[dimarik]

 
var appDomain:    ApplicationDomain = loader.loaderInfo.applicationDomain;
 
if ( appDomain.hasDefinition("Page1") ) {
    var c:Class = appDomain.getDefinition("Page1") as Class;
    if (c)
        var mc:MovieClip = new c() as MovieClip;
}
 
if (mc)
    super.addChild(mc);