Maybe this... http://perldoc.perl.org/CGI.html#PRAGMAS 
-nosticky

By default the CGI module implements a state-preserving 
behavior called "sticky" fields. The way this works is 
that if you are regenerating a form, the methods that 
generate the form field values will interrogate param() 
to see if similarly-named parameters are present in 
the query string. If they find a like-named parameter, 
they will use it to set their default values.

Sometimes this isn't what you want. The -nosticky pragma
prevents this behavior. You can also selectively change
the sticky behavior in each element that you generate.

[download]

In reply to Re^3: How to handle multiple buttons inside CGI form by silent11
in thread How to handle multiple buttons inside CGI form by doubledecker

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