Hi Anadrag,

Welcome to FlyerTalk.

Just to let you know, this topic has already been discussed here:

http://www.flyertalk.com/forum/Forum71/HTML/005049.html

Before posting, have a look around. As I'm sure you'll see, all of the questions you have asked here have already been answered. The search funtion located at the top of the page should be of great service.

Flip