protected function calculateTotalItemCount()
	{
		$baseCriteria=$this->model->getDbCriteria(false);
		if($baseCriteria!==null)
			$baseCriteria=clone $baseCriteria;
		$count=$this->model->count($this->getCountCriteria());
		$this->model->setDbCriteria($baseCriteria);
		return $count;
	}