#GB_overlay {
  position: absolute;
  margin: auto;
  top: 0;
  left: 0;
  z-index: 100;
  width:  100%;
  height: 100%;
}

* html #GB_overlay {
  background-color: #fff;
  background-color: transparent;
}

#GB_window {
  top: 35px;
  left: 0px;
  position: absolute;
  background: #4c9700;
  vertical-align:center;
  horizontal-align:center;
  border: 5px solid #4c9700;
  overflow: auto;
  width: 550px;
  height: 550px;
  z-index: 150;
}

#GB_frame {
  border: 0;
  overflow: auto;
  width: 100%;
  height: 550px;
}

#GB_caption {
  font: 11px bold Arial, Helvetica, sans-serif;
  color: #ffffff;
  background: #4c9700;
  padding: 2px 0 2px 5px;
  margin: 0;
  text-align: left;
}

#GB_window img {
  position: absolute;
  top: 0px;
  right: 0px;
  cursor: pointer;
  cursor: hand;
}