External SWF realted question to access the button from another swf file?

programming flash
1

Hi,

I have a main.swf file. From that file I am accessing the external.swf file which is an external file.

Now, how can I write code on my main.swf file for the button which is on my external.swf file?

Activities.MainPanel.close_btn.addEventListener(MouseEvent.CLICK, btnClickClose);

[COLOR=#ff0000]Activities.MainPanel.close_btn[/COLOR] (This buttons is actually on external.swf file, but I want to write code on main.swf file to execute it on external.swf) how can I control one [COLOR=#ff0000]swf[/COLOR] button on other **[COLOR=#ff0000]swf [/COLOR]**file?

Thanks.