# Defining a property without the instance being in the movie

**URL:** <https://forum.kirupa.com/t/defining-a-property-without-the-instance-being-in-the-movie/301831>\
**Category:** flash\
**Created:** [December 16, 2009, 2:10pm UTC](https://forum.kirupa.com/t/defining-a-property-without-the-instance-being-in-the-movie/301831 "2009-12-16T14:10:25Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![meadsy](https://avatars.discourse-cdn.com/v4/letter/m/c57346/32.png) [@meadsy](https://forum.kirupa.com/u/meadsy)\
**Post date:** [December 16, 2009, 2:10pm UTC](https://forum.kirupa.com/t/defining-a-property-without-the-instance-being-in-the-movie/301831/1 "2009-12-16T14:10:25Z")

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Hi, I’m a bit on the novice side of AS3 and am struggling away. I have one major issue which I cannot fathom.

I have two swf’s which I am loading into a flip book. They will both on the stage at the same time one on each side of the book. I want one to control the other. The issue is when I try to set up functions in one to control objects in the other I get and error about undefined properties. I assume this is because the objects I am referencing are not in the movie where the function lies. And vice versa, when I set up the functions in the movies when the objects are I get an error as the buttons are not defined as they are in the other swf. Can anyone advise me on how to approach this please?

Cheers