(function($) {

    $(function() {

        var targets = $('[rel~=tooltip]'),
            target = false,
            tooltip = false,
            title = false;

        $('.acf-postbox, .acf_postbox').on('mouseenter', '[rel~=tooltip]', function() {
            target = $(this);
            tip = target.attr('title');
            tooltip = $('<div class="acffoldflexible-tooltip"></div>');

            if (!tip || tip == '')
                return false;

            target.removeAttr('title');
            tooltip.css('opacity', 0)
                .html(tip)
                .appendTo('body');

            var init_tooltip = function() {
                if ($(window).width() < tooltip.outerWidth() * 1.5)
                    tooltip.css('max-width', $(window).width() / 2);
                else
                    tooltip.css('max-width', 340);

                var pos_left = target.offset().left + (target.outerWidth() / 2) - (tooltip.outerWidth() / 2),
                    pos_top = target.offset().top - tooltip.outerHeight() - 20;

                if (pos_top < 0) {
                    var pos_top = target.offset().top + target.outerHeight();
                    tooltip.addClass('top');
                } else
                    tooltip.removeClass('top');

                tooltip.css({
                        left: pos_left,
                        top: pos_top
                    })
                    .animate({
                        top: '+=10',
                        opacity: 1
                    }, 50);
            };

            init_tooltip();
            $(window).resize(init_tooltip);

            var remove_tooltip = function() {
                tooltip.animate({
                    top: '-=10',
                    opacity: 0
                }, 50, function() {
                    $(this).remove();
                });

                target.attr('title', tip);
            };

            target.on( 'mouseleave', remove_tooltip );
            tooltip.on('click', remove_tooltip);
        });

    });
}(jQuery));