var isNN4, isIE4, isDOM;
if (document.getElementById) {
isDOM = true;
}
else if (parseInt(navigator.appVersion) <= 4) {
if (navigator.appName == "Netscape") {
isNN4 = true;
}
if (navigator.appName == "Microsoft Internet Explorer") {
isIE4 = true;
}
}
var currentTab = "Tab2";
var currentFolder = "box";

var trainTab = "trainTab1";
var trainFolder = "training";

function turnOn(newTab, newFolder) {
if (currentTab != newTab) {
var thisTab = document.getElementById(newTab);
var oldTab = document.getElementById(currentTab);
currentTab = newTab;

var thisFolder = document.getElementById(newFolder);
thisFolder.style.visibility = "visible";
var oldFolder = document.getElementById(currentFolder);
oldFolder.style.visibility = "hidden";
currentFolder = newFolder;
}
}


function trainOn(nTab, nFolder) {
if (trainTab != nTab) {
var thistTab = document.getElementById(nTab);
var trainoldTab = document.getElementById(trainTab);
trainTab = nTab;

var thistFolder = document.getElementById(nFolder);
thistFolder.style.visibility = "visible";
var trainoldFolder = document.getElementById(trainFolder);
trainoldFolder.style.visibility = "hidden";
trainFolder = nFolder;
}
}
var lastItem = 'about1';
var lastItem2 = 'new';
var lastItem4 = 'training';

if (document.layers)
	{
		visible = 'show';
		hidden = 'hide';
	}
	else if (document.all)
	{
		visible = 'visible';
		hidden = 'hidden';
	}
	

	function submenu(item)
	{
		if (document.layers)
		{
			daLast = document.layers[lastItem];
			daItem = document.layers[item];
		
		}
		else if (document.all)
		{
			daLast = document.all(lastItem).style;
			daItem = document.all(item).style;
		}

		daLast.visibility = hidden;
		daItem.visibility = visible;

		lastItem = item;
	}
	
function submenu2(item)
	{
		if (document.layers)
		{
			daLast = document.layers[lastItem2];
			daItem = document.layers[item];
		
		}
		else if (document.all)
		{
			daLast = document.all(lastItem2).style;
			daItem = document.all(item).style;
		}

		daLast.visibility = hidden;
		daItem.visibility = visible;

		lastItem2 = item;
	}
	
function submenu3(item)
	{
		if (document.layers)
		{
			daLast = document.layers[lastItem3];
			daItem = document.layers[item];
		
		}
		else if (document.all)
		{
			daLast = document.all(lastItem3).style;
			daItem = document.all(item).style;
		}

		daLast.visibility = hidden;
		daItem.visibility = visible;

		lastItem3 = item;
	}
	
	function submenu4(item)
	{
		if (document.layers)
		{
			daLast = document.layers[lastItem4];
			daItem = document.layers[item];
		
		}
		else if (document.all)
		{
			daLast = document.all(lastItem4).style;
			daItem = document.all(item).style;
		}

		daLast.visibility = hidden;
		daItem.visibility = visible;

		lastItem4 = item;
	}	
	
	function submenu5(item)
	{
		if (document.layers)
		{
			daLast = document.layers[lastItem5];
			daItem = document.layers[item];
		
		}
		else if (document.all)
		{
			daLast = document.all(lastItem5).style;
			daItem = document.all(item).style;
		}

		daLast.visibility = hidden;
		daItem.visibility = visible;

		lastItem5 = item;
	}	
		
function show(text, img)
{
if (document.layers)
		{
daText = document.layers[text];
daImg = document.layers[img];
	}
else if (document.all)
		{
daText = document.all(text).style;
daImg = document.all(img).style;
		}	
daText.visibility = visible;
daImg.visibility = hidden;
	}
	
function hide(text, img)
{
if (document.layers)
		{
daText = document.layers[text];
daImg = document.layers[img];
	}
else if (document.all)
		{
daText = document.all(text).style;
daImg = document.all(img).style;
		}	
daText.visibility = hidden;
daImg.visibility = visible;
	}

function showdev(text, img1, img2, img3)
{
if (document.layers)
		{
daText = document.layers[text];
daImg1 = document.layers[img1];
daImg2 = document.layers[img2];
daImg3 = document.layers[img3];
	}
else if (document.all)
		{
daText = document.all(text).style;
daImg1 = document.all(img1).style;
daImg2 = document.all(img2).style;
daImg3 = document.all(img3).style;
		}	
daText.visibility = visible;
daImg1.visibility = hidden;
daImg2.visibility = hidden;
daImg3.visibility = hidden;
	}
	
function hidedev(text, img1, img2, img3)
{
if (document.layers)
		{
daText = document.layers[text];
daImg1 = document.layers[img1];
daImg2 = document.layers[img2];
daImg3 = document.layers[img3];
	}
else if (document.all)
		{
daText = document.all(text).style;
daImg1 = document.all(img1).style;
daImg2 = document.all(img2).style;
daImg3 = document.all(img3).style;
		}	
daText.visibility = hidden;
daImg1.visibility = visible;
daImg2.visibility = visible;
daImg3.visibility = visible;
	}	

function spec(URL) {
eval("window.open(URL, 'DocHouse','toolbar=no,scrollbars=auto,location=no,statusbar=1,menubar=1,resizable=1,width=850,height=595,left=150,top=150')");

}
	
function popup(URL) {
eval("window.open(URL, 'DocHouse','toolbar=no,scrollbars=yes,location=no,statusbar=1,menubar=1,resizable=1,width=800,height=600,left=150,top=150')");

}

function doclist(URL) {
eval("window.open(URL, 'DocHouse','toolbar=no,scrollbars=auto,location=no,statusbar=no,menubar=no,resizable=yes,width=350,height=450,left=170,top=240')");

}

function nav(URL) {
opener.location = URL;
}