var EOF = false;
/* create global rollover variables & preload images */
var navImg1On = new Image();
navImg1On.src = "../img/nav_01_over.gif";

var navImg2On = new Image();
navImg2On.src = "../img/nav_02_over.gif";

var navImg2bOn = new Image();
navImg2bOn.src = "../img/nav_02b_over.gif";

var navImg3On = new Image();
navImg3On.src = "../img/nav_03_over.gif";

var navImg4On = new Image();
navImg4On.src = "../img/nav_04_over.gif";

var navImg5On = new Image();
navImg5On.src = "../img/nav_05_over.gif";

var navImg6On = new Image();
navImg6On.src = "../img/nav_06_over.gif";

function findHeight (objectID) {
	var dom = findDOM(objectID, 0);
	if (dom.offsetHeight) {
		return dom.offsetHeight;
	}
	if (dom.clip.height) {
		return dom.clip.height;
	}
	return (null);
}

var isMozilla = 0;
var isNS = 0;
var isIE = 0;
var isOther = 0;
	
function detectBrowser() {
	if (navigator.appCodeName.indexOf('Mozilla') != -1) {
		isMozilla = 1;
	}
	if (navigator.appName.indexOf('Netscape') != -1) {
		isNS = 1;
	}
	if (navigator.appName.indexOf('Microsoft Internet Explorer') != -1) {
		isIE = 1;
	} else {
		isOther = 1;
	}
	var browserVersion = parseInt(navigator.appVersion);
}
function hideAll() {
	var introTxtDOM = findDOM('narrIntro', 1);
	introTxtDOM.visibility = "hidden";
	var textLayers = new Array("layer01","layer02","layer03","layer04","layer05","layer06","layer07","layer08","layer09","layer10");
	for (var i = 0; i < textLayers.length; i++) {
		var layerDOM = findDOM(textLayers[i], 1);
		layerDOM.visibility = "hidden";
	}
}
var whichLayer = null;

function displayLayer(thisLayer) {
	/* hideAll(); */
	whichLayer = findDOM(thisLayer, 1);
	whichLayer.visibility = "visible";
}
function hideLayer(thisLayer) {
	whichLayer = findDOM(thisLayer, 1);
	whichLayer.visibility = "hidden";
}
/* rotate home images */
var homeImages = new Array("img/homeImg_01.jpg", "img/homeImg_02.jpg", "img/homeImg_03.jpg", "img/homeImg_04.jpg", "img/homeImg_05.jpg", "img/homeImg_06.jpg", "img/homeImg_07.jpg", "img/homeImg_08.jpg");
var thisImg = 0;
var imgCt = homeImages.length;
function rotate() {
	if (document.images) {
		thisImg++;
	}
	if (thisImg == imgCt) {
		thisImg = 0;
	}
	if (thisImg == 0 || thisImg == 4) {
		document.getElementById('homeImgC').src = homeImages[thisImg];
	} else if (thisImg == 1 || thisImg == 5) {
		document.getElementById('homeImgA').src = homeImages[thisImg];
	} else if (thisImg == 2 || thisImg == 6) {
		document.getElementById('homeImgD').src = homeImages[thisImg];
	} else if (thisImg == 3 || thisImg == 7) {
		document.getElementById('homeImgB').src = homeImages[thisImg];
	}
	setTimeout("rotate()", 4 * 1000);
}
EOF = true;