Changing select drop down from 2nd page

I am trying to add a search button next to a select drop down with a HUGE amount of data. The search button opens a popup window that allows you to narrow down choices and select one that is in the drop down(that part works). However I can't seem to pass the parameter selected back to the drop down on the first page to have it as the selected item.

I am working with the scripts in the popup window, and I am trying:

window.opener.document.forms(0).Product(lngBoxNumber).value = x

forms(0) :confused: I think that is the first window.
Product(1) is the name of the drop down.
x is the value I am trying to assign.

Please Help! Thanks.

Try using braces [] instead of parentheses. If that doesn't work I think you'll need to post some more of the code or the urls.

Actually I figured it out.

window.opener.document.forms(0).Product(lngBoxNumber).value = x

This code is fine, but I had meant to call Product1 (the name of the drop down on the form) not Product(1) ... to do this I used a variable call strBoxName = "Product" & i, and then changed the syntax to:

window.opener.document.forms(0).item(strBoxName).value = x

Need to check my variables more carefully.

Thanks for the help Anarchos.