#homebutton a  {
   background-image: url(sg_home_media/homebutton.gif);
}

#layer1  {
   position: absolute;
   left: 24px;
   top: 111px;
   z-index: 4;
   width: 547px;
   height: 504px;
   background-image: url(sg_home_media/layer1.gif);
   background-repeat: no-repeat;
}