Lazy loader delays loading of images in (long) pages. Images below the fold (far down in the page) wont be loaded before user scrolls down.
This is opposite of image preloading. Using lazy load on long pages containing heavy image content makes page feels snappier. Browser is in ready state after loading visible images. No need to wait for unknown amount of pictures to load.
Download from project page: http://www.appelsiini.net/projects/lazyload
