Auto Page Scroller (Tested on Chrome)

scroll.js

var body = document.body,
    html = document.documentElement;

var pos=0;

window.setInterval(function(){
    var height = Math.max( body.scrollHeight, body.offsetHeight,
                           html.clientHeight, html.scrollHeight, html.offsetHeight );

    console.log("reload");
    pos += window.innerHeight || document.body.clientHeight;
	if (pos>height) location.reload();
	$("body").animate({scrollTop: pos}, '300');

}, 10000);

scroll_bookmark.js

javascript:var jq = document.createElement('script');jq.src = "//code.jquery.com/jquery-latest.min.js";jq.onload=function(){$.getScript("https://rawgit.com/hodduc/36b692c426f0d174e24f/raw/4098ca1c484c7e4db8387b0becdae7494485915f/scroll.js");};document.getElementsByTagName('head')[0].appendChild(jq);if(jQuery){jQuery.noConflict();};