Facebook and ReTweet icons and function?

Hi Guys,

Does any one know where I can get these icons from and functionality? Is it already a plugin?

http://i36.tinypic.com/3452a6h.jpg

I know there are hundreds of plugins that can do this but just after the one in the image. If anyone knows let me know thanks

Cheers Chris

The Twitter one it from http://tweetmeme.com/about/retweet_button and the FaceBook one I believe is custom using this code: http://www.facebook.com/share_partners.php

okay cheers

if anyone else reads this I found out where you can get it

here http://www.fbshare.me/