function noRightClick(buttonClicked)
{
	if (navigator.appName == 'Netscape' && 
	(buttonClicked.which == 2 || buttonClicked.which == 3))
		return false;
	else if (navigator.appName == 'Microsoft Internet Explorer' && 
	(event.button == 3 || event.button == 2)) 
	{
		alert("The right click options are disabled for this window.");
		return false;
	}
	return true;
}
document.onmousedown=noRightClick;
document.onmouseup=noRightClick;
if (document.layers)
	window.captureEvents(Event.MOUSEDOWN);
if (document.layers) window.captureEvents(Event.MOUSEUP);
	window.onmousedown=noRightClick;
window.onmouseup=noRightClick;