Disclosed is a method for increasing the conversion rate, or the ratio of the number of actual buyers to the number of site visitors, of an computer-implemented system such as an Internet e-commerce website. The pixels in each row are arranged with a respective connection to a common reset wire that is arranged to transmit a reset signal. In an open position a rib of the door is an abutment against a shoulder of the casing, thus preventing any disassembling of the door from the casing.