#topbar
{ position:absolute;
  border: 1px solid black;
  padding: 2px;
  background-color: lightyellow;
  width: 170px;
  visibility: hidden;
  z-index: 100;
}
#adbar
{ position:absolute;
  border: 1px solid black;
  padding: 2px;
  background-color: lightyellow;
  width: 170px;
  z-index: 100;
  top: 5px;
  left: 5px;
}