window.onload = function (e) {
      var spread1 = document.getElementById("<%=FpSpread1.ClientID %>");
      if (document.all) {
        // IE
        if (spread1.addEventListener) {
          // IE9
          spread1.addEventListener("CallBackStart", CallBackStart, false);
          spread1.addEventListener("CallBackStopped", mf_Spd1CallBackStopped, false);
          spread1.addEventListener("ActiveCellChanged", cellChanged, false);
        } else {
          // Other versions of IE and IE9 quirks mode (no doctype set)
          spread1.onCallBackStart = CallBackStart;
          spread1.onCallBackStopped = mf_Spd1CallBackStopped;
          spread1.onActiveCellChanged = cellChanged;
        }
      }
      else {
        // Firefox
        spread1.addEventListener("CallBackStart", CallBackStart, false);
        spread1.addEventListener("CallBackStopped", mf_Spd1CallBackStopped, false);
        spread1.addEventListener("ActiveCellChanged", cellChanged, false);
      }
    }

    function cellChanged(event) {
      console.log("ActiveCellChanged: r = " + event.row + ", c = " + event.col);
    }
    
    function CallBackStart(event) {
      if (event == null) event = window.event;
      //console.log("CallBackStart");
    }

    function mf_Spd1CallBackStopped(event) {
      var spread1 = document.getElementById("<%=FpSpread1.ClientID %>");     
      var r = spread1.GetActiveRow();
      var c = spread1.GetActiveCol();
      console.log("");
      console.log('CallBackStopped: Active row - ' + r + ', col = ' + c)
      spread1.ScrollTo(r, c);
      //switch (event.command) {
      //  case 'FpSpread1_RunSelectDetail':
      //    //cb_SelectDetail();
      //    spread1.ScrollTo(
_Spd1.GetActiveRow(), lvo_Spd1.GetActiveCol());
      //    break;
      //}
    }