<form action="<?php echo str_replace('&', '&amp;', $action); ?>" method="post" id="checkout">
  <input type="hidden" name="VPSProtocol" value="2.23" />
  <input type="hidden" name="TxType" value="<?php echo $transaction; ?>" />
  <input type="hidden" name="Vendor" value="<?php echo $vendor; ?>" />
  <input type="hidden" name="Crypt" value="<?php echo $crypt; ?>" />
</form>
<div class="buttons">
  <table>
    <tr>
      <td align="left"><a onclick="location = '<?php echo str_replace('&', '&amp;', $back); ?>'" class="button"><span><?php echo $button_back; ?></span></a></td>
      <td align="right"><a onclick="$('#checkout').submit();" class="button"><span><?php echo $button_confirm; ?></span></a></td>
    </tr>
  </table>
</div>
