var layerRef = "null";
var layerStyleRef = "null";
var styleSwitch = "null";
var visibleVar = "null";
var hiddenVar = "null";
var nav;

if ((navigator.appName == "Netscape")&&(parseInt(navigator.appVersion)<5)){
  nav = true;
  layerStyleRef = "layer.";
  layerRef = "document.layers[";
  styleSwitch = "]";
  visibleVar = "show";
  hiddenVar="hide";
}
if ((navigator.appName == "Netscape")&&(parseInt(navigator.appVersion)>=5)){
  nav = true;
  layerStyleRef = ".";
  layerRef = "document.getElementById(";
  styleSwitch = ").style";
  visibleVar = "visible";
  hiddenVar="hidden";
}
if (document.all){
  nav = false;
  layerStyleRef = "layer.style.";
  layerRef = "document.all[";
  styleSwitch = "].style";
  visibleVar = "visible";
  hiddenVar="hidden";
}
function showLayer(layerName){
  eval(layerRef + '"' + layerName + '"' + styleSwitch + '.visibility="'+visibleVar+'"');
}

function hideLayer(layerName){
  eval(layerRef + '"' + layerName + '"' + styleSwitch + '.visibility="'+hiddenVar+'"');
}
var blnImg = true;
function hideLr(){
	blnImg=false;
	self.setTimeout('timerHidelr()', 50);
}
function timerHidelr(){
	if(!blnImg)hideLayer('about');
}


var preImages = new Array()
var loaded = new Array()
var currCount = 0
var preloadFlag = false

function changeImages() {
if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			if (document[changeImages.arguments[i]]) document[changeImages.arguments[i]].src = changeImages.arguments[i+1]
	}
}}

function changeImagesX() {
if(document.getElementById){

if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImagesX.arguments.length; i+=2) {
			if (document[changeImagesX.arguments[i]]) document[changeImagesX.arguments[i]].src = changeImagesX.arguments[i+1]
	}
}
	}else{
	
if (document.about.document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImagesX.arguments.length; i+=2) {
			if (document.about.document[changeImagesX.arguments[i]]) document.about.document[changeImagesX.arguments[i]].src = changeImagesX.arguments[i+1]
	}
}
	
}
}

function checkLoad() {
if (currCount == preImages.length) { 
	window.status='Done.'
	preloadFlag = true;
	return
}
for (var i in preImages) {
	if (loaded[i] == false && preImages[i].complete) {
		loaded[i] = true
		currCount++
		window.status='Preloading images '+currCount+' of '+preImages.length
	}
}
setTimeout("checkLoad()",10)
}

function preloadImages() {
for (var i = 0; i < preloadImages.arguments.length; i++) {
	preImages[i] = new Image()
	preImages[i].src = preloadImages.arguments[i]
}
window.status='Preloading images '+currCount+' of '+preImages.length
for (var i in preImages) loaded[i] = false
checkLoad()
}

function showStatus(msg){
	self.status = msg;
return true;
}