// JavaScript Document
var XMLHttp = createXMLHttp();
function createXMLHttp(){
if (window.XMLHttpRequest) { // Mozilla, Safari,...
      http_request = new XMLHttpRequest();
    } else if (window.ActiveXObject) { // IE
      try {
        // 新版的 IE7
        http_request = new ActiveXObject("Msxml2.XMLHTTP");
      } catch (e) {
        try {
          // 舊版的 IE5.6
          http_request = new ActiveXObject("Microsoft.XMLHTTP");
        } catch (e) {}
      }
    }
return http_request;
}
function getData(dataSource, divID)
{
  if(XMLHttp)
  {
    dataSource += "&parm="+new Date();
    XMLHttp.open("GET", dataSource, true);
	XMLHttp.onreadystatechange = function()
    {
      try
      {
        if (XMLHttp.readyState == 4 &&
            XMLHttp.status == 200)
        {
          //var objDiv = document.getElementById(divID);
          //objDiv.innerHTML = XMLHttp.responseText;
        }
      }
      catch(e){}
    }
    try
    {
      XMLHttp.send(null);
    }
    catch(e){}
  }
}