var pageLoaded = false;

// Main level navigation
aboutusOff = new Image(); aboutusOff.src="/images/nav/aboutus.jpg";
aboutusOn = new Image(); aboutusOn.src="/images/nav/aboutus-on.jpg";
healthcareOff = new Image(); healthcareOff.src="/images/nav/healthcareservices.jpg";
healthcareOn = new Image(); healthcareOn.src="/images/nav/healthcareservices-on.jpg";
employmentOff = new Image(); employmentOff.src="/images/nav/employment.jpg";
employmentOn = new Image(); employmentOn.src="/images/nav/employment-on.jpg";
newsOff = new Image(); newsOff.src="/images/nav/inthenews.jpg";
newsOn = new Image(); newsOn.src="/images/nav/inthenews-on.jpg";
opportunitiesOff = new Image(); opportunitiesOff.src="/images/nav/physician.jpg";
opportunitiesOn = new Image(); opportunitiesOn.src="/images/nav/physician-on.jpg";

// On and off state for main Nav
bgOff = new Image(); bgOff.src="/images/nav/off.jpg";
bgOn = new Image(); bgOn.src="/images/nav/on.jpg";

// On and off state for Locator
locatorbgOff = new Image(); locatorbgOff.src="/images/locator/off.gif";
locatorbgOn = new Image(); locatorbgOn.src="/images/locator/on.gif";

//locator
locatorOff	= new Image(); locatorOff.src="/images/locator/select.gif";
locatorOn	= new Image(); locatorOn.src="/images/locator/select.gif";
function bg_act_nav(cellname,status)
{
	if (document.layers){
		return false;
	}
	else if (document.all) {
		//alert(bgOn.src)
		document.all[cellname].background = eval('bg' + status + '.src');
		
	}
	else {
		document.getElementById('cell1');
	}
	if (status == 'Off') {
		showLayer('resetSubnav');
	}
	clearreset();
}

function locatorover(cellname,status)
{
	if (document.layers){
		return false;
	}
	else if (document.all) {
		//alert(bgOn.src)
		document.all[cellname].background = eval('locatorbg' + status + '.src');
		
	}
	else {
		document.getElementById('cell1');
	}
	if (status == 'Off') {
		showLayer('resetSubnav');
	}
	clearreset();
	
}
function loadProc() {
	pageLoaded = true;
	
}

function img_act(img) {
	document[img].src = eval(img + "On").src;
}

function img_inact(img) {
	document[img].src = eval(img + "Off").src;
}

function showLayer(layername) {
	if (pageLoaded) {
		if (document.all){
			document.all[layername].style.visibility = "visible";
		}
		else if (document.layers){
	 		document.layers[layername].visibility = "visible";
		}
		else {
			var myLayer = document.getElementById(layername);
			myLayer.style.visibility = "visible";
		}
	}
}

function hideLayer(layername) {
	if (pageLoaded) {
		if (document.all){
			document.all[layername].style.visibility = "hidden";
		}
		else if (document.layers){
			document.layers[layername].visibility = "hidden";
		}
		else {
			var myLayer = document.getElementById(layername);
			myLayer.style.visibility = "hidden";
		}
	}
}

var blnReset = false;
var defaultSubnav = "emptySubnav";
var currImage = "";
var currLayer = "";

function showtopnav(menuname)
{
	resettopnav(menuname);
	currLayer = menuname + "Subnav";
	showLayer(menuname+'Subnav');
	
	showLayer("resetSubnav");
	img_act_nav(menuname, "topNav");
	clearreset();
	window.focus();
}
function showlocator(menuname)
{
	resettopnav(menuname);
	currLayer = menuname + "Subnav";
	showLayer(menuname+'Subnav');
	
	showLayer("resetSubnav");
	clearreset();
	window.focus();
}


function resettopnav()
{
	if (currLayer != "") {
		hideLayer(currLayer);
	}
	if ((currImage != "") && (currImage + "Subnav" != defaultSubnav)) {
		img_inact_nav(currImage, "topNav");
		
		
		
	}
	showLayer("emptySubnav");
	clearreset();
	
}
function settimedreset()
{
	
	hideLayer('resetSubnav');
	blnReset = true;
	
	resetTimeout = setTimeout('timedresetnav()', 1000);
}
function timedresetnav()
{
	if(blnReset)
	{
		resettopnav();
	}
}
function clearreset()
{
	if(blnReset) window.clearTimeout(resetTimeout);
	blnReset = false;
}
function img_inact_nav(imagename,layername)
{
	if (document.layers){
		document.layers[layername].document.images[imagename].src = eval(imagename + 'Off.src')
	}else{
		document [imagename].src = eval(imagename + 'Off.src')
	}
	if (layername == "topNav") {
		currImage = "";
	}
	clearreset();
}
function img_act_nav(imagename,layername)
{
	if (document.layers){
		document.layers[layername].document.images[imagename].src = eval(imagename + 'On.src')
	}else{
		document [imagename].src = eval(imagename + 'On.src')
	}
	
	if (layername == "topNav") {
		currImage = imagename;
	}
	showLayer('resetSubnav');
	clearreset();
}