Tuttle, there is nothing you can do to stop casual theft of images on your site. It does not matter where you place the images. If somebody can see an image on their browser then that image is already downloaded and on their computer. They can steal it by right clicking on it (you can't stop right clicking if they simply disable javascript). They can also search their cache (temporary internet files) since all images they can see on their browser are in there. Worst case, they can simply do a screen capture and trim the result.