<filter name="update_member_join_form" module="member" act="procMemberAdminUpdateJoinForm">
    <form>
        <node target="member_join_form_srl" required="true" />
        <node target="mode" required="true" />
    </form>
    <response callback_func="completeUpdateJoinForm">
        <tag name="error" />
        <tag name="message" />
    </response>
</filter>
