dal manuale (inglese) di Flash 5:
codice:
_visible 

Syntax 

instancename._visible
instancename._visible = Boolean;
Arguments 

Boolean Enter a true or false value to specify whether the movie 
clip is visible. 

Description 

Property; determines whether or not the movie specified by the instancename argument is visible. 
Movie clips that are not visible (property set to false) are disabled. 
For example, a button in a movie clip with the _visible property set to false cannot be clicked.