function ToggleList(item1,item2) {
   obj1=document.getElementById(item1);
   obj2=document.getElementById(item2);
   visible1=(obj1.style.display!="none")
   visible2=(obj2.style.display!="none")
   key1=document.getElementById(item1);
   key2=document.getElementById(item2);
   if (visible1) {
     obj1.style.display="none";
	 obj2.style.display="block";
   } else {
      obj1.style.display="block";
	  obj2.style.display="none";	  
   }
}