Creating a symbol that dissappears after time.

[cyberdude_9]

I'm making a navigation bar for a webpage that i am working on and when you click a button a menu comes down from it to let you chose your selection. I want the menu to fade out or disappear after 15 seconds of nobody using it though. Can anyone point me in the right direction? I know the basics, but am pretty much an actionscript newbie.

[gparis]

You could make an easy calculation. at 20 frames per second, the fade out would appear at frame 300
gparis

[cyberdude_9]

oh okay got it, thanks.