Hiding/Showing MCs

I need help hiding/showing movieclips.

I have a button on the main timeline used for showing a movieclip.
I have another button inside the movieclip for hiding the parent movieclip.
The movieclip is called wintest (for now).
I tried
ActionScript Code:
[FONT=Courier New][LEFT][COLOR=#0000FF]on[/COLOR]COLOR=#000000[/COLOR][COLOR=#000000]{[/COLOR]
[COLOR=#0000FF]_root[/COLOR].[COLOR=#000080]wintest[/COLOR].[COLOR=#0000FF]hide[/COLOR];
[COLOR=#000000]}[/COLOR]
[/LEFT]
[/FONT]

For hiding the parent movieclip (wintest), but no luck. I have no idea how to show the movieclip so I didn’t bother trying :P.