BetterPrank

// ==UserScript==
// @name        BetterPrank
// @namespace   dngsimon
// @include     http://fediafedia.com/prank/win7/*
// @version     1
// @grant       none
// ==/UserScript==


// trash original shit
clearInterval(counter);

//Set own
var interval = setInterval(myTimer, 1000);

//max percentage
var maximum = 100;
var reachMax = false;
//The higher the mighty
var slowness = 400;
//Time in seconds, set higher to start midways
var count = 0;
//Adds some kind of 'random' dropping for extra trolling of the super dau
var randSin = true;
//The precentage goes up and down and up and down... like the sea... hypnotizingly dumb
var sineCurve = false;
var percent;


function myTimer() {
  count++;
  percent = maximum - maximum / (Math.exp(count / slowness));
  if(randSin){
    percent -=  Math.abs(Math.sin(count * 7)) + Math.abs(Math.sin(count * 11)) + Math.abs(Math.sin(count * 13));
    percent = Math.max(percent, 0);
  }
  if(sineCurve){
      var half = maximum / 2;
      percent = half + half * -Math.cos(count / slowness);
  }                        
  if(reachMax){
    percent = Math.ceil(percent);
  }else{
    percent = Math.floor(percent);
  }
  document.getElementById("timer").innerHTML= percent + '%';
}