How to get an expandable menu in magento category list

Question

Any idea how I can get a category menu that expand when you click on a category? Here you can see an example at the left menu (not magento) http://www.rijwielcashencarry.nl

Is this possible with css only?

Or is there a module that can do this?

Answer 1

I haven't tested it (it costs €30) but here is a module that should do what you want.

If you're more of a DIY guy, check this Magento wiki that explains almost everything needed to get a vertical menu. With a bit of JavaScript you should be able to get collapsing submenus easily.