IOS-orientation.as

On init:

var startOrientation:String = FP.stage.orientation;
if (startOrientation == StageOrientation.DEFAULT || startOrientation == StageOrientation.UPSIDE_DOWN)
{
	FP.stage.setOrientation(StageOrientation.ROTATED_RIGHT);
}
else
{
	FP.stage.setOrientation(startOrientation);
}

FP.stage.addEventListener(StageOrientationEvent.ORIENTATION_CHANGING, orientationChangeListener);

...

private function orientationChangeListener(e:*): void
{
	if (e.afterOrientation == "default" || e.afterOrientation ==  "upsideDown")
	{
		e.preventDefault();
	}
}