//preload images
function MM_swapImgRestore() { //v3.0
  var i,x,a = document.MM_sr;
  for (i = 0; a&&i < a.length && (x = a[i]) && x.oSrc; i++)
	x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
	var d = document;
	if (d.images) {
		if (!d.MM_p)
			d.MM_p = new Array();
		var i, j = d.MM_p.length, a = MM_preloadImages.arguments;
		for(i = 0; i < a.length; i++)
			if (a[i].indexOf("#") !=0 ) {
				d.MM_p[j] = new Image;
				d.MM_p[j++].src = a[i];
			}
	}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
	var i,j=0,x,a=MM_swapImage.arguments;
	document.MM_sr = new Array;
	for(i = 0; i < (a.length-2); i += 3)
		if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function toggle(id) {
	ul = "ul_" + id;
	img = "img_" + id;
	ulElement = document.getElementById(ul);
	imgElement = document.getElementById(img);
	if (ulElement) {
		if (ulElement.className == 'closed') {
			ulElement.className = "open";
			imgElement.src = "images/open.jpg";
		} else {
			ulElement.className = "closed";
			imgElement.src = "images/close.jpg";
		}
	}
}

//Function to Show and Hide Menus
//reference : Suckerfish Dropdowns:http://www.alistapart.com/articles/dropdowns/
startHover = function() {
	var sfEls = document.getElementById("nav").getElementsByTagName("LI");
	for (var i = 0; i < sfEls.length; i++) {
		sfEls[i].onmouseover = function() { this.className += " starthover"; }
		sfEls[i].onmouseout = function() { this.className = this.className.replace(new RegExp(" starthover\\b"), ""); }
	}
}

if (window.attachEvent) window.attachEvent("onload", startHover);

//function to swap Expand/collapse
function toggleDisplay() {
    document.all.first.style.display = 
      (document.all.first.style.display == 'none') ? 'block' : 'none'; 
    document.all.expandCollapseText.innerText = 
      (document.all.expandCollapseText.innerText == 'Expand') ? 'Collapse' : 'Expand'; 
}

function popHelp(url, name, options) {
    var popWindow = window.open(url, name, options);
    popWindow.focus();
    return false;
}