var msg='Photo © John P Hoover\n\n All Rights Reserved.';
if (document.layers) 
document.captureEvents(Event.MOUSEDOWN) 
function rightclick(e){ 
if (document.layers){ 
if (navigator.appName == 'Netscape' && e.which == 3) 
return false;
return true;
}
else if (navigator.appName == 'Microsoft Internet Explorer' && document.all){ 
if (navigator.appName == 'Microsoft Internet Explorer' && event.button==2) 
alert(msg);
if (navigator.appName == 'Microsoft Internet Explorer'){
return false;
}
} 
return true;
};
document.onmousedown=rightclick