<!--

if (document.images) {
  image6on = new Image();
  image6on.src = "/marvellous/images/nav_home_1.gif";

  image7on = new Image();
  image7on.src = "/marvellous/images/nav_early_1.gif";
  
  image8on = new Image();
  image8on.src = "/marvellous/images/nav_gold_1.gif";
  
  image9on = new Image();
  image9on.src = "/marvellous/images/nav_1880_1.gif";
  
  image10on = new Image();
  image10on.src = "/marvellous/images/nav_contrast_1.gif";

  image11on = new Image();
  image11on.src = "/marvellous/images/nav_postwar_1.gif";
  
  image12on = new Image();
  image12on.src = "/marvellous/images/nav_today_1.gif";
  
  image13on = new Image();
  image13on.src = "/marvellous/images/nav_power_1.gif";

  image6off = new Image();
  image6off.src = "/marvellous/images/nav_home_0.gif";

  image7off = new Image();
  image7off.src = "/marvellous/images/nav_early_0.gif";
  
  image8off = new Image();
  image8off.src = "/marvellous/images/nav_gold_0.gif";
  
  image9off = new Image();
  image9off.src = "/marvellous/images/nav_1880_0.gif";
  
  image10off = new Image();
  image10off.src = "/marvellous/images/nav_contrast_0.gif";

  image11off = new Image();
  image11off.src = "/marvellous/images/nav_postwar_0.gif";
  
  image12off = new Image();
  image12off.src = "/marvellous/images/nav_today_0.gif";
  
  image13off = new Image();
  image13off.src = "/marvellous/images/nav_power_0.gif";

}

function turnOn(imageName) {
  if (document.images) {
    document[imageName].src = eval(imageName + "on.src");
  }
}

function turnOff(imageName) {
  if (document.images) {
    document[imageName].src = eval(imageName + "off.src");
  }
}

// -->