/** @return string the css style for the InformationPart */
	function getInfoStyle() {
		if ($this->infoStyle)
			return $this->infoStyle;

        $info = $this->getInformation();
		if ($info!==null && subStr($info, 0, 2) == 'OK')
			return $this->getInfoStyleOk();
			
		return 'pntInfo';
	}