public function htmlizeTag($arrayInfo, $sizeRange)
	{
		if ( isset($this->_htmlizeTagFunction) ) {
			// this cannot be writen in one line or the PHP interpreter will puke
			// appearantly, it's okay to have a function in a variable,
			// but it's not okay to have it in an instance-varriable.
			$htmlizer = $this->_htmlizeTagFunction;
			return $htmlizer($arrayInfo, $sizeRange);
		} else {
			return "<span class='tag size{$sizeRange}'> &nbsp; {$arrayInfo['tag']} &nbsp; </span>";
		}
	}