Igor,
It might be simpler to do this:
remove_hf("Contact")
append_hf("Contact: <$fu>\r\n");
-- Alex
--
Alex Balashov | Principal | Evariste Systems LLC
1447 Peachtree Street NE, Suite 700
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United States
Tel: +1-800-250-5920 (toll-free) / +1-678-954-0671 (direct)
Web:
http://www.evaristesys.com/,
http://www.csrpswitch.com/