Pagerank Check for Safari

I am new to a mac and still finding my way, but one thing I need for work is a pagerank check. I was using firefox which does have the extension but I don't like the way firefox works and much prefer safari - but have been looking everywhere to find an extension or something that would add a simple pagerank check into the browser so I can see the PR for any particular site I am on.

I did find the widget, but thats a pain in the *** to keep switching - so if you have any advice - would be greatly appreciated

Ross