function openclose(my) {
	my.parentNode.className =
		(my.parentNode.className=='open')?'closed':'open';
	return false; }

function openAll() {
    if (!document.createElement) return;
    lis = document.getElementsByTagName("li");
    for (lii=0;lii<lis.length;lii++) {
        ul = lis[lii];
        if (ul.nodeName == "LI" && ul.className == "closed") {
        	ul.className = "open"; } } }

function closeAll() {
    if (!document.createElement) return;
    lis = document.getElementsByTagName("li");
    for (lii=0;lii<lis.length;lii++) {
        ul = lis[lii];
        if (ul.nodeName == "LI" && ul.className == "open") {
        	ul.className = "closed"; } } }