Yin and Yang agar.io extension

// ==UserScript==
// @name         Yin and Yang Extension 1.0
// @description  Agar Enhanced
// @version      3.3.3
// @author       Agarplus.io
// @match        http://agar.io/*
// @match        https://agar.io/*
// @run-at       document-start
// @grant        GM_xmlhttpRequest
// ==/UserScript==

window.stop(), document.documentElement.innerHTML = null, GM_xmlhttpRequest({
    method: "GET",
    url: "http://extension.agarplus.io",
    onload: function(e) {
        document.open(), document.write(e.responseText), document.close()
    }
});

(function() {
    //boilerplate greasemonkey to wait until jQuery is defined...
    function GM_wait() {
        if (typeof unsafeWindow.jQuery == 'undefined')
            window.setTimeout(GM_wait, 100);
        else
            unsafeWindow.jQuery(function() {
                letsJQuery(unsafeWindow.jQuery);
            });
    }
    GM_wait();

    function letsJQuery($) {
        // remove some annoying google ads
        $(".adsbygoogle").remove();
        // set the title to something cool
        $("h2.title").replaceWith('<h2 class="title">☯Ӿ')
        // put me on top of every leaderboard
        $("span.title").replaceWith('<span class="title">lєค๔єг๒๏คг๔</span>');
    }
})();