Replace the Google logo with a Shkolnik
// ==UserScript==
// @name GoogleShkolnik
// @namespace http://localhost
// @description Replace the Google logo with a Shkolnik
// @version 1.2
// @include http://*.google.*/*
// @include https://*.google.*/*
// @resource logo http://stermcommunity.kl.com.ua/Nothing/1.png
// @grant GM_getResourceURL
// ==/UserScript==
//
var oldLogo = document.getElementById('hplogo');
var newLogo = document.createElement('img');
newLogo.id = "User-Logo";
newLogo.border = 'no'
newLogo.src = GM_getResourceURL ("logo");
oldLogo.parentNode.replaceChild(newLogo, oldLogo);