Action Script 3 and button instances

Question

Surprise suprise, got the new CS3 Flash, but still has both
earlier ***, nevertheless, I did something, don't know what, didn't
mean to switch to AS3 (maybe), and somehow the stop actions don't
work anymore. I still published in AS2 for Flash 8 as before, but
it is still screwed up and I don't know how to fix this mess.
I read about it, did my research, but because I am not a
programmer, just a designer, I don't understand what you mean by
events won't work on button instances anymore and to put action on
a keyframe??
I have several buttons in my movie, so how do I put them on a
keyframe and where???? And how is this keyframe going to know which
button it belongs to??
Am I missing something?

Answer 1

If your in a bind at the moment, I would suggest not
attempting to learn AS3. The system is very different, good, but
different, the syntax structure is much more strict and most things
have been revised to use a listener/broadcaster (or event
dispatcher) model, as well as most coding being class oriented,
additionally the graphic display structure is quite different.
Now did you change your publish settings back to AS2? If so,
you should still be able to apply the above code to a button
instance. However, as Dave stated, even in AS2 the code is best
used from the timeline, to do so with the code above (which the on
handler above is meant for Object attachment) you need to write it
like this:
my_btn.onPress = function() {
_root.loadMovie("graphic_arts/graphic_arts.swf");
I would also consider using a MovieClipLoader and the
loadClip method forloading swf files, as it gives you more control
over the load targeting, progress reporting, and event
notifications.
All this said, to use a button and load a file in AS3, you
need to add an event listener to the button instance and construct
a responding function to the event, in this case the loading of a
swf file. Additionally, in AS3 the MovieClipLoader class, as well
as the loadMovie methods have been replaced by the Loader classes
and must be used to load swf files. So construct a button in AS3
you must write something like the following: