startList = function()
{
 if (document.all&&document.getElementById)
{
  navRoot = document.getElementById("HeaderNavigation");
  for (i=0; i<navRoot.childNodes.length; i++)
  {
   node = navRoot.childNodes[i];
   if (node.nodeName=="UL")
   {
    for (i=0; i<node.childNodes.length; i++)
    {
     lnode = node.childNodes[i];
     if (lnode.nodeName == "LI")
     {
      lnode.onmouseover = function()
      {
       this.className += " over";
      }
      lnode.onmouseout= function()
      {
       this.className=this.className.replace (" over", "");
      }
     }
    }
   }
  }
 }
}
window.onload=startList;