Preferred customizable progressively enhanced dropdowns/menus?

Question

I was looking at what YUI had, http://developer.yahoo.com/yui/examples/button/btn%5Fexample07.html

Can anyone recommend a library/plugin they used to progressively enhance native select element dropdowns at the request of a client? I know it's impossible to style a dropdown in IE, so it's either this or Flash which I don't want to get into.

I'll still leave the regular dropdown in the source for non-JS users and serve the dropdown replica built out of non-form control elements.

Answer 1

Assuming you mean a different library than YUI, I like dojo's dijit.form.FilteringSelect.

Answer 2

Turns out it wasn't all that difficult, pretty much the same logic as a dropdown menu except with a little extra for the toggling bit.