-function update_customer($customer_id, $CustName, $cust_ref, $address, $tax_id, $curr_code, $email, $dimension_id, $dimension2_id,
- $credit_status, $payment_terms, $discount, $pymt_discount, $credit_limit, $sales_type, $notes)
+function update_customer($customer_id, $CustName, $cust_ref, $address, $tax_id, $curr_code, $email,
+ $dimension_id, $dimension2_id, $credit_status, $payment_terms, $discount, $pymt_discount,
+ $credit_limit, $sales_type, $notes, $rep_lang)