// Botón derecho del mouse
function derecha(e) 
{
	if (navigator.appName == 'Netscape' && (e.which == 3 || e.which == 2))
	{
		alert('www.mapfre.com.ve')
		return false;
	}

	else if (navigator.appName == 'Microsoft Internet Explorer' && (event.button == 2))
	{
		alert('www.mapfre.com.ve')
		return false;
	}
}
document.onmousedown=derecha