Instead of worrying about how bad JS is, read JavaScript the Good Parts and Effective JavaScript and focus on how good much of it is. Yes, JavaScript has oddities and there is a quite short list of pitfalls you have to learn to avoid ('==' vs '===' for example), but it also has some very powerful features. Take the time to actually learn actual JavaScript, as opposed to assuming that it's basically a bad Java (or whatever) with slightly different syntax and you'll find a pretty neat and powerful language.
