Where to get a Digg button that works just like the one on digg.com?

hello!

all Digg buttons i’ve tried for my blog only work this way: when you click ‘Digg it!’, it redirects to the digg webpage.

However, i remember visiting a blog some time ago and when i press ed the digg button, the number of hits increased +1 with a fade effect, just li does on the digg website.

where can i get such a button? thanks!