sub parse_form {

   # Get the input
   read(STDIN, $buffer, $ENV{'CONTENT_LENGTH'});

   # Split the name-value pairs
   @pairs = split(/&/, $buffer);

   foreach $pair (@pairs) {
      ($name, $value) = split(/=/, $pair);

      $value =~ tr/+/ /;
      $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C", hex($1))/eg;

      $FORM{$name} = $value;
   }
}

use CGI;
my $cgi = CGI->new();
my %FORM = $cgi->Vars();