(function($) {
	$.fn.rssfeed = function(url, options, fn) {
		var defaults = {
			limit : 10,
			header : true,
			titletag : 'h4',
			date : true,
			content : true,
			snippet : true,
			showerror : true,
			errormsg : '',
			key : null,
			ssl : false,
			linktarget : '_self'
		};
		var options = $.extend(defaults, options);
		return this
				.each(function(i, e) {
					var $e = $(e);
					var s = '';
					if (options.ssl)
						s = 's';
					if (!$e.hasClass('rssFeed'))
						$e.addClass('rssFeed');
					if (url == null)
						return false;
					var api = "http"
							+ s
							+ "://ajax.googleapis.com/ajax/services/feed/load?v=1.0&callback=?&q="
							+ encodeURIComponent(url);
					if (options.limit != null)
						api += "&num=" + options.limit;
					if (options.key != null)
						api += "&key=" + options.key;
					api += "&output=json_xml"
					$.getJSON(api, function(data) {
						if (data.responseStatus == 200) {
							_process(e, data.responseData, options);
							if ($.isFunction(fn))
								fn.call(this, $e);
						} else {
							if (options.showerror)
								if (options.errormsg != '') {
									var msg = options.errormsg;
								} else {
									var msg = data.responseDetails;
								}
							;
							$(e).html(
									'<div class="rssError"><p>' + msg
											+ '</p></div>');
						}
						;
					});
				});
	};
	var _process = function(e, data, options) {
		var feeds = data.feed;
		if (!feeds) {
			return false;
		}
		var html = '';
		var row = 'odd';
		var xml = getXMLDocument(data.xmlString);
		var xmlEntries = xml.getElementsByTagName('item');
		if (options.header)
			html += '<div class="rssHeader">' + '<a href="' + feeds.link
					+ '" title="' + feeds.description + '">' + feeds.title
					+ '</a>' + '</div>';
		html += '<div class="rssBody">' + '<ul>';
		for ( var i = 0; i < feeds.entries.length; i++) {
			var entry = feeds.entries[i];
			var pubDate;
			if (entry.publishedDate) {
				var entryDate = new Date(entry.publishedDate);
				var pubDate = entryDate.toLocaleDateString() + ' '
						+ entryDate.toLocaleTimeString();
			}
			html += '<li class="rssRow ' + row + '">' + '<' + options.titletag
					+ '><a href="' + entry.link + '" title="View this feed at '
					+ feeds.title + '" target="' + options.linktarget + '">'
					+ entry.title + '</a></' + options.titletag + '>'
			if (options.date && pubDate)
				html += '<div>' + pubDate + '</div>'
			if (options.content) {
				if (options.snippet && entry.contentSnippet != '') {
					var content = entry.contentSnippet;
				} else {
					var content = entry.content;
				}
				html += '<p>' + content + '</p>'
			}
			if (xmlEntries.length > 0) {
				var xmlMedia = xmlEntries[i].getElementsByTagName('enclosure');
				if (xmlMedia.length > 0) {
					html += '<div class="rssMedia"><div>Media files</div><ul>'
					for ( var m = 0; m < xmlMedia.length; m++) {
						var xmlUrl = xmlMedia[m].getAttribute("url");
						var xmlType = xmlMedia[m].getAttribute("type");
						var xmlSize = xmlMedia[m].getAttribute("length");
						html += '<li><a href="' + xmlUrl
								+ '" title="Download this media">'
								+ xmlUrl.split('/').pop() + '</a> (' + xmlType
								+ ', ' + formatFilesize(xmlSize) + ')</li>';
					}
					html += '</ul></div>'
				}
				html += '</li>';
			}
			if (row == 'odd') {
				row = 'even';
			} else {
				row = 'odd';
			}
		}
		html += '</ul>' + '</div>'
		$(e).html(html);
	};
	function formatFilesize(bytes) {
		var s = [ 'bytes', 'kb', 'MB', 'GB', 'TB', 'PB' ];
		var e = Math.floor(Math.log(bytes) / Math.log(1024));
		return (bytes / Math.pow(1024, Math.floor(e))).toFixed(2) + " " + s[e];
	}
	function getXMLDocument(string) {
		var browser = navigator.appName;
		var xml;
		if (browser == 'Microsoft Internet Explorer') {
			xml = new ActiveXObject('Microsoft.XMLDOM');
			xml.async = 'false'
			xml.loadXML(string);
		} else {
			xml = (new DOMParser()).parseFromString(string, 'text/xml');
		}
		return xml;
	}
})(jQuery);