글쓰기상에 분류를 선택하면 선택한 분류에 따른 입력필드가 나타납니다.

각각의 입력필드는 분류 선택에 따라 필수또는 아니게 되야하는데 안되네요;;;;;;;;

문제는 선택안된 분류의 입력필드가 필수가 지정되네요.

뭐가 문제일까요?

 

 

<div class="cc h40 downline">
<div class="wh">분류</div>
<div class="wp">
<input type='radio' name="ca_name" required itemname="분류" value="서울" <? if($write[ca_name] == "서울")  echo 'checked';?> onclick='show(1);'> 서울
<input type='radio' name="ca_name" value="인천" <? if($write[ca_name] == "인천")  echo 'checked';?> onclick='show(2);'> 인천
<input type='radio' name="ca_name" value="강원" <? if($write[ca_name] == "강원")  echo 'checked';?> onclick='show(3);'> 강원
<input type='radio' name="ca_name" value="부산" <? if($write[ca_name] == "부산")  echo 'checked';?> onclick='show(4);'> 부산
</div>
</div>

 

 

<div id='cas1' style='display:none;'><!----------------------------------------------------서울-->

<div class="cc h40 downline">
<div class="wh">서울</div>
<div class="wp">

<select name=wr_map1 id="map1" value="<?=$write[wr_map1]?>" class="h24 w200">
<option value="<?=$write[wr_map1]?>"><?=$write[wr_map1]?></option>
</select>

</div>
</div>

</div> <!----------------------------------------------------서울-->

<div id='cas2' style='display:none;'><!----------------------------------------------------인천-->

<div class="cc h40 downline">
<div class="wh">인천</div>
<div class="wp">

<select name=wr_map2 id="map2" value="<?=$write[wr_map2]?>" class="h24 w200">
<option value="<?=$write[wr_map2]?>"><?=$write[wr_map3]?></option>
</select>

</div>
</div>

</div> <!----------------------------------------------------인천-->

<div id='cas3' style='display:none;'><!----------------------------------------------------강원-->

<div class="cc h40 downline">
<div class="wh">강원</div>
<div class="wp">
<select name=wr_map3 id="map3" value="<?=$write[wr_map3]?>" class="h24 w200">
<option value="<?=$write[wr_map3]?>"><?=$write[wr_map3]?></option>
</select>

</div>
</div>

 

 

</div> <!----------------------------------------------------강원-->

<div id='cas4' style='display:none;'><!----------------------------------------------------부산-->
</div> <!----------------------------------------------------부산-->

 

<script type="text/javascript">
function show(t){

if (t==1) {
 document.getElementById('cas1').style.display = 'block';
 document.getElementById('cas2').style.display = 'none';
 document.getElementById('cas3').style.display = 'none';
 document.getElementById('cas4').style.display = 'none';
 $('#map1).attr('required','true').show()
 $('#map2).attr('required','false').show()
 $('#map3).attr('required','false').show()
}else if (t==2) {
    document.getElementById('cas1').style.display = 'none';
 document.getElementById('cas2').style.display = 'block';
 document.getElementById('cas3').style.display = 'none';
 document.getElementById('cas4').style.display = 'none';
 $('#map1).attr('required','false').show()
 $('#map2).attr('required','true').show()
 $('#map3).attr('required','false').show()
}else if (t==3) {
 document.getElementById('cas1').style.display = 'none';
 document.getElementById('cas2').style.display = 'none';
 document.getElementById('cas3').style.display = 'block';
 document.getElementById('cas4').style.display = 'none';
 $('#map1).attr('required','false').show()
 $('#map2).attr('required','false').show()
 $('#map3).attr('required','true').show()
}else if (t==4) {
 document.getElementById('cas1').style.display = 'none';
 document.getElementById('cas2').style.display = 'none';
 document.getElementById('cas3').style.display = 'none';
 document.getElementById('cas4').style.display = 'block';
 $('#map1).attr('required','false').show()
 $('#map2).attr('required','false').show()
 $('#map3).attr('required','false').show()
}

} //function
</script>
<? if($w=='u') {
if ($write[ca_name] == "서울") { ?>
<script type="text/javascript">show(1);</script>
<? }else if ($write[ca_name] == "인천") { ?>
<script type="text/javascript">show(2);</script>
<? }else if ($write[ca_name] == "강원") { ?>
<script type="text/javascript">show(3);</script>
<? }else if ($write[ca_name] == "부산") { ?>
<script type="text/javascript">show(4);</script>
<?}?>
<?}?>