function prepareLightboxes() {
    $(document).ready(function() {

        $('a.popup').fancybox({
            'overlayShow': true,
            'callbackOnShow': false,
            'zoomSpeedIn': 600,
            'zoomSpeedOut': 500,
            'easingIn': 'easeOutBack',
            'easingOut': 'easeInBack',
            'overlayOpacity': 0.8,
            'hideOnContentClick': false,
            'frameWidth': 550,
            'frameHeight': 350
        });
    });

}