the invention is disclosed and declared to upgrade any existing e - commerce web sites with a new feature to allow / enable barcode scanning services without requiring a change of the customer &# 39 ; s online environment or a large integration process with the current e - commerce application provider . the additional barcode scanner enabled services and products , as the one referred to herein as scanclik ™, are available for the customer either on a floating pop - up web application interface or a browser toolbar . thanks to the invention , very easily and without undue interference with the existing e - commerce web - site , the web - site customers have the ability to upload barcode data from any barcode scanner device to an intermediary window and eventually post it to the current shopping cart of the customer , and the ability to print customized catalogs and labels from any list displayed on the e - commerce application and from the shopping cart .