WasHoertLagfrei.user.js

// ==UserScript==
// @name           Was Hört Ihr Gerade Lagfrei
// @namespace      spongeforum
// @include        http://spongeforum.de/spieleforum/38-*
// @include        http://spongeforum.de/*form=PostAdd*&threadID=38*
// @grant          GM_xmlhttpRequest
// ==/UserScript==

function loadTitle(e, videoId)
{
    requestURL = "http://gdata.youtube.com/feeds/api/videos/" + videoId;
    //if (text == null)
    GM_xmlhttpRequest({
        method: "GET",
        url: requestURL,
        onload: function(content) {
            var t = content.responseText;
            var title = t.match(/<title.*?>(.*?)<\/title>/);
            e.innerHTML = title != null ? title[1] : 'Zu wenig Mehl';
        }
    });
}

document.addEventListener('DOMContentLoaded',function(e){
    var videos = document.querySelectorAll('iframe.youtube-player');
    for (var i = 0; i < videos.length; ++i) {
        var index = videos[i].id;
        var url = videos[i].src;
        var videoId = url.substring(url.lastIndexOf('/')+1, url.indexOf('?'));
        var n = videos[i].parentNode;
        n.id = 'yt_' + videoId;
        n.style.display = 'none';
        var title = n.parentNode.firstChild.nextSibling; //.container-3
        title = title.firstChild.nextSibling.nextSibling.nextSibling; //.container-content
        title = title.firstChild.nextSibling.nextSibling.nextSibling.firstChild; //a
        title.video = n;
        title.onclick = function(e) {
            var v = e.target.video;
            if (v == null)
                return true;
            v.style.display = v.style.display == 'none' ? 'block' : 'none';
            return false;
        };
        loadTitle(title, videoId);
    }
});