// ==UserScript==
// @name         Hacker News add "best" filter
// @namespace    graphen
// @version      0.2.1
// @description  Adds top navigation link to sort by most upvoted news
// @author       Graphen
// @include      /https?:\/\/news\.ycombinator\.com/(?!best)(newest|newcomments|show|ask|jobs)?/
// @grant        none
// ==/UserScript==
(function() {
'use strict';
var topNavi = document.querySelector(".pagetop");
var spacing = document.createTextNode(" | ");
var bestLink = document.createElement("a");
var bestLinkText = document.createTextNode("best");
bestLink.href = "best";
bestLink.appendChild(bestLinkText);
topNavi.appendChild(spacing);
topNavi.appendChild(bestLink);
})();