bewegen

[Fredo]

Hab ich gemacht:
<script type="text/javascript">
function runter(a, b, i) {

a = a + 1;
b = b + 1;

document.getElementsByTagName("img").style.left = a + "px";
document.getElementsByTagNames("img").style.top = b + "px";

i++;

if (i >= 2000) {
window.clearInterval(moving);
}
moving = window.setInterval("runter(a,b,i)", 10);

}

</script>

klappt trotzdem nicht! warum?