How to delete multiple friends at once on Facebook?

[BoB Sir Dylan]

When I was at school I went on an adding spree, and currently have over 950 friends. Now i'm 17 almost 18, in sixth-form and going to Uni next year, and everytime I got on facebook it's full of random people I don't know! I want to get it down from 950 to like 250/300 which is probably around about the number of people I really know. This includes close friends, friends, family, and people within my school year.
It's going to take hours if I have to do it one-by-one, so please help.
Thanks guys.

[ntj]

sorry, gotta delete it one by one. i thought i could do a multiple delete when i was cleaning out my friend list for college. took me a couple hours but i was happy when i got rid of all the other people