timer.user.js

// ==UserScript==
// @author         Chris
// @co-author      None
// @name           Timer
// @namespace      myTest
// @description    eRepublik Advanced Tools
// @version        1.0.0
// @include        *
// @require        http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js
// ==/UserScript==

alert('Test');
var startTime;
jQuery(document).ready(function {
  startTime = new Date();
  $("form").submit(function() { onSubmit(); });
}

function onSubmit() {
  var endTime = new Date();
  var elapsed = endTime.getTime() - startTime.getTime();
  alert(elapsed/1000 + ' seconds have elapsed');
  jQuery("input[name='q']").val(elapsed/1000);
}