Basically, I think that I can\'t, but would be very happy to be proven wrong.
I am generating an HTML menu dynamically in PHP, adding one item for each current user,
I would like to share my implementation as well. It does require some javascript though.
<form action="./index.php" id="homePage" method="post" style="display: none;">
<input type="hidden" name="action" value="homePage" />
</form>
<a href="javascript:;" onclick="javascript:
document.getElementById('homePage').submit()">Home</a>
Nice thing about this, is that contrary to GET requests, it doesn't show the parameters on the URL, which is safer.