Creates a checkout pane in Drupal Commerce for Google AdWords tracking

commerce_adwords_conversion_pane.info

name = Checkout Pane AdWords
description = AdWords campaign tracking (hard-coded)
package = Commerce (contrib)
dependencies[] = commerce_checkout
core = 7.x

; Information added by drupal.org packaging script on 2012-12-09
version = "7.x-1.x-dev"
core = "7.x"
project = "checkout_pane_adwords"

commerce_adwords_conversion_pane.module

<?php
/**
 * @file checkout_pane_shipping_details.module
 * Adds a new pane that creates a text message for describing shipping methods
 */

/**
 * Implements hook_commerce_checkout_pane_info().
 *
 * This is where we define the name of the pane, related information, and
 * the base name of all the form builder functions used to present the
 * pane.
 */
function checkout_pane_adwords_commerce_checkout_pane_info() {

  $panes['checkout_pane_adwords'] = array(
    'title' => '',
    'base' => 'checkout_pane_adwords_pane',

    // The checkout page where this should be displayed by default.
    'page' => 'complete',
    'weight' => 60,
  );

  return $panes;
}
/**
 * Example Pane: form callback.
 *
 * This is a standard FAPI form which will be presented in the pane.
 * The form gathers and stores information from $order->data, an array which
 * can be populated with free-form keys and values.
 */
function checkout_pane_adwords_pane_checkout_form($form, &$form_state, $checkout_pane, $order) {
  $message = '
<!-- Google Code for Internet Sale Conversion Page -->
<script type="text/javascript">
/* <![CDATA[ */
var google_conversion_id = YOUR_ADWORDS_ID;
var google_conversion_language = "en";
var google_conversion_format = "2";
var google_conversion_color = "ffffff";
var google_conversion_label = "YOUR_LABEL";
var google_conversion_value = 0;
/* ]]> */
</script>
<script type="text/javascript" src="//www.googleadservices.com/pagead/conversion.js">
</script>
<noscript>
<div style="display:inline;">
<img height="1" width="1" style="border-style:none;" alt="" src="//www.googleadservices.com/pagead/conversion/1041075554/?value=0&amp;label=rObDCJqUmQUQ4pq28AM&amp;guid=ON&amp;script=0"/>
</div>
</noscript>
  ';
  $pane_form['checkout_pane_adwords'] = array( 
    '#markup' =>  $message
  );
  return $pane_form;
}
?>

Empty pane title is confusing
Otherwise Thanks!