I have it on a href of a button
<a href="javascript:validate_form()">
----- Original Message -----
From: "Dave Carabetta" <[EMAIL PROTECTED]>
To: "CF-Talk" <[EMAIL PROTECTED]>
Sent: Tuesday, November 27, 2001 10:52 AM
Subject: Re: OT Quick JS ?
> I'm assuming that you are calling this function in the onSubmit action of
> the form tag? If so, are you typing "onSubmit="return CCValidate(this);"?
I
> don't know the name of the function, so obviously replace "CCValidate"
with
> the function name.
>
> I understand your frustration, as I've been there many times with JS, but
I
> find it's the little nuances of the language that tend to trip me up.
That's
> why I'm asking how you're calling the function. Again, I'm assuming it's
an
> onSubmit action. Is this true? If so, is it typed like I have it above?
What
> happens?
>
>
> ----Original Message Follows----
> From: "Douglas L. Brown" <[EMAIL PROTECTED]>
> Reply-To: [EMAIL PROTECTED]
> To: CF-Talk <[EMAIL PROTECTED]>
> Subject: Re: OT Quick JS ?
> Date: Tue, 27 Nov 2001 10:49:03 -0800
>
> Well here is what I did. As per Nate's suggestion I put the !== to a !=
and
> still it alerts that the value is not correct. As per Dave suggestion I
took
> off the () after the return false and it submit the page and does a write
of
> the word false
>
>
>
> Im frustrated, this should be easy, but is proving diffucult
>
>
> Here is the updated code
> var type = target.card_type[target.card_type.selectedIndex].value;
> var number = target.card_number.value;
> var first_number = number.substring(0,1);
> var first_two_numbers = number.substring(0,2);
> var first_four_numbers = number.substring(0,4);
> if ( type == 'VISA' && parseInt(first_number) != 4){
> alert("Invalid Card Number");
> return false;
> }
> if ( type == 'MAST' && 1* parseInt(first_two_numbers) < 50 &&
> parseInt(first_two_numbers) > 56 ){
> alert("Invalid Card Number");
> return false;
> }
> if (type == 'AMEX' && 1* parseInt(first_two_numbers) != 34 ||
> parseInt(first_two_numbers) != 37){
> alert("Invalid Card Number");
> return false;
> }
> if(type == 'DISC' && parseInt(first_four_numbers) != 6011){
> alert("Invalid Card Number");
> return false;
> }
>
>
>
> Doug
> ----- Original Message -----
> From: "Dave Carabetta" <[EMAIL PROTECTED]>
> To: "CF-Talk" <[EMAIL PROTECTED]>
> Sent: Tuesday, November 27, 2001 10:30 AM
> Subject: Re: OT Quick JS ?
>
>
> > I don't know if this will solve your issue, but I noticed that you have
> > "return false();" instead of "return false;" (without the parens). With
> the
> > parens, you are asking JS to return a function called false, whereas
> without
> > them you are returning a value of false.
> >
> > Just a guess though...
> >
> >
> > ----Original Message Follows----
> > From: "Douglas L. Brown" <[EMAIL PROTECTED]>
> > Reply-To: [EMAIL PROTECTED]
> > To: CF-Talk <[EMAIL PROTECTED]>
> > Subject: Re: OT Quick JS ?
> > Date: Tue, 27 Nov 2001 10:34:14 -0800
> >
> > I am not sure my last comment got sent.
> >
> > The VISA validation works fine by itself, and I believe the problem to
be
> > that it is looking at the rest of the script for the CC validation. I
> placed
> > it below for some insight
> >
> > var type = target.card_type[target.card_type.selectedIndex].value;
> > var number = target.card_number.value;
> > var first_number = number.substring(0,1);
> > if ( type == 'VISA' && parseInt(first_number) != 4){
> > alert("Invalid Card Number");
> > return false();
> > }
> >
> > var first_two_numbers = number.substring(0,2);
> > if ( type == 'MAST' && 1* parseInt(first_two_numbers) < 50 && 1*
> > parseInt(first_two_numbers) > 56 ){
> > alert("Invalid Card Number");
> > return false();
> > }
> >
> > if (type == 'AMEX' && 1* parseInt(first_two_numbers) != 34 || 1*
> > parseInt(first_two_numbers) != 37){
> > alert("Invalid Card Number");
> > return false();
> > }
> > var first_four_numbers = number.substring(0,4);
> > if(type == 'DISC' && 1* parseInt(first_four_numbers) !== 6011){
> > alert("Invalid Card Number");
> > return false
> >
> >
> > Doug
> >
> >
> >
> > ----- Original Message -----
> > From: "Duane Boudreau" <[EMAIL PROTECTED]>
> > To: "CF-Talk" <[EMAIL PROTECTED]>
> > Sent: Tuesday, November 27, 2001 10:12 AM
> > Subject: RE: OT Quick JS ?
> >
> >
> > > I think if you put quotes around the 4 as in:
> > >
> > > if ( type == 'VISA' && first_number != "4")
> > >
> > > Duane
> > >
> > > -----Original Message-----
> > > From: Douglas L. Brown [mailto:[EMAIL PROTECTED]]
> > > Sent: Tuesday, November 27, 2001 1:07 PM
> > > To: CF-Talk
> > > Subject: OT Quick JS ?
> > >
> > >
> > > I have the following script in which I am validating a CC# but it
> always
> > > pops up the prompt even if the first digit is 4, can someone see my
> > > error?
> > >
> > > var type = target.card_type[target.card_type.selectedIndex].value;
> > > var number = target.card_number.value;
> > > var first_number = number.substring(0,1);
> > > if ( type == 'VISA' && first_number != 4){
> > > alert("Invalid Card Number");
> > > return false();
> > > }
> > >
> > >
> > >
> > > <CF_SIGNATURE
> > > NAME="Douglas L. Brown"
> > > EMAIL="[EMAIL PROTECTED]"
> > > PHONE="714.538.6611"
> > > WEB="http://www.carnivorepc.com";>
> > >
> > >
> > >
> >
> >
>
>
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