Modified E1a regulatory sequences are provided, wherein at least one Pea3 binding site, or a functional portion thereof, is deleted. The locking member locks the door in an opened position and the damper member provides resistance as the door moves from the opened position to the closed position. The invention is also directed to a space summary page and an equipment summary page. An actuatable control valve is provided in the rebreathing line between the expiration branch and the reservoir port. The acquired satellite signals may be used to locate position of the remote receiver. In addition, the AF controlling portion controls the operation of the CCDAF portion according to the subject distance to prioritize either a focusing accuracy or a focusing speed.