my %procs = (
		 reception => 29
  );

    unless (exists $procs{$SPROC}) {
      die "Unknown stored proc: $SPROC\n";
    }

 $Command = join(' ', 
		    'EXEC', 
		    $SPROC, 
		    join(', ', 
			 @CHOICE[1 .. $elements_in_array])) . '';