Well.
Here is a pretty sad suggestion, but it will work if you dont want anything fancy.
You could setup several layers using dhml, then have your dropdownbox fire an event to change the layer (each layer would hold different text and be bound within a table)
However, layers are on load, so if you wanted to say load data dynamically, the answer is pretty much no 🙂
I recommend http://www.dhtml.com as a starting point if you are serious about doing that.
Hope that helps