So recently I've been working with JavaScript, which I have little experience in.Mostly I just go ahead Google "thing I need to do" + JavaScript.
I've decided to change that and really learn a bit about the language. I was surprised to find that JavaScript is a fully object oriented language and is hands down the best language out there to do anything on a web browser that needs user input and to provide a smooth experience (i.e. Ajax etc)
Also the Mozilla Dev Center is a great resource for JavaScript (and a few other web related languages)
So if you haven't already, give JavaScript another look.