// HttpRequest呼び出しタイマー
var g_timerID = setInterval(loadTextFile, g_interval );

function loadTextFile() {
  httpObj = createXMLHttpRequest(displayData);
  if (httpObj) {
    httpObj.open('GET', g_path + 'RealTimeCounter.cgi?contentNum=' + g_contentNum, true);
    httpObj.send(null);
  }
}

function displayData() {
  if ((httpObj.readyState == 4) && (httpObj.status == 200)) {
    var obj = new Object();
    obj = document.getElementById('counter');
    obj.innerHTML = httpObj.responseText;
  }
}