.rb {	
	position: relative;
	padding: 0px;
}
.rb-t {
	background:transparent url(t.jpg) repeat-x left top;

}
.rb-b {
position: relative;
	background:transparent url(b.jpg) repeat-x center bottom;
	
}
.rb-cl {
	background:transparent url(cl.jpg) repeat-y left top;
	
}
.rb-cr {
	background:transparent url(cr.jpg) repeat-y right bottom;
	
}

.rb-tr,
.rb-tl,
.rb-bl,
.rb-br{
	background-color:	transparent;
	position: absolute;
	background-repeat: no-repeat;
	margin: 0;
	padding: 0;
	width: 15px;height: 15px;
}
.rb-tr {
	right: 0px;
	top: 0px;
	background-image:	url(tr.jpg);
}
.rb-tl {
	left: 0px;
	top: 0px;
	background-image:	url(tl.jpg);
}

.rb-br {
	right: 0px;
	bottom: 0px;
	background-image:	url(br.jpg);
}
.rb-bl {
	left: 0px;
	bottom: 0px;
	background-image:	url(bl.jpg);
}