Clear a html form when revisiting via history
<p>I just implemented a sendmail in PHP called from a html page with a form. It requires filling some textfields, then pressing the submit button causing the mail to be sent. So far so good.</p>

<p>Now I need this form to be cleared on successful mail transmission.</p>

<p>My guess is that Internet Explorer (or other) saves all field values when moving on to another page. This makes it easy to go back in browser history and resend the mail. What I want is that on a succesful transmission of the mail the form cache (or whatever) is cleared. This must be done in the PHP page called.</p>

<p>Has anyone got a clue how to solve this?</p>
