http: Output HTML pages to send requests to a Web server

This class can be used to output HTML pages to send requests to a Web server.

It can generate a page that makes the user be redirected to a given URL passing a list of parameters by either issuing HTTP redirect headers or embedding Javascript in the page.

The class can also make the browser send an HTTP POST request by generating a form with hidden input field set to given values and adding the necessary Javascript to make the browser submit the form to a given URL.