Create Image Commenting Script

We are in need of a talented freelancer to create an image commenting script. One where an image is displayed, and a user can add comments to specific locations on that image. The location of the comment helps to clarify to what part of the image that comment applies. A video demonstrating what we need done can be found here: [login to view URL] The final product should function exactly like what you see within the video. The program front-end should use javascript whenever possible and the back-end needs to be written in PHP and utilize a MySQL database for storing the comments and their associated replies.