System error

error:  Can't locate object method "header_in" via package "Apache2::RequestRec" at /var/opt/websites/bioinfo/shared/main.css line 38.
context: 
... 
34:  sub,sup { font-size: <% $sub %>px}
35: 
36:  <%init>
37:  # set browser specific values for style sheets
38:  my $browser = new HTTP::BrowserDetect($r->header_in('User-Agent'));
39: 
40:  #set browser specific variables
41:  my $sub = 11;
42:  my $s10 = 10;
... 
code stack:  /var/opt/websites/bioinfo/shared/main.css:38
raw error






























Can't locate object method "header_in" via package "Apache2::RequestRec" at /var/opt/websites/bioinfo/shared/main.css line 38.


Trace begun at /opt/perl/lib/HTML/Mason/Exceptions.pm line 131
HTML::Mason::Exceptions::rethrow_exception('Can\'t locate object method "header_in" via package "Apache2::RequestRec" at /var/opt/websites/bioinfo/shared/main.css line 38.^J') called at /var/opt/websites/bioinfo/shared/main.css line 38
HTML::Mason::Commands::__ANON__ at /opt/perl/lib/HTML/Mason/Component.pm line 136
HTML::Mason::Component::run('HTML::Mason::Component::FileBased=HASH(0xa255898)') called at /opt/perl/lib/HTML/Mason/Request.pm line 1069
eval {...} at /opt/perl/lib/HTML/Mason/Request.pm line 1068
HTML::Mason::Request::comp(undef, undef, undef) called at /opt/perl/lib/HTML/Mason/Request.pm line 338
eval {...} at /opt/perl/lib/HTML/Mason/Request.pm line 338
eval {...} at /opt/perl/lib/HTML/Mason/Request.pm line 297
HTML::Mason::Request::exec('HTML::Mason::Request::Apache2Handler=HASH(0xa0a5294)') called at /opt/perl/lib/HTML/Mason/Apache2Handler.pm line 132
eval {...} at /opt/perl/lib/HTML/Mason/Apache2Handler.pm line 132
HTML::Mason::Request::Apache2Handler::exec('HTML::Mason::Request::Apache2Handler=HASH(0xa0a5294)') called at /opt/perl/lib/HTML/Mason/Apache2Handler.pm line 794
HTML::Mason::Apache2Handler::handle_request('HTML::Mason::Apache2Handler=HASH(0xa0537b4)', 'Apache2::RequestRec=SCALAR(0xa2c886c)') called at (eval 36) line 8
HTML::Mason::Apache2Handler::handler('HTML::Mason::Apache2Handler', 'Apache2::RequestRec=SCALAR(0xa2c886c)') called at -e line 0
eval {...} at -e line 0