// ==UserScript==
// @name         Miniature noelshack gif
// @namespace    http://tampermonkey.net/
// @version      0.2
// @description  try to take over the world!
// @author       You
// @include       http://www.jeuxvideo.com/*
// @grant        none
// @downloadURL none
// ==/UserScript==

imagashack = document.getElementsByClassName('img-shack');
for (var i = 0; i < imagashack.length; i++) {
	img = document.getElementsByClassName('img-shack')[i];
	srcc = img.src;
	alt = img.alt;
	if (img.alt.endsWith("gif")) {
		console.log("il y a un gif ici !");
		srcc = srcc.replace("minis", "fichiers").replace("png", "gif");
		document.getElementsByClassName('img-shack')[i].src = srcc;
	}
}