What is bLazy? A lazy loading and multi-serving image script. bLazy is a lightweight lazy loading image script (less than 1.2KB minified and gzipped). It lets you lazy load and multi-serve your images so you can save bandwidth and server requests. The user will have faster load times and save data loaded if he/she doesn't browse the whole page.
For a full list of options, functions and examples go to the blog post: http://dinbror.dk/blog/blazy.