docs: function(e){
      var inverted, delta, candidatePosition;
  
      inverted = e.webkitDirectionInvertedFromDevice;
      delta = e.wheelDeltaY * (inverted ? 0.8 : -0.8);
      candidatePosition = this.scroller.__scrollTop + delta;
  
      if ((candidatePosition >= 0) && (candidatePosition <= this.scroller.__maxScrollTop)) {
        this.scroller.scrollBy(0, delta, true);
        e.stopPropagation();
      }
  
      return false;
    }