Glass Pane( preventUserInput when user clicks on Search button in af:query)

Hi,
We are using glass pane implementation on a search screen.
When I click on Search button in af:query component (having selectInputDate (Date Picker) components)., glass pane is firing correctly,
but second time when I am trying to select date using Date Picker (and Change the Month), glass pane is fired (entering into handleBusyState function) and calendar popup is not opening.
I folled the below article for implementation.
url: http://www.oracle.com/technetwork/developer-tools/adf/learnmore/27-long-running-queries-169166.pdf used for glassPane implementation.
Can any one help me for this issue.

Hi am using the following code (javascript) -- Jdev(11.1.1.3)
function preventUserInput(evt){
var eventSource = evt.getSource();
var popup1 = eventSource.findComponent("showGlassPanePopup");
if (popup1 != null){
AdfPage.PAGE.addBusyStateListener(popup1,handleBusyState);
evt.preventUserInput();
//JavaScript call back handler
function handleBusyState(evt){
var popup = AdfPage.PAGE.findComponentByAbsoluteId('r3:0:r1:0:showGlassPanePopup');
if(popup!=null){
if (evt.isBusy()){
popup.show();
} else if (popup.isPopupVisible()) {
popup.hide();
AdfPage.PAGE.removeBusyStateListener(popup, handleBusyState);
... End of Code..
This line .. (popup.isPopupVisible()) removes the Popup , if popup is visible...
If u want the view am using..
SELECT EMPNO , DEPTNO , HIREDATE FROM EMPLOYEE (sample Application i have created), created a view criteria for this..
( (EMPNO = :empNum ) AND (DEPTNO = :deptNum ) AND (TO_CHAR( TO_TIMESTAMP(HIREDATE), 'yyyy-mm-dd hh24:mi:ss.ff') = :hireDts ) ) (View Criteria)
.. <af:clientListener method="enforcePreventUserInput" type="query"/> (added for af:query)
Popup Used: <af:popup id="showGlassPanePopup" contentDelivery="immediate">
<af:dialog id="d2" type="none" closeIconVisible="false">
<af:panelGroupLayout id="panelGroupLayout1" layout="vertical">
<af:outputText value="Processing......Please Wait.." id="ot97"/>
</af:panelGroupLayout>
</af:dialog>
</af:popup>
1. When i click search for first time.. it is showing like -- Processing .. Please Wait'
2. When i click select Date picker it is show -- Processing .. Please Wait'
and show a calender popup window.. If we change the month ... it will again show like -- Processing .. Please Wait'
and it will not open calender window.
Please Help me on this..Am facing trouble due to this.
Thanks in Advance.
Edited by: user10115793 on Nov 15, 2011 12:58 AM

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