TimerEveryTimerEvery — attaches an event handler to an "every" timer.
TimerEvery (seconds, fn)
secondsA number of seconds.
fnA function or method call.
An integer that is a timer ID number.
This method sets an every timer that that fires periodically
every number of seconds, causing the
fn function or method to execute. This method also
creates a unique, sequential ID number for the timer, appends that number to the
class's ._TimerIDs list, and returns that same timer ID
number.
Timers created using TimerAt, TimerAfter, and TimerEvery are
automatically cancelled when the Application instance is destroyed.