Everything on a web page is viewable because it is downloaded to the site
visitor's machine. Hence everything is already "taken". If you take the time
to review professional image provider sites you'd see that the common
solution is to watermark images when "protection" is desired. Other methods
such as very low quality are used as well. This discussion is OT so I'd
recommend you do some research on google if you need help with watermarking
and other techniques.

David Bartosik - [MSFT MVP]
www.publishermvps.com
www.davidbartosik.com