  engine    
   {THEME}     

  install.php        .


    ,       engine/engine.php,    :
 :
switch ( $do ) {

  :
	case "orderdesc":
		include ENGINE_DIR . '/modules/orderdesc.php';
		break;

 :
elseif ($do == 'pm') $nam_e = $lang['title_pm'];
  :
elseif ($do == 'orderdesc') $nam_e = " ";



       :
/index.php?do=orderdesc