is this a system program or acustomer built on every site?

http://www.1clickprint.com/custom-t-shirts.php

http://www.itailor.com/designshirts.php

does anyone know what system they use like is there a plugin or a company that provides with that kind of program

please let me know i know the second one is using php but is there any made up programs that does everything

thank you

 

How could any one know? These are built on pup, look for the .php

 

Php I Meant!