function right_click(e) {
	if (navigator.appName == 'Netscape' && (e.which == 3 || e.which == 2)) {
		alert('XTRAK 2009 :: Derechos Reservados.');
		return false
	} else if (navigator.appName == 'Microsoft Internet Explorer' && (event.button == 2)) {
		alert('XTRAK 2009 :: Derechos Reservados.')
	}
}
document.onmousedown = right_click;