!(function (o) {
  "use strict";
  o.fn.toTop = function (t) {
    var i = this,
      e = o(window),
      s = o("html, body"),
      n = o.extend(
        {
          autohide: !0,
          offset: 420,
          speed: 500,
          position: !0,
          right: 15,
          bottom: 30
        },
        t
      );
    i.css({ cursor: "pointer" }),
      n.autohide && i.css("display", "none"),
      n.position &&
        i.css({ position: "fixed", right: n.right, bottom: n.bottom }),
      i.click(function () {
        s.animate({ scrollTop: 0 }, n.speed);
      }),
      e.scroll(function () {
        var o = e.scrollTop();
        n.autohide && (o > n.offset ? i.fadeIn(n.speed) : i.fadeOut(n.speed));
      });
  };
})(jQuery);