function toggle_photo_form(show) {
  if (show) {
    if ($('form-photo').style.display == 'none') {
      Effect.BlindDown('form-photo', { duration: 0.5 });
      $('form-message').style.display = 'none';
    }
  }
  else {
    if ($('form-photo').style.display != 'none') {
      $('form-photo').style.display = 'none';
      Effect.BlindDown('form-message', { duration: 0.5 });
    }
  }
  return false;
}

function toggle_subject(radio) {
  return toggle_photo_form(radio.value == 'photo');
}