referring page in custom 404

As part of my 404, I want to offer a link back to the referring page.
Doing this makes no sense if there wasn't one.

Currently, I have:

<!--#if expr="$HTTP_REFERRER = '(none)'" -->
You appear to have typed this URL directly.</P>
<!--#else -->
Or maybe you'd like the <a href="<!--#echo var="HTTP_REFERER"
-->">referring page</a>?</P>
<!--#endif -->


This doesn't work, I always get the referring page text.

Any ideas?

On Sun, 16 Nov 2003, kirun wrote:
 > As part of my 404, I want to offer a link back to the referring page.
 > Doing this makes no sense if there wasn't one.
 >
 > Currently, I have:
 >
 > <!--#if expr="$HTTP_REFERRER = '(none)'" -->
^
Misspelled (you spelled it correctly, but it's supposed to be misspelled).
There's also the matter of what you're comparing to: "(none)" is produced only
when an empty variable is printed.

I looked at my own script and noted that one only need test to see if there's
ANY value set - i.e.:

<!--#if expr="$HTTP_REFERER" -->

was sufficient....

 > You appear to have typed this URL directly.</P>
 > <!--#else -->
 > Or maybe you'd like the <a href="<!--#echo var="HTTP_REFERER"
 > -->">referring page</a>?</P>
 > <!--#endif -->
 >
 > This doesn't work, I always get the referring page text.
 >
 > Any ideas?<!-- ~MESSAGE_AFTER~ -->