# External SWF controlling main time line

**URL:** <https://forum.kirupa.com/t/external-swf-controlling-main-time-line/74721>\
**Category:** Uncategorized\
**Created:** [January 1, 2005, 5:47pm UTC](https://forum.kirupa.com/t/external-swf-controlling-main-time-line/74721 "2005-01-01T17:47:31Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![ellare](https://avatars.discourse-cdn.com/v4/letter/e/919ad9/32.png) [@ellare](https://forum.kirupa.com/u/ellare)\
**Post date:** [January 1, 2005, 5:47pm UTC](https://forum.kirupa.com/t/external-swf-controlling-main-time-line/74721/1 "2005-01-01T17:47:31Z")

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Can you put frame actions on loaded external swfs that will effect and control the main .fla timeline (\_root) and **what would the syntax be**?

lets say that main.fla is my main flash doc that is loading an external swf called “externalSWF1.swf”

if i want “externalSWF1” to make things happen to the the main.fla time line (which would be \_root) - how can i do that?

for example -

main.fla is loading “externalSWF1” at the press of a button. same button also makes _internal_ “thumbnail\_mc” alpha = 0, which is on the stage of main.fla.

i want to make “thumbnail\_mc” alpha = 100 when “externalSWF1” is through playing. so i figured that i would need a frame action in the last frame of “externalSWF1” to control "thumbnail\_mc"s alpha - when “thumbnail\_mc” rests on the main root timeline of main.fla document.

**but i am not quite sure what the syntax would be or if it can be done.**

thanks!  
ellare