Javascript slideshow help

[bpoilspill]

Here's my tpl_header.php

<?php
/**
 * Common Template - tpl_header.php
 *
 * this file can be copied to /templates/your_template_dir/pagename<br />
 * example: to override the privacy page<br />
 * make a directory /templates/my_template/privacy<br />
 * copy /templates/templates_defaults/common/tpl_footer.php to /templates/my_template/privacy/tpl_header.php<br />
 * to override the global settings and turn off the footer un-comment the following line:<br />
 * <br />
 * $flag_disable_header = true;<br />
 *
 * @package templateSystem
 * @copyright Copyright 2003-2006 Zen Cart Development Team
 * @copyright Portions Copyright 2003 osCommerce
 * @license http://www.zen-cart.com/license/2_0.txt GNU Public License V2.0
 * @version $Id: tpl_header.php 3392 2006-04-08 15:17:37Z birdbrain $
 */
?>

<?php
  // Display all header alerts via messageStack:
  if ($messageStack->size('header') > 0) {
    echo $messageStack->output('header');
  }
  if (isset($_GET['error_message']) && zen_not_null($_GET['error_message'])) {
  echo htmlspecialchars(urldecode($_GET['error_message']));
  }
  if (isset($_GET['info_message']) && zen_not_null($_GET['info_message'])) {
   echo htmlspecialchars($_GET['info_message']);
} else {

}
?>

<!--bof-header logo and navigation display-->
<?php
if (!isset($flag_disable_header) || !$flag_disable_header) {
?>

<div id="headerWrapper">

<!--bof-branding display-->
<div id="logoWrapper">
    
	<!--Start slideshow-->
	<script type="text/javascript">
			function startGallery() {
				var myGallery = new gallery($('myGallery'), {
					timed: true,
					showInfopane: true,
					textShowCarousel: '',
					delay: 9000
				});
			}
			window.addEvent('domready',startGallery);
		</script>
		
			<div id="myGallery">
				<div class="imageElement">
					<h3>1</h3>
					<p></p>
					<a href="#" title="open image" class="open"></a>
					<img src="../images/PonyR_Logo.pn" alt="something1" class="full" />
					<img src="images/brugges2006/1-mini.jpg" alt="something1" class="thumbnail" />
				</div>
				<div class="imageElement">
					<h3>2</h3>
					<p></p>
					<a href="#" title="open image" class="open"></a>
					<img src="images/brugges2006/2.jpg" alt="something1" class="full" />
					<img src="images/brugges2006/2-mini.jpg" alt="something1" class="thumbnail" />
				</div>
				<div class="imageElement">
					<h3>3</h3>
					<p></p>
					<a href="#" title="open image" class="open"></a>
					<img src="images/brugges2006/3.jpg" alt="something1" class="full" />
					<img src="images/brugges2006/3-mini.jpg" alt="something1" class="thumbnail" />
				</div>
			</div>
		<!--End slideshow-->
	
    <div id="taglineWrapper">
<?php
              if (HEADER_SALES_TEXT != '') {
?>
      <div id="tagline"><?php echo HEADER_SALES_TEXT;?></div>
<?php
              }
?>
<?php
              if (SHOW_BANNERS_GROUP_SET2 != '' && $banner = zen_banner_exists('dynamic', SHOW_BANNERS_GROUP_SET2)) {
                if ($banner->RecordCount() > 0) {
?>
      <div id="bannerTwo" class="banners"><?php echo zen_display_banner('static', $banner);?></div>
<?php
                }
              }
?>
    </div>
</div>
<!--eof-branding display-->

<!--bof-navigation display-->
<div id="navMainWrapper">
<div id="navMain">
    <ul class="back">	
    <li><?php echo '<a href="' . HTTP_SERVER . DIR_WS_CATALOG . '">'; ?><?php echo HEADER_TITLE_CATALOG; ?></a></li>    <li><a href="http://www.ponyrparts.com/forum">Forum</a></li>
<?php if ($_SESSION['customer_id']) { ?>
    <li><a href="<?php echo zen_href_link(FILENAME_LOGOFF, '', 'SSL'); ?>"><?php echo HEADER_TITLE_LOGOFF; ?></a></li>
    <li><a href="<?php echo zen_href_link(FILENAME_ACCOUNT, '', 'SSL'); ?>"><?php echo HEADER_TITLE_MY_ACCOUNT; ?></a></li>
<?php
      } else {
        if (STORE_STATUS == '0') {
?>
    <li><a href="<?php echo zen_href_link(FILENAME_LOGIN, '', 'SSL'); ?>"><?php echo HEADER_TITLE_LOGIN; ?></a></li>
<?php } } ?>

<?php if ($_SESSION['cart']->count_contents() != 0) { ?>
    <li><a href="<?php echo zen_href_link(FILENAME_SHOPPING_CART, '', 'NONSSL'); ?>"><?php echo HEADER_TITLE_CART_CONTENTS; ?></a></li>
    <li><a href="<?php echo zen_href_link(FILENAME_CHECKOUT_SHIPPING, '', 'SSL'); ?>"><?php echo HEADER_TITLE_CHECKOUT; ?></a></li>
<?php }?>
</ul>
</div>
<div class="navMainSearch forward"><?php require(DIR_WS_MODULES . 'sideboxes/search_header.php'); ?></div>
<br class="clearBoth" />
</div>
<!--eof-navigation display-->
<!--eof-header logo and navigation display-->

<!--bof-optional categories tabs navigation display-->

<?php /*require($template->get_template_dir('tpl_modules_categories_tabs.php',DIR_WS_TEMPLATE, $current_page_base,'templates'). '/tpl_modules_categories_tabs.php'); */?>

<!--eof-optional categories tabs navigation display-->

<!--bof-header ezpage links-->
<?php if (EZPAGES_STATUS_HEADER == '1' or (EZPAGES_STATUS_HEADER == '2' and (strstr(EXCLUDE_ADMIN_IP_FOR_MAINTENANCE, $_SERVER['REMOTE_ADDR'])))) { ?>
<?php require($template->get_template_dir('tpl_ezpages_bar_header.php',DIR_WS_TEMPLATE, $current_page_base,'templates'). '/tpl_ezpages_bar_header.php'); ?>
<?php } ?>
<!--eof-header ezpage links-->
</div>
<?php } ?>