// This global array holds all items that are currently in the database // Each item is a database_record object var database_records = new Array() // This global variable tracks the total number of items ordered var total_ordered = 0 // This global variable holds the personal details about the user var current_user // These global variables set the names of your pages var store_page = "TheStore.htm" var shopping_cart_page = "TheCart.htm" var personal_details_page = "PersDetail.htm" var credit_card_page = "CredCard.htm" // These global variables set the tax rate and shipping charge per item var tax_rate = 0.05 var shipping_charge = 5 // function database_record(description, number, price, quantity) // // description A description of the item. // number A number that uniquely identifies the item. // price The price of the item. // quantity The quantity of the item that the user has ordered. // // This function creates a new database_record object. function database_record(description, number, price, quantity) { this.description = description this.number = number this.price = price this.quantity = quantity } // function make_database() // // This function initializes the database_records array function make_database() { // Create the default records var record_index = 0 database_records[record_index] = new database_record("Captain Roy's Home Study Course", "0-7897-2407-3", 249.95, 0) record_index++ database_records[record_index] = new database_record("Captain Roy's Rules of the Road CD ROM", "0-7897-2452-9", 39.95, 0) record_index++ database_records[record_index] = new database_record("Captain's Roy's Home Study and Rules CD Combination", "0-7897-2129-5", 274.90, 0) record_index++ database_records[record_index] = new database_record("Rules of the Road Study Package", "0-7897-1493-0", 79.95, 0) record_index++ database_records[record_index] = new database_record("Captain Roy's Plotting Package", "0-7897-1739-5", 89.95, 0) record_index++ database_records[record_index] = new database_record("Holiday Special", "0-7897-2256-9", 244.95, 0) record_index++ database_records[record_index] = new database_record("Paul McFedries\' Windows 98 Unleashed", "0-672-31224-7", 54.99, 0) record_index++ database_records[record_index] = new database_record("Windows 98 Unleashed", "0-672-31235-2", 34.99, 0) record_index++ database_records[record_index] = new database_record("VBA for Office 2000 Unleashed", "0-672-31567-X", 39.99, 0) record_index++ database_records[record_index] = new database_record("Capt Roy Teaches Boating Safety", "0-672-31144-5", 49.99, 0) // Load the orders from the cookie load_orders() } // function load_orders() // // This function reads the order quantities from the order // cookie and loads them into the database_records array. function load_orders() { // Get the orders cookie var orders_cookie = get_cookie("orders") // If the cookie doesn't exist, return if (!orders_cookie) {return} // Split all the orders into an array var user_orders = orders_cookie.split("+") // Run through the orders for (var counter = 0; counter < user_orders.length; counter++) { // Store the quantity var order_quantity = user_orders[counter] // Update the database database_records[counter].quantity = order_quantity // Update the number of items that are in the shopping cart if (order_quantity > 0) { total_ordered++ } } } // function save_orders() // // This function saves the orders in the database_records // array to a cookie named "orders". function save_orders() { // This variable holds the string that's saved to the cookie var order_string = "" // Store the total number of records in the database var total_records = database_records.length // Run through the database array for (var counter = 0; counter < total_records; counter++) { // Add the quantity to the cookie string order_string += database_records[counter].quantity // If this isn't the last item, add the order delimiter (+) if (counter < total_records - 1) { order_string += "+" } } // Save the orders to a per-session cookie set_cookie("orders", order_string) } // function user_data(Salutation, First_Name, Last_Name, Email_Address, Company_Name, Address_1, Address_2, City, State, Postal_Code, Country) // // Salutation The salutation ("Dr.", "Miss", and so on) // First_Name The user's first name // Last_Name The user's last name // Email_Address The user's email address // Company_Name (Optional) The user's company name // Address_1 The user's street address // Address_2 (Optional) The second part of the user's street address // City The user's city // State The user's state or province // Postal_Code The user's ZIP or postal code // Country The user's country // // This function creates a new user_data object function user_data(Salutation, First_Name, Last_Name, Email_Address, Company_Name, Address_1, Address_2, City, State, Postal_Code, Country, Phone) { this.Salutation = Salutation this.First_Name = First_Name this.Last_Name = Last_Name this.Email_Address = Email_Address this.Company_Name = Company_Name this.Address_1 = Address_1 this.Address_2 = Address_2 this.City = City this.State = State this.Postal_Code = Postal_Code this.Country = Country this.Phone = Phone } // function save_personal_details(current_form) // // current_form A reference to the Form object that // contains the user's personal details. // // This function saves the data in current_form // to a cookie named "personal_details". // The cookie is a collection of pseudo-cookies: // - Each pseudo-cookie is separated with a colon (:) // - Each pseudo-cookie name and value is separated by a plus sign (+) function save_personal_details(current_form) { // This variable holds the string that's saved to the cookie var cookie_string = "" // Run through the form for (var counter = 0; counter < current_form.length; counter++) { // Is the field a Text object? if (current_form[counter].type == "text") { // If so, add the field name and value to the pseudo-cookie cookie_string += current_form[counter].name + ":" + escape(current_form[counter].value) + "&" } // Is the field a Select (single) object? else if (current_form[counter].type == "select-one") { // If so, add the field name and the text // of the selected option to the pseudo-cookie var selected_option = current_form[counter].options[current_form[counter].selectedIndex].text cookie_string += current_form[counter].name + ":" + escape(selected_option) + "&" } } // Remove the last delimiter cookie_string = cookie_string.substring(0, cookie_string.length - 1) // Save the personal_details to a temporary cookie set_cookie("personal_details", cookie_string) } // function load_personal_details() // // This function reads the personal_details cookie and // loads the data into the global current_user array. function load_personal_details() { // Create a new, empty, user_data object current_user = new user_data("", "", "", "", "", "", "", "", "", "", "", "") // Get the personal_details cookie var user_cookie = get_cookie("personal_details") // If it didn't exist, return if (!user_cookie) { return } // Split the cookie into an array of pseudo-cookies var pseudo_cookies = user_cookie.split("&") // Run through the pseudo-cookies for (var counter = 0; counter < pseudo_cookies.length; counter++) { // Split the pseudo-cookie into a name:value pair var pseudo_cookie_pair = pseudo_cookies[counter].split(":") // Store the array items var property_name = pseudo_cookie_pair[0] var property_value = pseudo_cookie_pair[1] // Update the corresponding user_data object property current_user[property_name] = unescape(property_value) } } function display_database() { var alert_string = "" for (var counter = 0; counter < database_records.length; counter++) { alert_string += database_records[counter].description + "\n" alert_string += database_records[counter].number + "\n" alert_string += database_records[counter].quantity + "\n" alert_string += database_records[counter].price + "\n\n" } alert(alert_string) }