Create a popup window for an ecommerce template

We are looking for someone to write the HTML and JavaScript to produce a popup on an Opencart template. We will provide you with a JSON web api to look up product details when the user mouses over. The end result to be some JavaScript that: - attaches events to all on screen products to detect the mouse over, - looks up the products detail, - then builds and a appends a series of HTML elements to the doc to make the popup appear. You will also be expected to write the CSS to style the popup. This is a small simple project, so the expected budget is not to exceed $100.