By Yansky
Has 46 other scripts.
// ==UserScript==
// @name Youtube HD
// @namespace userscripts.org
// @description Changes the video to the higher resolution version
// @version 0.4
// @include http://youtube.com/watch?*
// @include http://www.youtube.com/watch?*
// @include http://*.youtube.com/watch?*
// ==/UserScript==
/*var dUrl = document.URL;
var newurl;
if(!dUrl.match('&fmt=18')){
(dUrl.match('&'))? newurl = dUrl.replace(/&/, '&fmt=18&'): newurl = dUrl+'&fmt=18';
window.location.replace(newurl);
}*/
var vidID;
var dUrl = document.URL
vidID = document.location.toString().split("v=")[1].split("&")[0].split("#")[0];
var mp = document.getElementById('movie_player');
var fvars = mp.getAttribute('flashvars');
var l = fvars.slice( fvars.indexOf('&l=')+3, fvars.indexOf( '&', fvars.indexOf('&l=')+3 ) );
var t = fvars.slice( fvars.indexOf('&t=')+3, fvars.indexOf( '&', fvars.indexOf('&t=')+3 ) );
document.getElementById('watch-player-div').innerHTML =
'<embed width="480" height="395" flashvars="sourceid=yw&video_id='+vidID+'&l='+l+'&t='+t+'&ap=%26fmt=18"'+
' allowfullscreen="true" quality="high" bgcolor="#FFFFFF" name="movie_player" id="movie_player" src="/player2.swf" type="application/x-shockwave-flash"/>';
var nB = document.createElement('nobr');
nB.innerHTML = '<a rel="nofollow" class="actionLink" href="#" id="orig">'+
'<span class="actionText" style="text-decoration:none;">Original</span></a>';
document.getElementById('watch-ratings-views').getElementsByTagName('div')[0].appendChild(nB);
document.getElementById('orig').addEventListener('click', function() {
document.getElementById('watch-player-div').innerHTML =
'<embed width="480" height="395" flashvars="sourceid=yw&video_id='+vidID+'&l='+l+'&t='+t+'" allowfullscreen="true" quality="high" bgcolor="#FFFFFF" name="movie_player" id="movie_player" src="/player2.swf" type="application/x-shockwave-flash"/>';
nB.innerHTML = '';
}, false);