Pull from master

app/controllers/origami/payments_controller.rb

@@ -241,7 +241,7 @@ class Origami::PaymentsController < BaseOrigamiController
     sale_id = params[:sale_id]
     @cashier_type   = params[:type]
     if path.include? ("credit_payment")
-      @sale_payment = SalePayment.get_credit_total_left(sale_id)
+      @sale_payment = SalePayment.get_credit_amount_due_left(sale_id)
     end
     
     @member_discount = MembershipSetting.find_by_discount(1)
@@ -271,6 +271,20 @@ class Origami::PaymentsController < BaseOrigamiController
       if !@lookup_pdf.nil?
         @pdf_view = @lookup_pdf.value
       end
+
+      #for changable on/off
+      @changable_tax = true
+      lookup_changable_tax = Lookup.collection_of('changable_tax')
+      if !lookup_changable_tax.empty?
+        lookup_changable_tax.each do |changable_tax|
+          if changable_tax[0].downcase == "change" 
+            if changable_tax[1] == '0' 
+              @changable_tax = false
+            end
+          end
+        end
+      end
+    
       @shop        =  shop_detail  #show shop info 
 
       @customer_lists = Customer.where("customer_id = 'CUS-000000000001' or customer_id = 'CUS-000000000002'")