Ok, that's good, too. But I meant something different:
The picture should move within a specific time from its actual angle to a new angle, released by a single script call. I don't want to animate it like this:
> Wait for 1 second
> Angle +1
> Wait for 1 second
> Angle +1
> Wait for...
I want it to be like:
> Rotate from actual angle to new angle within 10 seconds