var currentID = '';

function openChild(parent, id, index)
{
	if (currentID != '')
	{
		oldUL = document.getElementById(currentID);
		oldUL.style.display = 'none';
	}
	newUL = document.getElementById(id);
	newUL.style.display = 'block';
	currentID = id;
	setFooter();
}