The invention is about a sliding mechanism for a portable electronic device. The ND filter covers the stop aperture when the diaphragm blade is moved to open the aperture. The navigation system module 21 itself sends the center controller 11 a query about vehicle information, recognizes the vehicle information supplied from the center controller 11, and automatically sets the screen design, function, etc. In order to allow an automatic adaptation of the foot to varying heel heights while ensuring a good stability, an articulated connection transmits the angular position of the connecting part in relation to the base foot part in a proportional manner to the angular position of the forefoot part in relation to the base foot part. Areas of specific focus in this document include delegation of duties between the internet server and the WebDAV tool, efficient management of a resource’s content-type, support for segregation of a namespace into separate virtual roots, and determinations of whether to invoke certain processing extensions to handle requests for a given HTTP verb. The chip is fabricated by producing multiplicities of vias made of an electrically conducting material which pass through said surface layer and are positioned respectively above the internal pads.