form validation

[diong]

I had a problem in validating my asp page..the field HomeTelno is not a
required field..but it always ask for a phone number.

How can i validate the field that the user had inputed numbers not
letters on it if the user has a telephone #.

How can i bypass the validation without asking for a telephone number
if the user has no tel number.

here is the code:

if (parseInt(form1.HomeTelno.value) != form1.HomeTelno.value) {
alert('Please enter a phone number, numbers only');
form1.HomeTelno.focus();
form1.HomeTelno.select();
return (false);
}

Pls help!!!! thanks!

--
diong
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Posted via http://www.codecomments.com
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[Marco]

You can test if the field is empty:

if (form1.HomeTelno.value != "")
{
if (parseInt(form1.HomeTelno.value) != form1.HomeTelno.value) {
alert('Please enter a phone number, numbers only');
form1.HomeTelno.focus();
form1.HomeTelno.select();
return (false);
}
}

In this way if the textbox is empty you bypass the test.
"diong" <di**********@mail.codecomments.com> ha scritto nel messaggio
news:di**********@mail.codecomments.com...

I had a problem in validating my asp page..the field HomeTelno is not a
required field..but it always ask for a phone number.

How can i validate the field that the user had inputed numbers not
letters on it if the user has a telephone #.

How can i bypass the validation without asking for a telephone number
if the user has no tel number.

here is the code:

if (parseInt(form1.HomeTelno.value) != form1.HomeTelno.value) {
alert('Please enter a phone number, numbers only');
form1.HomeTelno.focus();
form1.HomeTelno.select();
return (false);
}

Pls help!!!! thanks!

--
diong
------------------------------------------------------------------------
Posted via http://www.codecomments.com
------------------------------------------------------------------------

[Evertjan.]

diong wrote on 31 mei 2004 in microsoft.public.inetserver.asp.general:

if (parseInt(form1.HomeTelno.value) != form1.HomeTelno.value) {
alert('Please enter a phone number, numbers only');
form1.HomeTelno.focus();
form1.HomeTelno.select();
return (false);
}

Pls help!!!! thanks!

Alert does not work serverside,
so please ask a clientside javascript NG.

--
Evertjan.
The Netherlands.
(Please change the x'es to dots in my emailaddress)