This is an age old question (age old meaning 10 or 15 years).
You have to understand that if a browser can display the image on your page, then IT HAS ALREADY DOWNLOADED THAT IMAGE. In other words, the image file has to be brought to the users computer to be able to display it. What you are probably hoping is to make it a little harder by disabling the "Save Picture As..." on the context menu that comes up when a user right-clicks the image so they can't save it to a file, and you have probably seen sites that do this, but it only makes it slightly more difficult for the user to "copy" your image.
In other words - you cannot protect an image that is displayable in the browser from being captured by the user. Like they say - if you don't want someone to copy it, then don't put it on the internet.
Woody Z
http://www.learntoprogramnow.com
how prevent sava as option in IE
