I create an environment for Sellers can sells what they have, and each
sellers will have an Google Merchant Account.
When a buyer A visits and buys something from Seller B, something from
Seller C, then he does purchase. My system will send this order to
Google Checkout System, but you know I don't want to open a new window
for buyer log in to Google Checkout System, I want to do it by
programming. I research google checkout API but can't find something
new. Please gives me some advices to solve this.
Thank you so much.
Su, Le