Parallax Background Needed for Bootstrap Site

We have a simple, one page bootstrap site and we're looking for a developer to help add a parallax background to a couple of our images on the home page. Please refer to the site here [login to view URL] for example of a parallax background. Our site is located at [login to view URL] and we're looking to make the two images that stretch across the screen parallax style. These images are indicated by "PHOTO ONE" and "PHOTO TWO". It must have the same affect as our sample site. Requirements 1. As this is an urgent request, project must be completed within 12 hours of project acceptance. So please only respond if you are available immediately. If you cannot complete within this time frame, we may close the project. 2. This is a responsive site, so it must maintain the responsiveness on all devices, which means parallax images will appear appropriately on the devices. 3. Upon completion you must let us know which files you changed/added. 4. Coding must be clean. Upon acceptance we will provide you with the site files to edit. Thanks!