#overlay_canvas {
  position: fixed;
  top: 0px;
  left: 0px;
  height:100%;
  width:100%;
}

.oberlay_hide {
  z-index:-100;
}

.overlay_bg {
  background-color: whiteSmoke;
  z-index: 10000;
}

.overlay_loading_indicator
{
    background-position: 90% 50%;
    z-index: 1000;
    width: 170px;
    position: fixed;
    padding: 5px;
    font-weight: bold;
    text-align: left;
    font-size: 1em;
    background-image: url(../images/overlay/loading-image.gif);
    background-repeat: no-repeat;
}