(function($){
var scrollSpeed = 80;
$(window).on("mousewheel DOMMouseScroll", function(event){
event.preventDefault();
var delta = event.originalEvent.wheelDelta || -event.originalEvent.detail;
var scrollTop = $(window).scrollTop();
var finalScroll = scrollTop - parseInt(delta * scrollSpeed / 120);
$("html, body").stop().animate({
scrollTop: finalScroll
}, 400, 'swing');
});
})(jQuery);
