[Mnilionic]

Для клавеши [A]

var keyListener:Object = new Object();
keyListener.onKeyDown = down;
keyListener.onKeyUp = up;
Key.addListener(keyListener);

var downs = 0;
var ups = 0;
var timer;

function down() {
	if (Key.getCode() == 65) {
		downs++;
		clearInterval(timer);
		if (downs == 2 && ups == 1) {
			clear(); done();
		} else timer = setInterval(clear, 600);
	}
}
function up() {
	if (Key.getCode() == 65) ups = downs;
}
function clear() {
	clearInterval(timer);
	ups = 0; downs = 0;
}
function done() {
	trace('ok');
}