Forum libero

// ==UserScript==
// @id             cercatelo-con-google-ritardato
// @name           cercatelo-con-google-ritardato
// @version        1.0
// @namespace      
// @author         
// @description    
// @include        *
// @run-at         document-end
// ==/UserScript==

var ID   = "cercatelo-con-google-ritardato";
var LBL  = "Cercatelo con Google™, ritardato!";

var body = document.body;
var menu = body.appendChild(document.createElement("menu"));
menu.id = ID;
menu.type = 'context';
var menuitem = menu.appendChild(document.createElement('menuitem'));
menuitem.label = LBL;
menu.addEventListener("click", function(event) {
    console.log("click");
    window.location = "http://www.google.com/search?q=" + encodeURIComponent(getSelection().toString());
}, true);
window.addEventListener('contextmenu', function(event) {
    console.log("contextmenu");
}, true);
document.documentElement.setAttribute("contextmenu", ID);
console.log("ok");