How to stop the waterflow?

Question

Hi,
I need to make the water coming from the shower, when shower is clicked.
And the water should stop after 5 seconds.
The code is below.
The water is flowing nicely. But I do not manage to stop it.
I added a timer, which starts when the shower is clicked. And should stop the waterflow after 5 seconds have passed.
With the lines
if (stop = true)
     break;
     trace("break");
it looks like the for loop is breaking right from the start, from the first second. But not completely, somehow 1 or 2 drops are flowing.
Without these lines nothing is happening when the time is over (5 seconds from clicking the shower). Water is just flowing.
Can someone help? How to stop the water flowing after 5 seconds and clean of the array and stage from the waterdrops?
Many thanks in advance!
import flash.display.MovieClip;
import flash.events.Event;
import flash.utils.Timer;
import flash.events.TimerEvent;
var WatertropArray: Array = new Array();
var WaterArea01: MovieClip = new WaterArea();
var WaterBorder01: MovieClip = new WaterBorder();
var timer: Timer = new Timer(5000, 1);
var stopp: Boolean;
var i: uint;
Shower.addEventListener(MouseEvent.CLICK, waterFlowStart);
function waterFlowStart(event: MouseEvent): void
                addChild(WaterArea01);
                WaterArea01.x = WaterArea00.x;
                WaterArea01.y = WaterArea00.y;
                WaterArea01.alpha = 0;
                addChild(WaterBorder01);
                WaterBorder01.x = WaterBorder00.x;
                WaterBorder01.y = WaterBorder00.y;
                WaterBorder01.alpha = 0;
                stopp = false;
                timer.addEventListener(TimerEvent.TIMER, waterFlowEnd);
                timer.start();
                addWaterdrops();
                Shower.removeEventListener(MouseEvent.CLICK, waterFlowStart);
function addWaterdrops(): void
                for(var i: uint = 0; i < 100; i++)
                               var waterDrop: MovieClip = new Waterdrop();
                               addChild(waterDrop);
                               waterDrop.x = Math.round(Math.random() * stage.stageWidth / 1.5);
                               waterDrop.y = Math.round(Math.random() * stage.stageHeight / 3);
                               waterDrop.alpha = 0;
                               waterDrop.rotation = -12;
                               WatertropArray.push(waterDrop);
                               trace("waterdrops added");
                               moveWaterdrops();
function moveWaterdrops(): void
                waterDrop00.addEventListener(Event.ENTER_FRAME, waterFlow);
function waterFlow(event: Event): void
                for(var i: uint = 0; i < WatertropArray.length; i++)
                               WatertropArray[i].y += 8;
                               WatertropArray[i].x += 5;
                               //trace(i);
                               if(WatertropArray[i].hitTestObject(WaterArea01))
                                               WatertropArray[i].alpha = Math.random();
                                               WatertropArray[i].scaleX = Math.random();
                                               WatertropArray[i].scaleY = WatertropArray[i].scaleX;
                               if(WatertropArray[i].hitTestObject(WaterBorder01) || WatertropArray[i].x > stage.stageWidth || WatertropArray[i].y > stage.stageHeight / 2)
                                               WatertropArray[i].x = Math.round(Math.random() * stage.stageWidth / 1.5);
                                               WatertropArray[i].y = Math.round(Math.random() * stage.stageHeight / 3);
                                               WatertropArray[i].alpha = 0;
                               if(stopp = true)
                                               break;
                                               trace("break");
function waterFlowEnd(event: TimerEvent): void
                trace("TIME OVER");
                stopp = true;
                stoppTrue();
function stoppTrue(): void
                for(var i: uint = WatertropArray.length; i > WatertropArray.length; i--)
                               remove(i);
function remove(idx: int)
                removeChild(WatertropArray[idx]);
                WatertropArray.splice(idx, 1);
                trace("REMOVED");
                removeChild(waterDrop00);
                trace(i);

Answer 1

thanks again, kglad.
changed the for-loop and it is reaching now the last functions as well.
but there is still a but  ... an error message.
function waterFlowEnd(event: TimerEvent): void
trace("TIME OVER");
stopp = true;
stoppTrue();                                                       // line 106
function stoppTrue(): void
for(var i: uint = WatertropArray.length-1; i >= 0; i--)
trace("stoppTrue");
remove(i);                                                         // line 115                                                    
function remove(idx: int)
removeChild(WatertropArray[idx]);                   // line 123
WatertropArray.splice(idx, 1);
trace("REMOVED");
//removeChild(waterDrop00);
trace(i);
and the output panel gives the following (tested with 5 water drops, 5 items in array):
TIME OVER
stoppTrue
REMOVED
0
stoppTrue
REMOVED
0
stoppTrue
REMOVED
0
stoppTrue
REMOVED
0
stoppTrue
REMOVED
0
stoppTrue
TypeError: Error #2007: Parameter child must be non-null.
at flash.display::DisplayObjectContainer/removeChild()
at TitavannisinglisekeelneAS3_fla::MainTimeline/remove()[TitavannisinglisekeelneAS3_fla.Main Timeline::frame1:123]
at TitavannisinglisekeelneAS3_fla::MainTimeline/stoppTrue()[TitavannisinglisekeelneAS3_fla.M ainTimeline::frame1:115]
at TitavannisinglisekeelneAS3_fla::MainTimeline/waterFlowEnd()[TitavannisinglisekeelneAS3_fl a.MainTimeline::frame1:106]
at flash.utils::Timer/_timerDispatch()
at flash.utils::Timer/tick()
What is that error message trying to tell me?