Unveil.js is a light weight (2kb only) lazy load Zepto/jQuery plugin that help to improve your apps performance by delaying the loading of images which is not yet inside your viewport.
With Unveil.js your site and apps can save all the unnecessary image loading resources and also support lazy load image retina version by using data-src-retina attribute.
One single line plugin function call $(“img”).unveil(), it also has a callback function for you to do something after the image loaded. For me its quite handy and useful, so how you think?
Thanks Luis Almeida who created this cool lazy load image plugin for free and open source, enjoy the lazy freebie hehe~
Unveil.js is released under MIT license.
Source: Read more about Unveil.js