I'm trying to make fieldset boxes minimize by user control. For instance, an advanced search options box, which if the <LEGEND> text is clicked, then more options dropdown. Is this easy to achieve with either a simple CSS or JAVA code?

 

There's also usually a little arrow which either points right for minimized, and down for showing the contents.

You'll need to use Javascript to do this... see http://www.learningjquery.com/2006/09/slicker-show-and-hide for examples