.forumhead_left {
   display: block;
   position: relative;
   background: url('http://www.fansinblack.com/x/images/vb4style-vb4/misc/forumhead_left.png') no-repeat top left;
   -moz-border-radius-topleft: 5px;
   -webkit-border-top-left-radius: 5px;
}

.forumhead_right {
   display: block;
   position: relative;
   background: none;
   -moz-border-radius-topright: 5px;
   -webkit-border-top-right-radius: 5px;
}