Window.opener property from child window to parent window

Question

Hi
When communicating between the child (popup) window to the parent window works fine as long as we pass the static reference to the window.opener
Example :
Main Page
form name = staticform
input name = col1
Popup Page
javascript :
window.opener.staticform.col1.value = some value
How can I use a dynamic reference for the staticform.col1 in the window.opener property to post the value back to the parent window ?
thanks for the help
sarma

Answer 1

Actually, I think tolmank's would work... I've done basically the same thing before, but more like this (if it's generic, it's a good idea to have checks for the things being in existance). This is something I used in a generic color chooser I wrote in Javascript. Had multiple fields in one form using it for selecting different foreground/background colors.
<%
String form = request.getParameter("form");
String fgfield = request.getParameter("fgfield");
String bgfield = request.getParameter("bgfield");
%>
vfnSet = function() {
   if(typeof(window.opener) == 'undefined' || window.opener == null) {
      return;
   if(typeof(window.opener.document.forms['<%= form %>']) == 'undefined') {
      return;
   var oForm = window.opener.document.forms['<%= form %>'];
   if(typeof(oForm.<%= fgfield %>) == 'undefined') {
      return;
   if(typeof(oForm.<%= bgfield %>) == 'undefined') {
      return;
   oForm.<%= fgfield %>.value = document.forms['colorform'].foreground.value;
   oForm.<%= bgfield %>.value = document.forms['colorform'].background.value;
}