未捕获的引用错误:$没有定义错误

I took this code from a tutorial to make an auto advancing slideshow in javascript/jQuery and it works wonderfully in jsfiddle. However, when I bring everything over into Dreamweaver it seems to just stop working. Everything is there, I've linked all the relevant files (the .js and the .css) as well as the jQuery library. For some reason though it won't work at all. Here's the code.I took this code from a tutorial to make an aut