function showHorario(a, v){
	
	var v = v == undefined || v == null ? null : v;
	var url = window.defaultUrl + "/un.horarios.php?idensino=" + a + (v != null ? "&serie=" + v : "");
	
	showLoading();
	
	var ajaxHorarios = new Ajax.getTransport();
	ajaxHorarios.open("GET", url, true);
	ajaxHorarios.setRequestHeader('Content-Type', 'text/xml; charset=iso-8859-1');	
	ajaxHorarios.onreadystatechange = function(responseText){
		if(ajaxHorarios.readyState == 4){
			$("resultHorario").innerHTML = ajaxHorarios.responseXML.getElementsByTagName("resultado")[0].childNodes[0].nodeValue;
			hideLoading();
		}
	}
	ajaxHorarios.send(null);
	
	if((s=$("dependencia")) != null)
	{
		s.style.display = "block";
	}
	
}

function showLoading(){
	$("aguarde").style.display = "block";
	$("resultHorario").innerHTML = "";
}

function hideLoading(){
	$("aguarde").style.display = "none";
}