A dielectric film for a printed wiring board that has excellent heat resistance, moisture resistance, insulation properties, adhesiveness, ease of handling, ease of processing, and the like, and possesses low elasticity and high elongation as stress relief functions. A Least Common Multiple signal enables all clocks to have coincident clock edges occurring at every LCM edge. Selecting a view causes a second region of the interface to display the view, including a list of software. Actions are taken when the group attempts to exceed either the local maximum number of sessions or the network-wide maximum number of sessions by more than a predetermined number. Entryway includes a removable seal for sealing entry for preventing litter from escaping when litter box is in collapsed position during both shipping of clean litter and discarding of used litter.