/*
  hey, [be]Lazy.js - v1.8.2 - 2016.10.25
  A fast, small and dependency free lazy load script (https://github.com/dinbror/blazy)
  (c) Bjoern Klinggaard - @bklinggaard - http://dinbror.dk/blazy
*/

!function(t,e){"function"==typeof define&&define.amd?define(e):"object"==typeof exports?module.exports=e():t.LazyLoad=e()}(this,function(){function t(t){var o=t._util;o.elements=function(t){for(var e=[],o=(t=t.root.querySelectorAll(t.selector)).length;o--;e.unshift(t[o]));return e}(t.options),o.count=o.elements.length,o.destroyed&&(o.destroyed=!1,t.options.container&&f(t.options.container,function(t){l(t,"scroll",o.validateT)}),l(window,"resize",o.saveViewportOffsetT),l(window,"resize",o.validateT),l(window,"scroll",o.validateT)),e(t)}function e(t){for(var e=t._util,n=0;n<e.count;n++){var s,i=e.elements[n],a=i;s=t.options;var c=a.getBoundingClientRect();s.container&&h&&(a=a.closest(s.containerClass))?s=!!o(a=a.getBoundingClientRect(),v)&&o(c,{top:a.top-s.offset,right:a.right+s.offset,bottom:a.bottom+s.offset,left:a.left-s.offset}):s=o(c,v),(s||r(i,t.options.successClass))&&(t.load(i),e.elements.splice(n,1),e.count--,n--)}0===e.count&&t.destroy()}function o(t,e){return t.right>=e.left&&t.bottom>=e.top&&t.left<=e.right&&t.top<=e.bottom}function n(t,e,o){if(!r(t,o.successClass)&&(e||o.loadInvisible||0<t.offsetWidth&&0<t.offsetHeight))if(e=t.getAttribute(p)||t.getAttribute(o.src)){var n=(e=e.split(o.separator))[m&&1<e.length?1:0],c=t.getAttribute(o.srcset),d="img"===t.nodeName.toLowerCase(),v=(e=t.parentNode)&&"picture"===e.nodeName.toLowerCase();if(d||void 0===t.src){var h=new Image,g=function(){o.error&&o.error(t,"invalid"),a(t,o.errorClass),u(h,"error",g),u(h,"load",w)},w=function(){d?v||i(t,n,c):t.style.backgroundImage='url("'+n+'")',s(t,o),u(h,"load",w),u(h,"error",g)};v&&(h=t,f(e.getElementsByTagName("source"),function(t){var e=o.srcset,n=t.getAttribute(e);n&&(t.setAttribute("srcset",n),t.removeAttribute(e))})),l(h,"error",g),l(h,"load",w),i(h,n,c)}else t.src=n,s(t,o)}else"video"===t.nodeName.toLowerCase()?(f(t.getElementsByTagName("source"),function(t){var e=o.src,n=t.getAttribute(e);n&&(t.setAttribute("src",n),t.removeAttribute(e))}),t.load(),s(t,o)):(o.error&&o.error(t,"missing"),a(t,o.errorClass))}function s(t,e){a(t,e.successClass),e.success&&e.success(t),t.removeAttribute(e.src),t.removeAttribute(e.srcset),f(e.breakpoints,function(e){t.removeAttribute(e.src)})}function i(t,e,o){o&&t.setAttribute("srcset",o),t.src=e}function r(t,e){return-1!==(" "+t.className+" ").indexOf(" "+e+" ")}function a(t,e){r(t,e)||(t.className+=" "+e)}function c(t){v.bottom=(window.innerHeight||document.documentElement.clientHeight)+t,v.right=(window.innerWidth||document.documentElement.clientWidth)+t}function l(t,e,o){t.attachEvent?t.attachEvent&&t.attachEvent("on"+e,o):t.addEventListener(e,o,{capture:!1,passive:!0})}function u(t,e,o){t.detachEvent?t.detachEvent&&t.detachEvent("on"+e,o):t.removeEventListener(e,o,{capture:!1,passive:!0})}function f(t,e){if(t&&e)for(var o=t.length,n=0;n<o&&!1!==e(t[n],n);n++);}function d(t,e,o){var n=0;return function(){var s=+new Date;s-n<e||(n=s,t.apply(o,arguments))}}var p,v,m,h;return function(o){if(!document.querySelectorAll){var s=document.createStyleSheet();document.querySelectorAll=function(t,e,o,n,i){for(i=document.all,e=[],o=(t=t.replace(/\[for\b/gi,"[htmlFor").split(",")).length;o--;){for(s.addRule(t[o],"k:v"),n=i.length;n--;)i[n].currentStyle.k&&e.push(i[n]);s.removeRule(0)}return e}}var i=this,r=i._util={};r.elements=[],r.destroyed=!0,i.options=o||{},i.options.error=i.options.error||!1,i.options.offset=i.options.offset||100,i.options.root=i.options.root||document,i.options.success=i.options.success||!1,i.options.selector=i.options.selector||".lazy-laod",i.options.separator=i.options.separator||"|",i.options.containerClass=i.options.container,i.options.container=!!i.options.containerClass&&document.querySelectorAll(i.options.containerClass),i.options.errorClass=i.options.errorClass||"lazy-error",i.options.breakpoints=i.options.breakpoints||!1,i.options.loadInvisible=i.options.loadInvisible||!1,i.options.successClass=i.options.successClass||"lazy-loaded",i.options.validateDelay=i.options.validateDelay||25,i.options.saveViewportOffsetDelay=i.options.saveViewportOffsetDelay||50,i.options.srcset=i.options.srcset||"data-srcset",i.options.src=p=i.options.src||"data-src",h=Element.prototype.closest,m=1<window.devicePixelRatio,(v={}).top=0-i.options.offset,v.left=0-i.options.offset,i.revalidate=function(){t(i)},i.load=function(t,e){var o=this.options;void 0===t.length?n(t,e,o):f(t,function(t){n(t,e,o)})},i.destroy=function(){var t=this._util;this.options.container&&f(this.options.container,function(e){u(e,"scroll",t.validateT)}),u(window,"scroll",t.validateT),u(window,"resize",t.validateT),u(window,"resize",t.saveViewportOffsetT),t.count=0,t.elements.length=0,t.destroyed=!0},r.validateT=d(function(){e(i)},i.options.validateDelay,i),r.saveViewportOffsetT=d(function(){c(i.options.offset)},i.options.saveViewportOffsetDelay,i),c(i.options.offset),f(i.options.breakpoints,function(t){if(t.width>=window.screen.width)return p=t.src,!1}),setTimeout(function(){t(i)})}});