function &_loadElement($event, $type, $args)
    {
        $type = strtolower($type);
        if (!self::isTypeRegistered($type)) {
            $error = self::raiseError(null, QUICKFORM_UNREGISTERED_ELEMENT, null, E_USER_WARNING, "Element '$type' does not exist in HTML_QuickForm::_loadElement()", 'HTML_QuickForm_Error', true);
            return $error;
        }
        $className = $GLOBALS['HTML_QUICKFORM_ELEMENT_TYPES'][$type][1];
        $includeFile = $GLOBALS['HTML_QUICKFORM_ELEMENT_TYPES'][$type][0];
        include_once($includeFile);
        $elementObject = new $className(); //Moodle: PHP 5.3 compatibility
        for ($i = 0; $i < 5; $i++) {
            if (!isset($args[$i])) {
                $args[$i] = null;
            }
        }
        $err = $elementObject->onQuickFormEvent($event, $args, $this);
        if ($err !== true) {
            return $err;
        }
        return $elementObject;
    }