What does it do:
Adds the ability to add an item to cart by direct link (GET) rather than needing a form post (POST).
Also adds alternative methods of adding by product_id, sku, or model.
Supports options as well (See examples below)
* You will...
Easily change the color and text of the "Add to Cart" buttons in your theme! Options to change the button text and top/bottom gradient colors are given individually for various situations: when the product is added to the cart, when the product is out of stock, and when the product has options...