<!--
if (document.images) {
  image1on = new Image();
  image1on.src = "images/btn1_on.gif";

  image2on = new Image();
  image2on.src = "images/btn2_on.gif";

  image3on = new Image();
  image3on.src = "images/btn3_on.gif";

  image4on = new Image();
  image4on.src = "images/btn4_on.gif";
  
  image5on = new Image();
  image5on.src = "images/btn5_on.gif";
  
  image6on = new Image();
  image6on.src = "images/btn6_on.gif";

  image7on = new Image();
  image7on.src = "images/btn7_on.gif";
  
  image8on = new Image();
  image8on.src = "images/btn8_on.gif";
  
  image9on = new Image();
  image9on.src = "images/btn9_on.gif";

  image1off = new Image();
  image1off.src = "images/btn1_off.gif";

  image2off = new Image();
  image2off.src = "images/btn2_off.gif";

  image3off = new Image();
  image3off.src = "images/btn3_off.gif";

  image4off = new Image();
  image4off.src = "images/btn4_off.gif";

  image5off = new Image();
  image5off.src = "images/btn5_off.gif";

  image6off = new Image();
  image6off.src = "images/btn6_off.gif";

  image7off = new Image();
  image7off.src = "images/btn7_off.gif";

  image8off = new Image();
  image8off.src = "images/btn8_off.gif";

  image9off = new Image();
  image9off.src = "images/btn9_off.gif";
}

function changeImages() {
  if (document.images) {
    for (var i=0; i<changeImages.arguments.length; i+=2) {
      document[changeImages.arguments[i]].src = eval(changeImages.arguments[i+1] + ".src");
    }
  }
}
// -->