protected function checkBrowserMaxthon() {
        if( stripos($this->_agent,'Maxthon') !== false ) {
            $aresult = explode('/',stristr($this->_agent,'Maxthon'));
            $aversion = explode(' ',$aresult[1]);
            $this->setVersion($aversion[0]);
            $this->setBrowser(self::BROWSER_COOL_MAXTHON);
            return true;
        }
        return false;
    }