Added to Cart Message on Custom Button

6 0 1


I am trying to replicate a product add-on box one of our partner companies is using.  I know there are plugins for this, but we would like to avoid adding more plugins.  So far I have the layout worked out, and I have created a "+" icon where they can click to add to cart.  The visitor stays on the page when the item is added.  I would like to find a better way to do this so it is clear it was added.  Preferably, there would be a small message under the button that says, "Added to Cart".  I have seen this included in other themes.  We are currently using Debut.  Below is a screenshot of the box layout.  

I know this can be done with Ajax but I am not sure how to incorporate it, or if there is a simpler way to accomplish this.  Any suggestions would be greatly appreciated!