in reply to How to implement CSS in perl script.

If you are using CGI: 

print start_html(-style=>{'src'=>'http://my.server.com/style.css'} );

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UPDATE From the looks of your code, you are not. So you could just do 
print qq|<link href="http://my.server.com/style.css" rel="stylesheet" 
+type="text/css"></link>|;

[download]
Unless I am misunderstanding the question.
Ted
--
"That which we persist in doing becomes easier, not that the task itself has become easier, but that our ability to perform it has improved."
  --Ralph Waldo Emerson

In Section Seekers of Perl Wisdom