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