So now, here’s how I include a jQuery library on my scripts.
You may also use google.load function if you want. But you have to get your own API key. So I prefer accessing it in direct path (script above).
Here’s a simple slide and toggel demo, with jQuery hosted by google.
Well actually, jQuery site also provide their script.
There are many debates whether to host your jQuery on Google or not. You may also read this article and its comments.