function IEHoverPseudo(){
 var navItems = document.getElementById("primary-nav").getElementsByTagName("li"); 
  for (var i=0; i<navItems.length; i++){
   if(navItems[i].className == "menuparent"){
    navItems[i].onmouseover=function(){ 
     this.className += " over";
    }
    navItems[i].onmouseout=function(){
     this.className = "menuparent";
    }
   }
  }
}
window.onload = IEHoverPseudo;