mod_auth_radius question

[Jeremiah Millay <jmillay@sover.net>]

I have a question regarding mod_auth_radius which doesn't seem to be 
addressed by the included documentation or anything I have found with a 
google search.
When configuring the module in the apache configuration (I'm using the 
latest 1.3 branch) is it possible to specify more than one radius server 
so that it will fail over in the even that the first is down? Something 
like this:

<IfModule mod_auth_radius.c>
#
# AddRadiusAuth server[:port] <shared-secret> [ timeout [ : retries ]]
#
AddRadiusAuth server1.example.com:1645 secret 5:3
AddRadiusAuth server2.example.com:1645 secret 5:3
AddRadiusCookieValid 60
</IfModule>

It seems as though this doesn't work or it wants to use only the last 
one specified. Am I missing something? Anybody have experience trying to 
use this module in a similar setup? It would be great to be able to get 
this working with both of my radius servers.
Thanks in advance!
Jeremiah