Since you are using adobe Air you can create more windows:
var options:NativeWindowInitOptions = new NativeWindowInitOptions();
options.systemChrome = NativeWindowSystemChrome.STANDARD;
options.type = NativeWindowType.UTILITY
options.transparent = false;
options.resizable = false;
options.maximizable = false;
var newWindow:NativeWindow = new NativeWindow(options);
newWindow.activate();
This does mean you can't use this on the web though.
Edit: Take a look at this.