JSscript in Conversion files with If then else syntax

Hi everyony

We are running BPC 10.0 SP6.

General question: has anyone managed to create a conversion file, containing jsscript with IF-THEN-ELSE syntax, in BPC10.0??

Im always getting a "Evaluation error" in the log.

Below is two of the variants i have tried, but without success. The first one is influenced by Sheldon Edelstein article regarding JSSCRIPT. The other one is from the WEB, http://www.w3schools.com/js/js_if_else.asp

And here's the errormessage in the DM-logg.

Any input is appreciated

/Björn