I'd like to dynamicly parse in text wiki-content. I found JsWiki but its in beta form, and looks like with no community even developers). Any other?
It depends what you mean by wiki content. There are many wiki frameworks just as there are many formats for wiki text. If you're looking for something that parses mediawiki content, such as wikipedia, there's a good list of parsers here. Some are Javascript based and I've had a good experience with one of them, InstaView.
It may be that you're just looking for a form of simple markup, in which case you could try using a library like ShowDown instead.