Thanks to all of you guys. You can't imagine hou much you helped me by answering these questions. I know I might have sounded a bit wrong. but with everything you've given me, I was able to deepen my research and it came out very well. The presentation is tomorrow, and I'm sure that you have played a big part on it. Again, thanks to you all who helped me so kindly. -- Posted via http://www.ruby-forum.com/.