I was talking about translation interface for simulations created before 2001 (Not simulations created with EJS).
It is available for all the simulations under [url=http://www.phy.ntnu.edu.tw/ntnujava/index.php#2]JDK1.0.2 simulations (1996-2001)[/url].
For example: you can check out [url=http://[url=http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=11.0]pendulum[/url] and select the last one in the slection menu(translated to Finnish by hthunebe)

EJS has it's own translation tool when running in application mode. (download jar file and runing locally).
The translation tool is not available when EJS simulation is running as an applet.

If you think it is necessary to have a language translation interface for EJS simulations,
I will try to find a way to implement it , too!