I had a bit of fiddling around, and I think I might not have been clear with my request.
The footer needs to remain at the bottom of the page, but it does not always need to show. What happens at the moment is that when I have a short page, the footer moves up and leaves white space below the footer. I do not want this to happen.
On short page the footer should remain fixed to the bottom of the page.
I have been looking at this page: http://matthewjamestaylor.com/blog/keeping-footers-at-the-bottom-of-the-page
I am not quite getting the change I am looking for.