Answers for "group radio button"

radio buttons html

<input type="radio" name="gender" value="male"> Male<br>
<input type="radio" name="gender" value="female"> Female<br>
<input type="radio" name="gender" value="other"> Other

disabled radio button

$(':radio:not(:checked)').attr('disabled', true);

set radio button group value

var value = 5;
$("input[name=mygroup][value=" + value + "]").attr('checked', 'checked');

set radio button group value

$("input[name=mygroup][value=" + value + "]").prop('checked', true);