Thanks for your reply, I appreciate it. I just coded it to practice my perl skills, it was not so much about the 'content' itself. The Dutch variable names: I wanted to show the code to my teacher so I commented in Dutch. I translated it to English to put it online, but I forgot to transform the variable names, so sorry for that. I was indeed a bit lazy when I was coding cause I never really thought about using tabs and whitelines cause I knew it would be a very small piece of code, but I know it's not an excuse hehe :) Anyway thanks for the hints, hope to hear from you later cheers azerton