I apologize - I'm not very familar with coding.
Is this the correct node?
If so, where should I insert the "if" clause
//start node
function DefineRules() {
$this->Discounts = array();
$this->Charges = array();
$this->Tax = array();
$this->Shipping = array();
$this->ShippingIsTaxed = false;
//Discounts
$this->Discounts[] = new WA_eCart_Rule(urldecode("CouponOnTotal"), true, "WAEC_WA_Store_Cart_CouponOnTotal");
//Charges
//Tax
$this->Tax[] = new WA_eCart_Rule(urldecode("Sales%20Tax"), true, "WAEC_WA_Store_Cart_SalesTax");
//Shipping
$this->Shipping[] = new WA_eCart_Rule(urldecode("USPS%20Shipping"), true, "WAEC_WA_Store_Cart_USPSShipping");
$this->Shipping[] = new WA_eCart_Rule(urldecode("FedEx%20Shipping"), true, "WAEC_WA_Store_Cart_FedExShipping");
$this->Shipping[] = new WA_eCart_Rule(urldecode("UPS%20Shipping"), true, "WAEC_WA_Store_Cart_UPSShipping");
}
//end node