Getting external swf to stay visible?

Question

Hi
I have an external swf that contains a button that controls my main swf's timeline.
I can get it to navigate fine, but as soon as it navigates, my external swf disappears, because my main swf is no longer on the frame my external swf was imported on.
How do I get the external swf to stay visible along all the frames of my main swf's timeline?
Here's the code I use to import the external swf:
var external_swf:MovieClip;
var loader:Loader = new Loader();
var import_me_SWF:URLRequest = new URLRequest("external_mc.swf");
loader.load(import_me_SWF);
loader.x = 0;
loader.y = 0;
addChild(loader);
loader.contentLoaderInfo.addEventListener(Event.COMPLETE, dataOnLoad);
function dataOnLoad(evt:Event): void {
external_swf = MovieClip(evt.target.content);
Thanks guys.
Shaun

Answer 1

SOLUTION:
Ok - here's a solution I experimented with for anyone that needs a similar fix:
1. Create a new layer where you would like the external swf to go (in my case, the layer is on the top).
2. Draw a rectangle (doesn't matter what it is really), convert it to a movieclip symbol, and give it a color effect APLHA of 0 so it's invisible.  Give it an instance name - I named mine 'external_swf_holder'
3. Adapt the external loader code like this...add 'external_swf_holder' to the beginning of the external clip name, with a dot in between:
var external_swf:MovieClip;
var loader:Loader = new Loader();
var  import_me_SWF:URLRequest = new URLRequest("external_mc.swf");
loader.load(import_me_SWF);
loader.x  = 0;
loader.y = 0;
addChild(loader);
loader.contentLoaderInfo.addEventListener(Event.COMPLETE,  dataOnLoad);
function  dataOnLoad(evt:Event): void {
external_swf_holder.external_swf =  MovieClip(evt.target.content);
4. That's it.  Now Flash should always keep your swf on the layer that 'external_swf_holder' is on.
Cheers
Shaun