function __construct($oTemplate = false)
 {
     if (isset($GLOBALS['bxDolClasses'][get_class($this)])) {
         trigger_error('Multiple instances are not allowed for the class: ' . get_class($this), E_USER_ERROR);
     }
     parent::__construct($oTemplate ? $oTemplate : BxDolStudioTemplate::getInstance());
 }
 function __construct($oTemplate = null)
 {
     parent::__construct($oTemplate);
 }
 /**
  * class constructor
  */
 function __construct()
 {
     parent::__construct();
 }