function Folder(folderDescription, hreference) //constructor 
{ 
//constant data 
	this.desc = folderDescription 
	this.hreference = hreference 
	this.id = -1 
	this.navObj = 0
	this.iconImg = 0 
	this.nodeImg = 0 
	this.isLastNode = 0 

//dynamic data 
	this.isOpen = true 
	this.iconSrc = "../images/qx_7.gif" 
	this.children = new Array 
	this.nChildren = 0 

//methods 
	this.initialize = initializeFolder 
	this.setState = setStateFolder 
	this.addChild = addChild 
	this.createIndex = createEntryIndex 
	this.hide = hideFolder 
	this.display = display 
	this.renderOb = drawFolder 
	this.totalHeight = totalHeight 
	this.subEntries = folderSubEntries 
	this.outputLink = outputFolderLink 
} 

function setStateFolder(isOpen) 
{ 
	var subEntries 
	var totalHeight 
	var fIt = 0 
	var i=0 

	if (isOpen == this.isOpen) 
	return 

	if (browserVersion == 2) 
	{ 
		totalHeight = 0 
		for (i=0; i < this.nChildren; i++) 
		totalHeight = totalHeight + this.children[i].navObj.clip.height 
		subEntries = this.subEntries() 
		if (this.isOpen) 
		totalHeight = 0 - totalHeight 
		for (fIt = this.id + subEntries + 1; fIt < nEntries; fIt++) 
		indexOfEntries[fIt].navObj.moveBy(0, totalHeight) 
	} 
	this.isOpen = isOpen 
	propagateChangesInState(this) 
} 

function propagateChangesInState(folder) 
{ 
	var i=0 

	if (folder.isOpen) 
	{ 
		if (folder.nodeImg) 
		if (folder.isLastNode) 
		folder.nodeImg.src = "../images/ftv2mlastnode.gif" 
		else 
		folder.nodeImg.src = "../images/ftv2mnode.gif" 
		folder.iconImg.src = "../images/qx_7.gif" 
		for (i=0; i<folder.nChildren; i++) 
		folder.children[i].display() 
	} 
	else 
	{ 
		if (folder.nodeImg) 
		if (folder.isLastNode) 
		folder.nodeImg.src = "../images/ftv2plastnode.gif" 
		else 
		folder.nodeImg.src = "../images/ftv2pnode.gif" 
		folder.iconImg.src = "../images/qx_5.gif" 
		for (i=0; i<folder.nChildren; i++) 
		folder.children[i].hide() 
	} 
} 

function hideFolder() 
{ 
	if (browserVersion == 1) 
	{ 
		if (this.navObj.style.display == "none") 
		return 
		this.navObj.style.display = "none" 
	} else 
	{ 
		if (this.navObj.visibility == "hiden") 
		return 
		this.navObj.visibility = "hiden" 
	} 
	this.setState(0)
}

function initializeFolder(level, lastNode, leftSide) 
{ 
	var j=0 
	var i=0 
	var numberOfFolders 
	var numberOfDocs 
	var nc 

	nc = this.nChildren 

	this.createIndex() 

	var auxEv = "" 

	if (browserVersion > 0) 
	auxEv = "<a href='javascript:clickOnNode("+this.id+")'>" 
	else 
	auxEv = "<a>" 

if (level>0) 
	if (lastNode) //the last 'brother' in the children array 
	{ 
		this.renderOb(leftSide + auxEv + "<img name='nodeIcon" + this.id + "' src='../images/ftv2mlastnode.gif' width=16 height=22 border=0></a>") 
		leftSide = leftSide + "<img src='../images/ftv2blank.gif' width=16 height=22>" 
		this.isLastNode = 1 
	} 
	else 
	{ 
		this.renderOb(leftSide + auxEv + "<img name='nodeIcon" + this.id + "' src='../images/ftv2mnode.gif' width=16 height=22 border=0></a>") 
		leftSide = leftSide + "<img src='../images/ftv2vertline.gif' width=16 height=22>" 
		this.isLastNode = 0 
	}  
else 
	this.renderOb("") 

	if (nc > 0) 
	{ 
		level = level + 1 
		for (i=0 ; i < this.nChildren; i++) 
		{ 
			if (i == this.nChildren-1) 
			this.children[i].initialize(level, 1, leftSide) 
			else 
			this.children[i].initialize(level, 0, leftSide) 
		} 
	} 
} 

function drawFolder(leftSide) 
{ 
	if (browserVersion == 2) { 
		if (!doc.yPos) 
			doc.yPos=8 
			doc.write("<layer id='folder" + this.id + "' top=" + doc.yPos + " visibility=hiden>") 
	} 

	doc.write("<table ") 
	if (browserVersion == 1) 
	doc.write(" id='folder" + this.id + "' style='position:block;' ") 
	doc.write(" border=0 cellspacing=0 cellpadding=0>") 
	doc.write("<tr><td>") 
	doc.write(leftSide) 
	this.outputLink() 
	doc.write("<img name='folderIcon" + this.id + "' ") 
	doc.write("src='" + this.iconSrc+"' border=0></a>") 
	doc.write("</td><td valign=middle nowrap>") 
	if (USETEXTLINKS) 
	{ 
		this.outputLink() 
		doc.write(this.desc + "</a>") 
	} 
	else 
		doc.write(this.desc) 
		doc.write("</td>") 
		doc.write("</table>") 

	if (browserVersion == 2) { 
	doc.write("</layer>") 
	} 

	if (browserVersion == 1) { 
		this.navObj = doc.all["folder"+this.id] 
		this.iconImg = doc.all["folderIcon"+this.id] 
		this.nodeImg = doc.all["nodeIcon"+this.id] 
	} else if (browserVersion == 2) { 
		this.navObj = doc.layers["folder"+this.id] 
		this.iconImg = this.navObj.document.images["folderIcon"+this.id] 
		this.nodeImg = this.navObj.document.images["nodeIcon"+this.id] 
		doc.yPos=doc.yPos+this.navObj.clip.height 
	} 
} 

function outputFolderLink() 
{ 
if (this.hreference) 
{ 
doc.write("<a href='" + this.hreference + "' TARGET=\"basefrm\" ") 
if (browserVersion > 0) 
doc.write("onClick='javascript:clickOnFolder("+this.id+")'") 
doc.write(">") 
} 
else 
doc.write("<a>") 
// doc.write("<a href='javascript:clickOnFolder("+this.id+")'>") 
} 

function addChild(childNode) 
{ 
this.children[this.nChildren] = childNode 
this.nChildren++ 
return childNode 
} 

function folderSubEntries() 
{ 
var i = 0 
var se = this.nChildren 

for (i=0; i < this.nChildren; i++){ 
if (this.children[i].children) //is a folder 
se = se + this.children[i].subEntries() 
} 

return se 
} 


// Definition of class Item (a document or link inside a Folder) 
// ************************************************************* 

function Item(itemDescription, itemLink) // Constructor 
{ 
// constant data 
this.desc = itemDescription 
this.link = itemLink 
this.id = -1 //initialized in initalize() 
this.navObj = 0 //initialized in render() 
this.iconImg = 0 //initialized in render() 
this.iconSrc = "../images/qx_6.gif" 

// methods 
this.initialize = initializeItem 
this.createIndex = createEntryIndex 
this.hide = hideItem 
this.display = display 
this.renderOb = drawItem 
this.totalHeight = totalHeight 
} 

function hideItem() 
{ 
if (browserVersion == 1) { 
if (this.navObj.style.display == "none") 
return 
this.navObj.style.display = "none" 
} else { 
if (this.navObj.visibility == "hiden") 
return 
this.navObj.visibility = "hiden" 
} 
} 

function initializeItem(level, lastNode, leftSide) 
{ 
this.createIndex() 

if (level>0) 
if (lastNode) //the last 'brother' in the children array 
{ 
this.renderOb(leftSide + "<img src='../images/ftv2lastnode.gif' width=16 height=22>") 
leftSide = leftSide + "<img src='../images/ftv2blank.gif' width=16 height=22>" 
} 
else 
{ 
this.renderOb(leftSide + "<img src='../images/ftv2node.gif' width=16 height=22>") 
leftSide = leftSide + "<img src='../images/ftv2vertline.gif' width=16 height=22>" 
} 
else 
this.renderOb("") 
} 

function drawItem(leftSide) 
{ 
if (browserVersion == 2) 
doc.write("<layer id='item" + this.id + "' top=" + doc.yPos + " visibility=hiden>") 

doc.write("<table ") 
if (browserVersion == 1) 
doc.write(" id='item" + this.id + "' style='position:block;' ") 
doc.write(" border=0 cellspacing=0 cellpadding=0>") 
doc.write("<tr><td>") 
doc.write(leftSide) 
//doc.write("<a href=" + this.link + ">") 
doc.write("<img id='itemIcon"+this.id+"' ") 
doc.write("src='"+this.iconSrc+"' border=0>") 
//doc.write("</a>") 
doc.write("</td><td valign=middle nowrap>") 
if (USETEXTLINKS) 
doc.write("<a href=" + this.link + ">" + this.desc + "</a>") 
else 
doc.write(this.desc) 
doc.write("</table>") 

if (browserVersion == 2) 
doc.write("</layer>") 

if (browserVersion == 1) { 
this.navObj = doc.all["item"+this.id] 
this.iconImg = doc.all["itemIcon"+this.id] 
} else if (browserVersion == 2) { 
this.navObj = doc.layers["item"+this.id] 
this.iconImg = this.navObj.document.images["itemIcon"+this.id] 
doc.yPos=doc.yPos+this.navObj.clip.height 
} 
} 


// Methods common to both objects (pseudo-inheritance) 
// ******************************************************** 

function display() 
{ 
if (browserVersion == 1) 
this.navObj.style.display = "block" 
else 
this.navObj.visibility = "show" 
} 

function createEntryIndex() 
{ 
this.id = nEntries 
indexOfEntries[nEntries] = this 
nEntries++ 
} 

// total height of subEntries open 
function totalHeight() //used with browserVersion == 2 
{ 
var h = this.navObj.clip.height 
var i = 0 

if (this.isOpen) //is a folder and _is_ open 
for (i=0 ; i < this.nChildren; i++) 
h = h + this.children[i].totalHeight() 

return h 
} 


// Events 
// ********************************************************* 

function clickOnFolder(folderId) 
{ 
var clicked = indexOfEntries[folderId] 

if (!clicked.isOpen) 
clickOnNode(folderId) 

return 

if (clicked.isSelected) 
return 
} 

function clickOnNode(folderId) 
{ 
var clickedFolder = 0 
var state = 0 

clickedFolder = indexOfEntries[folderId] 
state = clickedFolder.isOpen 

clickedFolder.setState(!state) //open<->close 
} 

function initializeDocument() 
{ 
if (doc.all) 
browserVersion = 1 //IE4 
else 
if (doc.layers) 
browserVersion = 2 //NS4 
else 
browserVersion = 0 //other 

foldersTree.initialize(0, 1, "") 
foldersTree.display()

if (browserVersion > 0) 
{ 
doc.write("<layer top="+indexOfEntries[nEntries-1].navObj.top+"> </layer>") 

// close the whole tree 
clickOnNode(0) 
// open the root folder 
clickOnNode(0) 
} 
} 

// Auxiliary Functions for Folder-Treee backward compatibility 
// ********************************************************* 

function gFld(description, hreference) 
{ 
folder = new Folder(description, hreference) 
return folder 
} 

function gLnk(target, description, linkData) 
{ 
fullLink = "" 

if (target==0) 
{ 
fullLink = "'"+linkData+"' target=\"basefrm\"" 
} 
else 
{ 
if (target==1) 
fullLink = "'http://"+linkData+"' target=_blank" 
else 
fullLink = "'http://"+linkData+"' target=\"basefrm\"" 
} 

linkItem = new Item(description, fullLink) 
return linkItem 
} 

function insFld(parentFolder, childFolder) 
{ 
	return parentFolder.addChild(childFolder) 
} 

function insDoc(parentFolder, document) 
{ 
	parentFolder.addChild(document) 
} 

USETEXTLINKS = 0 
indexOfEntries = new Array 
nEntries = 0 
doc = document 
browserVersion = 0 
selectedFolder=0

function MM_reloadPage(init) {  //reloads the window if Nav4 resized
  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
MM_reloadPage(true);