.rbroundbox { background: url(nt.gif) repeat; }
.rbtop div { background: url(tl.gif) no-repeat top left; }
.rbtop { background: url(tr.gif) no-repeat top right; }
.rbbot div { background: url(bl.gif) no-repeat bottom left; }
.rbbot { background: url(br.gif) no-repeat bottom right; }

/* height and width stuff, width not really nessisary. */
.rbtop div, .rbtop, .rbbot div, .rbbot {
width: 100%;
height: 7px;
font-size: 1px;
}
.rbcontent { margin: 0 7px; }
.rbroundbox {
	width: 100%;
	margin-top: 1em;
	margin-right: auto;
	margin-bottom: 1em;
	margin-left: auto;
}