com_com = new Image;
 com_com.src = "images/space05.gif";
 
 add_cart1 = new Image;
 add_cart1.src = "images/Add10.jpg";
 checkout1 = new Image;
 checkout1.src = "images/Checkout10.jpg";

 add_cart2 = new Image;
 add_cart2.src = "images/Add11.jpg";
 checkout2 = new Image;
 checkout2.src = "images/Checkout11.jpg";