<script>
B=document.all;
C=document.layers;
T1=new Array("trail1.gif",38,35,"trail2.gif",30,31,"trail3.gif",28,26," trail4.gif",22,21,"trail5.gif",16,16,"trail6.gif",10,10)
nos=parseInt(T1.length/3)
rate=50
ie5fix1=0;
ie5fix2=0;
for (i=0;i<nos;i++)
{
  createContainer("CUR"+i,i*10,i*10,i*3+1,i*3+2,"","<img src='"+T1[i*3]+"' width="+T1[(i*3+1)]+" height="+T1[(i*3+2)]+" border=0>")
}

function createContainer(N,Xp,Yp,W,H,At,HT,Op,St)
{
  with (document)
  {
    write((!B) ? "<layer id='" + N + "' left=" + Xp + " top=" + Yp + " width=" + W + " height=" + H : "<div id='" + N + "'" + " style='position:absolute;left:" + Xp + "; top:" + Yp + "; width:" + W +"; height:" + H + "; ");
  if(St)
  {
  if (C)
    write(" style='");
    write(St+";' ")
  }
  else
  {
    write((B)?"'":"");
    write((At)? At+">" : ">");
    write((HT) ? HT : "");
    if (!Op)
      closeContainer(N)
  }
}

function closeContainer()
{
  document.write((B)?"</div>":"</layer>")
}

function getXpos(N)
{
  return (B) ? parseInt(B[N].style.left) : C[N].left
}

function getYpos(N)
{
  return (B) ? parseInt(B[N].style.top) : C[N].top
}

function moveContainer(N,DX,DY)
{
  c=(B) ? B[N].style :C[N];c.left=DX;c.top=DY
}

function cycle()
{
  //if (IE5)
  if (document.all&&window.print)
  {
    ie5fix1=document.body.scrollLeft;
    ie5fix2=document.body.scrollTop;
  }
  for (i=0;i<(nos-1);i++)
  {
    moveContainer("CUR"+i,getXpos("CUR"+(i+1)),getYpos("CUR"+(i+1)))
  }
}

function newPos(e)
{
  moveContainer("CUR" + (nos-1),(B)?event.clientX + ie5fix1:e.pageX + 2,(B)?event.clientY + ie5fix2:e.pageY + 2)
}

if(document.layers)
  document.captureEvents(Event.MOUSEMOVE)
document.onmousemove=newPos

setInterval("cycle()",rate)

</script>

Nota: lo script utilizza delle immagini incluse nel file zip