Changing a date to next year in a countdown timer

programming flash
1

I am trying to make a countdown timer and am using this code:

// first get this current year so this example
// remains valid for some time to come
currentDate = new Date();
thisYear = currentDate.getFullYear();
eventDate = new Date(thisYear, 11, 25);
eventMillisecs = eventDate.getTime();

This works great for countig down to the end of this year, but I want to modify it to countdown to a date next year 04-28-06. How can I change this to get it to work…

Thanks, Marc