Red Read Line

shows you how far you scrolled

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name        Red Read Line
// @namespace   http://q-garden.de/greases
// @description shows you how far you scrolled
// @include     http://*
// @include     https://*
// @include     ftp://*
// @version     1
// @grant       none
// ==/UserScript==

// load and execute from http://stackoverflow.com/q/6834930
var load,
execute,
loadAndExecute;
load = function (a, b, c) {
  var d;
  d = document.createElement('script'),
  d.setAttribute('src', a),
  b != null && d.addEventListener('load', b),
  c != null && d.addEventListener('error', c),
  document.body.appendChild(d);
  return d
},
execute = function (a) {
  var b,
  c;
  typeof a == 'function' ? b = '(' + a + ')();' : b = a,
  c = document.createElement('script'),
  c.textContent = b,
  document.body.appendChild(c);
  return c
},
loadAndExecute = function (a, b) {
  return load(a, function () {
    return execute(b)
  })
};
loadAndExecute('//ajax.googleapis.com/ajax/libs/jquery/1.6.2/jquery.min.js', function () {
  $('body').append('<div id=\'redreadline\'></div>');
  
  var update;
  var scrollpos = 0;
  


  $(window).scroll(function () {
    $('#redreadline').css({"top":scrollpos, "opacity":"1"}).stop().clearQueue().fadeIn(0).fadeOut(500);
    clearTimeout(update);
    update = setTimeout(resetScroll, 300);
  });
  
  function resetScroll(){
    scrollpos = document.documentElement.scrollTop;
    //$('#redreadline').css({"top":scrollpos});
  }
  
  function addGlobalStyle(css) {
    var head,
    style;
    head = document.getElementsByTagName('head') [0]; 
    if (!head) {
      return;
    }
    style = document.createElement('style');
    style.type = 'text/css';
    style.innerHTML = css;
    head.appendChild(style);
  };
  addGlobalStyle('#redreadline{position: absolute; left:0; right:0; height:'+window.innerHeight+'px; width:100vw; margin:-3px; pointer-events:none; box-shadow: 0px 0px 15px 0px rgba(255, 0, 0, 1);opacity:0;}');
});