jQuery Cycle: add id/selectors to pager nav?

jQuery Cycle: add id/selectors to pager nav?

I'm am trying to do a version of this pager:
http://malsup.com/jquery/cycle/pagerHover.html

However, I need to be able to assign a unique background image to each of the numbers in the pager. I assume this means I need the js to create a unique id for each number as it builds the pager so I can target it with css, but I can't seem to figure out how to do this. 

Any help would be greatly appreciated.