-<form accept-charset="utf-8" action="{?URL?}/modules.php?module=admin&what=lock_user&userid=$content[userid]" method="post">
+<form accept-charset="utf-8" action="{%url=modules.php?module=admin&what=lock_user&userid=$content[userid]%}" method="post">
<table border="0" cellspacing="0" cellpadding="0" class="admin_table dashed">
<tr>
<td align="center" class="admin_title bottom">