markItUp! 
Posted on March 27, 2008
Universal Markup Editor
http://markitup.jaysalvat.com/
markItUp! is a JavaScript plugin built on the jQuery library. It allows you to turn any textarea into a markup editor. Html, Textile, Wiki Syntax, Markdown, BBcode or even your own Markup system can be easily implemented.
markItUp! is not meant to be a “Full-Features-Out-of-the-Box”-editor. Instead it is a very lightweight, customizable and flexible engine made to meet the developer’s needs in their CMSes, blogs, forums or websites. markItUp! is not a WYSIWYG editor, and it never will be.
Features:
- Lightweight, powerful and flexible editor engine.
- Fast and unobtrusive integration.
- Support for keyboard shortcuts.
- Toolbar and drop down menus.
- Fully customizable and scriptable.
- Editor’s features callable from any place.
- Ajax dynamic preview.
- Customizable Skins.