Title, breadcrumbs

$APPLICATION->SetTitle($ar_props['NAME']);
$APPLICATION->AddChainItem($ar_props['NAME'], null);
echo $APPLICATION->GetTitle();

404 страница

CHTTP::SetStatus('404 Not Found');
@define('ERROR_404', 'Y');
if(SITE_ID != 'ru') {
  CHTTP::SetStatus('404 Not Found');
  @define('ERROR_404', 'Y');
  require($_SERVER["DOCUMENT_ROOT"]."/404.php");
  return;
}