function openDiv ( divID )
{
	if (divID == 'mares')
	{
		closeDiv('ref_stallions');
		closeDiv('foals');
	}
	else if (divID == 'ref_stallions')
	{
		closeDiv('mares');
		closeDiv('foals');
	}
	else
	{
		closeDiv('mares');
		closeDiv('ref_stallions');
	}
	
	document.getElementById(divID).style.display = 'inline';
}

function closeDiv ( divID )
{
	document.getElementById(divID).style.display = 'none';
}