Anybody with a Crewmax know if the back seat bottoms flip up? I was under the impression that the seat-backs fold down, and aside from the bottoms sliding, that they were pretty much fixed. Salesman tells me that the seats also fold up, but I thought that was just on the DC. No info is available on this on Toyota's web site. If they flip up, that would be great! Any pics would help as well, thanks!!