/**
* Show article's history
* Show all versions of an article
* Versions are displayed in reverse chronological order
*
* @param integer $id_area Area ID
* @param string $lang Language code
* @param string $bid, unique ID for articles
* @return void
*/
public function history($id_area, $lang, $bid)
{
// load dictionaries
$this->dict->get_wordarray(array('history', 'articles'));
// get the page
$page = $this->get_page('articles/history');
$view = new X4View_core('container');
// left
$view->content = new X4View_core('articles/history');
$view->content->page = $page;
$view->content->bid = $bid;
$view->content->navbar = array($this->site->get_bredcrumb($page), array('articles' => $_SESSION['referer']));
// left
$mod = new Article_model();
$view->content->art = $mod->get_by_bid($bid);
$view->content->history = $mod->get_history($id_area, $bid);
$view->render(TRUE);
}