function muda_dia( day, month, year )
{
	document.getElementById("descricao_calendario").innerHTML = "<img src=\"images/ajax-loader.gif\">";
	
	http.open("GET", "inc/calendario/muda_dia.php?day=" + day + "&month=" + month + "&year=" + year, true);
	http.onreadystatechange = function() {
		handleHttpResponse('descricao_calendario')
	}
	http.send(null);
	
}