yahoo buzz button as an include on a dynamic site

i want to add yahoo buzz to a joomla site, i have an include that has a number of soical network buttons on it, how do i put a url on the button. i know the yahoo buttons you get have the link on the button already eg.. facebooks is <url>http://www.facebook.com/sharer.php?u={url}</url>

i dont want to have to add it manual to each page.. any ideas?? am sure it is simple.

have tried <url>http://buzz.yahoo.com/article/pub/{url} </url>but no luck!