Need a website that shows me how to make a knot.?

Question:Suppose you have two hooks that are in the walls opposite one another in a hallway. I would like to attach a tight loop of string between the two hooks. Please show me the right place on the internet where I can learn how to tie a tight loop.

Answers:
here ya go,
http://www.folsoms.net/knots/

it even shows you animation.