Dialog

noty is a jQuery plugin that makes it easy to create alert - success - error - warning - information - confirmation messages as an alternative the standard alert dialog. Each notification is added to a queue. (Optional) The notifications can be positioned at the; top - topLeft - topCenter - topRight - center - centerLeft - centerRight - bottom - bottomLeft - bottomCenter - bottomRight There are lots of other options in the API to customise the text, animation, speed, buttons and much more. It

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.