Scrollfunction - "pushing" button when releasing mouse from scrolling

I have a scrollfunction on a container(MovieClip). The container has a instance of several buttons(other movieclips). When I scroll the container and release the mouse I automatically push the button where the mouse release the scroll. If that was understandable.

I scroll, when I release the scroll. One of the buttons is pushed.

I have tried adding a if sentence with the "offsetY" like this:

//if(offsetY>30 || offsetY<-30)

I have tried adding a timer in the mouseUpHandler, without success.

container.addEventListener(MouseEvent.CLICK, onMouse); // This is the code that is triggered.

var maxY: Number = 0;

var minY: Number = Math.min(0, stage.stageHeight - container.height - mcTopic.height - blaatt.height - controlButtons.height - mcNowPlaying.height);

var _startY: Number;

var _startMouseY: Number;

addEventListener(MouseEvent.MOUSE_DOWN, mouseDownHandler);

function mouseDownHandler(event: MouseEvent): void {

_startY = container.y;

_startMouseY = mouseY;

stage.addEventListener(MouseEvent.MOUSE_MOVE, stage_mouseMoveHandler, false, 0, true);

stage.addEventListener(MouseEvent.MOUSE_UP, stage_mouseUpHandler, false, 0, true);

}

function stage_mouseMoveHandler(event: MouseEvent): void {

var offsetY: Number = mouseY - _startMouseY;

container.y = Math.max(Math.min(maxY, _startY + offsetY), minY);

container1.y = Math.max(Math.min(maxY, _startY + offsetY), minY);

}

function stage_mouseUpHandler(event: MouseEvent): void {

stage.removeEventListener(MouseEvent.MOUSE_MOVE, stage_mouseMoveHandler);

stage.removeEventListener(MouseEvent.MOUSE_UP, stage_mouseUpHandler);

}