Greasemonkey script to automatically replay finshed songs in youtube

youtube-replayer.user.js

// ==UserScript==
// @name        YoutubeReplayScript
// @include        http://*.youtube.com/*
// @include        https://*.youtube.com/*
// @require        http://code.jquery.com/jquery-1.7.1.min.js
// @require        https://gist.github.com/raw/2625891/waitForKeyElements.js
// @description Replays songs automatically once it is finished playing.
// @namespace   http://opensourceforgeeks.blogspot.in/
// @version     1
// @grant       none
// ==/UserScript==


(function(){
    function actionFunction(node){
        console.log ("Found replay button. Clicking it!");
        //node.click();
        var clickEvent  = document.createEvent ('MouseEvents');
        clickEvent.initEvent ('click', true, true);
        node[0].dispatchEvent (clickEvent);
        return true;
    }
    console.log ("Waiting for replay button");
    waitForKeyElements("[title|='Replay']", actionFunction);
})();