APEX

Hi expert,

Anyone have idea on how to detecting popup window closed?
I would like to refresh javascript function when popup window closed. How can i do?

My popup window script as below;
var sAppId =$x('pFlowId').value;
var sSession = $x('pInstance').value;
var sAnzCode = document.getElementById('P16104_P_ANZ_CODE');
var link = "f?p=" + sAppId + ":1610409:" + sSession + "::NO:RP,1610409:P1610409_PARAMETER_ANZ_CODE:"+sAnzCode.value+"";

var mysurvey=window.open (link,"mysurvey","scrollbars=yes,menubar=no,location=no,resizable=yes,status=1,width=500,height=500,toolbar=no,menubar=no");

Thank you!