[flexcoders] Suggestions for common functions in app

[boy_trike]

I build my systems by creating a component (or 2) for each section of the 
application logic.  I 
have a few common functions (data conversion, etc.) that are used in many of 
the 
components.  Right now, I am placing them in my MAIN application and calling 
them:
"parentApplication.myfunction()".  Is there a better way?  Should I create a 
package with my 
common fuctions and then import it into every component that uses it?

Thanks

Bruce