로그인이전과 로그인이후 버튼 다르게출력하기

<? if (!$member['mb_id']) { ?>
            <!-- 로그인 이전 -->
            <td width="78"><a href="<?=$g4['bbs_path']?>/login.php?url=<?=$urlencode?>"><img src="<?=$g4['path']?>/img/top_m02.gif" width="78" height="31" border="0"></a></td>
            <td width="78"><a href="<?=$g4['bbs_path']?>/register.php"><img src="<?=$g4['path']?>/img/top_m03.gif" width="78" height="31" border="0"></a></td>
            <? } else { ?>
            <!-- 로그인 이후 -->
            <td width="78"><a href="<?=$g4['bbs_path']?>/logout.php"><img src="<?=$g4['path']?>/img/top_m04.gif" width="78" height="31" border="0"></a></td>
            <td width="78"><a href="<?=$g4['bbs_path']?>/member_confirm.php?url=register_form.php"><img src="<?=$g4['path']?>/img/top_m05.gif" width="78" height="31" border="0"></a></td>
            <? } ?>