<!DOCTYPE html> <h1>Page 2</h1> <span id="submissionTime"><?php print microtime();?></span><br/> <form action="./post-in-iframe-with-back-navigation-page-3.php" name="form" method="POST"> </form> <a id="link" href="javascript:document.form.submit();">to page 3</a><br/> <a id="backLink" href="javascript:history.back();">go back</a>