activateMenu = function(nav)
{
	id = nav;
   /* currentStyle restricts the Javascript to IE only */
	if (document.all && document.getElementById(id).currentStyle) 
	{  
        var navroot = document.getElementById(id);
        
        var lis=navroot.getElementsByTagName("LI");  
        for (i=0; i<lis.length; i++) {
        
            if(lis[i].lastChild.tagName=="UL"){
            
             	lis[i].onmouseover=function() {	
                
                   this.lastChild.style.display="block";
                }
                lis[i].onmouseout=function() {                       
                   this.lastChild.style.display="none";
                }
            }
        }
    }

}
/*window.onload= function(){
    /* pass the function the id of the top level UL */
    /* remove one, when only using one menu */
    //activateMenu('nav'); 
   // activateMenu('vertnav'); 
//}