public static void PushReturnAddress(this HttpSessionStateBase session, ReturnAddress rAddress)
        {
            if (session["ReturnStack"] == null)
            {
                session["ReturnStack"] = new Stack <ReturnAddress>();
            }
            Stack <ReturnAddress> TempStack = (Stack <ReturnAddress>)session["ReturnStack"];

            if (TempStack.Count > 0)
            {
                if (TempStack.Peek().Controller == rAddress.Controller)
                {
                    if (TempStack.Peek().Module != rAddress.Module)
                    {
                        TempStack.Push(rAddress);
                    }
                }
                else
                {
                    TempStack.Push(rAddress);
                }
            }
            else
            {
                TempStack.Push(rAddress);
            }
        }
        public static void InsureReturnAddress(this HttpSessionStateBase session, ReturnAddress rAddress)
        {
            Stack <ReturnAddress> TempStack = new Stack <ReturnAddress>();

            TempStack.Push(rAddress);
            session["ReturnStack"] = TempStack;
        }