if($_SERVER['HTTP_HOST'] == 'www.dev.rts-magazin.de' || $_SERVER['HTTP_HOST'] == 'www.dev.die-fassade.de' || $_SERVER['HTTP_HOST'] == 'www.dev.forum-wintergaerten.de' || $_SERVER['HTTP_HOST'] == 'www.dev.lift-journal.de'){
include(JPATH_BASE.'/../overlay.php');
}
?>