htdocs/modules/system/templates/blocks/system_block_online.html
<{$block.online_total}><br /><br /><{$block.lang_members}>: <{$block.online_members}><br /><{$block.lang_guests}>: <{$block.online_guests}><br /><br /><{$block.online_names}> <a href="javascript:openWithSelfMain('<{$xoops_url}>/misc.php?action=showpopups&type=online','Online',420,350);" title="<{$block.lang_more}>"><{$block.lang_more}></a>