Looking for some help on this form I am building.

invites.fasken.com/skiday_07/rsvp.html

This is what I have now:

$URL = "invites.fasken.com/skiday_07/thanks.html";
header ("Location: $URL";

The very last question for ski rentals has 2 radio buttons. YES and NO.

What I need it to do is when some one Submits the form with NO selected for rentals they are sent to a thanks.html page. But is they select YES I want them directed to rentals.html page.

Please help

Thanks!<font color=red></font id=red>

<pre id=code><font face=courier size=2 id=code>
if ($_POST['radiobuttonname'] == 'YES')
{
$URL = "invites.fasken.com/skiday_07/rentals.html";
}
else if ($_POST['radiobuttonname'] == 'NO')
{
$URL = "invites.fasken.com/skiday_07/thanks.html";
}
header ("Location: $URL";
</font id=code></pre id=code>