I've managed to have something that works at least for sprites yesterday.
It don't implement all the features of AOSL (1.0 draft-3) but it's a good start I guess.
It's all JavaScript but I'm not a specialist so it's a bit hard to organize the code correctly.
If there are JavaScript experts around, any help is welcome (see the repository in previous mail).
Also, I will not be able to work full time on this after tomorrow, as I get back to France next week and will only be able to spend 1/3 of my time on it (I have some video game to build).
I'll make a blog post giving details about what the current implementation can do, once I merge the work in the main repository.
Joel Lamotte / Klaim