Uwe Brauer wrote:
Jeremy> Is the preview button not sufficient?
He wants a client-side parser.
Well how can I work offline with it?
MediaWiki offers relatively rich transclusion abilities in pages, and the functionality is widely used on Wikipedia. Even if you can parse and preview pages offline, such previews will obviously not perform transclusions, so you need to understand that all you'll be able to preview is the transformation of style markup (text attributes, tables, etc) to HTML. Images will, likewise, not work.
That said, two MediaWiki markup parsers in Javascript are available:
http://en.wikipedia.org/wiki/User:Pilaf/Live_Preview http://81.5.150.113/wysi/
Cheers,