Controlling different SWF's in HTML page

If I have an INDEX.HTML file, with separated SWF’s, can I control them from a MAIN swf? What I want is:

Imagine I have INDEX.HTML and inside it, I have a menu.swf, a content.swf, a photos.swf, all separated from each other
I want, with menu.swf, control the rest of the SWF files. How can I do it?