function addToBasket(productID, variationID, quantity) {
    StoreWebService.AddItemToBasket(productId, variationId, quantity,
        function(result) {
            // Update all basket dependent controls
            alert(quantity + " items added to your basket");
        }, function(error) {
            alert("There was a problem adding to your basket: " + error.get_message());
        });
    }