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";
  
  image12on = new Image();
  image12on.src = "/images/nav_11r.gif";
  
  image13on = new Image();
  image13on.src = "/images/nav_12r.gif";  
    
  image14on = new Image();
  image14on.src = "/images/nav_13r.gif";
      
  image15on = new Image();
  image15on.src = "/images/nav_14r.gif";
        
  image16on = new Image();
  image16on.src = "/images/nav_15r.gif";
  
  image17on = new Image();
  image17on.src = "/images/nav_16r.gif";
  
  image11on = new Image();
  image11on.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";
  
  image12off = new Image();
  image12off.src = "/images/nav_11.gif";
  
  image13off = new Image();
  image13off.src = "/images/nav_12.gif";
    
  image14off = new Image();
  image14off.src = "/images/nav_13.gif";
      
  image15off = new Image();
  image15off.src = "/images/nav_14.gif";
        
  image16off = new Image();
  image16off.src = "/images/nav_15.gif";
          
  image17off = new Image();
  image17off.src = "/images/nav_16.gif";
  
  image11off = new Image();
  image11off.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");
    }
  }
}