onClipEvent (load) {
this._rotation = Math.random ()*360;
this._xscale = Math.random ()*1000;
this._yscale = _xscale;
this._alpha = _xscale/20;
}

onClipEvent (enterFrame) {
this._xscale += this._xscale * 0.05;
if (this._xscale > 1000) {
this._xscale -= 1000;
this._rotation = Math.random ()*360;
}
this._alpha = _xscale/20;
this._yscale = _xscale;//ＸとＹを同じ縮尺で表示するため
}