Editing file over the web

I'm not sure whether this is the correct section to post this problem.... anyway.... yesterday one of my friend demo to me a lotus based application for document management system.... it is a web based application. User just invoke any of his/her favorite browser, login and then click on the document to be edited. Then the browser ( IE or Netscape ) will invoke the appropriate editor for the document (e.g Microsoft Word ). When the user save the document, the document is saved in the server as new version...
So I wonder if it is possible to implement the same feature using java..... if yes which Java Technology should I used...

I'm pretty sure that lotus stuff was based on WebDav which is a separate technology.
Quote: WebDAV stands for "Web-based Distributed Authoring and Versioning". It is a set of extensions to the HTTP protocol which allows users to collaboratively edit and manage files on remote web servers.
See:http://www.webdav.org/
Kullervo

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