When you use the input fields from the form example below, your custom "send-to-a-friend-form" will contain the e-mail address, the name of the sender and a message, previously forwarded to Addemar.
All the above will then be added to the Header.
Make sure that the name of the submit button reads:"action_forward".
<p><b>Send to a friend</b></p>
<p>Fill in the form below to send the e-mail to a friend or colleague.</p>
<form method="post">
<table>
<tr>
<td>Friend's name:</td>
<td align="left"><input name="forward_to_name[]"></td>
</tr>
<tr>
<td>Friend's e-mail:</td>
<td align="left"><input name="forward_to_email[]"></td>
</tr>
<tr>
<td>Message:</td>
<td align="left"><textarea name="forward_message[]" rows="5" cols="40"></textarea></td>
</tr>
<tr>
<td> </td>
<td align="left"><input type="submit" name="action_forward" value="Send" class="button"></td>
</tr>
</table>
</form>