Parallax image scroll help needed

Parallax image scroll help needed

Hello,

I'm using Pederan's Parallax ImageScroll (https://github.com/pederan/Parallax-ImageScroll) but having trouble getting it working, not knowing anything about Javascript or JQuery.

Here's the page: http://www.chrisayresdesign.com/elmley

I've entered the 'dataimage' value as the path to the image but it's not there (you can see the big white space at the top). Can anyone tell me where I'm going wrong, please?

Thank you.