As3 javascript open window弹出窗口

public class Jsnavigator extends Sprite {
private var btn:Sprite;
public function Jsnavigator() {
init();
}

private function init():void {
btn = new Sprite();
addChild(btn);
btn.graphics.beginFill(0xff0000);
btn.graphics.drawRect(10,10,40,20);
btn.buttonMode = true;

btn.addEventListener(MouseEvent.CLICK, onNavigator);
}

private function onNavigator(Event:MouseEvent) {
var url:String ="javascript:window.open('http://www.webstudio.com.cn','mywindow','height=800,width=600,toolbar=no,scrollbars=yes'); void(0);";
navigateToURL(new URLRequest(url),"_self");
}

}
}