Помощь с модулем вывода товаров Vtem VirtueMart scroller - [VM1] Модификации и хаки

<?php
if( !defined( '_VALID_MOS' ) && !defined( '_JEXEC' ) ) die( 'Direct Access to '.basename(__FILE__).' is not allowed.' );
/**
* @Copyright Copyright (C) 2010 VTEM . All rights reserved.
* @license GNU/GPL http://www.gnu.org/copyleft/gpl.html
* @link     	http://www.vtem.net
**/

global $mosConfig_absolute_path;
// Load the VirtueMart main parse code
if( file_exists(dirname(__FILE__).'/../../components/com_virtuemart/virtuemart_parser.php' )) {
	require_once( dirname(__FILE__).'/../../components/com_virtuemart/virtuemart_parser.php' );
} else {
	require_once( dirname(__FILE__).'/../components/com_virtuemart/virtuemart_parser.php' );
}

$max_items = $params->get( 'max_items', 8 ); //maximum number of items to display
$category_id = $params->get( 'category_id', null ); // Display products from this category only
$display_style = $params->get( 'display_style', "horizontal" ); // Display Style
$nav_style = $params->get( 'nav_style', "style1" ); // Display Style
$show_price = (bool)$params->get( 'show_price', 1 ); // Display the Product Price?
$show_addtocart = (bool)$params->get( 'show_addtocart', 1 ); // Display the "Add-to-Cart" Link?
$image_size    = $params->get( 'image_size', 1 );
$image_width    = $params->get( 'image_width', 150 );
$image_height    = $params->get( 'image_height', 100 );
$background    = $params->get( 'background', 1 );
$loadscript    = $params->get( 'loadscript', 1 );
$scroller_id   = $params->get( 'moduleID', 'VtemScroller1' );
$module_width   = $params->get('module_width', 500);
$module_height  = $params->get('module_height', 250);
$slide_size     = $params->get('slide_size', 200);
$slide_interval = $params->get('slide_interval', 3000);
$scrollbar      = 1; /* 0: hide, 1: show, currently only show supported*/
$autoplay       = $params->get('autoplay', 1)? 'true' : 'false';
$feature       = $params->get('feature', 1)? "AND #__{vm}_product.product_special='Y' \n" : " ";

        $scrollarea_size   = ($scrollbar)? 20 : 0;
		$scrollarea_width  = $module_width - 20;
		$scrollarea_height = $scrollarea_size;
		$scrollbar_width   = $scrollarea_width - 72;
		$scrollbar_height  = $scrollarea_height;
		$panel_width       = $module_width - 10;
		$panel_height      = $module_height - $scrollarea_size - 8;
		$slide_width       = $slide_size < $panel_width ? $slide_size : $panel_width;
		$knob_offset       = 0;
        if ($display_style == "vertical"){
		$scrollarea_size   = ($scrollbar)? 25 : 0;
		$scrollarea_width  = $scrollarea_size - 1;
		$scrollarea_height = $module_height - 20;
		$scrollbar_width   = $scrollarea_width;
		$scrollbar_height  = $scrollarea_height-75;
		$panel_width       = $module_width - $scrollarea_size;
		$panel_height      = $module_height - 10;
		$slide_width       = $panel_width;
		}
        $css_scrollarea_width  = 'width: ' . $scrollarea_width . 'px;';
        $css_scrollarea_height = 'height: ' . $scrollarea_height . 'px;';
        $css_scrollbar_width   = 'width: ' . $scrollbar_width . 'px;';
        $css_scrollbar_height  = 'height: ' . $scrollbar_height . 'px;';
        $css_slide_width       = 'width: ' . $slide_width . 'px;';
        if ($display_style == "vertical") $css_slide_height = 'height: ' . $slide_size . 'px;'; /* only needed for vertical layout */
        $css_module_width      = 'width: ' . $module_width . 'px;';
        $css_module_height     = 'height: ' . $module_height . 'px;';
        $css_panel_width       = 'width: ' . $panel_width . 'px;';
        $css_panel_height      = 'height: ' . $panel_height . 'px;';
		$css_total_panel_width = 'width: ' . ($slide_width * $max_items). 'px;'; /* only needed for horizontal layout */
		
		switch ($params->get( 'order' ))
		{
			case 'rnd':
				$ordering		= 'ORDER BY RAND()';
				break;
			case 'name':
				$ordering		= 'ORDER BY #__{vm}_product.product_name ASC';
				break;
			case 'c_dsc':
			default:
				$ordering		= 'ORDER BY #__{vm}_product.product_id DESC';
				break;
		}

require_once ( CLASSPATH. 'ps_product.php');
$ps_product = new ps_product;
$db = new ps_DB;

if ( $category_id ) {
	// BEGIN - MultiCategory Display - deneb
	$cat_ids = explode(",",$category_id);
	if (count($cat_ids) > 1){
		$multi_cats = 1;
	}
	// END - MultiCategory Display - deneb

	$q  = "SELECT DISTINCT product_sku FROM #__{vm}_product, #__{vm}_product_category_xref, #__{vm}_category WHERE \n";
	$q .= "(#__{vm}_product.product_parent_id='' OR #__{vm}_product.product_parent_id='0') \n";
	$q .= "AND #__{vm}_product.product_id=#__{vm}_product_category_xref.product_id \n";
	$q .= "AND #__{vm}_category.category_id=#__{vm}_product_category_xref.category_id \n";
	// BEGIN - MultiCategory Display - deneb
	if ($multi_cats){
		$i = 1;
		$q .= "AND (";
		foreach ($cat_ids as $cat_id){
			if ($i == count($cat_ids)){
				$q .= "(#__{vm}_category.category_id='$cat_id')";
			} else {
				$q .= "(#__{vm}_category.category_id='$cat_id') OR \n";
			}
			$i++;
		}
		$q .= ")  \n";
	} else {
		$q .= "AND #__{vm}_category.category_id='$category_id' \n";
	}
	// END - MultiCategory Display - deneb
	$q .= "AND #__{vm}_product.product_publish='Y' \n" .$feature;
	//$q .= "AND #__{vm}_product.product_special='Y' \n";
	if( CHECK_STOCK && PSHOP_SHOW_OUT_OF_STOCK_PRODUCTS != "1") {
		$q .= " AND product_in_stock > 0 \n";
	}
	$q .= $ordering. " LIMIT 0, $max_items";
}
else {
	$q  = "SELECT DISTINCT product_sku FROM #__{vm}_product WHERE ";
	$q .= "(#__{vm}_product.product_parent_id='' OR #__{vm}_product.product_parent_id='0') AND vendor_id='".$_SESSION['ps_vendor_id']."' ";
	$q .= "AND #__{vm}_product.product_publish='Y' " .$feature;
	//$q .= "AND #__{vm}_product.product_special='Y' ";
	if( CHECK_STOCK && PSHOP_SHOW_OUT_OF_STOCK_PRODUCTS != "1") {
		$q .= " AND product_in_stock > 0 ";
	}
	$q .= $ordering. " LIMIT 0, $max_items";
}
$db->query($q);
	?>
<style type="text/css">
<?php if($image_size == 1){
echo ".vtem-scroller div.panel div.slide img{width:".$image_width."px !important;height:".$image_height."px !important;margin:0;}";
}
if($background == 1){
?>
.vtem-scroller{
background:#fff url(modules/mod_vtem_virtuemart_scroller/common/images/module_bg.gif) left bottom repeat-x;
-moz-border-radius:5px;
-webkit-border-radius:5px;
border-radius:5px;
border:1px solid #e5e5e5;
behavior:url(modules/mod_vtem_virtuemart_scroller/common/rounded.htc);
position:relative;
z-index:10;
}
<?php }?>
.vtem_horizontal_<?php echo $nav_style;?>{
background:url(modules/mod_vtem_virtuemart_scroller/common/images/arrow_left_<?php echo $nav_style;?>.gif) no-repeat;
}
.vtem_horizontal_<?php echo $nav_style;?> .vtem_scrollarrow{
background:url(modules/mod_vtem_virtuemart_scroller/common/images/arrow_right_<?php echo $nav_style;?>.gif) right top no-repeat;
height:20px;
}
.vtem_horizontal_<?php echo $nav_style;?> .vtemscrollbar{
background:url(modules/mod_vtem_virtuemart_scroller/common/images/arrow_mid_<?php echo $nav_style;?>.gif) right top repeat-x;
}
.vtem_vertical_<?php echo $nav_style;?>{
background:url(modules/mod_vtem_virtuemart_scroller/common/images/varrow_left_<?php echo $nav_style;?>.gif) no-repeat;
float:right;
margin:10px 0;
padding:0;
}
.vtem_vertical_<?php echo $nav_style;?> .vtem_scrollarrow{
background:url(modules/mod_vtem_virtuemart_scroller/common/images/varrow_right_<?php echo $nav_style;?>.gif) left bottom no-repeat;
padding:0;
<?php echo $css_scrollarea_height;?>
}
.vtem_vertical_<?php echo $nav_style;?> .vtemscrollbar{
background:url(modules/mod_vtem_virtuemart_scroller/common/images/varrow_mid_<?php echo $nav_style;?>.gif) left top repeat-y;
margin:10px 18px 0 0 !important;
_margin:10px 0 0 0 !important;
padding:0 !important;
}
</style>
<div id="<?php echo $scroller_id ?>" class="vtem-scroller <?php echo $display_style;?>" style=" <?php echo $css_module_width . $css_module_height;?>">
<div class="panel" style=" <?php echo $css_panel_width . $css_panel_height;?>">
	<?php
	$i = 0;
	while($db->next_record() ){
		if( $display_style == "vertical" ) {
			echo "<div class=\"slide\" style='".$css_slide_width . $css_slide_height."' align=\"center\">";
			$ps_product->show_snapshot($db->f("product_sku"), $show_price, $show_addtocart);
			echo "</div>\n";
		}
		elseif( $display_style== "horizontal" ) {
			if( $i == 0 )
			echo "<div style='".$css_total_panel_width."'>";
			echo "<div class=\"slide\" style='".$css_slide_width."' align=\"center\">";
			$ps_product->show_snapshot($db->f("product_sku"), $show_price, $show_addtocart);
			echo "</div>\n";
			if( ($i+1) == $db->num_rows() )
			echo "</div>\n";
		}
		$i++;
	}
?>
</div>
<?php if ($scrollbar) : ?>
		<div class="vtem_scrollarea vtem_<?php echo $display_style.'_'.$nav_style;?>" style=" <?php echo $css_scrollarea_width . $css_scrollarea_height;?>">
		  <div class="vtem_scrollarrow">
			<div class="back"></div>
			<div class="vtemscrollbar" style="<?php echo $css_scrollbar_width . $css_scrollbar_height ?>">
				<div class="scrollknob scrollknob-size">
				  <div class="scrollknob_right">
				    <div class="scrollknob_mid">
					</div>
				  </div>
				</div>
			</div>
			<div class="forward"></div>
		  </div>
		</div>
		<?php endif; ?>
<div style="clear:both"></div>
</div>
<?php
if($loadscript == 1){
echo '<script src="media/system/js/mootools.js" type="text/javascript"></script>';
}
$document =& JFactory::getDocument();
$javascript            = "new VTEMscroller('" . $scroller_id . "', { mode: '" . $display_style . "', slideInterval: " . $slide_interval . ", autoplay: " . $autoplay . ", knobOffset: " . $knob_offset . " });";
$document->addStyleSheet('modules/mod_vtem_virtuemart_scroller/common/style.css');
if($loadscript == 1){
$document->addScript('media/system/js/mootools.js');
}
$document->addScript('modules/mod_vtem_virtuemart_scroller/common/vtem_scroller.js');
echo "<script type=\"text/javascript\">\n// <!--\n$javascript\n// -->\n</script>\n";
?>