Unloading swf between two swfs.

Question

I have a UI that loads swf in the content area when several
buttons are clicked (these buttons are menu1, menu2 et.c) the code
is as follows and it is working fine...
import fl.controls.Button;
import flash.display.Loader;
import flash.net.URLRequest;
import flash.events.MouseEvent;
var loader = new Loader();
var swfFile:String = new String();
swfFile = "blank.swf";
var req:URLRequest = new URLRequest(swfFile);
loader.load(req);
addChildAt(loader,1);
menu1.addEventListener(MouseEvent.MOUSE_UP,menuRelease);
menu2.addEventListener(MouseEvent.MOUSE_UP,menuRelease);
menu3.addEventListener(MouseEvent.MOUSE_UP,menuRelease);
menu4.addEventListener(MouseEvent.MOUSE_UP,menuRelease);
function menuRelease(e:Event):void {
this.removeChildAt(1);
if (e.target.name == "menu1") {
swfFile = "FM_main_menu_beta01.swf";
} else if (e.target.name == "menu2") {
swfFile = "FM_plan_menu_beta01.swf";
} else if (e.target.name == "menu3") {
swfFile = "FM_activity_menu_beta01.swf";
} else {
System.exit(0);
req = new URLRequest(swfFile);
loader.load(req);
this.addChildAt(loader,1);
So clicking the first button brings up a main menu in the
main content area...with four menu options (buttons labelled
mainMenu1, mainMenu2 etc.) When you click one of these main menu
options, the corresponding swf should be loaded in place of the
main menu (in the main contant area).
However this is not happening and the main menu is staying
around and not being unloaded. Is this because the main menu swf is
in a loader created in the parent swf, but the main menu loader is
in the main menu swf. So I think in effect i have two loaders
appearing at the same time.
import fl.controls.Button;
import flash.display.Loader;
import flash.net.URLRequest;
import flash.events.MouseEvent;
var swfFile:String = new String();
swfFile = "blank.swf";
var req:URLRequest = new URLRequest(swfFile);
var loader = new Loader();
removeChildAt(1);
loader.load(req);
addChildAt(loader,1);
mainMenu1.addEventListener(MouseEvent.MOUSE_UP,menuRelease);
mainMenu2.addEventListener(MouseEvent.MOUSE_UP,menuRelease);
mainMenu3.addEventListener(MouseEvent.MOUSE_UP,menuRelease);
mainMenu4.addEventListener(MouseEvent.MOUSE_UP,menuRelease);
function menuRelease(e:Event):void {
removeChildAt(1);
if (e.target.name == "mainMenu1") {
swfFile = "FM_plan_menu_beta01.swf";
} else if (e.target.name == "mainMenu2") {
swfFile = "FM_activity_menu_beta01.swf";
} else if (e.target.name == "mainMenu3") {
swfFile = "blank.swf";
} else {
swfFile = "blank.swf";
req = new URLRequest(swfFile);
loader.load(req);
addChildAt(loader,1);
}

Answer 1

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