var xcNode = [];

function xcSet(m, c) {
if (document.getElementById && document.createElement) {
m = document.getElementById(m).getElementsByTagName('ul');
var d, p, x, h, i, j;
for (i = 0; i < m.length; i++) {
if (d = m[i].getAttribute('id')) {
xcCtrl(d, c, 'x', '(+)', 'Show', m[i].getAttribute('title')+' (expand menu)');
x = xcCtrl(d, c, 'c', '(-)', 'Hide', m[i].getAttribute('title')+' (collapse menu)');

p = m[i].parentNode;
if (h = !p.className) {
j = 2;
while ((h = !(d == arguments[j])) && (j++ < arguments.length));
 if (h) {
m[i].style.display = 'block';
 x = xcNode[d+'x'];
 }
 }

 p.className = c;
 p.insertBefore(x, p.firstChild);
 }
 }
 }}

function xcShow(m) {
xcXC(m, 'block', m+'c', m+'x');
}

function xcHide(m) {
xcXC(m, 'none', m+'x', m+'c');
}


function xcXC(e, d, s, h) {
e = document.getElementById(e);
e.style.display = d;
e.parentNode.replaceChild(xcNode[s], xcNode[h]);
xcNode[s].firstChild.focus();
}

function xcCtrl(m, c, s, v, f, t) {
var a = document.createElement('a');
a.setAttribute('href', 'javascript:xc'+f+'(\''+m+'\');');
a.setAttribute('title', t);
a.appendChild(document.createTextNode(v));
var d = document.createElement('div');
d.className = c+s;
d.appendChild(a);
return xcNode[m+s] = d;
}