thanks for your fast reply!
I have several existing sprites (with behaviours and events) and i want to
change their images dynamically from level to level.
With it i would be able to have several levels with different images
without 'coding' several layouts.
Moreover i would be able to change the images without changing (and
reuploading) the whole project (e.g. for generating a christmas-level
with snow, etc.).
Therefore, the HTML-Div-Solution unfortunately doesn't work for me.
Thanks again & Greetings ... Peter