Change background from external movie clip

programming flash
1

Hi all ^^

i have a little problem.
i’m making an all flash website, there’s a main swf (the web page), with all the content, a Background and Buttons . from this swf, i load an other one, externaly. it contains a menu, with four buttons. (here’s the action script)



// Create a Movie Clip to load the swf Movie into
this.createEmptyMovieClip("myExternallyLoadedSWFMovieHolder", 0);

// A variable to hold the name and location of where the external swf Movie is located
var myVariable = "web_menu.swf";

// Set the Movie's location on the Stage
myExternallyLoadedSWFMovieHolder._x = 400;
myExternallyLoadedSWFMovieHolder._y = 0;

loadMovie(_root.myVariable, _root.myExternallyLoadedSWFMovieHolder);

each button of the menu is supposed to refer to the “skin” of the main page. by “skin” i mean the Background and the Buttons.

is there a way to do that, keeping the two movies sperate?
will i have to remake the menu inside the main movie? and then how will it work?

thank you for helping me, i hope i was clear in my explanations.

edit : here’s the link to the page : http://cinozarts.free.fr

the menu is the turning symbols upside, i want them to change the global background, and the shape of the buttons.