# AS3 Document class and package classes tipas asked

**URL:** <https://forum.kirupa.com/t/as3-document-class-and-package-classes-tipas-asked/288740>\
**Category:** Uncategorized\
**Created:** [May 20, 2009, 10:52am UTC](https://forum.kirupa.com/t/as3-document-class-and-package-classes-tipas-asked/288740 "2009-05-20T10:52:38Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![humbucker](https://avatars.discourse-cdn.com/v4/letter/h/278dde/32.png) [@humbucker](https://forum.kirupa.com/u/humbucker)\
**Post date:** [May 20, 2009, 10:52am UTC](https://forum.kirupa.com/t/as3-document-class-and-package-classes-tipas-asked/288740/1 "2009-05-20T10:52:38Z")

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Hello,

I’m learning AS3 for some weeks now and I’m using a single document class actionscript to pilot my flash file.

I see in different components or example files that sometimes a project uses differents classes (one class that handles the backgrounds, one class for navigation)…

My question : what’s the good use of multiple classes and how can I make them communicate if I need the value of one function from another class file ??

Thank you !!