var req;
var onde;
var pag;
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(onde).innerHTML = req.responseText;
		} else {
			alert(" Houve um problema ao obter os dados:\n\n" + req.statusText);
		}
	}
}



function atualiza(url, destino){
	onde=destino;	
	loadXMLDoc(url);
}