function cssmenuhover()
{
        if(!document.getElementById("cssmenu")) return;
        var lis = document.getElementById("cssmenu").getElementsByTagName("li");
        var len = lis.length;
        for (var i=0; i<len; 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);