First, that's awesome you're going to use it in the classroom. Thanks!
That's interesting. When I create a new .js
file it's empty. It sounds like something has mucked up the templates and/or default documents.
I wanted to use WebMatrix when recording the book, but it was in beta (and I didn't want to use beta software). It has a built-in web server, which is great for Ajax stuff. Another excellent editor is Sublime Text 2, but it's not free. Notepad++ or Notepad2 are good editors.