Antelle
jQuery plugin that simplifies creation of sophisticated password fields.
Are You Sure? – a dirty forms check plugin
Chris Dance (codedance) at PaperCut Software
Are-you-sure is simple light-weight dirty forms JQuery Plugin for modern browsers. It helps prevent users from loosing unsaved form changes by prompting the user to save/submit. It's dependency free and designed for modern browsers... just the features you need and nothing more! See the project page and demo for usage and examples.
Daniel Imhoff
jQuery plugin for getting, setting, and replacing the selected text in input fields and textareas.