(You) counter

you.userscript

// ==UserScript==
// @name        you counter
// @namespace   ben
// @include     https://boards.4chan.org/*
// @include     http://boards.4chan.org/*
// @version     1
// @grant       GM_getValue
// @grant       GM_setValue
// @grant       GM_addStyle
// @require http://code.jquery.com/jquery-1.9.1.js
// @require http://code.jquery.com/ui/1.10.3/jquery-ui.js
// ==/UserScript==
/*jshint multistr: true */

adder = null;
remover = null;
allTimeYou = GM_getValue("totalYou",null);

function count(){
	num = $('.you').length;
	console.log('counting');
  console.log(num);
  return num;
}
function write(input){
if (adder !== null){
  if (adder !== 0){
    storage();
  }
}
}

function difference(){
  var here = count();
  if (adder !== null){
   remover = (here - adder);
   adder = (here - adder) + adder;
   console.log('new value ' + adder);
  }
  else{
    adder = here;
    console.log('starting adder');
  }
   
  }

function render(){
  difference();
  write(adder);
   console.log(allTimeYou);
 
}
function storage(){
  var store = GM_getValue("youHashTable",null);
  if (store === null){
    store = {};
    store[window.location.href] = adder;
    }
  else{
    if (store[window.location.href] !== 0){
    store[window.location.href] = store[window.location.href] + remover;}
    else{
     store[window.location.href] = adder;
    }
  }
  GM_setValue('youHashTable',store);
  console.log(store);
  var total = 0;
  for (var property in store){
    total += store[property];
  }
  allTimeYou = total;
  GM_setValue('totalYou',allTimeYou);
}


var newHTML         = document.createElement ('div');
newHTML.innerHTML   = '                 \
    <div id="gmYouCounter">             \
        <p>"Total You Count:" </p>      \
    </div>                              \
';

document.body.appendChild (newHTML);
document.getElementById("gmYouCounter").innerHTML="(You) Count: " + allTimeYou;
 
GM_addStyle ( "                         \
    #gmYouCounter {                     \
        position:       fixed;          \
        background-color: #1b1b1b;      \
        color: #cccaca;                 \
        top:            5px;            \
        right:           5px;           \
        font-size: 16px;                \
    }                                   \
" );
setInterval (render,30000);