function getInnerText(node)
{
	switch (node.nodeType) {
	case 1:	// ELEMENT_NODE
		var text = "";
		for (node=node.firstChild; node; node=node.nextSibling) {
			text += getInnerText(node);
		}
		return text;

	case 3:	// TEXT_NODE
		return node.nodeValue;

	default:
		return "";
	}
}

function addNoteTitle()
{
	for (var i=1;; ++i) {
		var ref_note_elem = document.getElementById("ref_note"+i);
		if (!ref_note_elem) break;
		do {
			do {
				ref_note_elem = ref_note_elem.nextSibling;
			} while (ref_note_elem.nodeName.toLowerCase() != "a");
		} while (!ref_note_elem.href.match(RegExp("#note"+i+"$")));

		var note_elem = document.getElementById("note"+i).parentNode;
		while (note_elem.nodeName.toLowerCase() != "dd") note_elem = note_elem.nextSibling;
		var note_list = note_elem.getElementsByTagName("p");
		var note = "";
		for (var j=0; j<note_list.length; ++j) {
			note += getInnerText(note_list[j]) + "\n";
		}
		ref_note_elem.title = note;
	}
	return true;
}