$actions = array(
    'cron' => array(
      'title' => t('Index @count queued items', array('@count' => $status['remaining'])),
      'description' => t('Indexes as much as one cron invocation'),
      'disabled' => TRUE,
    ),
    'remaining' => array(
      'title' => t('Index all queued content'),
      'description' => t('Starts a batch job which could take a long time and could put an increased load on your server.'),
      'disabled' => TRUE,
    ),
    'reindex' => array(
      'title' => t('Queue all content for reindexing'),
      'disabled' => FALSE,
    ),
    'delete' => array(
      'title' => t('Delete the Solr index'),
      'description' => t('Useful with a corrupt index or a new schema.xml.'),
      'disabled' => FALSE,
    ),
  );
  foreach ($actions as $key => $action) {
    // Generate the parents as the autogenerator does, so we will have a
    // unique id for each radio button.
    $form['action'][$key] = array(
      '#type' => 'radio',
      '#title' => check_plain($action['title']),
      //'#default_value' => 'cron',
      '#return_value' => $key,
      '#parents' => array('action'),
      '#description' => (!empty($action['description'])) ? check_plain($action['description']) : '',
      '#id' => drupal_clean_css_identifier('edit-' . implode('-', array('action', $key))),
      '#disabled' => isset($action['disabled']) ? $action['disabled'] : FALSE,
    );
  }