After a bit of play, I've gotten “if statements” and the sort to work. In short, the setInterval function creates it's own “little world” within Flash, and only the code within setInterval will update at the interval you set (in this case, every second - hence the variable 'timer' is increased by 1 every second). In order to use this timer for something more than just numbers increasing, you'll need to add extra code into the setInterval function. Growing on Awesty's code, you could do this (NOTE: I'm counting up, not down):