public function getPClasses($type = null)
    {
        $this->_checkConfig();

        if (!$this->pclasses) {
            $this->pclasses = $this->getPCStorage();
            $this->pclasses->load($this->pcURI);
        }
        $tmp = $this->pclasses->getPClasses(
            $this->_eid, $this->_country, $type
        );
        $this->sortPClasses($tmp[$this->_eid]);
        return $tmp[$this->_eid];
    }