loadTopMenu = function() 
{ 
if (document.all&&document.getElementById) 
 {  
  menunavParent = document.getElementById("menu2"); 
 
   for (x=0; x < menunavParent.childNodes.length; x++) 
     {  
        menunode = menunavParent.childNodes[x];
   
           if (menunode.nodeName=="LI") 
             {   
              menunode.onmouseover=function() 
                {    
                this.className+=" over";   
                }   
                menunode.onmouseout=function() 
                {    
                  this.className=this.className.replace(" over", "");
   }
           }
        }
     }
}

window.onload=loadTopMenu;