but, in this way, it doesn't pass the the passed priviously variables!
I go to a site (www.mysite.com/page.php) in which there are some buttons! This buttons redirect the user to the same page (page.php) but, passing post data, they show different information!
Now, let's think that I have a webbrowser in my app, on which user navigates and go to www.mysite.com/page.php that shows a simple string: "Hi"! Then, the user clicks on a button and now the site shows "Hello".
If I try to refresh the page by script by using the code above, the site shows again the first message ("Hi")!
How can I pass the old post data, so it can continue show "Hello"?