Loading spinner on "Movies" click

I’ve gotten pretty good with editing the confluence skin for my customs needs (adding in KIOSK mode and various other custom home elements…)

How simple/complex would it be to introduce a loading spinner when movies or tv shows are selected?

My library is running off a slower mysql server and it can take a good 15 seconds before anything shows up. It would be great if I could toss the loading spinner on there just to give the impression it didn’t freeze or anything.

(so default on, disable when list is populated?)

Thanks,
-aPeg