<!-- KBK-->

if (document.images) {

//...down the rabbit hole

  image1on = new Image();
  image1on.src = "images/photography-on.gif";
 
  image2on = new Image();
  image2on.src = "images/creative-on.gif";

  image3on = new Image();
  image3on.src = "images/about-on.gif";

  image4on = new Image();
  image4on.src = "images/contact-on.gif";
  
     
  
  
  image1off = new Image();
  image1off.src = "images/photography-off.gif";

  image2off = new Image();
  image2off.src = "images/creative-off.gif";

  image3off = new Image();
  image3off.src = "images/about-off.gif";
  
  image4off = new Image();
  image4off.src = "images/contact-off.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");
  }
}