function cssmenuhover()
{
    if(!document.getElementById("cssmenu"))
        return;
    var lis = document.getElementById("cssmenu").getElementsByTagName("LI");
    for (var i=0;i<lis.length;i++)
    {
        lis[i].onmouseover=function(){this.className+=" iehover";}
        lis[i].onmouseout=function() {this.className=this.className.replace(new RegExp(" iehover\\b"), "");}
    }
}
if (window.attachEvent)
    window.attachEvent("onload", cssmenuhover);