iRule using alternate address to hit specific node

Thanks, that helped a lot. It's almost working perfectly now!

 

 

The issue now is that if I type only the root url and port (ptk.first.example.org:8001) then I am redirected to the address that I'm replacing the host header to (web.first.com), the GTM is queried for DNS which is currently sending me to the wrong datacenter and the server selection bit of the code is effectively ignored. However, if I specify an exact page/file to load (ptk.first.example.org:8001/main.jsf), the URL will not change to what I'm replacing the host header with and the application will load on the server I specified. However, the Google Maps API v2 is still complaining that the site needs its own unique API key which is keeping the rest of the application from loading. Is there anything else I can do, or are my hands tied until we upgrade to the newer API?