Hi Davy770,
Here is simple code:
<html>
<head>
<title>Login</title>
</head>
<BODY>
<SCRIPT LANGUAGE="JavaScript">
<!--
function validate()
{
var errormessage='';
for ( var i=1; i <= document.forms[0].ID.value.length;i++)
{
if (isNaN(parseInt(document.forms[0].ID.value.substring(i-1,20))))
errormessage='ID is corrupt!\n'
}
if ((document.forms[0].password1.value) != (document.forms[0].password2.value))
errormessage='Must be same password!\n'
if (errormessage!=""

alert (errormessage);
else
{
return true;
}
return false;
}
// -->
</SCRIPT>
<form ACTION="default.asp " METHOD="post" onSubmit="return validate();">
<table border="0">
<tr>
<td ALIGN="right">ID:</td>
<td><input TYPE="text" NAME="ID" size="20"></td>
</tr>
<tr>
<td ALIGN="right">Password:</td>
<td><input TYPE="password" NAME="password1" size="20"></td>
</tr>
<tr>
<tr>
<td ALIGN="right">Repeat password:</td>
<td><input TYPE="password" NAME="password2" size="20"></td>
</tr>
<tr>
<td ALIGN="right"></td>
<td>
<input TYPE="submit">
<input TYPE="reset"> </td>
</tr>
</table>
</form>
</body>
</html>
Best regards,
IR
rizaev@canada.com