<filter name="install_ftp_path" module="install" act="procInstallAdminSaveFTPPath" confirm_msg_code="confirm_submit">
    <form>
        <node target="ftp_root_path" required="true" />
    </form>
    <response callback_func="completeFtpPath">
        <tag name="error" />
        <tag name="message" />
    </response>
</filter>
