How to change value dynamically in URL?

Hi All,
This seems to be a really easy yet I cannot find a working solution!
I have a report where one column is a link which passes the following:
f?p=&APP_ID.:28:&SESSION.::&DEBUG.:RP,:P28_PROCS_ID,P28_PROCS_VER:#PROCS_ID#,#PROCS_VER#
What I would like to achieve is that the #PROCS_VER# variable is incremented by one like this:
f?p=&APP_ID.:28:&SESSION.::&DEBUG.:RP,:P28_PROCS_ID,P28_PROCS_VER:#PROCS_ID#,#PROCS_VER#+1
However this will not work and only displays the actual value behind PROCS_VER and appends '+1' to it...
Any ideas?
Pawel.

I did think about it Vikas...
Ofcourse I am not expecting the value to be magically calculated by Apache. But I was expecting the HTMLDB to be smart enough to evaluate the expression before it creates the URL string....
If Apex can 'convert' or 'translate' my entry #PROCS_VER# into an integer like 123 then why couldn't it simply perform a simple calculation and add a 1 to it?
All is missing here is that Apex is simply not able to perform ANY math before it blindly copies the "value" hidden under #PROCS_VER# into the string which builds up the URL...
Also in another post by Scott (Re: How to pass a "+" in an url ? I saw that %2B was evaluated into a plus sign in a URL...

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