The button calls some javascript, I didn't feel like following it all through either. Ctrl+Shift+J brings up the developer tools, on the Network tab watch what happens when you press the button. Select one of the requests and you can view the full request and response.
BTW, I did get my script working. So thank you...and I had no idea how to properly use the developer tools and I do see how you got that information now so thank you very much.
