>>I was able to get that to work. Thank you. However, I need to take a further step. Not only do I need to login to their application, but I also need to fill out a form on their site with my criteria, and post that form. Basically, it seems like I need to do 2 steps from my app, yet their application will have control after step #1:
>>
>>1. Login to their app
>>2. Fill out a form on their site with my criteria and submit it.
>
>In all situations, doing something like this requires you to know the names of the fields. So, it will be the same approach for the additional fields you need to fill.

Yes, but at that point (Step #2), the user will be in the other web application. The user's browser will be displaying HTML code and JavaScript from that other application. I don't see how I will have access to the other web application at that point. Maybe I am missing something.