var localTime = new Date();
function autoDetectTimeOffset(currentTime)
{
	if (typeof(currentTime) != 'string')
		var serverTime = currentTime;
	else
		var serverTime = new Date(currentTime);

	// Something wrong?
	if (!localTime.getTime() || !serverTime.getTime())
		return 0;

	// Get the difference between the two, set it up so that the sign will tell us who is ahead of who.
	var diff = Math.round((localTime.getTime() - serverTime.getTime())/3600000);

	// Make sure we are limiting this to one day's difference.
	diff %= 24;

	return diff;
}