function my_module_node_add_modal_callback($js = FALSE) {
  global $user;
  if (!$js) {
    return "Javascript required";
  }
  ctools_include('node.pages', 'node', '');
  ctools_include('modal');
  ctools_include('ajax');
  ctools_add_js('auto-submit');


  // Create a blank node object.
  $node = (object) array(
    'uid' => $user->uid,
    'name' => (isset($user->name) ? $user->name : ''),
    'type' => 'node_type',
    'language' => LANGUAGE_NONE,
    );


  $form_state = array(
    'title' => t('Add node'),
    'ajax' => TRUE,
  );


  $form_state['build_info']['args'] = array($node);
  $output = ctools_modal_form_wrapper('node_type_node_form', $form_state);



  if (!empty($form_state['executed'])) {

  }


  print ajax_render($output);
  exit;
}

if (!empty($form_state['executed'])) {
  $output = array();
  if ($form_state['nid']) {
    $node = node_load($form_state['nid']);


     $form_state = array(
        'title' => t('Add node'),
        'ajax' => TRUE,
      );


     $form_state['build_info']['args'] = array($node);
     $output = ctools_modal_form_wrapper('node_type_node_form', $form_state);
  }
}

/**
 * Page callback to deliver node edit form via CTools AJAX/modal.
 *
 * @param boolean|null $js
 *   TRUE if Javascript is enabled, NULL otherwise.
 * @param object $node
 *   The node to edit.
 *
 * @return array
 *   Array of Drupal Ajax Commands.
 */
function pads_secure_file_edit_ajax($js, $node) {
  // Fallback if $js is not set.
  if (!$js) {
    module_load_include('inc', 'node', 'node.pages');
    return node_page_edit($node);
  }

  ctools_include('modal');
  ctools_include('ajax');

  $output = array();
  $type_name = node_type_get_name($node);
  $title = t('<em>Edit @type</em> @title', array(
    '@type' => $type_name,
    '@title' => $node->title,
  ));
  $form_state = array(
    'title' => $title,
    'ajax' => TRUE,
    'build_info' => array(
      'args' => array($node),
    ),
  );
  ctools_form_include_file($form_state, drupal_get_path('module', 'node') . '/node.pages.inc');
  $form_state['build_info']['args'] = array($node);

  $output = ctools_modal_form_wrapper($node->type . '_node_form', $form_state);

  if (!empty($form_state['executed'])) {
    $output = array();
    // If node submit, reload page.
    $triggering_element_id = array_key_exists('#id', $form_state['triggering_element']) ?
      $form_state['triggering_element']['#id'] : '';
    if (strpos($triggering_element_id, 'edit-submit') === 0) {
      $output[] = ctools_ajax_command_reload();
    }
    else {
      $output = array();
    }
  }

  print ajax_render($output);
  drupal_exit();
}