<form action="http://postmail.invotes.com/send"
method="post" id="email_form">
<input type="text" name="subject" placeholder="Subject" />
<textarea name="text" placeholder="Message"></textarea>
<input type="hidden" name="access_token" value="abc123" />
<input type="hidden" name="success_url" value="." />
<input type="hidden" name="error_url" value=".?err=1" />
<input id="submit_form" type="submit" value="Send" />
</form>