obfuscated javascript - how to achieve?

[crymari2]

G'day all,

I've coded a cool javascript code library and wish to sell it.
I don't want competitors to be able to cut and paste pieces of javascript code from it into their liraries. The only way to protect it somehow is to rename variables, remove comments and so on - i.e. to apply a tool called "javascript obfuscator" to it.
Please recommend me a javascript obfuscator you used, and tell me your experience with it. Any other hints are welcome too.
In search engines I've found this javascript obfuscator - js-obfus from Stunnix. The set of features is rather good and it's cross-platform too.. Have anybody tried it? What are your impressions?