Ajax Add to Cart is a Drupal Commerce module.
About the module:
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. The module also provides other customizations like showing the product image in shopping cart. You can further customize the look of the blocks using its template files.
The sandbox project of Ajax Add to Cart module can be found here:
Git repository link:
git clone --recursive --branch master email@example.com:sandbox/subhojit777/1844396.git ajax_add_to_cart
This a Drupal 7 module for Drupal Commerce.
I have ported Ajax Pic Preview module from Drupal 6 to Drupal 7
It is still in sandbox mode, soon it will be released as a full project.