another clean way getting value from hidden input radio when using Twitter Bootstrap 3

Twitter Bootstrap Radio Button Form Inputs.html

<form>
<div class="btn-group" data-toggle-name="is_private" data-toggle="buttons" >
        <label class="btn btn-default">
          <input type="radio" name="private" value="1"> Yes
        </label>
        <label class="btn btn-default">
          <input type="radio" name="private" value="0"> No
        </label>>
</div>
<input type="hidden" name="is_private" value="0" />
</form>

Twitter Bootstrap Radio Button Form Inputs.js

$('div.btn-group[data-toggle-name]').each(function() {
    var group = $(this);
    var name = group.attr('data-toggle-name');
    var hidden = $('input[name="' + name + '"]', $form);
    $('label', group).each(function() {
        var button = $(this).find('input:radio');
        $(this).on('click', function() {
            //console.log( button.val() );
			hidden.val(button.val());
        });
        if (button.val() == hidden.val()) {
            $(this).addClass('active');
        }
    });
});