Free jQuery Plugin For Responsive Images: jQuery Picture
jQuery Picture is a tiny (2kb) plugin to add support for responsive images to your layouts. It supports both figure elements with some custom data attributes and the new proposed picture format.
This plugin will be made redundant when the format is approved and implemented by browsers. Lets hope that happens soon but in the meantime this plugin will be kept up to date with latest developments.
You have a choice of two ways to use the plugin, with
figure tags or with the newly proposed and
source tags. Bear in mind that the picture and source tags have only recently been proposed and are not yet valid HTML code.