On VF page populate a list of data on popup window.

Below is the simple way of calling a waypoints plugin and having the page load more Content once you reaches the bottom on SCR

$(document).ready(function() {
    var $loading = $("<div class='loading'><p>Loading more items&hellip;</p></div>"),
    $footer = $('footer'),
    opts = {
        offset: '100%'
    };
    $footer.waypoint(function(event, direction) {
        $footer.waypoint('remove');
        $('body').append($loading);
        $.get($('.more a').attr('href'), function(data) {
            var $data = $(data);
            $('⌗container').append($data.find('.article'));
            $loading.detach();
            $('.more').replaceWith($data.find('.more'));
            $footer.waypoint(opts);
        });
    }, opts);
});

Above is the simple way for lazy loading you can also manage it according to your needs.