Here’s a simple, yet so very useful jQuery plugin used to resize background images on the fly. I’ll definitely be utilizing this one both in upcoming personal and professional projects.
The author does a succinct job of describing the jQuery Backstretch plugin:
Backstretch is a simple jQuery plugin that allows you to add a dynamically-resized background image to any page. The image will stretch to fit the page, and will automatically resize as the window size changes.