protected function getStoreId($id = '')
	{
		// Compile the store id.
		$id .= ':' . $this->getState('filter.extension');
		$id .= ':' . $this->getState('filter.search');
		$id .= ':' . $this->getState('filter.published');
		$id .= ':' . $this->getState('filter.access');
		$id .= ':' . $this->getState('filter.language');
		$id .= ':' . $this->getState('filter.level');
		$id .= ':' . $this->getState('filter.tag');

		return parent::getStoreId($id);
	}