Auto-Complete Web Forms

I have a web application in Visual Basic where I retrive information from many web sites. However, there are some sites that have security features so if a person goes to a certain page with query strings instead of filling out the form, it gives them an error. What I want is a simple program where I feed in the textbox name and a value. It fills the text in automatically. For anyone who accepts, I will be providing the form to work with. There will be two textboxes. One will be the text to autofill. The second will be the name of the textbox. When I click the okay command it runs through code and autofills in the textbox with the proper data. ## Deliverables Full source code for the command box so when someone clicks the Okay, it enters the text in the textbox specified.