<html>
<body>
<script type="text/vbscript">
Dim x
x=10
document.write(IsNumeric(x) & "<br>")
x=Empty
document.write(IsNumeric(x) & "<br>")
x=Null
document.write(IsNumeric(x) & "<br>")
x="10"
document.write(IsNumeric(x) & "<br>")
x="911 Help"
document.write(IsNumeric(x))
</script>
</body>
</html>