private function makeBorderDraggable(): void {
this.addEventListener(MouseEvent.MOUSE_DOWN, function(event: MouseEvent): void {
if (enabled && isPopUp) {
var left: Number = getStyle('borderThicknessLeft');
var top: Number = getStyle('borderThicknessTop');
var right: Number = getStyle('borderThicknessRight');
var bottom: Number = getStyle('borderThicknessBottom');
if (isNaN(bottom)) bottom = left;
if (event.localX < left || event.localY < top || event.localX > width - right || event.localY > height - bottom)
startDragging(event);
}
});
}