How do I submit call handler on radio button selection?
This should do it:

$(function() {
  $('input[type="radio"]').on('change', function() {
    $(this).parents('form').submit();
  });
});


You might want to qualify the selector for $('input[type="radio"]') to the scope of the form you're working with, else if you include this in a JavaScript file that's accessed on many different pages, you'll definitely run into problems!

Demo:  http://plnkr.co/edit/8448bjiywnVtbT3CV6s6?p=info