Ron Eggler - 2011-07-10

hi There,

I just started using phpgraphy recently and am enjoying it so far.
I only would like to add one feature to it.
When someone clicks on the picture, instead of going to the next one, I would like to open this picture in a new tab/window but from the original file.
How can i add this to index.php. I have looked around but couldn't really find where to add this.

Thank you for any hints or suggestions!