AS 1.0 to AS 2.0

programming flash
1

so i have this script in AS 1.0

TIMER = Number(TIMER)+1;
duplicateMovieClip("/otava", "otava" add TIMER, TIMER);
setProperty("otava" add TIMER, _x, _xmouse);
setProperty("otava" add TIMER, _y, _ymouse);
if (Number(TIMER)>79) {
    TIMER = 0;
}

mm… so how would it look in AS 2.0 picuse i just cant get it work :i