window.addEvent('domready', function(){	
	
	var url = 'http://www.logoetco.com/ajax/logos.php';
 
	
	var timer = 4; 
	
	var periodical, dummy; 
	log = $('diap');
	
	var ajax = new Ajax(url, { 
		update: log,
		method: 'get',
		onComplete: function() {
			log.removeClass('ajax-loading'); 
		},
		onCancel: function() {
			log.removeClass('ajax-loading'); 
		}
	});
	 
	var refresh = (function() {
		dummy = $time() + $random(0, 100);
		log.empty().addClass('ajax-loading');
		ajax.request(dummy); 
	}); 
	
	log.empty().addClass('ajax-loading'); 
	periodical = refresh.periodical(timer * 1000, this); 
	ajax.request($time());
	
});