Try this  ....eval_in_page( $js ); where 
my $js = <<'__JS__';
(function(){
    function myFunction() { alert("Hello World!"); }
    myFunction();
})();
__JS__

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In reply to Re: Executing JavaScript function using WWW::Mechanize::Firefox by Anonymous Monk
in thread Executing JavaScript function using WWW::Mechanize::Firefox by Anonymous Monk

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