<a href="member.php?action=logout&uid={$mybb->user['uid']}&sid={$session->sid}">{$lang->change_user}</a>
<a href="member.php?action=logout&uid={$mybb->user['uid']}&logoutkey={$mybb->user['logoutkey']}">{$lang->change_user}</a>
<a href="{$mybb->settings['bburl']}/member.php?action=logout&uid={$mybb->user['uid']}&sid={$session->sid}">{$lang->welcome_logout}</a>
<a href="{$mybb->settings['bburl']}/member.php?action=logout&uid={$mybb->user['uid']}&logoutkey={$mybb->user['logoutkey']}">{$lang->welcome_logout}</a>
<a href="member.php?action=logout&uid={$mybb->user['uid']}&sid={$session->sid}">{$lang->index_logout}</a>
<a href="member.php?action=logout&uid={$mybb->user['uid']}&logoutkey={$mybb->user['logoutkey']}">{$lang->index_logout}</a>