#main_frame {
  width: 100%;
  background: transparent url('/img/main_frame/bg_main_frame.jpg') top left repeat-x;
  }
#top_center, #middle_center, #bottom_center {
  width: 990px;
  }
#top_left {
  background: transparent url('/img/main_frame/bg_top_left.jpg') bottom right no-repeat;
  }
#top_right {
  background: transparent url('/img/main_frame/bg_top_right.jpg') bottom left no-repeat;
  }
#top_left, #top_center, #top_right {
  height: 389px;
  }
#bottom_left, #bottom_center, #bottom_right {
  background: #efefef url('/img/main_frame/bg_bottom.jpg') top left repeat-x;
  }