Thanks for the reply Andrew.
The main reason I am looking for a way to capture that information is so I have more control over what the user sees when clicking the image.
The way it is now is that They get a black screen with a larger version of the image. There is no return button so they have to click they back button on their browser.
What I hope to do is show some text about the work and a link to be able to purchase. Also I would like to be able to specify the size of the image they are viewing.
I am going to be set up through my bank to make the purchase connection so that is already taken care of.