| (function(){var pagespeedutils = {MAX_POST_SIZE:131072, sendBeacon:function(a, b, c) { |
| var d; |
| if (window.XMLHttpRequest) { |
| d = new XMLHttpRequest; |
| } else { |
| if (window.ActiveXObject) { |
| try { |
| d = new ActiveXObject("Msxml2.XMLHTTP"); |
| } catch (f) { |
| try { |
| d = new ActiveXObject("Microsoft.XMLHTTP"); |
| } catch (g) { |
| } |
| } |
| } |
| } |
| if (!d) { |
| return !1; |
| } |
| var e = -1 == a.indexOf("?") ? "?" : "&"; |
| a = a + e + "url=" + encodeURIComponent(b); |
| d.open("POST", a); |
| d.setRequestHeader("Content-Type", "application/x-www-form-urlencoded"); |
| d.send(c); |
| return !0; |
| }, addHandler:function(a, b, c) { |
| if (a.addEventListener) { |
| a.addEventListener(b, c, !1); |
| } else { |
| if (a.attachEvent) { |
| a.attachEvent("on" + b, c); |
| } else { |
| var d = a["on" + b]; |
| a["on" + b] = function() { |
| c.call(this); |
| d && d.call(this); |
| }; |
| } |
| } |
| }, getPosition:function(a) { |
| for (var b = a.offsetTop, c = a.offsetLeft;a.offsetParent;) { |
| a = a.offsetParent, b += a.offsetTop, c += a.offsetLeft; |
| } |
| return {top:b, left:c}; |
| }, getWindowSize:function() { |
| return {height:window.innerHeight || document.documentElement.clientHeight || document.body.clientHeight, width:window.innerWidth || document.documentElement.clientWidth || document.body.clientWidth}; |
| }, inViewport:function(a, b) { |
| var c = pagespeedutils.getPosition(a); |
| return pagespeedutils.positionInViewport(c, b); |
| }, positionInViewport:function(a, b) { |
| return a.top < b.height && a.left < b.width; |
| }, getRequestAnimationFrame:function() { |
| return window.requestAnimationFrame || window.webkitRequestAnimationFrame || window.mozRequestAnimationFrame || window.oRequestAnimationFrame || window.msRequestAnimationFrame || null; |
| }}; |
| pagespeedutils.now = Date.now || function() { |
| return +new Date; |
| }; |
| window.pagespeed = window.pagespeed || {}; |
| var pagespeed = window.pagespeed; |
| pagespeed.DelayImages = function() { |
| this.highResReplaced_ = this.lazyLoadHighResHandlersRegistered_ = !1; |
| }; |
| pagespeed.DelayImages.prototype.replaceElementSrc = function(a) { |
| for (var b = 0;b < a.length;++b) { |
| var c = a[b].getAttribute("data-pagespeed-high-res-src"); |
| c && a[b].setAttribute("src", c); |
| } |
| }; |
| pagespeed.DelayImages.prototype.replaceElementSrc = pagespeed.DelayImages.prototype.replaceElementSrc; |
| pagespeed.DelayImages.prototype.registerLazyLoadHighRes = function() { |
| if (this.lazyLoadHighResHandlersRegistered_) { |
| this.highResReplaced_ = !1; |
| } else { |
| var a = document.body, b, c = 0, d = this; |
| this.highResReplaced = !1; |
| "ontouchstart" in a ? (pagespeedutils.addHandler(a, "touchstart", function(a) { |
| b = pagespeedutils.now(); |
| }), pagespeedutils.addHandler(a, "touchend", function(a) { |
| c = pagespeedutils.now(); |
| (null != a.changedTouches && 2 == a.changedTouches.length || null != a.touches && 2 == a.touches.length || 500 > c - b) && d.loadHighRes(); |
| })) : pagespeedutils.addHandler(window, "click", function(a) { |
| d.loadHighRes(); |
| }); |
| pagespeedutils.addHandler(window, "load", function(a) { |
| d.loadHighRes(); |
| }); |
| this.lazyLoadHighResHandlersRegistered_ = !0; |
| } |
| }; |
| pagespeed.DelayImages.prototype.registerLazyLoadHighRes = pagespeed.DelayImages.prototype.registerLazyLoadHighRes; |
| pagespeed.DelayImages.prototype.loadHighRes = function() { |
| this.highResReplaced_ || (this.replaceWithHighRes(), this.highResReplaced_ = !0); |
| }; |
| pagespeed.DelayImages.prototype.replaceWithHighRes = function() { |
| this.replaceElementSrc(document.getElementsByTagName("img")); |
| this.replaceElementSrc(document.getElementsByTagName("input")); |
| }; |
| pagespeed.DelayImages.prototype.replaceWithHighRes = pagespeed.DelayImages.prototype.replaceWithHighRes; |
| pagespeed.delayImagesInit = function() { |
| var a = new pagespeed.DelayImages; |
| pagespeed.delayImages = a; |
| }; |
| pagespeed.delayImagesInit = pagespeed.delayImagesInit; |
| })(); |