image1 = new Image;
		image2 = new Image;
		//image3 = new Image;
		//image4 = new Image;
  
		image1.src = "images/entra1.jpg";
		image2.src = "images/entra2.jpg";
		//image1.src = "images/esci1.jpg";
		//image2.src = "images/esci2.jpg";