In this blog post, I'll show you how to use SilverStripe and jQuery to use one select to control another select. If you want to check out the demo, have a look at this page.
On a recent project, I was using the jQuery UI Accordion to show and hide content in a cool way. However I required that it had all of the content panels closed on page load. This is how you achieve this:
Currently I'm working on a SilverStripe site which has a black background and white text. This causes a problem with the WYSIWYG editor in the admin as this is rendered with a white background and the white text cannot be seen.