AJAX Add to Cart module ajaxifies the add to cart operation. The updated cart will be displayed without page refresh and a popup message will be shown after you add an item to cart. This module provides two blocks, first the shopping cart block that provides details of the product currently present in the cart, and the other is a shopping cart teaser that provides the total number of items
and the total amount including tax. You can customize the look of the blocks using its template files.