/*=======================================================================*\
|| #################### //-- SCRIPT INFO --// ########################## ||
|| #	Script name: pop-up image in product listing install 
|| #	Contribution: pop-image in product listing
|| #	Version: 1.0
|| #	Date: 22 January 2005
|| # 	Coded and released in reply to this thread:
|| #	http://forums.oscommerce.com/index.php?showtopic=132112
|| # ------------------------------------------------------------------ # ||
|| #################### //-- COPYRIGHT INFO --// ######################## ||
|| #	Copyright (C) 2005 Bobby Easland								# ||
|| #	Internet moniker: Chemo											# ||	
|| #	Contact: chemo@mesoimpact.com									# ||
|| #	Commercial Site: http://gigabyte-hosting.com/					# ||
|| #	GPL Dev Server: http://mesoimpact.com/							# ||
|| #																	# ||
|| #	This script is free software; you can redistribute it and/or	# ||
|| #	modify it under the terms of the GNU General Public License		# ||
|| #	as published by the Free Software Foundation; either version 2	# ||
|| #	of the License, or (at your option) any later version.			# ||
|| #																	# ||
|| #	This script is distributed in the hope that it will be useful,	# ||
|| #	but WITHOUT ANY WARRANTY; without even the implied warranty of	# ||
|| #	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the	# ||
|| #	GNU General Public License for more details.					# ||
|| #																	# ||
|| #	Script is intended to be used with:								# ||
|| #	osCommerce, Open Source E-Commerce Solutions					# ||
|| #	http://www.oscommerce.com										# ||
|| #	Copyright (c) 2003 osCommerce									# ||
|| ###################################################################### ||
\*========================================================================*/

<======== INSTALL DIRECTIONS ========>
STEP 1

In index.php paste this code in your document head:

=======================================================
	
<script language="javascript"><!--
function popupWindow(url) {
  window.open(url,'popupWindow','toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=yes,copyhistory=no,width=100,height=100,screenX=150,screenY=150,top=150,left=150')
}
//--></script>

=======================================================

STEP 2

In includes/modules/product_listing.php find this code:
=======================================================

          case 'PRODUCT_LIST_IMAGE':
            $lc_align = 'center';
            if (isset($HTTP_GET_VARS['manufacturers_id'])) {
              $lc_text = '<a href="' . tep_href_link(FILENAME_PRODUCT_INFO, 'manufacturers_id=' . $HTTP_GET_VARS['manufacturers_id'] . '&products_id=' . $listing['products_id']) . '">' . tep_image(DIR_WS_IMAGES . $listing['products_image'], $listing['products_name'], SMALL_IMAGE_WIDTH, SMALL_IMAGE_HEIGHT) . '</a>';
            } else {
              $lc_text = '&nbsp;<a href="' . tep_href_link(FILENAME_PRODUCT_INFO, ($cPath ? 'cPath=' . $cPath . '&' : '') . 'products_id=' . $listing['products_id']) . '">' . tep_image(DIR_WS_IMAGES . $listing['products_image'], $listing['products_name'], SMALL_IMAGE_WIDTH, SMALL_IMAGE_HEIGHT) . '</a>&nbsp;';
            }
            break;

=======================================================

and replace with this code:

=======================================================

          case 'PRODUCT_LIST_IMAGE':
            $lc_align = 'center';
            if (isset($HTTP_GET_VARS['manufacturers_id'])) {
              $lc_text = '<a href="' . tep_href_link(FILENAME_PRODUCT_INFO, 'manufacturers_id=' . $HTTP_GET_VARS['manufacturers_id'] . '&products_id=' . $listing['products_id']) . '">' . tep_image(DIR_WS_IMAGES . $listing['products_image'], $listing['products_name'], SMALL_IMAGE_WIDTH, SMALL_IMAGE_HEIGHT) . '</a>';
            } else {
              $lc_text = '
				<script language="javascript"><!--
				document.write(\'<a href="javascript:popupWindow(\\\'' . tep_href_link(FILENAME_POPUP_IMAGE, 'pID=' . $listing['products_id']) . '\\\')">' . tep_image(DIR_WS_IMAGES . $listing['products_image'], addslashes($listing['products_name']), SMALL_IMAGE_WIDTH, SMALL_IMAGE_HEIGHT, 'hspace="5" vspace="5"') . '<br>Click to enlarge</a>\');
				//--></script>
				<noscript>
				<a href="' . tep_href_link(DIR_WS_IMAGES . $listing['products_image']) . '" target="_blank">' . tep_image(DIR_WS_IMAGES . $listing['products_image'], $listing['products_name'], SMALL_IMAGE_WIDTH, SMALL_IMAGE_HEIGHT, 'hspace="5" vspace="5"') . '<br>' . TEXT_CLICK_TO_ENLARGE . '</a>
				</noscript>';
            }
            break;

=======================================================

STEP 3

Save both files.  Wasn't that easy?

- Chemo