flex菜单同步选择单选“综合应用”

private var currentFun:String="yq";//默认初始值，“雨情信息”
//监听事件
protected function basewidget1_creationCompleteHandler(event:FlexEvent):void
{
//Alert.show("综合应用");
AppEvent.addListener(AppEvent.SEND_MSG_TO_FUNCTIONSELECTWIDGET_HIDE,handler);
//菜单同步
ExternalInterface.addCallback("callRadioApp",this.doRadioHandler);
//AppEvent.addListener(AppEvent.SEND_MSG_TO_FUNCTIONWIDGET_QXXX,refFun);
}

//选中相应的radio
private function doRadioHandler(funName:String):void
{
//Alert.show(funName);
if(currentFun==funName){
return;
}
switch(funName)
{
case "yq":
yq.selected=true;
break;
case "sq":
sq.selected=true;
break;
case "db":
db.selected=true;
break;
case "sp":
sp.selected=true;
break;
case "zk":
zk.selected=true;
break;
case "sz":
sz.selected=true;
break;
case "ll":
ll.selected=true;
break;
}

}