Untitled

<script type="text/javascript">
var fishstyle;
function startswimming()
{
fishstyle=document.getElement ById("fish").style;
fishstyle.left=document.body.offsetwidth+ "px";
window.setInterval("swim()", 75);
}
function swim()
{
var left= parseInt(fishstyle.left)-5;
fishstyle.left=left+"px";
if(left<-118)
fishstyle.left=document.body.offsetwidth+"px";
}
</script>

<body style="backgroung-image:url(water.jpg)" onload="startswimming()">
<img scr="fish.gif" alt="fish" id="fish" style="position:absolute;top:70px;" />