Weekly Timer GUI

I need to create a GUI for a project made with WindLDR. The project mainly controls the lighting for the building using a week timer. The users to be able to , from a computer, change the times in that timer by clicking the different zones of an image of the building. I can't seem to figure out how to relate zones of my jpeg to the different parts of that timer. Any help you can give would be very appreciative.

After a cursory glance at other posts I didn't see something similar so I apologize if there has been something like this already answered.

Thanks is advance