地震だ！！！！

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<META http-equiv="Content-Type" content="text/html; charset=Shift_JIS">
<META http-equiv="Content-Style-Type" content="text/css">
<title>震えるメインウィンドウ</title>
<script language="JavaScript">
<!--
value = 10;
function shake() {
for ( i = value; i > 0; i-- ) {
window.moveBy(0,i);
window.moveBy(i,0);
window.moveBy(0,-i);
window.moveBy(-i,0);
}
}
//-->
</script>
<style type="text/css">
<!--
body { text-align: center;}
-->
</style>
</head>
<body onload="shake();" bgcolor="#FFFFFF">
<font size="+7">地震だ！！！！ </font>
</body>
</html>