// Use this code to trigger the pop-up layer
// onMouseOver="hideAll(); showLayer('layerName'); stopTime()" onMouseOut="startTime();" 

function reDo() {
	window.location.reload();
}

window.onresize = reDo;
//Define global variables

var timerID = null;
var timerOn = false;
var timecount = 100;
// Change this to the time delay that you desire

var what = null;
var newbrowser = true;
var check = false;

function init() {
	if (document.layers) { 
		layerRef="document.layers";
		styleSwitch="";
		visibleVar="show";
		screenSize = window.innerWidth;
		what ="ns4";
	}  else if(document.all) {
		layerRef="document.all";
		styleSwitch=".style";
		visibleVar="visible";
		screenSize = document.body.clientWidth + 18;
		what ="ie4";
	}  else if(document.getElementById) {
		layerRef="document.getElementByID";
		styleSwitch=".style";
		visibleVar="visible";
		what="dom1";
	}  else {
		what="none"; 
		newbrowser = false;
	}
	check = true;
}

// Toggles the layer visibility on
function showLayer(layerName) {
	if(check) {
		if (what =="none") {
			return;
		}  else if (what == "dom1") {
			document.getElementById(layerName).style.visibility="visible";
		}  else {
			eval(layerRef+'["'+layerName+'"]'+styleSwitch+'.visibility="visible"');
		}
	}  else {
		return;
	}
} 
 
// Toggles the layer visibility off
function hideLayer(layerName) {
	if(check) {
		if (what =="none") {
			return;
		}  else if (what == "dom1") {
			document.getElementById(layerName).style.visibility="hidden";
		}  else {
			eval(layerRef+'["'+layerName+'"]'+styleSwitch+'.visibility="hidden"');
		}
	}  else {
		return;
	}
} 

function hideAll() {
	hideLayer('menu_regional_overview');
	hideLayer('menu_industry_sectors');
	hideLayer('menu_data_reports');
	hideLayer('menu_data_reports_ports');
	//Put all layers used in the nav here.
	//Copy the hideLayer() function above.
} 
 
function startTime() {
	if (timerOn == false) {
		timerID=setTimeout( "hideAll()" , timecount);
		timerOn = true;
	}
} 

function stopTime() {
	if (timerOn) {
		clearTimeout(timerID);
		timerID = null;
		timerOn = false;
	}
}

function onLoad() {
	init();
}

function getScreenWidth() {
	if (parseInt(navigator.appVersion)>3) {
		if (navigator.appName.indexOf("Microsoft")!=-1) {
			return document.body.offsetWidth-20;
		} else { 
			return window.innerWidth-26;
		}
	} else return 0;
}

function getScreenHeight() {
	if (parseInt(navigator.appVersion)>3) {
		if (navigator.appName.indexOf("Microsoft")!=-1) {
			return document.body.offsetHeight;
		} else { 
			return window.innerHeight;
		}
	} else return 0;
}