S & H extra charge for some items

[Ajeh]

More or less just this section of code:

        default:
        $show_box_weight = ' (' . $shipping_num_boxes . ' x ' . number_format($shipping_weight,2) . TEXT_SHIPPING_WEIGHT . ')';
        break;
      }
    }

// bof: Add extra charge for heavy items in cart
$chk_cart = 0;
$chk_cart += $_SESSION['cart']->in_cart_check('products_id','10');
$chk_cart += $_SESSION['cart']->in_cart_check('products_id','12');
$chk_cart += $_SESSION['cart']->in_cart_check('products_id','15');
$chk_cart += $_SESSION['cart']->in_cart_check('products_id','3736');
$extra_charge = $chk_cart * .75;
echo 'Table Extra charges $chk_cart: ' . $chk_cart . ' $extra_charge: ' . $extra_charge . '<br>';

    $this->quotes = array('id' => $this->code,
    'module' => MODULE_SHIPPING_TABLE_TEXT_TITLE . $show_box_weight,
    'methods' => array(array('id' => $this->code,
    'title' => MODULE_SHIPPING_TABLE_TEXT_WAY,
    'cost' => $extra_charge + $shipping + (MODULE_SHIPPING_TABLE_HANDLING_METHOD == 'Box' ? MODULE_SHIPPING_TABLE_HANDLING * $shipping_num_boxes : MODULE_SHIPPING_TABLE_HANDLING) ) ));

    if ($this->tax_class > 0) {