function hideAllKeyNotes() {
	var keynotes;
	keynotes = document.getElementById('keyNotes');
	
	for (i=0; i<keynotes.childNodes.length; i++) {
		node = keynotes.childNodes[i];
		if (node.nodeName == "DIV" && node.className == "keyNotesDiv") {
			node.style.display = 'none';
		}
	}
}

function showKeyNote(keyNoteName) {
	hideAllKeyNotes();
	var keyNoteDiv;
	keyNoteDiv = document.getElementById(keyNoteName);
	if (keyNoteDiv && keyNoteDiv.className == 'keyNotesDiv') {
		keyNoteDiv.style.display = '';	
	}
}