POST headers

What are the HTTP Headers performing a POST? I need to simulate a POST to a webpage. NOTE: I do not want to use curl or the post-to-host function, since these get the information. What I want to do is this: I enter the page "localhost/post.php" where there are a set of HTTP Headers for sending a post to "domain.com/result.php". From this point on, domain.com handles the displaying of the result. Just exactly the same process as a HTML-form, just without the form. Thanks, // Tobias