Using iRule to redirect F5 traffic based on Maintenance.

Updated to prior question:

Here's the new scenario I would like to know if there's a way to perform the following?

I have a F5 VS with (2) pool members that is routing to http://abc.home.com and would like to know if there is a way to create a irule to check the contents of the following site

http://abc.home.com/home/a/b/Offline.html

and if keyword "Offline" is detected on this site to redirect traffic to http://www.google.com