IMDb - How it works?

Hi there, I am very interested in how the IMDb site works. For example: http://uk.imdb.com is the basic URL http://uk.imdb.com/Title?0068646 is the URL for a film (this example is The Godfather) http://uk.imdb.com/Details?0068646 is the URL for the film details... http://uk.imdb.com/Credits?0068646 is the URL for the film credits... and so on. How do they do this? do they have a page called "Title" and no variable name assigned? I think this would be a great way of linking if only I could know how it works. Any help much appreciated! Ian. --- Randum Ian DJ / Reviewer / Webmaster, DancePortal (UK) Limited ian@danceportal.co.uk http://www.danceportal.co.uk DancePortal.co.uk - Global dance music media