if (document.images) {

  image1on = new Image();
  //image1on.src = "../_images/nav_main_1on.jpg";
  image1on.src = "http://www.ostermancron.com/_images/nav_main_1on.jpg";
  image2on = new Image();
  //image2on.src = "../_images/nav_main_2on.jpg"; 
  image2on.src = "http://www.ostermancron.com/_images/nav_main_2on.jpg";
  image3on = new Image();
  //image3on.src = "../_images/nav_main_3on.jpg";
  image3on.src = "http://www.ostermancron.com/_images/nav_main_3on.jpg";
  image4on = new Image();
  //image4on.src = "../_images/nav_main_4on.jpg";
  image4on.src = "http://www.ostermancron.com/_images/nav_main_4on.jpg";
  image5on = new Image();
  //image5on.src = "../_images/nav_main_5on.jpg"; 
  image5on.src = "http://www.ostermancron.com/_images/nav_main_5on.jpg";
  image6on = new Image();
  //image6on.src = "../_images/nav_main_6on.jpg";
  image6on.src = "http://www.ostermancron.com/_images/nav_main_6on.jpg";
  image7on = new Image();
  //image7on.src = "../_images/nav_main_7on.jpg";
  image7on.src = "http://www.ostermancron.com/_images/nav_main_7on.jpg";
  
  image1off = new Image();
  //image1off.src = "../_images/nav_main_1off.jpg";
  image1off.src = "http://www.ostermancron.com/_images/nav_main_1off.jpg";
  image2off = new Image();
  //image2off.src = "../_images/nav_main_2off.jpg";
  image2off.src = "http://www.ostermancron.com/_images/nav_main_2off.jpg";
  image3off = new Image();
  //image3off.src = "../_images/nav_main_3off.jpg";
  image3off.src = "http://www.ostermancron.com/_images/nav_main_3off.jpg";
  image4off = new Image();
  //image4off.src = "../_images/nav_main_4off.jpg";
  image4off.src = "http://www.ostermancron.com/_images/nav_main_4off.jpg";
  image5off = new Image();
  //image5off.src = "../_images/nav_main_5off.jpg";
  image5off.src = "http://www.ostermancron.com/_images/nav_main_5off.jpg";
  image6off = new Image();
  //image6off.src = "../_images/nav_main_6off.jpg";
  image6off.src = "http://www.ostermancron.com/_images/nav_main_6off.jpg";
  image7off = new Image();
  //image7off.src = "../_images/nav_main_7off.jpg";
  image7off.src = "http://www.ostermancron.com/_images/nav_main_7off.jpg";

}

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");
    }
  }
}