Has anyone already built a single SIM checkout page in Authorize.net with a menu combining fixed-price purchase items and donation windows that I can adapt for use and link to from our not-for-profit website. I have built a simple checkout, but I need to enable users to select, pay, and/or donate all on one screen without having to "continue shopping" (sent back to a separate menu) between selected items.
I'm a simple webmaster (diletante-interloper) here, but surely I shoudn't have to invent a wheel that's already available off-the-shelf in quantity, such as is the case with simple checkout.
Thanks in advance
