/** reset all Cart totals */
private static function reset_totals()
{
self::$total = 0;
self::$cart_contents_total = 0;
self::$cart_contents_total_ex_tax = 0;
self::$cart_contents_weight = 0;
self::$cart_contents_count = 0;
self::$shipping_tax_total = 0;
self::$subtotal = 0;
self::$subtotal_ex_tax = 0;
self::$discount_total = 0;
self::$shipping_total = 0;
self::$cart_dl_count = 0;
self::$cart_contents_total_ex_dl = 0;
/* for table rate shipping */
self::$tax->init_tax();
self::$price_per_tax_class_ex_tax = array();
/* currently used with norway */
fflcommerce_shipping::reset_shipping();
}