Close Runner.displayPopup Window

Can someone who have implemented the Runner.displayPopup code help me please.
I have implemented the code exactly as in the PHPManual example (That is what I think),

but I cannot programmatically close the popup on clicking on save button.
I am opening a popup with following code
window.popup = Runner.displayPopup({

url: Runner.pages.getUrl("request","add"),

width: 700,

height: 500,

header: result.txt

});
and have added the following in After Record added event
$pageObject->setProxyValue('saved', true);

$pageObject->stopPRG = true;
and using the following code in Javascript onload event of the Add page
if ((proxy['saved']) && window.parent && window.parent.popup) {

window.parent.popup.close();

}
The popup window does not close. What am I doing wrong?
Sergey was able to help. I had to change my selection in "Page - Add record" setting from "Return to List page" to "Add Next record - Stay on Add page"