if (document.images) {
  image1on = new Image();
  image1on.src = "/images/nav_01r.gif";

  image2on = new Image();
  image2on.src = "/images/nav_02r.gif";

  image3on = new Image();
  image3on.src = "/images/nav_03r.gif";

  image4on = new Image();
  image4on.src = "/images/nav_04r.gif";

  image5on = new Image();
  image5on.src = "/images/nav_05r.gif";

  image6on = new Image();
  image6on.src = "/images/nav_06r.gif";

  image7on = new Image();
  image7on.src = "/images/nav_07r.gif";
  
  image8on = new Image();
  image8on.src = "/images/nav_08r.gif";
  
  image9on = new Image();
  image9on.src = "/images/nav_09r.gif";
  
  image10on = new Image();
  image10on.src = "/images/nav_10r.gif";
  
  image11on = new Image();
  image11on.src = "/images/nav_12r.gif";
 
  image31on = new Image();
  image31on.src = "/images/nav2_01r.gif";
  
  image32on = new Image();
  image32on.src = "/images/nav2_02r.gif";
  
  image33on = new Image();
  image33on.src = "/images/nav2_03r.gif";
  
  image34on = new Image();
  image34on.src = "/images/nav2_04r.gif";
  
  image35on = new Image();
  image35on.src = "/images/nav2_05r.gif";
  
  image36on = new Image();
  image36on.src = "/images/nav2_06r.gif";
  
  image37on = new Image();
  image37on.src = "/images/nav2_08r.gif";
  
  image49on = new Image();
  image49on.src = "/images/nav_11r.gif";
  
  image50on = new Image();
  image50on.src = "/images/nav2_07r.gif";
  
  image51on = new Image();
  image51on.src = "/images/nav_homer.gif";

  image1off = new Image();
  image1off.src = "/images/nav_01.gif";

  image2off = new Image();
  image2off.src = "/images/nav_02.gif";

  image3off = new Image();
  image3off.src = "/images/nav_03.gif";

  image4off = new Image();
  image4off.src = "/images/nav_04.gif";

  image5off = new Image();
  image5off.src = "/images/nav_05.gif";

  image6off = new Image();
  image6off.src = "/images/nav_06.gif";

  image7off = new Image();
  image7off.src = "/images/nav_07.gif";
  
  image8off = new Image();
  image8off.src = "/images/nav_08.gif";
  
  image9off = new Image();
  image9off.src = "/images/nav_09.gif";
  
  image10off = new Image();
  image10off.src = "/images/nav_10.gif";
  
  image11off = new Image();
  image11off.src = "/images/nav_12.gif";
  
  image31off = new Image();
  image31off.src = "/images/nav2_01.gif";
  
  image32off = new Image();
  image32off.src = "/images/nav2_02.gif";
  
  image33off = new Image();
  image33off.src = "/images/nav2_03.gif";
  
  image34off = new Image();
  image34off.src = "/images/nav2_04.gif";
  
  image35off = new Image();
  image35off.src = "/images/nav2_05.gif";
  
  image36off = new Image();
  image36off.src = "/images/nav2_06.gif";
  
  image37off = new Image();
  image37off.src = "/images/nav2_08.gif";
  
  image49off = new Image();
  image49off.src = "/images/nav_11.gif";
  
  image50off = new Image();
  image50off.src = "/images/nav2_07.gif";
  
  image51off = new Image();
  image51off.src = "/images/nav_home.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");
    }
  }
}