Yes, Java and JavaScript are two completely different things.
The story goes that Netscape decided to rename their "LiveScript" as part of a co-marketing deal with Sun Microsystems (the company that developed Java)
I've heard some apps like skyfire help in this case. I never believed it so never bothered to try it out. Plus I do not need... hmm... come to think about it thats flash not java. Oh well. Ignore. Why am I still typing?