[texhax] About BibTex using year author

[Feng Xu]

Hi,

I use abbrvnat as bibliofraphystyle, and don't use natlib.
\bibliographystyle{abbrvnat}
\bibliography{navicomm}
And I use JabRef version 2.3.1 to generate the .bib file.

When the number of authors is more than three, I wish the cite is shown as:
[Author1 et al.(2001)]
But the result I get is:
[Author1 et al.(2001)Author1, Author2 and Autho3,]

What can I do to get what I wished.
Thanks a lot.

And The version of my tex: "This is pdfeTeX, Version
3.141592-1.30.6-2.2 (MiKTeX 2.5) "

Feng Xu