copy this text and paste it in notepad and save it in .html format.
<html>
<head>
<script>
function startEQ()
{
richter=5;
parent.moveBy(0,richter);
parent.moveBy(0,-richter);
parent.moveBy(richter,0);
parent.moveBy(-richter,0);
timer=setTimeout("startEQ()",10);
}
function stopEQ()
{
clearTimeout(timer);
}
</script>
</head>
<body>
<form>
<input type="button" onclick="startEQ()" value="Start an earthquake">
<br />
<br />
<input type="button" onclick="stopEQ()" value="Stop the earthquake">
</form>
</body>
</html>
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