function getTime(JSONData) {
      if (JSONData != null)
      {
        alert(TimeStampToDate(JSONData.Result.Timestamp));
      }
  }
  
  function TimeStampToDate(xmlDate)
  {
      return new Date(xmlDate);
  }
  
  function dynamicTag()
  
  {
          
      request = "http://developer.yahooapis.com/TimeService/V1/getTime?appid=YahooDemo&output=json&callback=getTime&format=ms";
      var head = document.getElementsByTagName("head").item(0);
      var script = document.createElement("script");
      script.setAttribute("type", "text/javascript");
      script.setAttribute("src", request);
      head.appendChild(script);
  
  }