check checked value form radio jquery code example
Example 1: jquery get value of radio input
$('input[name="name_of_your_radiobutton"]:checked').val();
Example 2: get value of checked radio button jquery
$('form input[type=radio]:checked').val();
Example 3: How can I know which radio button is selected via jQuery
if ($('input[name="radioName"]:checked', '#myForm').length) {
//Yes, it's checked!
}