(function($){jQuery.scrollSpeed=function(step,speed,easing){var $document=$(document),$window=$(window),$body=$('html, body'),option=easing||'default',root=0,scroll=false,scrollY,scrollX,view;if(window.navigator.msPointerEnabled)
return false;$window.on('mousewheel DOMMouseScroll',function(e){var deltaY=e.originalEvent.wheelDeltaY,detail=e.originalEvent.detail;scrollY=$document.height()>$window.height();scrollX=$document.width()>$window.width();scroll=true;if(scrollY){view=$window.height();if(deltaY<0||detail>0)
root=(root+view)>=$document.height()?root:root+=step;if(deltaY>0||detail<0)
root=root<=0?0:root-=step;$body.stop().animate({scrollTop:root},speed,option,function(){scroll=false;});}
if(scrollX){view=$window.width();if(deltaY<0||detail>0)
root=(root+view)>=$document.width()?root:root+=step;if(deltaY>0||detail<0)
root=root<=0?0:root-=step;$body.stop().animate({scrollLeft:root},speed,option,function(){scroll=false;});}
return false;}).on('scroll',function(){if(scrollY&&!scroll)root=$window.scrollTop();if(scrollX&&!scroll)root=$window.scrollLeft();}).on('resize',function(){if(scrollY&&!scroll)view=$window.height();if(scrollX&&!scroll)view=$window.width();});};jQuery.easing.default=function(x,t,b,c,d){return-c*((t=t/d-1)*t*t*t-1)+b;};})(jQuery);