Documentation license

Hi!
Can I use the code from the site of Jquery, example, a code from http://api.jquery.com/animate/, or http://api.jquery.com/ready/ in my website?. Can I use code of this pages or use other codes of the documentation on my website?
If I can, I need to put some credit in the source code of my page?

Sorry if my english is wrong, i´m from Brazil.
Thank you!