> > ALL CGI variables are ALWAYS "defined" within CF, so you
> > test for them using len() instead of isdefined().
>
> But isn't cgi.http_referer, for example, exist only if the
> page is called from a form? So it wouldn't exist if you came
> from a link?
The CGI variable itself may not exist, in the sense that the browser didn't
create a Referer header, but CF doesn't care. If you run this:
<cfif IsDefined("CGI.FOO_BAR")>
CGI variable detection is crap!
</cfif>
you'll see what I mean.
Dave Watts, CTO, Fig Leaf Software
http://www.figleaf.com/
voice: (202) 797-5496
fax: (202) 797-5444
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