dreameaver regular expression

[hermes]

I want to do a regular expression for

(NOT http)

cannot have the string http
can have h, fine
can have t,fine.....
but CANNOT have the string http

[hermes]

anyone? Am really stuck.

[jatar_k]

maybe a little more info?

what language do you need to do this in?
what are you actually try to check for having http?