static protected function formatErrorText($errno, $errstr, $errfile, $errline)
    {

        $retVal = '<div><b>' . self::$errorType [$errno] . ':</b> ' . $errstr . '</div>';
        $retVal .= '<div><b>File:</b> ' . $errfile . '</div>';
        $retVal .= '<div><b>Line:</b> ' . $errline . '</div>';

        return $retVal;

    }