Thanks for your suggestions and all of them make sense. However, since I am a totally beginner never learned programing, it should take me sometime to understand them clearly. I will also try to get answer from my lecturer, then post here that what I have learned from both questions.
Programing is an interesting subject. Thank you again. -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] http://learn.perl.org/