Modal Window

leanModal.js is a super simple JQuery plugin for modal windows that works with your CSS. It is built for all the short dialogs, alerts, panels and such associated with an app, that you may want to handle in a modal window. Designed to handle hidden content, and doesn't apply any styles to the target element, other than for displaying and positioning.  

Bootbox.js is a small JavaScript library which allows you to create programmatic dialog boxes using Twitter's Bootstrap modals, without having to worry about creating, managing or removing any of the required DOM elements or JS event handlers.  

Simple Modal is a small plugin to create modal windows. It can be used to generate alert or confirm messages with few lines of code. Confirm configuration involves the use of callbacks to be applied to affirmative action; it can work in asynchronous mode and retrieve content from external pages or getting the inline content. Simple Modal is not a lightbox although the possibility to hide parts of its layout may partially make it similar.