window.addEvent('domready', function() {
	$$('.utb a[href^="http://"]').each(function(a) {
		var tipURLs = [];
		var href = a.get('href');
		if(!href.contains(window.location.host) && !tipURLs.contains(href)) {
			tipURLs.push(href);
			var url = href.replace(window.location.protocol + '//','');
			a.addClass('external');
		}
	});
});