code: function(e, oSelf) {
      if(ua.opera || (navigator.userAgent.toLowerCase().indexOf("mac") !== -1) && (ua.webkit < 420)) {
          var nKey = Ev.getCharCode(e);
          // arrow down
          if(nKey == 40) {
              Ev.stopEvent(e);
          }
          // arrow up
          else if(nKey == 38) {
              Ev.stopEvent(e);
          }
      }
  }
docs: Handles keypress events on the TABLE. Mainly to support stopEvent on Mac.
  
  @method _onTableKeypress
  @param e {HTMLEvent} The key event.
  @param oSelf {YAHOO.wiget.DataTable} DataTable instance.
  @private