protected function redirect_to_return_to()
 {
     #if (isset($this->return_to)) {
     #	$return_to = $this->return_to;
     #} elseif (isset($_GET['return_to'])) {
     #	$return_to = $_GET['return_to'];
     #} else {
     #	$return_to = $this->get_current_url_file_str();
     #}
     #
     ##echo $return_to;
     ##exit;
     #
     #header("Location: $return_to");
     #exit;
     $return_to_url = $this->get_return_to_url();
     #print_r($return_to_url); exit;
     #$return_to_url->make_absolute_for_current_server();
     PublicHTML_RedirectionHelper::redirect_to_url($return_to_url);
 }
 public static function redirect_to_log_in_page()
 {
     PublicHTML_RedirectionHelper::redirect_to_url(self::get_log_in_page_url());
 }