bName = navigator.appName;
if (bName == "Microsoft Internet Explorer" && navigator.browserLanguage.substr(0,2) == "nl") var message="Sorry\n\nRechts Klikken is verboden. \n\nKierewiet";
else var message="Sorry\n\nClicking Right is prohibited.\n\nKierewiet";

function click(e) {
if (document.all) {
if (event.button == 2) {
alert(message);
return false;
}
}
if (document.layers) {
if (e.which == 3) {
alert(message);
return false;
}
}
}
if (document.layers) {
document.captureEvents(Event.MOUSEDOWN);
}
document.onmousedown=click;