[^VoM^]

Пример, опять же из хелпа:

// define a class
function myClipClass() {}

// inherit from MovieClip class
myClipClass.prototype = new MovieClip();

// define event handler methods for myClipClass class
myClipClass.prototype.onLoad = function() {trace ("movie clip loaded");}

// register class
Object.registerClass("theID", myClipClass);
_root.attachMovie("theID","myName",1);

// Attach MC with ID "myclipID" from Library
_root.attachMovie("myclipID","ablue2",3);