Java Development Tools

Dear All,

My code relies heavily on popup and navigation is done thru button clicks on popup.

However I notice that clicking escape key at the browser, removes my popup.
Is there a way to prevent these?

<af:resource type="javascript">
  function handleDialog(event)
  {
	if(event.getOutcome ==  AdfDialogEvent.OUTCOME_CANCEL)
	{
	  event.cancel();
	}
  }
</af:resource>

<af:popup id="pop">
  <af:dialog id="pt_d1" type="yesNo">
	<af:panelGroupLayout id="pt_pgl1">
		<!-- more code here -->
	</af:panelGroupLayout>
	<af:clientListener method="handleDialog" type="dialog"/>
  </af:dialog>
</af:popup>

Tried it with the code above but it seems my popups can still be negelected by pressing Escape Key.

Any hints?

JDEV 11G PS4

Thanks