/* jquery.scrolly v1.0.0-dev | (c) @ajlkn | MIT licensed */
;(function (e) {
  function u(s, o) {
    var u, a, f
    if ((u = e(s))[t] == 0) return n
    a = u[i]()[r]
    switch (o.anchor) {
      case 'middle':
        f = a - (e(window).height() - u.outerHeight()) / 2
        break
      default:
      case r:
        f = Math.max(a, 0)
    }
    return typeof o[i] == 'function' ? (f -= o[i]()) : (f -= o[i]), f
  }
  var t = 'length',
    n = null,
    r = 'top',
    i = 'offset',
    s = 'click.scrolly',
    o = e(window)
  e.fn.scrolly = function (i) {
    var o,
      a,
      f,
      l,
      c = e(this)
    if (this[t] == 0) return c
    if (this[t] > 1) {
      for (o = 0; o < this[t]; o++) e(this[o]).scrolly(i)
      return c
    }
    ;(l = n), (f = c.attr('href'))
    if (f.charAt(0) != '#' || f[t] < 2) return c
    ;(a = jQuery.extend({ anchor: r, easing: 'swing', offset: 0, parent: e('body,html'), pollOnce: !1, speed: 1e3 }, i)),
      a.pollOnce && (l = u(f, a)),
      c.off(s).on(s, function (e) {
        var t = l !== n ? l : u(f, a)
        t !== n && (e.preventDefault(), a.parent.stop().animate({ scrollTop: t }, a.speed, a.easing))
      })
  }
})(jQuery)