function OpenYear(child, item)
{
	objChild = document.getElementById(child);
	objItem = document.getElementById(item);
   
	if (objChild.style.display == 'none')
	{
		objChild.style.display = '';
		objItem.className = 'TitoloOpen';
	}
	else
	{
		objChild.style.display = 'none';
		objItem.className = 'Titolo';
	}
}