function Inint_AJAX() {
   try { return new ActiveXObject("Msxml2.XMLHTTP");  } catch(e) {}
   try { return new ActiveXObject("Microsoft.XMLHTTP"); } catch(e) {}
   try { return new XMLHttpRequest();          } catch(e) {}
   alert("XMLHttpRequest not supported");
   return null;
};
var req;
function startCallback() {
  if (req.readyState == 4) {
    if (req.status == 200) {
      document.getElementById("data").innerHTML=req.responseText;
      setTimeout("doStart()", 360000);
    }
  }
}

function doStart() {
  req = Inint_AJAX();
  var url = "http://www.poripuri.com/stat/stat_c.html";
  req.open("GET", url, true);
  req.onreadystatechange = startCallback;
  req.send(null);
};