Okay, I solved my problem now. Thanks a lot!!
However, I still need to learn a lot, I guess. I don't really know what I can do with values, for example. I wasn't able to find any real explanation for that. Still, your Demogame is very useful.
Thanks again for your great support!
![smile smile](https://images.siteface.net/_js/BBCEditor/icons/smiley-smile.png)