Sorry for the break – I spent the past week or so frantically preparing for, and then attending, my Director’s annual off-site planning meeting. As always, it was a valuable experience – the opportunity to interact with Managers in a more relaxed setting, and to see how each of us attacks a given problem from so many different angles, is incredibly cool. Plus, I got to play golf again. 
Today I’m bringing you a quick example of how to use jQuery to check with a Service to see whether the user should be allowed to toggle the state of a given checkbox. In my example, the “Service” only allows you to check boxes labelled with a prime number. I’m sure there’s a more jQuery-approved method, but this one was simpler to figure out than .val() – I couldn’t figure out how to make that *un*check a box.