ASP:Menu -> using it like a drop down list

[jsgough]

I am trying to create a drop down list that has a button as its first
item, and text links underneath. I hacked the ASP:Menu to do this so
that it only pops the menu when the indicator arrow is moused over
(though I may change that to click). I'm just wondering if there is a
better, more official way to achieve something like this.

The sample code is here:

http://apps.ultravioletconsulting.com/misc/MenuControlOnImageHover.aspx

The embedded JavaScript re-defines one of Microsoft's functions and
then attaches a different handler to the indicator image to drop the
menu down.

Thanks,
Josh