function showInfo(nItem) {
	document.getElementById('item' + nItem).style.background = "#efefef";
	document.getElementById('info' + nItem).style.display = "block";
}

function hideInfo(nItem) {
	document.getElementById('item' + nItem).style.background = "none";
	document.getElementById('info' + nItem).style.display = "none";
}