Dynamically track all TextFields on stage

I have several “page” swfs (Flash 9, AS3) that are loaded at runtime by a “navigation” swf (Flash 9, AS3).

I want to trigger a method in my navigation swf each time that a dynamic TextField is displayed on stage in one of the “page” swfs? These TextFields are put on stage at design time somewere on the fla timeline. So these textFields can be nested in mc’s and have whatever instance names.

Is this possible?

Tnx,
Gert