$(document).ready(function() {    
 $("a[rel=example_group]").fancybox({
                'transitionIn'        : 'none',
                'transitionOut'        : 'none',
                'titlePosition'     : 'over',
                'titleFormat'        : function(title, currentArray, currentIndex, currentOpts) {
                    return '<span id="fancybox-title-over">Image ' + (currentIndex + 1) + ' / ' + currentArray.length + (title.length ? ' &nbsp; ' + title : '') + '</span>';
                }
            });

});