private void imageInit(){
		//MyTank
		MyTank_Left  = getImage("MyTank_Left.png");
		MyTank_Right = getImage("MyTank_Right.png");
		MyTank_Up    = getImage("MyTank_Up.png");
		MyTank_Down  = getImage("MyTank_Down.png");
		//EnemyTank
		EnemyTank_Left  = getImage("EnemyTank_Left.png");
		EnemyTank_Right = getImage("EnemyTank_Right.png");
		EnemyTank_Up    = getImage("EnemyTank_Up.png");
		EnemyTank_Down  = getImage("EnemyTank_Down.png");
		//OzTank 
		OzTank_Left  = getImage("OzTank_Left.png");
		OzTank_Right = getImage("OzTank_Right.png");
		OzTank_Up    = getImage("OzTank_Up.png"); 
		OzTank_Down  = getImage("OzTank_Down.png");
		//BlackTank
		BlackTank_Left = getImage("BlackTank_Left.png");
		BlackTank_Right = getImage("BlackTank_Right.png");
		BlackTank_Up = getImage("BlackTank_Up.png");
		BlackTank_Down = getImage("BlackTank_Down.png");
		//Bullet
		BlackBullet  = getImage("BlackBullet.png");
		EnemyBullet  = getImage("EnemyBullet.png");
		MyBullet  = getImage("MyBullet.png");
		//BackGround
//		BackGround = getImage("BackGround.png");
	}