function droite(e)
{
var message = "Copyright Pierre-Olivier Hubac";
if (navigator.appName == 'Netscape' && e.which == 3)
{
alert(message);
}
else if (navigator.appName == 'Microsoft Internet Explorer' && event.button==2)
{
alert(message);
}
return true;
}
document.onmousedown = droite;