java - Trouble With Getting Timestamp Info From JSP To Database Using Ajax -

i using ajax retrieve elapsed time 2 on clicks , store in table, trying text appear after each click same table well. below servlet , jsp. can please provide input or explanation?

    httpsession session = request.getsession();      string responsetime = request.getparameter("responsetime");     string stimname = request.getparameter("stimname");     string sid = request.getparameter("stimid");     string ar = request.getparameter("act_response");      loginfo log = new loginfo();     log.setuser_response(responsetime);     log.setstimname(stimname);     log.setstimname(sid);     log.setstimname(ar);     logdb.insert(log);      logdb.selectstim(responsetime);      session.setattribute("log", log);      string url = "/testcaserun.jsp";     requestdispatcher dispatcher             = getservletcontext().getrequestdispatcher(url);     dispatcher.forward(request, response); }    var starttime;                  function imageloaded()                  {                      starttime = (new date()).gettime();                      document.getelementbyid('mybutton').disabled = false;                  }                  function submitup() {                      var endtime = (new date()).gettime();                      var elapsed = endtime - starttime;                      submitajaxrequest(elapsed);                      alert("elapsed time: " + elapsed);                  }                  function submitdown() {                      var endtime = (new date()).gettime();                      var elapsed = endtime - starttime;                      submitajaxrequest(elapsed);                      alert("elapsed time: " + elapsed);                  }                   function submitajaxrequest(timeelapsed) {                      $.ajax({                          type: "post", // request type                          url: "ajaxservlet", //request url or servlet mapping url                          data: "timeelapsed" + timeelapsed, // request data send                          success: function(msg) { // on successful                              $('#srverresponse').text(msg);                          }                      });                  }    <input type="image" onclick="submitdown();" src="images.png>