/*!
 * 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 t(){}function e(t){return r.retinaImageSuffix+t}function i(t,i){if(this.path=t||"","undefined"!=typeof i&&null!==i)this.at_2x_path=i,this.perform_check=!1
else{if(void 0!==document.createElement){var n=document.createElement("a")
n.href=this.path,n.pathname=n.pathname.replace(h,e),this.at_2x_path=n.href}else{var a=this.path.split("?")
a[0]=a[0].replace(h,e),this.at_2x_path=a.join("?")}this.perform_check=!0}}function n(t){this.el=t,this.path=new i(this.el.getAttribute("src"),this.el.getAttribute("data-at2x"))
var e=this
this.path.check_2x_variant(function(t){t&&e.swap()})}var a="undefined"==typeof exports?window:exports,r={retinaImageSuffix:"@2x",check_mime_type:!0,force_original_dimensions:!0}
a.Retina=t,t.configure=function(t){null===t&&(t={})
for(var e in t)t.hasOwnProperty(e)&&(r[e]=t[e])},t.init=function(t){null===t&&(t=a),t.addEventListener("load",function(){var t,e,i=document.getElementsByTagName("img"),a=i.length,r=[]
for(t=0;a>t;t+=1)e=i[t],e.getAttributeNode("data-at2x")&&e.src&&r.push(new n(e))})},t.isRetina=function(){var t="(-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 a.devicePixelRatio>1?!0:a.matchMedia&&a.matchMedia(t).matches?!0:!1}
var h=/\.[\w\?=]+$/
a.RetinaImagePath=i,i.confirmed_paths=[],i.prototype.is_external=function(){return!(!this.path.match(/^https?\:/i)||this.path.match("//"+document.domain))},i.prototype.check_2x_variant=function(t){var e,n=this
return this.perform_check||"undefined"==typeof this.at_2x_path||null===this.at_2x_path?this.at_2x_path in i.confirmed_paths?t(!0):this.is_external()?t(!1):(e=new XMLHttpRequest,e.open("HEAD",this.at_2x_path),e.onreadystatechange=function(){if(4!==e.readyState)return t(!1)
if(e.status>=200&&e.status<=399){if(r.check_mime_type){var a=e.getResponseHeader("Content-Type")
if(null===a||!a.match(/^image/i))return t(!1)}return i.confirmed_paths.push(n.at_2x_path),t(!0)}return t(!1)},e.send(),void 0):t(!0)},a.RetinaImage=n,n.prototype.swap=function(t){function e(){i.el.complete?(r.force_original_dimensions&&(0==i.el.offsetWidth&&0==i.el.offsetHeight?(i.el.setAttribute("width",i.el.naturalWidth),i.el.setAttribute("height",i.el.naturalHeight)):(i.el.setAttribute("width",i.el.offsetWidth),i.el.setAttribute("height",i.el.offsetHeight))),i.el.setAttribute("src",t)):setTimeout(e,5)}"undefined"==typeof t&&(t=this.path.at_2x_path)
var i=this
e()},t.isRetina()&&t.init(a)}()