How to make a scrollable, clickable list of items in Dojo?

I'm totally new to Dojo (using 1.3 via Google's XD), and want to try to do things the 'right way', but don't see an obvious dojo.layout.*Container for this.

Basically, I have a UI with a list of categories on the left, and then a list of data on the right.

So say there are 20 categories and each one has 20 items in it. I want to be able to click on a category and then display the appropriate list on the right.

But I don't see a Container that just holds a list of ContentPanes. My gut feeling is that the layout should be:

• BorderContainer:
  • leading: ???Container
  • • 1 ContentPane per category
  • center: ???Container
  • • 1 ContentPane per item in selected category.

But I have no idea what that ???Container should be.

Some options I've thought of:

• Using a dojox.Tree for the Categories. Not ideal, since my categories aren't heirarchical, and I'd have to alter the CSS to hide the +/- and lines.

• Using a diji.Menu for the categories. Close, but I want to highlight the selected category, and it doesn't feel like Menus are made for that.

• Building my own _Container subclass. Seems doable, but is that really necessary?

• Using Templated Widgets. Seems maybe the best approach I've found, but I'm unclear if that's really what I want to do.

So, any advice would be greatly appreciated.

Sounds like you want dijit.layout.StackContainer.