function showMinorCategory(a) {
	var node = a.firstChild;
	while (node) {
		if (node.className == "minorCategory") {
			node.style.display = "block";
		}
		node = node.nextSibling;
	}
}

function hideMinorCategory(a) {
	var node = a.firstChild;
	while (node) {
		if (node.className == "minorCategory") {
			node.style.display = "none";
		}
		node = node.nextSibling;
	}
}