[ZoNT]

navHover = function() {
var lis = document.getElementById("navmenu").getElementsByTagName("LI");
for (var i=0,l=is.length; i<l; i++) {
  lis[i].onclick=function() {
    var reg = /iehover$/;
    if (reg.test(this.className))
      this.className=this.className.replace(reg, "");
    else this.className+=" iehover";
  }
}
}
if (window.attachEvent) window.attachEvent("onload", navHover);