Thanks for the quick reply.
Sorry, that doesn't put a link on my webcam picture. Not sure if I've explained this very well.
I've got a webcam program which ftp's a jpg file every 30 seconds to my server. A lot of sites have copied the live source of the webcam jpg and are using it on their own websites without my permission and not linking back to me. I need to make the webcam jpg into a hyperlink so that the picture is linking back to my site so it becomes a link whichever site it is being used on. I think this is possible but I need a way of telling the server that the jpg is a hyperlink, I hope I've explained it a bit better.