var XMLHttpRequestObject = false; 

      if (window.XMLHttpRequest) {
        XMLHttpRequestObject = new XMLHttpRequest();
      } else if (window.ActiveXObject) {
        XMLHttpRequestObject = new ActiveXObject("Microsoft.XMLHTTP");
      }

      function getData(dataSource, divID) 
      { 
        if(XMLHttpRequestObject) {
          var obj = document.getElementById(divID);
          XMLHttpRequestObject.open("POST", dataSource); 
          XMLHttpRequestObject.setRequestHeader('Content-Type', 
            'application/x-www-form-urlencoded');

          XMLHttpRequestObject.onreadystatechange = function() 
          { 
			if (XMLHttpRequestObject.readyState == 4 && 
              XMLHttpRequestObject.status == 200) { 
                obj.innerHTML = XMLHttpRequestObject.responseText; 
            } 
          } 

          XMLHttpRequestObject.send(null); 
        }
      }