Struts2.1 and ajax

[konf]

  BODY { font-family:Arial, Helvetica, sans-serif;font-size:12px; }Hi,
 I found a lot of articles which describes how to use ajax in
Struts2.0 using DOJO / JSON
 But in Struts 2.1 I found that DOJO is deprecated and replaced by
Java Web Part - but I did not found any tutorial. In JWP pages I
found something about using in classic servlets, but nothing about
using in Struts framework.
 Can anybody send me some link?
 Thanks
 Jiri