How to make it start explode automatically instead of clicking on the button "Explode

Hi,

How to make it start explode automatically instead of clicking on the button “Explode Pixels” manually?

What kind of modifications required in such example codes I download to work automatically?

The following is the code:

import gs.TweenMax;
import gs.easing.*;

stage.align = StageAlign.TOP_LEFT;
stage.scaleMode = StageScaleMode.NO_SCALE;

var pixelContainer:MovieClip = new MovieClip();
var glow:GlowFilter = new GlowFilter(0xFFFF00, 1, 10, 10,5,2);
var animating:Boolean=false;
var pixelBMP:BitmapData;

var i:int = 0;
var j:int = 0;

var xArray:Array = new Array();
var yArray:Array = new Array();


addChild(pixelContainer)
pixelContainer.x=mcLogo.x;
pixelContainer.y=mcLogo.y;

pixelBMP=new BitmapData(mcLogo.width,mcLogo.height,true,0x000000)
pixelBMP.draw(mcLogo)

for(i = 0; i<mcLogo.height; i+=2) 
    for(j = 0; j<mcLogo.width; j+=2) {
    if(pixelBMP.getPixel(j, i)>0)
    {
        glow.color = pixelBMP.getPixel(j, i);
        var pixel_mc:myPixel = new myPixel()
        pixel_mc.setUpPixel(new BitmapData(2, 2, false, pixelBMP.getPixel(j, i)), glow)
        pixel_mc.y = i;
        pixel_mc.x = j;
        xArray.push(j);
        yArray.push(i);

        pixelContainer.addChild(pixel_mc);
        pixelContainer.visible=false;
        
    }
    }
function initbutton()
{
    btn_mc.buttonMode=true;
    btn_mc.mouseChildren=false;
    btn_mc.addEventListener(MouseEvent.CLICK, clickHandler);
    function clickHandler(e:MouseEvent) {
            if (animating==false) {
                explode();
                animating = true;
                btn_mc.gotoAndStop(2);
            }
            else {
                
                implode()
                btn_mc.gotoAndStop(1);
            }
            }
}
initbutton();


function explode() {
    pixelContainer.alpha=1;
            mcLogo.visible = false;
            setChildIndex(mcLogo, numChildren - 1)
            setChildIndex(btn_mc,numChildren-1)
            pixelContainer.visible = true;
            
            for(var i:int = 0; i<pixelContainer.numChildren; i++) {
                var pixel_mc:myPixel = myPixel(pixelContainer.getChildAt(i));
                pixel_mc.visible = true;
                var xdest:int = Math.random()*(stage.stageWidth+300)-300;
                var ydest:int = Math.random()*(stage.stageHeight+300)-300;
                
            
                TweenMax.to(pixel_mc,14,{x:xdest,y:ydest,ease:Circ.easeOut});
                
            }
}

function implode()
{
    for(var i:int = 0; i<pixelContainer.numChildren; i++) {
    var pixel_mc:myPixel = myPixel(pixelContainer.getChildAt(i));
    pixelContainer.visible=true;
    TweenMax.to(pixel_mc,3,{y:yArray*,x:xArray*,ease:Strong.easeIn,onComplete:smoothit});
    }
}
function smoothit()
{
    mcLogo.visible=true;
    TweenMax.to(pixelContainer,1,{alpha:0,onComplete:function(){pixelContainer.visible=false; mcLogo.visible=true; animating = false;}})
}