Tat’s not done in flash, but rather with javascript and DHTML
I’ve made those before, and luckily I have golive. If you have that, check out this tutorial:
http://www.golivein24.com/golive5/tips/tut2_dhtmlmenus_new/tut2_new/index.html
I’m sure you can figure out how to translate this to your editor…
Let me just say, that if you attempt to do this by writing out the javascript and DHTML, you might as well jump out the window right now…