function newImage(arg) {
 if (document.images) {
  rslt = new Image();
  rslt.src = arg;
  return rslt;
 }
}
function changeImagesArray(array) { 
  var d = document; var img;
  for (var i=0; i<array.length; i+=2) {
   img = null; var n = array[i];
   if (d.images) {img = d.images[n];}
   if (!img && d.getElementById) {img = d.getElementById(n);}
   if (img) {img.src = array[i+1];}
 }
}
function changeImages() {
 changeImagesArray(changeImages.arguments);
}