/*!
 * Retina.js v1.3.0
 *
 * Copyright 2014 Imulus, LLC
 * Released under the MIT license
 *
 * Retina.js is an open source script that makes it easy to serve
 * high-resolution images to devices with retina displays.
 */
!(function () {
  function a() {}
  function b(a) {
    return f.retinaImageSuffix + a;
  }
  function c(a, c) {
    if (((this.path = a || ""), "undefined" != typeof c && null !== c))
      (this.at_2x_path = c), (this.perform_check = !1);
    else {
      if (void 0 !== document.createElement) {
        var d = document.createElement("a");
        (d.href = this.path),
          (d.pathname = d.pathname.replace(g, b)),
          (this.at_2x_path = d.href);
      } else {
        var e = this.path.split("?");
        (e[0] = e[0].replace(g, b)), (this.at_2x_path = e.join("?"));
      }
      this.perform_check = !0;
    }
  }
  function d(a) {
    (this.el = a),
      (this.path = new c(
        this.el.getAttribute("src"),
        this.el.getAttribute("data-at2x")
      ));
    var b = this;
    this.path.check_2x_variant(function (a) {
      a && b.swap();
    });
  }
  var e = "undefined" == typeof exports ? window : exports,
    f = {
      retinaImageSuffix: "@2x",
      check_mime_type: !0,
      force_original_dimensions: !0,
    };
  (e.Retina = a),
    (a.configure = function (a) {
      null === a && (a = {});
      for (var b in a) a.hasOwnProperty(b) && (f[b] = a[b]);
    }),
    (a.init = function (a) {
      null === a && (a = e);
      var b = a.onload || function () {};
      a.onload = function () {
        var a,
          c,
          e = document.getElementsByTagName("img"),
          f = [];
        for (a = 0; a < e.length; a += 1)
          (c = e[a]), c.getAttributeNode("data-no-retina") || f.push(new d(c));
        b();
      };
    }),
    (a.isRetina = function () {
      var a =
        "(-webkit-min-device-pixel-ratio: 1.5), (min--moz-device-pixel-ratio: 1.5), (-o-min-device-pixel-ratio: 3/2), (min-resolution: 1.5dppx)";
      return e.devicePixelRatio > 1
        ? !0
        : e.matchMedia && e.matchMedia(a).matches
        ? !0
        : !1;
    });
  var g = /\.\w+$/;
  (e.RetinaImagePath = c),
    (c.confirmed_paths = []),
    (c.prototype.is_external = function () {
      return !(
        !this.path.match(/^https?\:/i) ||
        this.path.match("//" + document.domain)
      );
    }),
    (c.prototype.check_2x_variant = function (a) {
      var b,
        d = this;
      return this.is_external()
        ? a(!1)
        : this.perform_check ||
          "undefined" == typeof this.at_2x_path ||
          null === this.at_2x_path
        ? this.at_2x_path in c.confirmed_paths
          ? a(!0)
          : ((b = new XMLHttpRequest()),
            b.open("HEAD", this.at_2x_path),
            (b.onreadystatechange = function () {
              if (4 !== b.readyState) return a(!1);
              if (b.status >= 200 && b.status <= 399) {
                if (f.check_mime_type) {
                  var e = b.getResponseHeader("Content-Type");
                  if (null === e || !e.match(/^image/i)) return a(!1);
                }
                return c.confirmed_paths.push(d.at_2x_path), a(!0);
              }
              return a(!1);
            }),
            b.send(),
            void 0)
        : a(!0);
    }),
    (e.RetinaImage = d),
    (d.prototype.swap = function (a) {
      function b() {
        c.el.complete
          ? (f.force_original_dimensions &&
              (c.el.setAttribute("width", c.el.offsetWidth),
              c.el.setAttribute("height", c.el.offsetHeight)),
            c.el.setAttribute("src", a))
          : setTimeout(b, 5);
      }
      "undefined" == typeof a && (a = this.path.at_2x_path);
      var c = this;
      b();
    }),
    a.isRetina() && a.init(e);
})();