ASP.NET

<script type="text/javascript"><br />
function filter(e) {<br />
var ascii;<br />
if (e && e.charCode) {<br />
ascii = e.charCode;<br />
} else if (event && event.keyCode) {<br />
ascii = event.keyCode;<br />
} else {<br />
return true;<br />
}<br />
<br />
if (ascii < 48 || ascii > 57) return false;<br />
return true;<br />
}<br />
<br />
window.onload = function () {<br />
document.forms[0].elements['test'].onkeypress = filter;<br />
document.forms[0].elements['test'].onpaste =<br />
function () {<br />
return false;<br />
}<br />
}<br />
</script><br />
.....<br />
<form><br />
<input type="text" name="test" /><br />
</form><br />

Regards,

Satips.

Don't walk in front of me, I may not follow;
Don't walk behind me, I may not lead;
Walk beside me, and just be my friend. - Albert Camus