Hello
Here is Google buzz share button code with popup .
Code:
<a href='javascript:var%20b=document.body;var%20GR________bookmarklet_domain="http://www.google.com";if(b&&!document.xmlVersion){void(z=document.createElement("script"));void(z.src="http://www.google.com/reader/ui/link-bookmarklet.js");void(b.appendChild(z));}else{}'> <img src="http://www.YourSite.com/files/Gbuzzer.png" width="50" height="58" alt=""/></a><br>
Red : repalce with your own address ( upload attached picture )