Check if all radio groups are checked
JavaScript
var elements = {};
var count = 0;
$(':radio').each(function () {
elements[$(this).attr('name')] = true;
});
$.each(elements, function () {
count++;
});
if ($(':radio:checked').length === count) {
// All radio groups have a value selected
} else {
// There is a radio button group with an empty value
}