misc/greasemonkey/virtualblinders.user.js

// ==UserScript==
// @name           VirtualBlinders
// @namespace      Utopiah
// @description    Stay focus, damnit!
// @include        *youtube.com*
// ==/UserScript==

/* TODO

# improve the list of websites to include
## consider include * then refine pattern per task
# make timers (default to 0 sec, value defined via the script or a GM_Value) to be more flexible
## reset timer either manually or per day (i.e.) reset if last set date <5AM

See setTimeout() to make a counter.

*/

GM_xmlhttpRequest({
  method: "GET",
  url: "http://fabien.benetou.fr/pub/currenttask",
  onload: function(response) {
    task = response.responseText;
    if (task == 'Reading\n' || task == 'Programming\n'){
	document.body.innerHTML="You should be focusing on <a href=\"http://fabien.benetou.fr/CognitiveEnvironments/" + task + "\">"+task+"</a> instead,\nare you sure you need that information from that website?";
    }
  }
});