function Logo(){
	base(this,LSprite,[]);
	this.init();
}
Logo.prototype.init = function(){
	var self = this;

	var backgroundBitmapData = new LBitmapData(dataList["start_bg"],0,0,640,960);
	var backgroundBitmap = new LBitmap(backgroundBitmapData);
	self.addChild(backgroundBitmap);

	var logoBitmapData = new LBitmapData(dataList["logo"],0,0,640,960);
	var logoBitmap = new LBitmap(logoBitmapData);
	logoBitmap.x = LGlobal.width/2-logoBitmap.width/2;
	logoBitmap.y = LGlobal.height*0.87;
	self.addChild(logoBitmap);
	// Util.sFloat(logoBitmap, 0.7);

	self.startBtn = new LSprite();
	var startBtnBitmapData = new LBitmapData(dataList["start_btn"]);
	var startBtnBitmap = new LBitmap(startBtnBitmapData);
	self.startBtn.addChild(startBtnBitmap);
	self.startBtn.x = LGlobal.width/2-startBtnBitmap.width/2;
	self.startBtn.y = LGlobal.height*0.62;
	self.addChild(self.startBtn);
	Util.sFloat(self.startBtn, 0.7);

	self.alpha = 0;
	Util.fadeIn(self, 1);

	self.startBtn.addEventListener(LMouseEvent.MOUSE_DOWN, self.onStartBtnDown);
};
Logo.prototype.onStartBtnDown = function() {
	if(!mySoundPlayer.backgroundIsLoad) {
		mySoundPlayer.onremoved();
		removeChild(mySoundPlayer);
		mySoundPlayer = new SoundPlayer();
		addChild(mySoundPlayer);
	}
	gameStart();
}
Logo.prototype.onmousedown = function(event) {
	var self = event.target;
	var hook = self.getChildByName("hook");
	hook.shoot();
}