add(signIn);
IdentificationPopoverPanel identificationPopoverPanel = new IdentificationPopoverPanel("identificationPopoverPanel");
add(identificationPopoverPanel);
BootstrapPopoverOptions popoverOptions = new BootstrapPopoverOptions();
popoverOptions.setTitleText(new ResourceModel("navigation.signIn").getObject());
popoverOptions.setContentComponent(identificationPopoverPanel);
popoverOptions.setPlacement(PopoverPlacement.BOTTOM);
popoverOptions.setHtml(true);
popoverOptions.setContainer(".navbar");
signIn.add(new BootstrapPopoverBehavior(popoverOptions));
signIn.add(new ClassAttributeAppender(Model.of("popover-btn")));
// Footer
add(new FooterPanel("footer"));