+
+ /**
+ * Render a 404 page (uses the template : tpl/404.tpl)
+ *
+ * usage : $PAGE->render404('The link was deleted')
+ * @param string $message A messate to display what is not found
+ */
+ public function render404($message='The page you are trying to reach does not exist or has been deleted.') {
+ header($_SERVER['SERVER_PROTOCOL'] . ' 404 Not Found');
+ $this->tpl->assign('error_message', $message);
+ $this->renderPage('404');
+ }