Trying to remove child with timer

Question

Would the following code be correct and if not can someone assist me in making it work.  Thanks in advance.
var fw:Fireworks = new Fireworks(590,300);
addChild(fw);
var t:Timer = new Timer(10000, 0);
t.addEventListener(TimerEvent.TIMER, onTimer);
t.start();
function onTimer(evt:TimerEvent):void {
       var i:int = 0;  i++
       removeChild("fw");

Answer 1

var fw:Fireworks = new Fireworks(590,300);
addChild(fw);
var t:Timer = new Timer(10000, 0);
t.addEventListener(TimerEvent.TIMER, onTimer);
t.start();
function onTimer(evt:TimerEvent):void {
       var i:int = 0;  i++
       removeChild("fw");
       t.removeEventListener(TimerEvent.TIMER,onTimer);