Thanks for your reply. Just a quick question. What would $q->param('DELIVERMESSAGE') return if DELIVERMESSAGE is not set to equal anything?.

ie. If the only thing that is passed is 
MyScript.pl?DELIVERMESSAGE

OR

MyScript.pl?MESSAGECOUNT

[download]
How would I be able to tell whether they wanted DELIVERMESSAGE or MESSAGECOUNT??
As for the sessions or cookies, the answer is no.
Thanks, Gerard.
Update: I see that roger has answered my question below. It was the defined bit that I was really missing in my understanding

In reply to Re: Re: CGI Parameters by Gerard
in thread CGI Parameters by Gerard

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