$q = new CGI;

print $q->$sample{'login'}{'method'}->($sample{'login'}{'field'},
            $sample{'login'}{'size'},
            $sample{'login'}{'max'});

or do I need to do the following:

print $q->$sample{'login'}{'method'}->(-name=>$sample{'login'}{'field'},
            -size=>$sample{'login'}{'size'},
            -max=>$sample{'login'}{'max'});