Tampermonkey style script for Hacker News

hackedHN.js

// ==UserScript==
// @name        hackedHN.js
// @namespace   https://gist.github.com/embayer/
// @version     1.0
// @description big font sizes, full width and alternate mark inversion rows, colorful points
// @match      https://news.ycombinator.com/
// @copyright  2015, embayer
// ==/UserScript==

(function styleRows() {
  "use strict";
  var trs = document.getElementsByTagName("table")[0].getElementsByTagName("tr");

  var j = 1;
  for(var i = 0; i < trs.length; i++){
    var links = trs[i].getElementsByTagName("a");
    for(var k = 0; k < links.length; k++) {
      links[k].style["line-height"] = "initial";
      links[k].style["font-size"] = "18pt";
    }

    if (j < 4) {
      // trs[i].className = "even";
      trs[i].style['background-color'] = "beige";
      trs[i].style["font-size"] = "30pt";
    } else if (j === 6) {
      j = 0;
    }
    j++;

    if (i === trs.length -4) {
      break;
    }
  }
}());

(function stylePoints() {
  "use strict";
  var greaterThan = function (value) {
      return function(element) {
        if (value > element[0]) {
            return element[1];
        }
        return false;
      };
  };
  var cs = [
      [1000, "fuchsia"],
      [500,"deeppink"],
      [400,"red"],
      [300,"crimson"],
      [200,"firebrick"],
      [40, "orangered"],
      [30,"tomato"],
      [20, "chocolate"],
      [10, "coral"],
      [0, "salmon"]
  ];

  var ps = document.getElementsByClassName('score');
  for (var i=0; i< ps.length; i++) {
    for (var j=0; j< ps[i].childNodes.length; j++)  {
      var reg = new RegExp('^[0-9]*');
      var matches = reg.exec(ps[i].innerHTML);
      var p = parseInt(matches[0]);
      ps[i].style.color = cs.find(greaterThan(p))[1];
    }
  }
}());

(function moveSearch() {
  "use strict";
  var searchForm = document.getElementsByTagName('form')[0];
  searchForm.style["padding-top"] = "5px";
  var loginTd = document.getElementsByTagName('td')[3];
  loginTd.appendChild(searchForm);
}());

(function styleGlobal() {
  "use strict";
  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('body { background-color: #F6F6EF; }');
  addGlobalStyle('span.pagetop { font-size: 20px; }');
  addGlobalStyle('span.rank { font-size: 15pt; }');
  addGlobalStyle('span.comhead { font-size: 15pt; }');
  addGlobalStyle('td.subtext { font-size: 13pt; }');
  addGlobalStyle('td.title { font-size: 19pt; }');
  var hl = document.getElementsByTagName("tr")[1];
  hl.style["background-color"] = "rgb(255, 102, 0)";
  var hn = document.getElementsByTagName("a")[1];
  hn.style.color = "white";
  var th = document.getElementsByTagName("table")[1];
  th.style["padding-top"] = "15px";
  th.style["padding-bottom"] = "15px";
  var logo = document.getElementsByTagName("img")[0];
  logo.style.width = "40px";
  logo.style.height = "40px";
  logo.style.margin = "0 20px 0 15px";
  //document.getElementsByTagName("td")[0].style.display = "none";
}());