Why is this HTML modified?

Hi,

I have a form in a table like the one below. It is saved in a MySQL database via php, and its function is to send an email. I had an RTF editor implemented before FCK and the exact same thing happened as in FCK when I open the below code and save it again:

the ending form tag '</form>' is moved up immediately after the opening form tag thus rendering the form inoperable. I've tried it dozens of times - the code gets modified when I save. Anybody who knows why, and if there's a remedy for it? For now I just don't resave this part of the code as I can only correct it directly in the db via phpmyadmin.

thanks in advance

<table class="moon_table"><tr><td> <form action="index.php" method="post" name="mail_form" class="mail_form"> </td></tr> <tr><td><br /></td><td><input type="hidden" name="id" value="" /><br /></td></tr><tr><td class="tlabel">Name</td> <td><input type="text" name="name" value="" class="descfield" size="60" /></td> </tr> <tr><td class="tlabel">Email</td><td><input type="text" name="email" value="" class="descfield" size="60" /></td></tr> <tr><td class="tlabel">Subject</td> <td><input type="text" name="subj" value="" class="descfield" size="60" /></td></tr> <tr><td colspan="2"><textarea name="body" class="tarea"></textarea></td> </tr> <tr><td><input type="submit" name="send_mail" value="Send" class="sendbutton" /></td></tr> </form></table>