Add newsletter checkbox in Contact Plugin

[parti02]

Hi,
i have add a newsletter checkbox in the contact.php

Code Select Expand

       
<tr>
         <td colspan="2" class="tableb" valign="top" align="center">
            <input type="checkbox" name="newsletter" id="newsletter" class="checkbox" /><label for="newsletter" class="clickable_option"> Yes, i want to get a newsletter.</label>
         </td>
</tr>
<tr>
<td colspan="2" class="tableb" valign="top" align="center"><b> <?php echo $lang_plugin_contact['spam_question'];?></b></td>
</tr>


If the checkbox is checked, i want to add a little text on the end of the email message. For example "send newsletter".
How can i make it?

Parti