How do I identify that the server or db is busy on the WEB.

[Vladimir Palko]

I’m trying to run an agent in a web-browser. The agent does some calculations and return HTML page:
http://myserver/mydb.nsf/myagent?OpenAgent

or I just want to open a form or document:
http://myserver/mydb.nsf/myform?OpenForm

But at this time Consistency Check is being performed for mydb.nsf

so my questions are:

1. is there a way to determine that Domino server is not responding and do automatically redirect to another Domino server:
http://NEWSERVER/mydb.nsf/myform?OpenForm

2. the Domino is alive but db cannot be open because of consistency check or indexing.
How do I determine in WEB that especially consistency check is being performed?
If it is then do redirect or show a message, like:
… the server/db is busy, try again later…
Thank you
Vladimir