Basically need to capture the information that was originally posted, could then store it in a session value or if on this extra page there is a submit button there also, then the posted data could be again stored as post data that can then be processed again. Otherwise would capture the posted data as session data that then could be turned into posted data to be processed by includes/modules/YOUR_TEMPLATE/attributes.php. There is code there that re-selects the options previously chosen when the data is again available for processing.
Take a look at code sections such as:
Code:
if (!empty($_POST['id']) && is_array($_POST['id'])) {
$selected_attribute= false;
foreach ($_POST['id'] as $key => $value) {
if (($key == $products_options_names->fields['products_options_id'] and $value == $products_options->fields['products_options_values_id'])) {
// zen_get_products_name($_POST['products_id']) .
$selected_attribute = true;
break;
}
}
} else {
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