It would be much better to have it be one of the YUI buttons and have it on the same row as the Share and Slideshow buttons.
I searched a long time on the great wide Interwebz to find a solution. Way down in the Digital Grin Forum I found a post that explain how you do it. As you can see I have made it work, so can you.
So head over to the Digital Grin Forum to get the code :)