Lazy loader is a jQuery plugin written
in JavaScript. It delays loading of
images in (long) web pages. Images
outside of viewport (visible part of
web page) wont be loaded before user
scrolls to them. This is opposite of
image preloading.
Using lazy load on long web pages
containing many large images makes the
page load faster. Browser will be in
ready state after loading visible
images. In some cases it can also help
to reduce server load.