text: // Custom scrolling speed with jQuery
  // Source: github.com/ByNathan/jQuery.scrollSpeed
  // Version: 1.0
  
  (function($) {
      
      jQuery.scrollSpeed = function(step, speed) {
          
          var $document = $(document),
          
              $window = $(window),
              
              $body = $('html, body'),
              
              viewport = $window.height(),
              
              top = 0,
              
              scroll = false;
              
          if (window.navigator.msPointerEnabled)
          
              return false;
              
          $window.on('mousewheel DOMMouseScroll', function(e) {
          
              scroll = true;
              
              if (e.originalEvent.wheelDeltaY < 0 || e.originalEvent.detail > 0)
              
                  top = (top + viewport) >= $document.height() ? top : top += step;
                  
              if (e.originalEvent.wheelDeltaY > 0 || e.originalEvent.detail < 0)
              
                  top = top <= 0 ? 0 : top -= step;
                  
              $body.stop().animate({
              
                  scrollTop: top
                  
              }, speed, 'default', function() {
              
                  scroll = false;
                  
              });
              
              return false;
              
          }).on('scroll', function() {
          
              if (!scroll) top = $window.scrollTop();
              
          }).on('resize', function() {
              
              viewport = $window.height();
              
          });       
      };
      
      jQuery.easing.default = function (x,t,b,c,d) {
      
          return -c * ((t=t/d-1)*t*t*t - 1) + b;
      };
      
  })(jQuery);