Click and Drag SCroll

js

/* click and drag */
$.fn.attachDragger = function () {
  var attachment = false, lastPosition, position, difference;
  $($(this).selector).on("mousedown mouseup mousemove", function (e) {
    if (e.type == "mousedown") attachment = true, lastPosition = [e.clientX, e.clientY]; // jshint ignore:line
    if (e.type == "mouseup") attachment = false;
    if (e.type == "mousemove" && attachment == true) {
      position = [e.clientX, e.clientY];
      difference = [(position[0] - lastPosition[0]), (position[1] - lastPosition[1])];
      $(this).scrollLeft($(this).scrollLeft() - difference[0]);
      $(this).scrollTop($(this).scrollTop() - difference[1]);
      lastPosition = [e.clientX, e.clientY];
    }
  });
  $(window).on("mouseup", function () {
    attachment = false;
  });
};
$(".timeline-container").attachDragger();