Xinha (pronounced like Xena, the Warrior Princess) is a powerful WYSIWYG HTML editor component that works in Mozilla based browsers as well as in MS Internet Explorer. Its configurabilty and extensibility make it easy to build just the right editor for multiple purposes, from a restricted mini-editor for one database field to a full-fledged website editor. Its liberal licence makes it an ideal candidate for integration into any kind of project.
JQuery plugin that allows creation of html client-side using templates. Integration with jquery makes the process simple and compatible with events so that DOM manipulation stays consistent.
See also interaction.js at http://github.com/raid-ox/interaction.js/wikis. This extends some easy interactions to chain such as drag and drop and sorting.
Also usage tutorial at: http://zparse.net.tc/
Converts source code to formatted text with syntax highlighting. Coloured output in HTML, XHTML, RTF, TeX, LaTeX and XML format. 120+ programming languages. Platform independent. Notepad++ plugin available.