var req_hora_local;

function processReqChange_horalocal() {
  if (req_hora_local.readyState == 4) {
    if (req_hora_local.status == 200) {
      document.getElementById("hora_local").innerHTML = req_hora_local.responseText;   
    }
  }
}

function get_data_horas() {
  url = "/gettime.php";
  if (window.XMLHttpRequest) {
    req_hora_local = new XMLHttpRequest();
    req_hora_local.onreadystatechange = processReqChange_horalocal;
    req_hora_local.open("GET", url, true);
    req_hora_local.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
    req_hora_local.send(null);    
    //req.send(null);
    
  } else if (window.ActiveXObject) {
    req_hora_local = new ActiveXObject("Microsoft.XMLHTTP");
    if (req_hora_local) {
      req_hora_local.onreadystatechange = processReqChange_horalocal;
      req_hora_local.open("POST", url, true);
      req_hora_local.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
      req_hora_local.send();       
    }
  }
}