jQuery - Automatically load content on scroll

Some websites such as Twitter loads content on scroll. Which means that all content is dynamically loaded on a single page as long as you scroll down.

Here’s how you can replicate this effect on your website:

var loading = false;
$(window).scroll(function(){
    if((($(window).scrollTop()+$(window).height())+250)>=$(document).height()){
        if(loading == false){
            loading = true;
            $('#loadingbar').css("display","block");
            $.get("load.php?start="+$('#loaded_max').val(), function(loaded){
                $('body').append(loaded);
                $('#loaded_max').val(parseInt($('#loaded_max').val())+50);
                $('#loadingbar').css("display","none");
                loading = false;
            });
        }
    }
});
$(document).ready(function() {
    $('#loaded_max').val(50);
});

Source: [http://fatfolderdesign.com/173/content-load-on-scroll-with-jquery