if neither radio button is checked by default, and the user submits
the form without checking one, there will be no value.
the correct way to validate a radio button group is to loop over the
array and determine if one is checked.
<script type="text/javascript">
function checkform(form) {
var numchecked = 0;
for (var i=0; i<form.type.length; i++) {
if (form.type[i].checked) {
numchecked++;
break;
}
}
if (numchecked == 0) {
alert('you did it wrong!');
return false;
} else {
return true;
}
}
</script>
On 5/30/07, Orlini, Robert <[EMAIL PROTECTED]> wrote:
> I have a Javascript that validates two radio buttons.
>
> It worked before, but now it stopped checking. Anything I did wrong here?
> Thanks!
>
> Robert O.
> HWW
>
> Here is the code:
>
> <script language="JavaScript" type="text/javascript">
> <!--
> function checkform ( form )
> {
> // ** START **
> if (form.type.value == "") {
> alert( "Please enter a type." );
> form.type.focus();
> return false ;
> }
> // ** END **
>
> }
> return true ;
> }
> //-->
> </script>
>
>
> <form action="web.cfm" method="POST" onsubmit="return checkform(this);">
>
> <input type="radio" value="trial" name="type">
> <input type="radio" value="sale" name="type">
>
>
>
>
>
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