window.addEvent('domready', function() {
	var relogio = function(){
		var req = new Request.HTML({url:'funcoes.php?funcao=relogio',
			method: 'get',
			onSuccess: function(html) {
				$$('.relogio').set('text', '');
				$$('.relogio').adopt(html);
			}
		});
		req.send();
	}

	relogio();
	var atualiza = relogio.periodical(30000);
});