If you (and your team) is used to Java but need to make some JavaScript for a web site, perhaps you should consider Google Web Toolkit (GWT). It lets you code JavaScript using Java, which is converted to JavaScript. I haven't tried it, though.
JavaScript is actually a quite cool language. It has a few flaws (including allowing you to do very stupid stuff), but with a little self dicipline you can make great stuff. JavaScript is actually object-oriented, not so much class-oriented, but you can do much of the same stuff. You don't have (AFAIK) inheritance, but it's not strict at all (one of its powerful but also dangerous features) with typing so you'll find it's not limiting.
