Thanks Matt, i didn't think to use the \A and \Z as this was where i was 
getting lost, i couldn't understand how to constrain it just to those options, 
but your example works perfectly and i have learned something new :)

thanks again

richard

>\b is an escape sequence that, as taken from the docs:
>
>"Specifies a boundary defined by a transition from an alphanumeric character
>to a nonalphanumeric character, or from a nonalphanumeric character to an
>alphanumeric character."
>
>Since you're passing in "Dr|", the pipe character matches, as it is a
>transition from an alphanumeric character to a non-alphanumeric character.
>
>Assuming that you're wanting the title to be the only thing in the field,
>with the exception of a possible period at the end, try something like this:
>
><cfset var titleRegEx = "\A(Dr|Prof|Mr|Mrs|Ms|Miss)(\.)?\Z" /> 

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