Payment Cards, is a set of 10 different card brands each on their own PSD that is easily customized. You can use these however you wish, but the idea was a catalyst framework for commerce, that can replace your current drop down windows and boring input boxes. Instead your customers are presented with this pleasing simple graphic.
The customer would enter their card number and your (possible) script would auto detect the card type after the first 4 digits are entered, the card background image would change to suit the card being used. Instead of providing a link on how to find the cc code on the back of the card, the image shows clearly where to locate and input the code.