I have a function that is supposed to restart my entire game, but when it loops back around, it breaks. How do I fix this within the restart function?

Question

basically, I have a function that is supposed to go back to the init() function, where the game starts over, but for some reason, the game decides to ignore everything that was created the first time around and ignore the removeChild() parts of the restart button.

I've had to resort to fscommand("quit"); instead, as the game just breaks apart.

is there ANY way of making the intervals, images and (image) buttons work properly from this?

here's the init section:

private function init(e:Event = null):void
        {

            gameBackground.y = -600; //start position for scrolling animation
            gameLogo.x = (stage.stageWidth/2 - gameLogo.width/2 + 50);
            gameLogo.y = 55;
            gameLogo.scaleX = 0.8;
            gameLogo.scaleY = 0.8;

            startBtn.scaleX = 0.4;
            startBtn.scaleY = 0.4;

            startBtn.x = (stage.stageWidth/2 + 125);
            startBtn.y = 500;
            player.x = (stage.stageWidth - player.width) / 2;

            player.y = startBtn.y - 10;
            addChild(gameBackground);
            addChild(player);
            addChild(gameLogo);
            addChild(startBtn);
            addEventListener(MouseEvent.MOUSE_OVER, buttonHover);
            addEventListener(MouseEvent.MOUSE_OUT, buttonHoverOff);
            addEventListener(MouseEvent.CLICK, startgame);
            trace("event listener added");
        }

        public function buttonHover(e:Event):void{
            if (e.target == startBtn)
            {
                startBtn.x = (stage.stageWidth/2 + 128);
                startBtn.y = 504;
                startBtn.scaleX = 0.395;
                startBtn.scaleY = 0.395;
                mouseClick.play();
            }
        }

        public function buttonHoverOff(e:Event):void{
            if (e.target == startBtn)
            {
                startBtn.x = (stage.stageWidth/2 + 125);
                startBtn.y = 500;
                startBtn.scaleX = 0.4;
                startBtn.scaleY = 0.4;
            }
        }

        public function btnMovement():void
        {
            startBtn.y += 10;
        }
        //this function removes all objects for the start menu and goes into the game
        public function startgame(e:Event):void
        {
            if (e.target == startBtn)
            {
                removeEventListener(MouseEvent.MOUSE_OUT, buttonHoverOff);
                mouseHover.play();
                startMove = setInterval(startGameAnimation, 16.6);
                planeTakeOff.play();
                var btnMove:uint = setInterval(btnMovement, 16.6);
                if (startBtn.y > stage.stageHeight + 20) {
                    startBtn.y += 0;
                    startBtn.visible = false;
                    clearInterval(btnMove);
                }
                //game();
                //trace("objects removed.  game starting...");
            }
            trace("remove click found");
        }

here's the restart section:

public function endScreen():void
        {
            //removeEventListener(Event.EXIT_FRAME, endLoad);



            ENDScore.text = "Score: " + String(scoreBar);

            ENDScore.width = 200;
            var endFormating:TextFormat = new TextFormat();
            endFormating.size = 25;
            endFormating.font = "Consolas";
            endFormating.color= 0xFFFFFF;
            ENDScore.x = stage.stageWidth/2 - ENDScore.width/2 + 10;
            ENDScore.y = 415;
            ENDScore.setTextFormat(endFormating);
            endBtn.x = 660;
            endBtn.y = 460;
            endBtn.scaleX = 0.9;
            endBtn.scaleY = 0.9;
            addChild(endScr);
            addChild(ENDScore);
            addChild(endBtn);
            closeDetect();
            //trace("button");
            //trace(scoreBar);
        }

        public function closeDetect(e:Event = null):void {

            trace("button");
            endBtn.addEventListener(MouseEvent.CLICK, closeGame);
        }

        public function closeGame(e:Event):void
        {
            //trace("button found");
            //
                //trace("button clicked");
                ////endBtn.visible = false;
                //removeChild(enemyFighter);
                //removeChild(enemyFighter2);
                //removeChild(enemyFighter3);
                //removeChild(enemyFighter4);
                //removeChild(enemyFighter5);
                //removeChild(lMass1);
                //removeChild(lMass2);
                //removeChild(player);
                ////removeChild(bullet);
                //removeChild(endScr);
                //removeChild(endBtn);
                //removeChild(ENDScore);
                //
                //playerDeath = false;
                //thePlayerDies = 3;
                //scoreBar = 0;
                //removeEventListener(MouseEvent.CLICK, closeGame);
                ////init();
                //if (stage) init();
                //else addEventListener(Event.ADDED_TO_STAGE, init); 
                fscommand("quit");

        }