public void paint(Graphics g)
	{
		if ( main_img == null )
		{
			return;
		}
		
		g.drawImage(main_img,0,10,this);
		g.drawImage(button1,70,180,this);
		g.drawImage(button2,70,320,this);

		//g.drawImage(res_img[2],10,35,this);
	}