public function row($r, $last = false)
	{
		$this->_strategy->output($this->beginRow());
		
		$values = array_values($r);
		$valuesl = count($values);
		
		for ( $i = 0 ; $i < $valuesl ; $i++ )
			$this->column($values[$i], $i+1 == $valuesl);
		
		$this->_strategy->output($this->endRow() . ($last ? '' : $this->rowSeparator()));
	}