Maybe you can adapt this...
Code:
var num = 0;
var sideNavListener:Object = new Object();
var sideNavLoader:MovieClipLoader = new MovieClipLoader();
sideNavLoader.addListener(sideNavListener);
sideNavListener.onLoadInit = goPage;
var contentListener:Object = new Object();
var contentLoader:MovieClipLoader = new MovieClipLoader();
contentLoader.addListener(contentListener);
contentListener.onLoadInit = prepBtns;
contentLoader.loadClip("btns.swf",content_mc);
function prepBtns(mc:MovieClip) {
mc.button1_btn.onPress = loadMenu;
mc.button2_btn.onPress = loadMenu;
mc.button3_btn.onPress = loadMenu;
mc.button4_btn.onPress = loadMenu;
mc.button5_btn.onPress = loadMenu;
mc.button6_btn.onPress = loadMenu;
}
function loadMenu() {
num = this._name.charAt(6);
sideNavLoader.loadClip("menu.swf",sideNav_mc);
}
function goPage(mc:MovieClip) {
mc.gotoAndStop(num);
}