var xcNode = [];

function xcSet(m, c) {
//alert("xcSet");
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)');
      //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 = 'none';
          x = xcNode[d+'x'];
				}
			}

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


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


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


function xcToggle(m) {
//alert("xcToggle");
	if(document.getElementById(m).style.display != 'none')
		document.getElementById(m).style.display = 'none';
	else
		document.getElementById(m).style.display = 'block';
}


function xcXC(e, d, s, h) {
//alert("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) {
//alert("xcCtrl");
  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;
}