Constructing a mailto: link

Helping out our lug.  I inherited web responsibilities and the other 
fellow has moved on and is hard to contact.  At this link there is a 
mailto
http://www.statususer.org/statususer/html/reservations.html

<td valign="top">
<form name="frm1" enctype="text/plain" method="post" 
action="mailto:sample@xxxxxxxxxx?subject=Monthly Reservations">

The form prompts for attendees, but I fail to see where it would put them 
in the body of the email.  I wonder if it was only half done.  Or, since I 
am a novice on html, is it because I am using a Notes client for email? Is 
constructing body on mailto: non standard and just not done?

If I had scads of time I suppose I would prompt the company name from a 
database, if not there, peddle a membership.  And then store the responses 
in a database or something.  But that's for a later date...

Rob Berendt