No matter what I do, I can't seem to get the scrolltofixed code to work on my tumblr page. I've looked here and here, but nothing seems to work. My tumblr page is http://htmltest004.tumblr.com - I'm trying to get it to work on my .navigation div class. I was originally trying to do it with a div id, and switched to a div class to see if that made any difference (which it didn't). Please note, I don't know anything about JavaScript - only CSS and HTML. All the information I have came from the two linked sources. If you guys could help me, I'd really appreciate it. Thanks!
-Matt