function openIndex(index){
var url = index;
xmlRequest.onreadystatechange = mudancaEstadoIndex;
xmlRequest.open("GET",url,true);
xmlRequest.send(null);
if (xmlRequest.readyState == 1) {
document.getElementById("index").innerHTML = "";
}
return url;
}
function mudancaEstadoIndex(){
if (xmlRequest.readyState == 4){
document.getElementById("index").innerHTML = xmlRequest.responseText;
}
}