#GB_overlay {
  background: #000000;
  opacity: 0.75;
  position: absolute;
  margin: auto;
  top: 0;
  left: 0;
  z-index: 100;
  width:  100%;
  height: 100%;
}

#GB_window {
  top: 10px;
  left: 0px;
  position: absolute;
  background: #fff;
  border: 1px solid #fff;
  overflow: auto;
  width: 400px;
  height: 400px;
  z-index: 150;
  text-align: center;
}

#GB_frame {
  border: 0;
  overflow: auto;
  width: 100%;
  height: 380px;
}

#GB_caption {
  font: 12px bold helvetica, verdana, sans-serif;
  color: #fff;
  background: #888;
  padding: 2px 0 2px 5px;
  margin: 0;
  text-align: left;
}

#GB_window img.button {
  position: absolute;
  top: 2px;
  right: 5px;
  cursor: pointer;
  cursor: hand;
}

#GB_content {
    background: black;
    margin: 0px;
    padding: 0px;
}

#GB_left_button {
    position: absolute;
    z-index: 150;
    left: 127px;
    top: 33px;
}

#GB_right_button {
    position: absolute;
    z-index: 150;
    top: 33px;
    left: 817px;
}