code: function(nId) {
      // Remove from tracker if there
      var tracker = this._aIntervals || [];
      for(var i=tracker.length-1; i>-1; i--) {
          if(tracker[i] === nId) {
              tracker.splice(i,1);
              clearInterval(nId);
          }
      }
  }
docs: Disables polling mechanism associated with the given interval ID.
  
  @method clearInterval
  @param nId {Number} Interval ID.