As a starting point only
Detecting when you are at the bottom of the page can be done with this code using jQuery.
$(window).scroll(function(){
if ($(window).scrollTop() == $(document).height()-$(window).height()){
alert("We're at the bottom of the page!!");
}
});
Appending to the end of the body can be done with an ajax call
$(window).scroll(function(){
if ($(window).scrollTop() == $(document).height()-$(window).height()){
$.ajax({
url: "your.html",
success: function (data) { $('body').append(data); },
dataType: 'html'
});
}
});
I'm not sure how you intend to get a limitless amount of data?
Part 2 from comments
Chrome doesn't allow local ajax requests without a change to google chrome itself.
The easiest web server to start on a local machine is php web service. Download PHP and create a shortcut to the php.exe with the target of the shortcut being
C:\PHP\php.exe -S Localhost:80
The start in directory would be the location of the html. index.html or index.php need to be in the start in directory and http:// ... localhost will pull up index.php or index.html. I leave the start in blank and copy the shortcut into the folder I want to use as my localhost for my current dev work.
PHP can be downloaded from http://php.net/
The manual for the webserver is here http://www.php.net/manual/en/features.commandline.webserver.php
Without Ajax
Without infinite data (ajax to PHP calls) it is easier, and no need for jquery. iframes can be appended to the end of the page without needing a local server.
Chapter 1