SELECTED ANSWER
replied on October 26, 2015
In your form, give each radio button field the CSS class name, radio. Then have a single line field with the CSS class name, count. You can then use the following JS
$(document).ready(function () {
$('.count input').attr('readonly', true);
$('.radio').change(function () {
var count=0;
$('.radio input:checked').each(function(){
if ($(this).val().replace(/V_/g,'')=="No") {
count += 1;
}
});
$('.count input').val(count);
});
});
It will make the single line field read only and count how many "No" options have been selected any time a radio button field has been changed.