_major = parseInt(navigator.appVersion);
    var is_ie = ((agt.indexOf("msie") != -1) && (agt.indexOf("opera") == -1));
    if (is_ie) {
        var xfolders=document.getElementsByTagName('ul');
        for(var i=0;i<xfolders.length;i++) {
            if(xfolders[i].className == 'folder')  {
                xfolders[i].onmouseout = new Function('this.style.display=\'none\'; ');
                xfolders[i].onmouseover = new Function('this.style.display=\'block\'; ');
                xfolders[i].parentNode.xsfolder = xfolders[i];
                xfolders[i].parentNode.onmouseover = new Function('this.xsfolder.style.display=\'block\'; ');
           }
          
        }
     }
}

function addEvent(obj, evType, fn){
    if (obj.addEventListener){
        obj.addEventListener(evType, fn, false);
        return true;
    } else if (obj.attachEvent){
        var r = obj.attachEvent("on"+evType, fn);
        return r;
    } else {
        return false;
    }
}

addEvent(window,'load',MsieMenuHack);