// Refresh dos dados
var req;
function loadXMLDoc(url){
	req = null;

if (window.XMLHttpRequest) {
	req = new XMLHttpRequest();
	req.onreadystatechange = processReqChange;
	req.open("GET", url, true); 
	req.send(null);
} else if (window.ActiveXObject) {
	try { req = new ActiveXObject("Msxml2.XMLHTTP.4.0");
	} catch(e) {
	try { req = new ActiveXObject("Msxml2.XMLHTTP.3.0");
	} catch(e) {
	try { req = new ActiveXObject("Msxml2.XMLHTTP");
	} catch(e) {
	try { req = new ActiveXObject("Microsoft.XMLHTTP");
	} catch(e) { req = false; }
	}
	}
}

if (req) {
	req.onreadystatechange = processReqChange;
	req.open("GET", url, true);
	req.send();
}
}
}

function processReqChange(){
	if (req.readyState == 4) {
		if (req.status == 200) {
			document.getElementById("atualiza").innerHTML = req.responseText;
		} else {
			alert("Houve um problema ao obter os dados:\n" + req.statusText);
		}
	}
}

// Refresh do valor
function atualiza(valor){
	loadXMLDoc(valor);
}