|
<HTML>
<HEAD>
<TITLE>Numerals Only</TITLE>
<SCRIPT>
function numeralsOnly(evt) {
evt = (evt) ? evt : event;
var charCode = (evt.charCode) ? evt.charCode : ((evt.keyCode) ? evt.keyCode :
((evt.which) ? evt.which : 0));
if (charCode > 31 && (charCode < 48 || charCode > 57)) {
alert("Enter numerals only in this field.");
return false;
}
return true;
}
</script>
</head>
<body>
<form>
<input type="text" ... onkeypress="return numeralsOnly(event)">
</form>
</body>
</html>
|