[Accessibility_sig] Disabling right click on web page

[Chris Latham]

Not totally fool-proof, but displaying the images through a flash script will 
make it harder for most people to grab the image. May also require a little 
tweaking to make it screen reader friendly.

James Risk wrote:
> I should have said any unauthorized use.  For many of our Center's 
> artists, these artworks are their only source of income.  Our Center 
> does not directly sell the artwork for the artists, but we do everything 
> we can to assist them.  We want to ensure that the artist has given 
> their express consent to any use of their work and are compensated for it.