Quote questions
 

Hi all,
I need to ask if anyone know on the following;

How can I prevent a user to quote a posting, e.g. with pictures/photos URLs (this is to prevent the act of copy and paste to other sites).
I saw some forums whereby the picture/photo section is done this way. When a user click on "Quote", there are no picture/photo URLs appear on the message text area. Anyone know how to do this?

Thanks