This page deprecates gracefully for non JavaScript browsers. It requires hiding lazy loaded images with css and adding a <noscript> block which contains the real image and it is shown when JavaScript is not enabled. If JavaScript is enabled show() function is called before initializing Lazy Load plugin.
.lazy { display: none; }
$("img.lazy").show().lazyload({ effect : "fadeIn" });
<img class="lazy" src="img/grey.gif" data-original="img/example.jpg" width="765" height="574"> <noscript><img src="img/example.jpg" width="765" height="574"></noscript>