/**
  * Update title and description of a document
  *
  * @param Docman_Item $item The item
  */
 public function updateDocument(Docman_Item $item)
 {
     $update_data = $this->client->initializeSetterData();
     $update_data = $this->client->appendSetterData($update_data, 'title', $item->getTitle());
     $update_data = $this->client->appendSetterData($update_data, 'description', $item->getDescription());
     $this->client->update($item->getid(), $update_data);
 }