There are some descrepancies between variables in the Annexes in the documentation and this topic:

http://www.playonlinux.com/en/topic-4366-Regarding_scripts.html

with the Annexes:

http://www.playonlinux.com/en/dev-documentation-0.html

Eg:, $TITLE, $REPERTOIRE, $DIRECTORY

Please update the documentation. It really helps us who are new to this excellent program. Thanks!

I found another thing that could be changed in the futurr: There are some functions that returns "FALSE" and "TRUE" and some that returns "False" and "True". It would be better if all boolean variables have the same case.