Simple Form Autofiller

We have a website where visitors fill out there details in a form which you can review here: [login to view URL] What we need is, when they hit the submit button we need to open two new browser windows and auto fill out forms with the details they just entered. Points to note: Both of these two new forms are external to our site and we do not have control of them and can not make changes to them. An example of one of them is: [login to view URL] The idea is that these external companies have agreed to provide sponsorship through free gifts to our clients and visitors. We dont want our visitors to have to fill all this information in twice so we're trying to cut down on data entry for them and speed the process up. Please include in your reply how you expect to solve the problem and anything you may need from us. We're happy to load the changes and conduct testing on the live site if you'd prefer.