var message = "Photos propriete de BNS, merci de votre comprehension !";



function click(what) {



	if(navigator.appName == "Netscape"){

		 if(what.which == 3){

			alert(message);

			}

		}

	else{

		if (event.button==2 || event.button==1+2)

			alert(message)

		}

	 }

document.onmousedown=click