а самому подправить слабо? код из файла шлейфа переправлен под современность
http://web-mastery.info/scripts/javascript-67.html
<html>
<head>
<title>След курсора</title>
<meta http-equiv="Content-Type" content="text/html; charset=windows-1251">
<style type="text/css">
<!--
body
{background-color:#FAFDFF; margin:0px; padding:0px; font-size:12px; color:#000; font-family:Arial, Helvetica, sans-serif;}
b
{color:#00008B}
.promo
{color:#AF0032; font-size:12px; text-align:center; margin-top:20px}
.promo a:link, .promo a:visited, .promo a:hover {color:#0066CC; text-decoration:underline;}
-->
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</style>
</head>
<body>
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<center>
<script language="JavaScript1.2">
var trailLength = 10; var path = "cur.gif"; var isIE = false,isNav = false,range = "all.",style = ".style",i,d = 0;
var topPix = ".top",leftPix = ".left",images,storage
if (document.all) {
isIE = true }
function initTrail() {
images = new Array()
for (i = 0; i < parseInt(trailLength); i++) {
images[i] = new Image()
images[i].src = path
}
storage = new Array()
for (i = 0; i < images.length*3; i++) {
storage[i] = 0
}
for (i = 0; i < images.length; i++) {
document.write('<div id="obj' + i + '" style="position: absolute; z-Index: 100; height: 0; width: 0"><img src="' + images[i].src + '"></div>')}
trail()
}
function trail() {
for (i = 0; i < images.length; i++) {
eval("document." + range + "obj" + i + style + topPix + "=" + storage[d])
eval("document." + range + "obj" + i + style + leftPix + "=" + storage[d+1])
d = d+2
}
for (i = storage.length; i >= 2; i--) storage[i] = storage[i-2]
d = 0
var timer = setTimeout("trail()",10) }
<!-- web-mastery.info -->
function processEvent(e) {
if (isIE) {
storage[0] = window.event.y+document.body.scrollTop+0
storage[1] = window.event.x+document.body.scrollLeft+0
} else {
storage[0] = e.pageY
storage[1] = e.pageX}
}
if (isNav) {document.captureEvents(Event.MOUSEMOVE) }
initTrail();
document.onmousemove = processEvent
</script>
</center>
</body>
</html>