[% USE HTML %] <form method="post" action="ar.pl">

  <input name="callback" type="hidden" value="[% callback %]">

  Create new<br>

  <input class="submit" type="submit" name="action" value="Sales Transaction">
  <input class="submit" type="submit" name="action" value="Sales Invoice">

 </form>

</body>
</html>