/* Get the filterFormPart
	*	return $part;
	*/
	function getFilterFormPart() {
		$part = $this->getPart(array($this->getFilterFormPartName()));
		Gen::includeClass('PntSqlCombiFilter', 'pnt/db/query');
		$propFilter = $this->getPropertyFilter();
		if ($propFilter) {
			$combi = new PntSqlCombiFilter();
			$combi->addPart($propFilter);
			$part->setImplicitCombiFilter($combi);
		} 
		return $part;
	}