Popup Window - Passing Parameters

Question

I need some help w/ popup windows and passing parameters back and forth.
On page 7 (report page), I have:
- TXT_P7_SALESREP displays the names of the selected sales reps, defaults to All
- CMD_P7_PICKSALESREP opens the pop up window when clicked
- H_P7_SALESREPIDLIST stores the list of the currently selected sales rep ids (used to generate the report)
On page 10 (popup page), I have:
- CBL_P10_SALESREP a check box list of all sales reps (by name)
- H_P10_SALESREPIDLIST stores the list of currently selected sales rep ids
- CMD_P10_OK to submit the changes and close the page
- CMD_P10_CANCEL to close the popup window w/o saving any changes (I got this working already via the close popup window process)
The process should be something like:1) User opens report page, 'All' is displayed in the text box, and H_P7_SALESREPIDLIST contains all the sales rep ids
2) User clicks CMD_P7_PICKSALESREP to change list of sales reps
      2a) Popup window opens & the value of H_P10_SALESREPIDLIST is set to the value of H_P7_SALESREPIDLIST
      2b) CBL_P10_SALESREP has values checked based on the value of H_P10_SALESREPIDLIST (all by default, but a user could change sales reps multiple times)
3) User makes their changes and hits OK
      3a) Value of H_P10_SALESREPIDLIST is updated w/ list of currently selected sales reps
      3b) Value of H_P7_SALESREPIDLIST is updated w/ the value of H_P10_SALESREPIDLIST
      3c) Popup window is closed, returning the user to the report page
      3d) TXT_P7_SALESREP is updated via the contents of H_P7_SALESREPIDLIST
4) User runs the report which is processed/displayed based on the values of H_P7_SALESREPIDLISTI tried putting javascript:popupURL('f?p=&APP_ID.:10:&SESSION.::NO::H_P10_SALESREPIDLIST:&H_P7_SALESREPIDLIST'); in the URL Target for CMD_P7_PICKSALESREP, but it didn't work. I just dont know enough about passing parameters and APEX-specifics to set this up myself. Any help would be appreciated.
I'd prefer to do this w/ as little javascript coding as possible, but I understand it may be necessary.

Answer 1

Hello
Change the URL for CMD_P7_PICKSALESREP to be
javascript:showPopup();
Add the JS below into the HTML Header of page 7 <script>
function showPopup() {
popupURL('f?p=&APP_ID.:10:&SESSION.::NO::H_P10_SALESREPIDLIST:' +  $v('H_P7_SALESREPIDLIST') )
</script>Change the URL for CMD_P10_OK to be
javascript:updateValues();
Add the JS below into the HTML header of page 10 <script>
function updateValeus() {
$s('H_P10_SALESREPIDLIST', $v('CBL_P10_SALESREP') )
window.opener.document.getElementById('H_P7_SALESREPIDLIST').value= $v('H_P10_SALESREPIDLIST')
window.opener.document.getElementById('H_P10_SALESREPIDLIST').value= $v('H_P10_SALESREPIDLIST')
doSubmit();
window.close();
</script>varad