In Adobe Flex we have got a component called Accordion panel, most of us will be familiar with that component. The advantage of that panel is that we can place more contents in less space. It is a container which acts just like a tab navigator but with some animation effects. You can get lots more information about Flex accordion panel from Adobe labs.
I tried to develop the same thing using DHTML and CSS. I have used DIV and style property DISPLAY to obtain the working of the panel.
You can download the code and see its live demo. But don't forget to comment on the post