/* grab yt thumbnails
	http://jquery-howto.blogspot.com/2009/05/jyoutube-jquery-youtube-thumbnail.html
*/
$.extend({
	jYoutube: function (url, size) {
		if (url === null) { return ""; }
		size = (size === null) ? "big" : size;
		var vid;
		var results;
		results = url.match("[\\?&]v=([^&#]*)");
		vid = (results === null) ? url : results[1];
		if (size == "small") {
			return "http://img.youtube.com/vi/" + vid + "/2.jpg";
		} else {
			return "http://img.youtube.com/vi/" + vid + "/0.jpg";
		}
	}
});