if (typeof(glowImages) == 'undefined')
  glowImages = new Array();

function moveOverImg(){
  var img, imgName;
  for (var i=0; i < arguments.length; i++){
    imgName = arguments[i];
    img = document.images[imgName];
    img.oldSrc = img.src;
    img.src = glowImages[imgName].src;
  }
}

function moveOffImg(){
  var img;
  for (var i=0; i < arguments.length; i++){
    img = document.images[arguments[i]];
    img.src = img.oldSrc;
  }
}