var Activemenu = null;
function setSubmenuActive(number)
{
  setSubmenuInActive();
  Activemenu = number;
  divelement = document.getElementById("div"+number);
  divelement.style.display='block';
}
function setSubmenuInActive()
{
  if(Activemenu!=null)
  {
    divelement = document.getElementById("div"+Activemenu);
    divelement.style.display='none';
  }
}