# File app/helpers/application_helper.rb, line 296
    def radio_group(field, choices, options={})
      title = options.delete(:title) || label_for_field(@object, field)
      note = options.delete(:note)
      with_format(title, choices.map { |item|
                    radio_button(field, item[1]) << ' ' << item[0] }.to_s,
                  note)
    end