flash我这AS哪里错误？

stop()
onLoad=function{
total =_root.getBytesTotal();
}
onEnterFrame=function{
loaded =_root.getBytesLoaded();
percent =int(loaded/total*100);
loading.load_txt.text="Loaded"+percent+"%"
loading.gotoAndStop(percent);
if(loaded==total){
_root.gotoAndPlay(2);
}
}

哪里错了？ 最好能帮修改过来

好了：

stop ();
onLoad = function () {
total = _root.getBytesTotal ();
};
onEnterFrame = function () {
loaded = _root.getBytesLoaded ();
percent = int (loaded/total*100);
loading.load_txt.text = "Loaded"+percent+"%";
loading.gotoAndStop (percent);
if (loaded == total) {
_root.gotoAndPlay (2);
}
};

两个函数部分改成function onLoad（）和function onEnterFrame()

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