lazysizes.min.js

/*! lazysizes - v0.2.1-pre - 2014-10-21
 Licensed MIT */
!function(a){window.lazySizes=a(),"function"==typeof define&&define.amd&&define(function(){return window.lazySizes})}(function(){"use strict";function a(a,b){var c;window.picturefill?picturefill({reevaluate:!0,reparse:!0,elements:[a]}):window.respimage&&!respimage._.observer?(b&&(c=a[respimage._.ns],c&&(c[b.srcset?"srcset":"src"]=void 0)),respimage({reparse:!0,elements:[a]})):!window.HTMLPictureElement&&window.console&&"complete"==t.readyState&&console.log("Please use a responsive image polyfill, like respimage or picturefill. https://github.com/aFarkas/respimage")}function b(a){u++,a=e(a),C(a,P),C(a,P,!0),clearTimeout(G),G=setTimeout(P,5e3)}function c(a){var b=t.createElement("script"),c=a.parentNode;return a.removeAttribute(j.srcAttr),c.insertBefore(b,a),A(function(){q(a,j.lazyClass)}),b}function d(){n=0,clearTimeout(m)}function e(b,d){var e,f,h,i,k,l,m,n,o,r=E(b,"lazybeforeunveil",{force:!!d});if(!r.defaultPrevented&&(k=b.getAttribute(j.sizesAttr),l=b.getAttribute(j.srcAttr),m=b.getAttribute(j.srcsetAttr),n=b.parentNode,l||m)){if(v.test(b.nodeName)&&(b=c(b)),x.test(b.nodeName||"")){if(B[l])return;B[l]=!0}else if(y.test(b.nodeName||"")){if(o=w.test(n.nodeName||""),!o&&!d&&!b.complete&&b.getAttribute("src")&&b.src&&!b.lazyload)return C(b,D),void C(b,D,!0);if(o)for(e=n.getElementsByTagName("source"),f=0,h=e.length;h>f;f++)i=e[f].getAttribute(j.srcsetAttr),i&&e[f].setAttribute("srcset",i)}k&&("auto"==k?g(b,!0):b.setAttribute("sizes",k),b.removeAttribute(j.sizesAttr),!m&&window.console&&b.getAttribute("srcset")&&console.log("using lazysizes with a `srcset` attribute is not good. 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