Hello, this post is a bit old by now, but I'm glad I stumbled upon it! I got Shaun's solution to work, but with text instead of images. Essentially, it's an announcement marquee. And the site is in WordPress so the number of announcements – and therefore the length of the scrolling div – is dynamic. I'm wondering if there's a way to control the duration dynamically as well, so it's an even pace no matter how many announcements there are.
Thanks for the original solution Shaun!