<div class="box_bl_blue"> <div class="box_br_blue"> <div class="box_tl_blue"> <div class="box_tr_blue">
         The other code here.
         </div> </div> </div> </div>

.box_bl_blue 
{ 
	background: #00235D url(http://www.mustangevolution.com/forum/images/misc/box_bl_blue.gif) no-repeat bottom left; 
}

.box_br_blue 
{ 
	background: url(http://www.mustangevolution.com/forum/images/misc/box_br_blue.gif) no-repeat bottom right; 
}

.box_tl_blue 
{ 
	background: url(http://www.mustangevolution.com/forum/images/misc/box_tl_blue.gif) no-repeat top left; 
}

.box_tr_blue 
{ 
	background: url(http://www.mustangevolution.com/forum/images/misc/box_tr_blue.gif) no-repeat top right; 
}