>I know what you mean, but that implies that i load the page first, then set this values and submit the form, if theres no other way i will use it that way, but, do you know if theres any way i could post that data right to the server calling the page once? do you know how the "postdata" parameter works in the "NavigateTo" method?.

You cannot manipulate content of a Web page if you do not load it before. If you talk about a browsing approach, that's how it works. However, you don't have to show that object. You can move it off the screen or make invisible. So, you will obtain the same result.