Edit: I updated the tutorial. You can check Online example and download capx file. Kittiewan has a similar technique for shuffling, but I used a more common tec...
This is a very old tutorial. And i don't have a capx of this right now. But i added a similar example. You can find it here with a capx: construct.net/en/free-online-games/random-pictures-experiment-5122/play