// JavaScript Document
<!--

if (document.images) {
  enteron = new Image();
  enteron.src = "images/enter2.jpg";
  
  enteroff = new Image();
  enteroff.src = "images/enter1.jpg";
}


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");
  }
}

// -->