public function parseFunction($funcString)
    {
        $pos = strpos($funcString, "(");
        $pos1 = strpos($funcString, ")");
        if ($pos>0 && $pos1>$pos)
        {
            $funcName = substr($funcString,0,$pos);
            $funcParams = substr($funcString,$pos+1,$pos1-$pos-1);
            return array($funcName, $funcParams);
        }
        return null;
    }