Differentiate between scroll up/down in jquery? [duplicate]

Answer 1

There is a simple way to do it without global variables of any kind. MouseWheel event has a property explicitly specifying scrolling direction. Here's how to use it:

   $("#scroll_div").bind("mousewheel",function(ev) {
      var curScrollLeft = $(this).scrollLeft();
      $(this).scrollLeft(curScrollLeft + Math.round(ev.originalEvent.wheelDelta));
    });