FWTtree = {
	toggle: function(t) {
		var p = t.parentNode.parentNode;
		if (p.className.match(/\bexpanded\b/)) {
			p.className = p.className.replace(/\bexpanded\b/, 'collapsed');
		} else {
			p.className = p.className.replace(/\bcollapsed\b/, 'expanded');
		}
		if (t.blur) {
			t.blur();
		}
	}
};