You can try using scheduleAfter() or having the page script repeat every so many minutes, seconds, etc. I never checked until now, but there is a limit on the page repeat to a maximum of every 5 minutes. The documentation for scheduleAfter does not specify a maximum time amount; but I'm sure there is a limit somewhere. You would have to test out how many milliseconds you can specify.
You can hide almost anything until you have to put the drywall up!
