To be honest, I've never heard of one. A lot of the common sense conventions carry over from Java, but were there specific areas you were wondering about?
I have the book titled Sams Teach YourSelf JavaScript in 24 Hours. the author always create a method with a capital letter in the first letter. it confused me very much. There are no gap between variable asignment for example:
Does the javascript programmer code like above in the real project?