Violentmonkey script that helps you keep track of surfing time

1. Install Violentmonkey extension for your favorite browser.
2. Open dashboard and create new script.
3. Copy code from index.js and paste it into the script.
4. Enable scripts in the control panel of Violentmonkey.

To change the site for counting the time of surfing, you can change the field @match with to any regular expression.

// ==UserScript==
// @name Counter
// @namespace Violentmonkey Scripts
***// @match *://www.google.com/*
// @grant none
// @require https://code.jquery.com/jquery-1.12.4.js
// @require https://code.jquery.com/ui/1.12.1/jquery-ui.js
// ==/UserScript==