Using iRules for Redirects with strings

HTTP::redirect "http://www.site.com/training[HTTP::path]?[[HTTP::query]"

Something like this maybe:

when HTTP_REQUEST {
    set query ""
    if { [URI::query [HTTP::uri] _cid] ne "" } {
        set query "?_cid=[URI::query [HTTP::uri] _cid]"
    }
    HTTP::redirect "http://www.site.com/training/index.htm${query}"
}

Or maybe something like this example? This assumes that mytraining.site.com and www.site.com resolve to the same virtual server IP address.

when HTTP_REQUEST {

   if {[HTTP::uri] contains "_cid=" and not ([HTTP::path] starts_with "/training/index.htm"}{

      HTTP::redirect "http://www.site.com/training/index.htm?_cid=[URI::query [HTTP::uri] _cid]"
   }
}

Aaron