Timers
Timers can be set to invoke a handler periodically. When the handler is invoked, the parms will contain the name of the handler.
context.Handlers.RegisterTimerHandler(OnTimer, timerName,
		  Milliseconds)
	 
context.Handlers.UnregisterTimerHandler(timerName)
	 
String parms.GetName(): This is the name of timer
		available to OnTimer