passing data from forms to new windows?

javascript method for passing data to pop-up

[aevea]

Sorry if this is a stupid question or in the wrong place, but I'm very frustrated trying to do some javascript with a form. On one page I have a question with radio buttons and a submit button called "check answer". I'm opening a little pop-up for the answer, and want to pass the the response data to dynamically write parts of the new window depending on the response (right now I just have a generic answer).

I want to do it so I can use the same process for several questions (different htm's for each Q). I don't need to retain any of the data or use any database stuff.

If anyone could help I'd be very grateful.

[txbakers]

The main window has an object name of "opener" so, when you open the new window, any object on the main page is accessible by using the opener property:

if you have a form on the main page called "theForm" and an element called "radio1" you can read the value in the popup as follows:

var myAnswer = document.opener.theForm.radio1.value;

You can also set the values of form elements the same way.

HTH

[aevea]

Thanks, that helps, and I feel like I'm getting closer. But I'm still getting an undefined in my writeln. Do I need to do something special to grab the value of the checked button?

[aevea]

I think I got it, everything seems to be working. Here's the code

<h4>Credited Response: </h4>
<p>
<script language="JavaScript" type="text/javascript">
<!-- hide me
var answer
for (var i=0; i<opener.form1.rg1.length; i++) 
{if (opener.form1.rg1[i].checked) 
{answer = opener.form1.rg1[i].value}};
(answer == null)? document.writeln ("No answer ") : document.writeln ("While " + answer);
// show me -->
</script>
is a perfectly legitimate response, this question has no correct answer</p>

Thanks,
Adam