Android Question (SOLVED)Posting a web form...

Hi everybody,
first of all Happy New Year!
I have a web form which asks for some data and sends a postback to the server(it a VB.NET page).
I was able to show it on a WEBVIEW window. What I'm asking what is the best way to send the post to server page, clicking some button... I don't want to rewrite the whole page, since it's not under my control.
This should be the protocol:

1. Ask for page to the server.
2. Fill the form's fields and controls like radiobuttons and check box.
3. If the user press a button, outside the WEBVIEW windows, the data are posted to the same page.

Best regards

Mauro Zanin
Logic Data