function preloadImages() { //v3.0
  var d = document;

  if(d.images) {

    if(!d.p)
      d.p = new Array();

    var i, j = d.p.length, a = preloadImages.arguments;

    for(i = 0; i < a.length; i++)

      if (a[i].indexOf("#") != 0) {
        d.p[j] = new Image; d.p[j++].src = a[i];
      }
  }
}

function swapImgRestore() { //v3.0
  var i, x, a = document.sr;

  for(i = 0; a && i < a.length && (x = a[i]) && x.oSrc; i++)
    x.src = x.oSrc;
}

function findObj(n, d) { //v4.0
  var p, i, x;

  if(!d) d = document;

  if((p = n.indexOf("?")) > 0 && parent.frames.length) {
    d = parent.frames[n.substring(p + 1)].document;
    n = n.substring(0 , p);
  }

  if( !(x = d[n]) && d.all)
    x = d.all[n];

  for (i = 0; !x && i < d.forms.length; i++) x = d.forms[i][n];

  for(i = 0; !x && d.layers && i < d.layers.length; i++)
    x = findObj(n, d.layers[i].document);

  if( !x && document.getElementById)
    x = document.getElementById(n);

  return x;
}

function swapImage() { //v3.0
  var i, j = 0, x, a = swapImage.arguments;

  document.sr = new Array;

  for(i = 0; i < (a.length - 2); i += 3)
    if ((x = findObj(a[i])) != null) {
      document.sr[j++] = x;
      if(!x.oSrc) x.oSrc = x.src;
      x.src = a[i + 2];
    }
}