function check_browser_version(){
  var isIE = navigator.appName.indexOf("Microsoft") != -1;
  if (isIE) {
     var arVersion = navigator.appVersion.split("MSIE");
     var version = parseFloat(arVersion[1]);
     return version;
  }
  return 7;
}

function refresh_d2pbar(){
   var version = check_browser_version();
   if (version <= 6 ) return true;
   var url = "/d2ptb";
   var xmlhttp = getXmlhttp();
   xmlhttp.open('GET', url, true);
   xmlhttp.onreadystatechange = function() {
     if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
         var str = xmlhttp.responseText;
         var obj = document.getElementById("d2ptoolbar");
         if(obj) obj.innerHTML= str;
         //var iFrameBody = document.getElementById("d2ptoolbar").contentWindow.document.body;
         // if (iFrameBody)  {
           //   iFrameBody.innerHTML = str;
             // document.getElementById("d2ptoolbar").style.height = 23;
         // }
     }else{
       return;
     }
   }
  xmlhttp.send(null);
}