Rather than a global variable, I think what you want is a value which persists but which may be differ between users. Since HTTP is a stateless protocol, you will need to maintain the state (or a pointer to it) on the client side. Generally that's done with cookies. Hidden form elements can sometimes be useful as well but only if you are already dynamically generating the form content.

-sauoq
"My two cents aren't worth a dime.";

You may also want to read these nodes: Adding "state" to HTTP, CGI question: session management mechanisms.

HTH, Valerio

You could process the pages with your script and insert the variable into the HTML as a hidden form field, but this leaves it open to manipulation. Another possible solution is to write the variable to a file linked to the user's IP address or a combination of any two of these: write the variable to a file linked to cookie data you set in the user's browser, etc...

SpaceAce

use Attribute::Persistent;

my %hash :persistent;

# Value retained between calls to the program.
$hash{counter}++;

# Explicitly provide a filename.
my %hash2 :persistent(SessionTable);
[download]

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broquaint