HoverAttribute is a jQuery plugin that allows you to make (link-)elements more dynamic by making an attribute of that element show up on hovering. This is foremost intended for <a> tags residing within full-width elements, such as headings or list entries. Amongst several options, it is possible to choose any attribute of a given tag.

Requirements: jQuery Framework
Demo: http://www.afekenholm.se/hoverattribute-jquery-plugin/
License: MIT License