ctools modal useage

I'm working on using ctools modal and ajax as a replacement for popups api. For the first part of the replacement path I'm working on the user login and register. I've got it working so far thanks to a little guidance from Roger Lopez and, of course, thanks to Earl for the awesome code in the first place.

Here is the code I have going for me so far:

/**
 * Implementation of hook_menu().
 */
function mc_menu() {  
  $items['user/login/%ctools_js'] = array(
    'page callback' => 'mc_ajax',
    'page arguments' => array(1, 2),
    'access arguments' => array('access content'),
    'type' => MENU_CALLBACK,
  );
  
  $items['user/register/%ctools_js'] = array(
    'page callback' => 'mc_ajax',
    'page arguments' => array(1, 2),
    'access arguments' => array('access content'),
    'type' => MENU_CALLBACK,
  );
  
  return $items;
}

/**
 * Menu callback for our ajax links.
 */
function mc_ajax($type, $js) {
  switch ($type) {
    case 'login':
      $title = t('Login');
      $form_id = 'user_login';
      $msg = 'You are now logged in.';
      break;
    case 'register':
      $title = t('Register');
      $form_id = 'user_register';
      $msg = 'You are now registered.';
      break;
  }
  if ($js) {
    ctools_include('modal');
    ctools_include('ajax');
    $form_state = array(
      'ajax' => TRUE,
      'title' => $title,
    );
    $output = ctools_modal_form_wrapper($form_id, $form_state);
    if (empty($output)) {
      $output[] = ctools_modal_command_display('Welcome', $msg);
    }
    ctools_ajax_render($output);
  }
  else {
    return drupal_get_form($form_id);
  }
}

The problem I'm having is that I would like to be able to refresh the page after a successful login or registration, but I couldn't find a way to send a command through ctools_ajax_render() that would do this. Is there cause for a new command within ajax_responder.js:Drupal.CTools.AJAX.commands or is there an existing way to do this?

Thank you again for this library! It has banished my recent stagnation and got my gears in motion again.