public function setTopic($channel, $newtopic, $priority = SMARTIRC_MEDIUM)
    {
        $this->send('TOPIC '.$channel.' :'.$newtopic, $priority);
        return $this;
    }
public function setTopic($channel, $newtopic, $priority = SMARTIRC_MEDIUM)
    {
        $this->send('TOPIC '.$channel.' :'.$newtopic, $priority);
        return $this;
    }
public function setTopic ( $ channel , $ newtopic , $ priority = SMARTIRC_MEDIUM ) { $ this -> send ( 'TOPIC ' . $ channel . ' :' . $ newtopic , $ priority ) ; return $ this ; }
sets a new topic of a channel

@param string $channel
@param string $newtopic
@param integer $priority message priority, default is SMARTIRC_MEDIUM
@return Net_SmartIRC
@api
sets a new topic of a channel