데브 캐슬

var n = $( "aaaaa" ).length;

aaa 클릭하면 서브밋~

<script>

  function aaa(){

       $('#aform').submit();

  }

</script>

<form name="" id="aform" >

</form>

<a href="javascript:aaa();" >  aaa </a>

<script type="text/javascript" >

var id = "cname";

var obj1 = $("#"+id);

var name = "name";

var obj2 = $("input[name = "+id+"]") ;

</script>

<input id="cname" name="name"  title='이름' type="text"   required >

<input type="radio" class="radio"   name="a1" value='A'        >

<input type="radio" class="radio"   name="a1" value='B'        >

<input type="radio" class="radio"   name="a1" value='C'        >

$('input:radio[name=a1]:input[value=' + 'B'+ ']').attr("checked", true);

==>  중간 B 가 선택되어 진다.

<input type='text'  name='abc'  value='111' >

console.log(  '' +    $("input[name=abc]"  ).val()   );