One minute countdown w/o decimals

i want a countdown timer that goes from 60 to 0, im using this code now. but i get a bunch of decimals too, how do i remove them? is there any better code i can use?
also when the timer reaches 0 i want to jump to another frame i’ve been experimenting a bit but i cant get it to work…

var countTotal = 60;

_root.onEnterFrame=function() {
now = getTimer()/1000;
_root.timeLeft.text = countTotal - now;