if (int.TryParse(RequestContent[4], out BookID) && (Book = Store.GetBook(BookID)) != null)
                                {



                                    //vsetko ok
                                    if (RequestContent[2] == "ShoppingCart")
                                    {
                                        if (RequestContent[3] == "Add")
                                        {
                                            try
                                            {
                                                if (Customer.ShoppingCart == null)
                                                {
                                                    //Console.WriteLine("Creating shopping cart for username with id: {0}", Customer.Id);
                                                    Customer.ShoppingCart = new ShoppingCart();
                                                }
                                                Customer.AddToCart(Book.Id);
                                                View.DisplayCart(Customer, Store.GetBooks());
                                                return;

                                            }
                                            catch (Exception)
                                            {
                                                Console.WriteLine("pes");
                                            }
                                        }
                                        else if (RequestContent[3] == "Remove")
                                        {
                                            if (Customer.RemoveFromCart(Book.Id))
                                            {
                                                View.DisplayCart(Customer, Store.GetBooks());
                                                return;
                                            }

                                        }

                                    }
                                    //book detail
                                    else if (RequestContent[2] == "Books" && RequestContent[3] == "Detail")
                                    {
                                        View.DisplayBook(Customer, Book);
                                        return;
                                    }

                                }