Scroll a web page to the footer (to load endless comments)

scroll_page.js

/*
 * Paste in the developer's console
 */
var i = 0;

function scroll(){
    var scrollingElement = (document.scrollingElement || document.body);
    scrollingElement.scrollTop = scrollingElement.scrollHeight; 
    console.log('Scroll', i++);
}

var interval = setInterval(scroll, 500);

document.addEventListener('click', function(){ 
    clearInterval(interval);
    console.log('Stopped');
});