//Hides all toggle sub-menus. If javascript is disabled on the client browser, the toggles won't collapse.
function hide_all() {
	var arr = document.getElementsByTagName("dt");
    for (var i = 1; i<=arr.length; i++) {
        document.getElementById('smenu'+i).style.display='none';
		document.getElementById('toggle'+i).innerHTML = " [ + ]";
    }
}

function show(id, toggle) {
	
	var d = document.getElementById(id);
	var tog = document.getElementById(toggle);
	/*var arr = document.getElementsByTagName("dt");
		for (var i = 1; i<=arr.length; i++) {
			if (document.getElementById('smenu'+i)) {
				document.getElementById('smenu'+i).style.display='none';
				document.getElementById('toggle' + i).innerHTML = " [ + ]";
			}
		}*/
	if (d) {
		if (d.style.display == 'none') {
			d.style.display='block';
			tog.innerHTML = " [ - ]";
		}
		else {
			d.style.display = 'none';
			tog.innerHTML = " [ + ]";
		}
	}
}

var origWidth, origHeight;
if (document.layers) {
	origWidth = window.innerWidth; origHeight = window.innerHeight;
	window.onresize = function() { if (window.innerWidth != origWidth || window.innerHeight != origHeight) history.go(0); }
}

var cur_lyr;	// holds id of currently visible layer
function swapLayers(id) {
  if (cur_lyr) hideLayer(cur_lyr);
  showLayer(id);
  cur_lyr = id;
}

function showLayer(id) {
  var lyr = getElemRefs(id);
  if (lyr && lyr.css){
    lyr.css.visibility = "visible";
  }
}

function hideLayer(id) {
  var lyr = getElemRefs(id);
  if (lyr && lyr.css) lyr.css.visibility = "hidden";
}

function getElemRefs(id) {
	var el = (document.getElementById)? document.getElementById(id): (document.all)? document.all[id]: (document.layers)? document.layers[id]: null;
	if (el) el.css = (el.style)? el.style: el;
	return el;
}

// Hides the the items under the '+' when the page is loaded.


if (window.addEventListener){
window.addEventListener("load", function() {hide_all(2)} ,false);
}
else if (window.attachEvent){
window.attachEvent("onload", function() {hide_all(2)});
}