2 replies to this topic

[lcobb]

I'm sorry this doesn't have anything to do with SEO, but I thought I would ask anyhow. Has anybody been able to validate radio buttons within a form using javascript. A client is trying to track promotional codes that are sent to their buyers via print and email marketing. The buyer comes to the web site and fills out a registration form. In the form they can enter the promotional code they received or they can check a list of additional radio button options if they didn't receive a promotional code. However, the client doesn't want a promotional code and a radio button selection; and I just can't get the radio button to respond to any kind of javascript validation. Any ideas or strategies would help.

Thank you

Larry

[chrishirst]

errm why do you need to validate radio buttons?

you set the values, you decide which one is selected as default, if the user selects another one that's the only value returned. if none are selected, no value is set and the form radiobutton entity will be empty.
Validation is really only needed when you have users typing in random chararacters instead of a date etc.

what you need is better done server-side

pseudo code example.

if form("textbox") <> "" then
ignore form("radiobutton")
else
GetValueFrom form("radiobutton")
end if

[lcobb]

Hi Chris

I am validating it server-side as well and they get the error message, but once a radio button is selected it cannot be "un-selected". So if they go back to the form, they would have to reset the entire form to clear the radio button selection. I thought I might be able to head off that scenario by doing a little client-side validation. I just didn't and don't understand why the radio button seems to be impervious to client-side inspection.

Your suggestion to ignore the radio button selection might work though. I will think about that and run it by the client.

Thanks

Larry