[jQuery] input radio val checked

1. radio 버튼 에서 체크된 값 가져오기

var mailTp = $('input:radio[name="mailTp"]:checked').val();

2. radio 버튼 값 체크하기

$('input:radio[name=mailTp]:input[value='+mailTp+']').attr("checked", true);

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...

<tr>

<td WIDTH="13%" class="tb_brw_tt">메일</td>

<td WIDTH="20%" class="tb_w_tt" colspan="3">

<input type="radio" name="mailTp" value="01"> 발송

<input type="radio" name="mailTp" value="02"> 미발송

</td>

</tr>

...

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- radio, checkbox 값 check 

$("#open2").attr("checked", 'checked');

$("#emailChk").attr("checked", 'checked');

$("input[name=emailChk]").attr("disabled",false);

// emailChk 체크되어 있는지 유무 파악

var emailChk = $("input:checkbox[id='emailChk']").is(":checked");

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...

<input name="emailChk" id="emailChk" type="checkbox" />

<input name="publicYn" id="open1" type="radio" value="Y" checked /> 공개

<input name="publicYn" id="open2" type="radio" value="N" /> 비공개

...

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- radio default checked 강제 click trigger

$('input:radio[name=useYn]:input[value=N]').attr("checked", true).trigger("click");