#acc {list-style:none; }
#acc h3 {border:1px solid #9ac1c9; padding:6px 6px 8px; font-weight:bold; margin-top:5px; cursor:pointer; background:url(images/header.gif)}
#acc h3:hover {background:url(images/header_over.gif)}
#acc .acc-section {overflow:hidden;}
#acc .acc-content {border-top:none; }

#nested {list-style:none; }
#nested h3 {padding:6px 6px 8px; margin-top:5px; cursor:pointer; background:url(images/header.gif)}
#nested h3:hover {background:url(images/header_over.gif)}
#nested .acc-section {overflow:hidden; }
#nested .acc-content {padding:15px; border-top:none; }
#nested .acc-selected {background:url(images/header_over.gif)}