package {
import flash.display.Sprite;
import flash.external.*;
public class Main extends Sprite
{
public function Main()
{
if (ExternalInterface.available){
ExternalInterface.addCallback("sayHello", sayHello);
}
}
public function sayHello(msg:String):void{
ExternalInterface.call("alert",'Answer from Flash:' + msg);
}
}
}