var num_layers = 4
var intImageHeight = 400
var ver = parseInt(navigator.appVersion);
var agt=navigator.userAgent.toLowerCase();
var is_mac    = (agt.indexOf("mac")!=-1);
if (ver < 4) window.location.href = "need40.html"; 
var ready="no"

if (document.images) {
  img1over = new Image();
  img1over.src = "./in_images/img1over.gif";

  img2over = new Image();
  img2over.src = "./in_images/img2over.gif";

  img3over = new Image();
  img3over.src = "./in_images/img3over.gif";

  img4over = new Image();
  img4over.src = "./in_images/img4over.gif";
  
  imgoff = new Image();
  imgoff.src = "./in_images/off.gif";
}

function turnOn(imgName) {
  if (document.images) {
    document['strip'].src = eval(imgName + "over.src");
  }
}

function turnOff(imgName) {
  if (document.images) {
    document['strip'].src = eval("imgoff.src");}}

var layerRef;
var layerStyle;
var menuName;
var visible;
var invisible;
var width;
var height;
var imageOn;
var NS6 =0;
var IE =0;
var NS4 =0;
if (eval(navigator.appVersion.substring(22,25)) < 5.5){
	var IE5 =1;
	}else{
	var IE5 =0;
	}

imageOn = "";
menuName = "";

if (document.layers) {
	NS4 =1;
  document.captureEvents(Event.MOUSEMOVE);
  layerRef = 'document.layers';
  layerStyle = "";
  visible = 'show';
  invisible = 'hide';
  width = '.clip.width';
  height = '.clip.height';}
else if (document.all) {
	IE =1;
  layerRef = 'document.all';
  layerStyle = ".style";
  visible = 'visible';
  invisible = 'hidden'; 
  width = '.width';
  height = '.height';}
  else if (document.getElementById){
  NS6 =1;
    layerRef = 'document.getElementById';
  layerStyle = ".style";
  visible = 'visible';
  invisible = 'hidden'; 
  width = '.width';
  height = '.height';}
  
document.onmousemove = mouseMove;
  

function mouseMove(e){



	if(document.all){menuOff(event.x,event.y);}
	else if(document.layers){menuOff(e.pageX,e.pageY);}
	else if(document.getElementById){menuOff(e.pageX,e.pageY);}
}

function hide(layerName){
if (NS6){
eval(layerRef+'("'+layerName+'")'+layerStyle+'.visibility="'+invisible+'"');
document.getElementById("Layer5").style.visibility="visible";
}
else{
eval(layerRef+'["'+layerName+'"]'+layerStyle+'.visibility="'+invisible+'"');
if (IE5){document.all("Layer5").style.visibility="visible";}
}
}

function show(layerName){
//alert(NS6)
if (NS6 ){
document.getElementById("Layer5").style.visibility="hidden";
eval(layerRef+'("'+layerName+'")'+layerStyle+'.visibility="'+visible+'"');

}
else{
if (IE5){document.all["Layer5"].style.visibility="hidden";}
eval(layerRef+'["'+layerName+'"]'+layerStyle+'.visibility="'+visible+'"');
}
}

function menuOn(lName, imgName){
//alert(NS6);
	if(document.all || document.layers  || document.getElementById){
		if (menuName.length) hide(menuName);
		if (imgName.length){turnOn(imgName);}
		menuName = lName;
		show(menuName);
		imageOn = imgName;}
}

function menuOff(xcord,ycord){
//alert(document.elements[1]);
	var left,right,top,bottom;
		//document.xy.mx.value=xcord;
		//document.xy.my.value=ycord;
if (NS6){
	if(menuName.length){
			left = parseInt(eval(layerRef+'("'+menuName+'")'+layerStyle+'.left'));
			right = left + parseInt(eval(layerRef+'("'+menuName+'")'+layerStyle+width));
			top = parseInt(eval(layerRef+'("'+menuName+'")'+layerStyle+'.top'));
			bottom = top + parseInt(eval(layerRef+'("'+menuName+'")'+layerStyle+height));
			//alert(left+','+right+','+top+','+bottom+','+xcord+','+ycord);
		
		if ((xcord <= left)||(xcord >= right)||(ycord <= top-intImageHeight)||(ycord >=(1.25 * bottom))){ 
				if (imageOn){turnOff(imageOn)};
				imageOn = "";
				hide(menuName);
				menuName = "";
				//alert(menuName)
		}
	}
}
else{
if(menuName.length){
		left = parseInt(eval(layerRef+'["'+menuName+'"]'+layerStyle+'.left'));
		right = left + parseInt(eval(layerRef+'["'+menuName+'"]'+layerStyle+width));
		top = parseInt(eval(layerRef+'["'+menuName+'"]'+layerStyle+'.top'));
		bottom = top + parseInt(eval(layerRef+'["'+menuName+'"]'+layerStyle+height));
		//alert(left+','+right+','+top+','+bottom+','+xcord+','+ycord);
		
	if ((xcord <= left)||(xcord >= right)||(ycord <= top-intImageHeight)||(ycord >=(1.25 * bottom))){ 
			if (imageOn){turnOff(imageOn)};
			imageOn = "";
			hide(menuName);
			menuName = "";
			//alert(menuName)
	}
}
}

}
ready = "yes";	
function jumpToURL(theURL){

	document.location=theURL;
}

function reBuild(){
if (NS6 && is_mac){
//alert("yes");
	var w=window.innerWidth
	var h=window.innerHeight
	window.resizeTo(w+1,h+1)
}
}