Popup opens - but does nothing

Question

HI. In am on Jdev 11g R3.
I have a popup on my page
<af:popup childCreation="deferred" autoCancel="disabled" id="p1"
                                          binding="#{backingBeanScope.editNews.searchPopup}">
                                    <af:dialog id="d2" type="cancel">
                                        <f:facet name="buttonBar"/>
                                        <af:clientListener method="onCancel" type="dialog"/>
                                        <af:serverListener type="SearchCancelDialogListener"
                                                           method="#{backingBeanScope.editNews.onSearchcancel}"/>
                                        <af:panelGroupLayout layout="vertical" id="pgl2">
                                            <af:query id="qryId1" headerText="Search" disclosed="true"
                                                      value="#{bindings.NamNewsVOCriteriaQuery.queryDescriptor}"
                                                      model="#{bindings.NamNewsVOCriteriaQuery.queryModel}"
                                                      queryListener="#{backingBeanScope.editNews.searchNewsDetails}"
                                                      queryOperationListener="#{backingBeanScope.editNews.onQueryOperation}"
                                                      saveQueryMode="hidden" modeChangeVisible="false"/>
                                        </af:panelGroupLayout>
                                    </af:dialog>
                                </af:popup>
and a button that should open it
<af:commandButton text="commandButton 1" id="cb2">
                                    <af:showPopupBehavior popupId="p1" align="afterEnd" triggerType="action"
                                                          alignId="cb2"/>
                                </af:commandButton>
When I click the button the popup is opened . but !!!!. It is not modal. Clicking ANY button  - DOES NOTHING!!!!. I mean nothing
The popup is a sibling of hte root element in the page fragment that is part of the bounded task flow which is placed later to JSPX page. But placing it as a child of the root element didn't change a thing
Basically it is based on the article from the code corner about how to create a query in the popup
Please advice

Answer 1

As you refer to a sample, have you tried the sample as is?  Does the sample work OK in your version?
What do you mean by modal? 
Modal means you can't work outside the pop up.
Timo