Various rewrites/redirects on one VIP

Are you saying I can nest if statements within another if statement?

if {[HOST::name] ends_with "newdomain.com"} {
    Stuff do do when domain is "newdomain.com"
    }
    if { [HTTP::query] contains "TID=" } {
            HTTP::redirect "http://newforum.newdomain.com/default.aspx?g=posts&t=[URI::query [HTTP::uri] TID]"
            return
        }
        if { [HTTP::query] contains "FID=" } {
            HTTP::redirect "http://newforum.newdomain.com/default.aspx?g=topics&f=[URI::query [HTTP::uri] FID]"
            return
        }
        if { [HTTP::query] contains "C=" } {
            HTTP::redirect "http://newforum.newdomain.com/default.aspx?g=forum&c=[URI::query [HTTP::uri] C]"
            return
        }
       }
       elseif {[HOST::name] ends_with "olddomain.com"} {
    Stuff to do when domain is "olddomain.com"
    }  else {
    stuff do do in case host name ends with something we did not expect.
    }