Dear vlad,
Please go to default_products.php file ( yoursite\components\com_virtuemart\views\virtuemart\tmpl\default_products.php ) and find:
<?php // Product Image
if ($product->images) {
echo JHTML::_ ( 'link', JRoute::_ ( 'index.php?option=com_virtuemart&view=productdetails&virtuemart_product_id=' . $product->virtuemart_product_id . '&virtuemart_category_id=' . $product->virtuemart_category_id ), $product->images[0]->displayMediaThumb( 'class="featuredProductImage" border="0"',true,'class="modal"' ) );
}
?>
=>
edit class="modal" to:
<?php // Product Image
if ($product->images) {
echo JHTML::_ ( 'link', JRoute::_ ( 'index.php?option=com_virtuemart&view=productdetails&virtuemart_product_id=' . $product->virtuemart_product_id . '&virtuemart_category_id=' . $product->virtuemart_category_id ), $product->images[0]->displayMediaThumb( 'class="featuredProductImage" border="0"',true,'data-rel="prettyPhoto"' ) );
}
?>
Thanks
