onLoad="start()"

<div id="point1" STYLE="position:absolute;visibility:visible;">
<img src="nf_rotate.gif" width=120 height=120 border=0>
</div>

<div id="point2" STYLE="position:absolute;visibility:visible;">
<img src="nf_rotate.gif" width=120 height=120 border=0>
</div>


<script language="JavaScript">
<!-- Begin
var xPosLeft = 20;
var xPosRight = 800;
var step = 1;
var delay = 30;
var yPos = 0;
var height = 0;
var offset = 0;
var yon = 0;

var name = navigator.appName;


yPos = document.getElementsByTagName("body")[0].clientHeight;
xPosRight = document.getElementsByTagName("body")[0].clientWidth - 150;
document.getElementById("point1").style.top = yPos;
document.getElementById("point2").style.top = yPos;


function changePos() {
if (yon == 0) {
yPos = yPos - step;
}
else {
yPos = yPos + step;
}

height = document.getElementsByTagName("body")[0].clientHeight;
offset = document.getElementById("point1").offsetHeight;

if (yPos < 0) {
yon = 1;
yPos = 0;
}
if (yPos >= (height - offset)) {
yon = 0;
yPos = (height - offset);
}

document.getElementById("point1").style.left = xPosLeft;
document.getElementById("point1").style.top = yPos + document.getElementsByTagName("body")[0].scrollTop;
document.getElementById("point2").style.left = xPosRight;
document.getElementById("point2").style.top = yPos + document.getElementsByTagName("body")[0].scrollTop;
}

function start()
{
loopfunc();
}
function loopfunc()
{
changePos();
setTimeout('loopfunc()',delay);
}
// End -->
</script>

Original: ??
DOM Kompatibilität by nightfire

kopieren Sie bitte den Code.