You can assume, that name is unique and all radio in group has the same name. Then you can use jQuery support like that
Method 1 : Target by .is (long)
Say you had radio buttons like these, for example:
<input type='radio' name='gender' value='Male'>
<input type='radio' name='gender' value='Female'> And you wanted to check the one with a value of “Male” onload if no radio is checked:
$(function() {
var $radios = $('input:radio[name=gender]');
if($radios.is(':checked') === false) {
$radios.filter('[value=Male]').prop('checked', true);
}
}); Method 2 : One-liner target (short)
$('input:radio[name="gender"][value="Male"]').prop('checked', true); 