<!-- 
if (document.images) {

  // Homepage buttons
  oneon = new Image();
  oneon.src = "image/nav-arrow1.gif";
  
  twoon = new Image();
  twoon.src = "image/nav-arrow2.gif";
  
  threeon = new Image();
  threeon.src = "image/nav-arrow3.gif";
  
  fouron = new Image();
  fouron.src = "image/nav-arrow4.gif";
  
}

function turnOn(imageName, target) {
  if (document.images) {
    document[target].src = eval(imageName + "on.src");
	//alert(document[target].src);
  }
}
function turnOff(target, newimg) {
  if (document.images) {
    document[target].src = "image/" + newimg + ".gif";
  }
}
// -->