myFancybox = {
  getDefaultSettings: function() {
    var _settings = {
      titleShow: true,
      transitionIn: 'elastic',
      transitionOut: 'elastic',
      speedIn: 150,
      speedOut: 150,
      changeSpeed: 150,
      overlayShow: false,
      hideOnOverlayClick: true,
      hideOnContentClick: true
    };

    return _settings;
  },

  fancybox: function(selector, settings) {
    $(selector).fancybox($.extend({}, myFancybox.getDefaultSettings(), settings));
  }
};

$(function() {
  $("a.myFancybox").fancybox(myFancybox.getDefaultSettings());
});