Have a look at the CGI documentation, specifically the section on "CREATING THE HTML DOCUMENT HEADER".

The CGI header() function is used to generate a HTTP header, which relates to the communication protocol. You should not pass anything to it unless you know what it's for.

What you're looking for, then, is: 

print header(),
      start_html( -script => $html1 );

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In reply to Re^2: obtaining yyyy-mm-dd via a calendar object by rhesa
in thread obtaining yyyy-mm-dd via a calendar object by gmacfadden

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