Loaded external image question: Use default image if loaded image not found?

programming flash
1

Hello,

I use the following code to load an external logo into a Flash Movie.

var myRequest:URLRequest=new URLRequest(logoPath);
var loader:Loader = new Loader();
loader.load(myRequest);
holder_mc.addChild(loader);

What if the logo file is not find? I wish that if the logo is not found, another default logo will be used, i.e.

if (logoPath is here) {
var myRequest:URLRequest=new URLRequest(logoPath);
} else (logoPath is not here) {
var myRequest:URLRequest=new URLRequest(“defaultlogo.png”);
}

How can I do that?

Thanks and best regards

Alex