// A simple mechanism to handle delayed validation based on keyboard entry.
// Copyright (c) 2008, Aral Balkan, All Rights Reserved.
// Released under the MIT license.
validationFunctionRefs = [];
timers = [];
function callAfterDelay(fnRef, duration){
 
	// Check if a timer for this validation function is already in effect
	// and reset it if it is.
	for (i = 0; i < validationFunctionRefs.length; i++) {
		fnToCheck = validationFunctionRefs[i];
		if (fnToCheck == fnRef){
			timer = timers[i];
			clearInterval(timer);
			timers.splice(i,1);
                        validationFunctionRefs.splice(i,1);
                        break;
		}
	}
 
	timer = setTimeout(fnRef, duration);
	timers.push(timer);
	validationFunctionRefs.push(fnRef);
 
	return timer
}