function Toggle(item)
{
   obj=document.getElementById(item);
   visible=(obj.style.display!="none")
   key=document.getElementById("x" + item);
   imgkey = document.getElementById(item+ "img");
   if (visible)
   {
     obj.style.display="none";
     
   }
   else
   {
      obj.style.display="block";
     
   }
}