<!--

if (document.images) {
  
   image31on = new Image();
   image31on.src = "../images/but_play_1.gif";


   
   image31off = new Image();
   image31off.src = "../images/but_play_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");
  }
}


// -->