img1 = new Image();
   img1.src="imgs/backgrnd.jpg";

   imgm0 = new Image();
   imgm0.src="imgs/simbolo0.gif";
   imgm1 = new Image();
   imgm1.src="imgs/encab1.gif";
   imgm2 = new Image();
   imgm2.src="imgs/encab2.gif";
   imgm3 = new Image();
   imgm3.src="imgs/simbolo2.gif";
   imgm4 = new Image();
   imgm4.src="imgs/simbolo3.gif";
   imgm5 = new Image();
   imgm5.src="imgs/simbolo1.gif";
   imgm6 = new Image();
   imgm6.src="imgs/botones.gif";
   
   imgmb1 = new Image();
   imgmb1.src="imgs/terminador.gif";
   imgmb2 = new Image();
   imgmb2.src="imgs/bottom2.gif";

   imgb0 = new Image();
   imgb0.src="imgs/endcap.gif";
   imgb1 = new Image();
   imgb1.src="pc_bg.gif";