아래는 write.skin.php 입니다...
라디오 버튼 필수 체크되는 스크립트 좀 알려주세요
필수체크방법과 필수체크해제 좀 알려주세요

1,아래는 필수체크되어야합니다.....
<tr>
      <td bgcolor="#F8F8F9" style='padding-left:20px; height:30px;'>· 주문내용 </td>
      <td colspan="4" bgcolor="#F8F8F9"><input type=radio name="wr_3" value="aa" <? if($write[wr_3] == "견적신청")  echo "checked"; ?> onClick="if(this.checked) {document.getElementById('wr_subject').value='견적신청 의뢰입니다';document.getElementById('wr_9').value='견적신청' } else {document.getElementById('wr_subject').value='';document.getElementById('wr_9').value='';}" />
        견적신청  
        <input type=radio name="wr_3" value="bb" <? if($write[wr_3] == "구매의뢰")  echo "checked"; ?> onClick="if(this.checked) {document.getElementById('wr_subject').value='구매의뢰 입니다 ';document.getElementById('wr_9').value='구매의뢰';} else {document.getElementById('wr_subject').value='';document.getElementById('wr_9').value='구분1';}" />
        구매의뢰 
        <input type=radio name="wr_3" value="cc" <? if($write[wr_3] == "배송문의")  echo "checked"; ?> onClick="if(this.checked) {document.getElementById('wr_subject').value='배송문의 의뢰입니다';document.getElementById('wr_9').value='배송문의';} else {document.getElementById('wr_subject').value='';document.getElementById('wr_9').value='구분2';}" />
        배송문의 
        <input type=radio name="wr_3" value="dd" <? if($write[wr_3] == "기타문의")  echo "checked"; ?> onClick="if(this.checked) {document.getElementById('wr_subject').value='기타문의 입니다';document.getElementById('wr_9').value='기타문의';} else {document.getElementById('wr_subject').value='';document.getElementById('wr_9').value='구분3';}" />
        기타문의  <br />
        <font color="#FF3300"> ※ 신청할 항목을 선택하시면 제목과 주문내용은 자동입력됩니다.</font> </td>

2.필수체크해제 좀 알려주세요
<tr>
      <td rowspan="2" style='padding-left:20px; height:30px;'>· 주소</td>
      <td colspan="3"><input class='field' type='text' name='ext10_00' value='<?=$ext10_00?>' size='5' maxlength='3' readonly <?=$config[cf_req_addr]?'required':'';?> itemname='우편번호 앞자리' />
        -
        <input class='field' type='text' name='ext10_01' value='<?=$ext10_01?>' size='5' maxlength='3' readonly <?=$config[cf_req_addr]?'required':'';?> itemname='우편번호 뒷자리' />
         <a href="javascript:;" onClick="win_zip('fwrite', 'ext10_00', 'ext10_01', 'ext10_02', 'ext10_03');"><img  src='<?=$board_skin_path?>/img/search_btn.gif'  align='absmiddle' border='0' /></a></td></tr>
    <tr>
      <td colspan="3"><input class='field' type='text' name='ext10_02' value='<?=$ext10_02?>' size='35' readonly <?=$config[cf_req_addr]?'required':'';?> required itemname='주소' />
          <input class='field' type='text' name='ext10_03'  value='<?=$ext10_03?>' size='20' <?=$config[cf_req_addr]?'required':'';?> required itemname='상세주소' />
        (상세주소)</td></tr>
    <tr>