Proper AS3 coding

Hi Folks,

I am looking at a fully functioning application written in AS2. I noticed that there are AS2 codes in the 1st key frame of the ‘action’ layer and also within the custome made button symbols in the library. There are also stand alone ‘.as’ files which are called by the codes already in the timeline. What is the prefered coding methodology when it comes to AS3? Should all code be placed in seperate ‘.as’ files and the only code if any in the timeline should be to call/initialize the ‘.as’ files? What about the symbols? Should any AS3 code reside within them, like eventhandlers, or should they too be moved to a seprate ‘.as’ file I hope someone can advise me.Thanks.

regards
glisando