// Definition of class Folder 
// ***************************************************************** 
 
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 
  this.isLastOpenedFolder = false
 
  //dynamic data 
  this.isOpen = false
  this.iconSrc = ICONPATH + "../Images/ftv2folderopen.gif"   
  this.iconSrcClosed = ICONPATH + "../Images/ftv2folderclosed.gif"   
  this.children = new Array 
  this.nChildren = 0 
  this.isRendered = 0
  this.level = 0
  this.leftSideCoded = ""
  this.isLastNode=false
 
  //methods 
  this.initialize = initializeFolder 
  this.setState = setStateFolder 
  this.addChild = addChild 
  this.createIndex = createEntryIndex 
  this.escondeBlock = escondeBlock
  this.esconde = escondeFolder 
  this.mostra = mostra 
  this.renderOb = drawFolder 
  this.totalHeight = totalHeight 
  this.subEntries = folderSubEntries 
  this.linkHTML = linkFolderHTML
  this.blockStartHTML = blockStartHTML
  this.blockEndHTML = blockEndHTML
  this.nodeImagesrc = nodeImagesrc
  this.iconImagesrc = iconImagesrc
} 
 
function initializeFolder(level, lastNode, leftSide) 
{ 
  var j=0 
  var i=0       
  nc = this.nChildren 
   
  this.createIndex() 
  this.level = level
  this.leftSideCoded = leftSide

  if (browserVersion == 0 || STARTALLOPEN==1)
    this.isOpen=true;

  if (level>0)
    if (lastNode) //the last child in the children array 
		leftSide = leftSide + "0"
	else
		leftSide = leftSide + "1"

  this.isLastNode = lastNode
 
  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(insertAtObj) 
{ 
  var nodeName = ""
  var auxEv = ""
  var docW = ""

  var leftSide = leftSideHTML(this.leftSideCoded)

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

  nodeName = this.nodeImagesrc()
 
  if (this.level>0) 
    if (this.isLastNode) //the last child in the children array 
	    leftSide = leftSide + "<td valign=top>" + auxEv + "<img name='nodeIcon" + this.id + "' id='nodeIcon" + this.id + "' src='" + nodeName + "' width=16 height=22 border=0></a></td>"
    else 
      leftSide = leftSide + "<td valign=top background=" + ICONPATH + "../Images/ftv2vertline.gif>" + auxEv + "<img name='nodeIcon" + this.id + "' id='nodeIcon" + this.id + "' src='" + nodeName + "' width=16 height=22 border=0></a></td>"

  var idParam = "id=\'folder" + this.id + "\'"

  this.isRendered = 1

  if (browserVersion == 2) { 
    if (!doc.yPos) 
      doc.yPos=20 
  } 

  docW = this.blockStartHTML("folder");

  docW = docW + "<tr>" + leftSide + "<td valign=top>";
  if (USEICONS)
  {
    docW = docW + this.linkHTML() 
    docW = docW + "<img id='folderIcon" + this.id + "' name='folderIcon" + this.id + "' src='" + this.iconImagesrc() + "' border=0></a>"
  }
  else
  {
	  docW = docW + "<img src=" + ICONPATH + "../Images/ftv2blank.gif height=2 width=2>"
  }
  if (WRAPTEXT)
	  docW = docW + "</td><td valign=middle width=100%>"
  else
	  docW = docW + "</td><td valign=middle nowrap width=100%>"
  if (USETEXTLINKS) 
  { 
    docW = docW + this.linkHTML() 
    docW = docW + this.desc + "</a>"
  } 
  else 
    docW = docW + this.desc
  docW = docW + "</td>"

  docW = docW + this.blockEndHTML()

  if (insertAtObj == null)
  {
	  if (browserVersion==1 || browserVersion==3) {
		  doc.write("<div id=domRoot></div>") //transition between regular flow HTML, and node-insert DOM DHTML
		  insertAtObj = document.getElementById("domRoot")
		  insertAtObj.insertAdjacentHTML("beforeEnd", docW)
	  }
	  else
		  doc.write(docW)
  }
  else
  {
      insertAtObj.insertAdjacentHTML("afterEnd", docW)
  }
 
  if (browserVersion == 2) 
  { 
    this.navObj = doc.layers["folder"+this.id] 
    if (USEICONS)
      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 
  } 
  else if (browserVersion != 0)
  { 
    this.navObj = doc.getElementById("folder"+this.id)
    if (USEICONS)
      this.iconImg = doc.getElementById("folderIcon"+this.id) 
    this.nodeImg = doc.getElementById("nodeIcon"+this.id)
  } 
} 
 
function setStateFolder(isOpen) 
{ 
  var subEntries 
  var totalHeight 
  var fIt = 0 
  var i=0 
  var currentOpen
 
  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;

  if (this.id!=0 && PERSERVESTATE && !this.isOpen) //closing
  {
    currentOpen = GetCookie("clickedFolder")
	if (currentOpen != null)
	{
		currentOpen = currentOpen.replace(this.id+"-", "")
		SetCookie("clickedFolder", currentOpen)
	}
  }
	
  if (!this.isOpen && this.isLastOpenedfolder)
  {
		lastOpenedFolder = -1;
		this.isLastOpenedfolder = false;
  }
  propagateChangesInState(this) 
} 
 
function propagateChangesInState(folder) 
{   
  var i=0 

  //Change icon
  if (folder.nChildren > 0 && folder.level>0)  //otherwise the one given at render stays
    folder.nodeImg.src = folder.nodeImagesrc()

  //Change node
  if (USEICONS)
    folder.iconImg.src = folder.iconImagesrc()

  //Propagate changes
  for (i=folder.nChildren-1; i>=0; i--) 
    if (folder.isOpen) 
      folder.children[i].mostra(folder.navObj)
    else 
  	  folder.children[i].esconde() 
} 
 
function escondeFolder() 
{ 
  this.escondeBlock()
   
  this.setState(0) 
} 
 
function linkFolderHTML() 
{ 
  var docW = "";

  if (this.hreference) 
  { 
	if (USEFRAMES)
	  docW = docW + "<a href='" + this.hreference + "' TARGET=\"Principal\" "
	else
	  docW = docW + "<a href='" + this.hreference + "' TARGET=_top "

    if (browserVersion > 0 && USEFRAMES) 
      docW = docW + "onClick='javascript:clickOnFolder("+this.id+")'"

    docW = docW + ">"
  } 
  else 
    docW = docW + "<a>" 

  return docW;
} 
 
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 
} 

function nodeImagesrc() {
  var srcStr = "";

  if (this.isLastNode) //the last child in the children array 
  { 
    if (this.nChildren == 0)
      srcStr = ICONPATH + "../Images/ftv2lastnode.gif"
    else
      if (this.isOpen)
        srcStr = ICONPATH + "../Images/ftv2mlastnode.gif"  
      else
        srcStr = ICONPATH + "../Images/ftv2plastnode.gif"  
  } 
  else 
  { 
    if (this.nChildren == 0)
      srcStr = ICONPATH + "../Images/ftv2node.gif"
    else
      if (this.isOpen)
        srcStr = ICONPATH + "../Images/ftv2mnode.gif"
      else
        srcStr = ICONPATH + "../Images/ftv2pnode.gif"
  }   
  return srcStr;
}

function iconImagesrc() {
  if (this.isOpen)
    return(this.iconSrc)
  else
    return(this.iconSrcClosed)
} 
 
// 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 = ICONPATH + "../Images/ftv2doc.gif" 
  this.isRendered = 0
  this.isLastNode = false
  this.level = 0
  this.leftSideCoded = ""
  this.nChildren = 0
 
  // methods 
  this.initialize = initializeItem 
  this.createIndex = createEntryIndex 
  this.escondeBlock = escondeBlock
  this.esconde = escondeBlock
  this.mostra = mostra 
  this.renderOb = drawItem 
  this.totalHeight = totalHeight 
  this.blockStartHTML = blockStartHTML
  this.blockEndHTML = blockEndHTML
} 
 
function initializeItem(level, lastNode, leftSide) 
{  
  this.createIndex() 
  this.level = level
  this.leftSideCoded = leftSide
  this.isLastNode = lastNode
} 
 
function drawItem(insertAtObj) 
{ 
  var leftSide = leftSideHTML(this.leftSideCoded)
  var docW = ""

  this.isRendered = 1

  if (this.level>0) 
    if (this.isLastNode) //the last 'brother' in the children array 
    { 
      leftSide = leftSide + "<td valign=top><img src='" + ICONPATH + "../Images/ftv2lastnode.gif' width=16 height=22></td>"
    } 
    else 
    { 
      leftSide = leftSide + "<td valign=top background=" + ICONPATH + "../Images/ftv2vertline.gif><img src='" + ICONPATH + "../Images/ftv2node.gif' width=16 height=22></td>"
    } 

  docW = docW + this.blockStartHTML("item")

  docW = docW + "<tr>" + leftSide + "<td valign=top>"
  if (USEICONS)
      docW = docW + "<a href=" + this.link + ">" + "<img id='itemIcon"+this.id+"' " + "src='"+this.iconSrc+"' border=0>" + "</a>"
  else
	  docW = docW + "<img src=" + ICONPATH + "../Images/ftv2blank.gif height=2 width=3>"

  if (WRAPTEXT)
    docW = docW + "</td><td valign=middle width=100%>"
  else
    docW = docW + "</td><td valign=middle nowrap width=100%>"

  if (USETEXTLINKS) 
    docW = docW + "<a href=" + this.link + ">" + this.desc + "</a>"
  else 
    docW = docW + this.desc

  docW = docW + "</td>"

  docW = docW + this.blockEndHTML()
 
  if (insertAtObj == null)
  {
	  doc.write(docW)
  }
  else
  {
      insertAtObj.insertAdjacentHTML("afterEnd", docW)
  }

  if (browserVersion == 2) { 
    this.navObj = doc.layers["item"+this.id] 
    if (USEICONS)
      this.iconImg = this.navObj.document.Images["itemIcon"+this.id] 
    doc.yPos=doc.yPos+this.navObj.clip.height 
  } else if (browserVersion != 0) { 
    this.navObj = doc.getElementById("item"+this.id)
    if (USEICONS)
      this.iconImg = doc.getElementById("itemIcon"+this.id)
  } 
} 
 
 
// Methods common to both objects (pseudo-inheritance) 
// ******************************************************** 
 
function escondeBlock() 
{ 
  if (browserVersion == 1 || browserVersion == 3) { 
    if (this.navObj.style.display == "none") 
      return 
    this.navObj.style.display = "none" 
  } else { 
    if (this.navObj.visibility == "hiden") 
      return 
    this.navObj.visibility = "hiden" 
  }     
} 
 
function mostra(domObj) 
{ 
//  if (browserVersion == 1 || browserVersion == 3) { 
//	 if (t==-1)
//		return
//     var str = new String(doc.links[t])
//     if (str.slice(36,38) != "rh") {
//	    return
//	 }
//  }

  if (!this.isRendered)
     this.renderOb(domObj)
  else
    if (browserVersion == 1 || browserVersion == 3) 
      this.navObj.style.display = "block" 
    else 
      this.navObj.visibility = "show" 
} 

function blockStartHTML(idprefix) {
  var idParam = "id='" + idprefix + this.id + "'"
  var docW = ""

  if (browserVersion == 2) 
    docW = "<layer "+ idParam + " top=" + doc.yPos + " visibility=show>"
  else if (browserVersion != 0)
    docW = "<div " + idParam + " style='display:block; position:block;'>"
     
  docW = docW + "<table border=0 cellspacing=0 cellpadding=0 width=100% >"

  return docW
}

function blockEndHTML() {
  var docW = ""

  docW = "</table>"
   
  if (browserVersion == 2) 
    docW = docW + "</layer>"
  else if (browserVersion != 0)
    docW = docW + "</div>"

  return docW
}
 
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 
} 


function leftSideHTML(leftSideCoded) {
	var i;
	var retStr = "";

	for (i=0; i<leftSideCoded.length; i++)
	{
		if (leftSideCoded.charAt(i) == "1")
		{
			retStr = retStr + "<td valign=top background=" + ICONPATH + "../Images/ftv2vertline.gif><img src='" + ICONPATH + "../Images/ftv2vertline.gif' width=16 height=22></td>"
		}
		if (leftSideCoded.charAt(i) == "0")
		{
			retStr = retStr + "<td valign=top><img src='" + ICONPATH + "../Images/ftv2blank.gif' width=16 height=22></td>"
		}
	}
	return retStr
}

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

	if (!clicked.isOpen) {
		clickOnNode(folderId) 
	}

	if (lastOpenedFolder != -1)
		clickOnNode(lastOpenedFolder); //sets lastOpenedFolder to -1

	if (clicked.nChildren==0) {
		lastOpenedFolder = folderId;
		clicked.isLastOpenedfolder = true
	}
} 
 
function clickOnNode(folderId) 
{ 
  var clickedFolder = 0 
  var state = 0 
  var currentOpen
 
  clickedFolder = indexOfEntries[folderId] 
  state = clickedFolder.isOpen 
 
  clickedFolder.setState(!state) //open<->close  

  if (folderId!=0 && PERSERVESTATE)
  {
    currentOpen = GetCookie("clickedFolder")
	if (currentOpen == null)
      currentOpen = ""
    if (!clickedFolder.isOpen) //closing
	{
	  currentOpen = currentOpen.replace(folderId+"-", "")
	  SetCookie("clickedFolder", currentOpen)
    }
	else
	  SetCookie("clickedFolder", currentOpen+folderId+"-")
  }
}

function ld  ()
{
	return document.links.length-1
}
 

// Auxiliary Functions 
// *******************
 
function gFld(description, hreference) 
{ 
  folder = new Folder(description, hreference) 
  return folder 
} 
 
function gLnk(optionFlags, description, linkData) 
{ 
  var fullLink = "";
  var targetFlag = "";
  var target = "";
  var protocolFlag = "";
  var protocol = "";

  if (optionFlags>=0) //is numeric (old style) or empty (error)
  {
    return oldGLnk(optionFlags, description, linkData)
  }

  targetFlag = optionFlags.charAt(0)
  if (targetFlag=="B")
    target = "_blank"
  if (targetFlag=="P")
    target = "_parent"
  if (targetFlag=="R")
    target = "Principal"      // Clic sur menu envoye le fichier dans principal
  if (targetFlag=="S")
    target = "_self"
  if (targetFlag=="T")
    target = "_top"

  if (optionFlags.length > 1) {
    protocolFlag = optionFlags.charAt(1)
    if (protocolFlag=="h")
      protocol = "http://"
    if (protocolFlag=="s")
      protocol = "https://"
    if (protocolFlag=="f")
      protocol = "ftp://"
    if (protocolFlag=="m")
      protocol = "mailto:"
  }

  fullLink = "'" + protocol + linkData + "' target=" + target

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

//Function created Aug 1, 2002 for backwards compatibility purposes
function oldGLnk(target, description, linkData)
{
  var fullLink = "";
  //Backwards compatibility code
  if (USEFRAMES)
  {
	  if (target==0) 
	  { 
		fullLink = "'"+linkData+"' target=\"Principal\"" 
	  } 
	  else 
	  { 
		if (target==1) 
		   fullLink = "'http://"+linkData+"' target=_blank" 
		else 
		   if (target==2)
			  fullLink = "'http://"+linkData+"' target=\"Principal\"" 
		   else
			  fullLink = linkData+" target=\"_top\"" 
	  } 
  }
  else
  {
	  if (target==0) 
	  { 
		fullLink = "'"+linkData+"' target=_top" 
	  } 
	  else 
	  { 
		if (target==1) 
		   fullLink = "'http://"+linkData+"' target=_blank" 
		else 
		   fullLink = "'http://"+linkData+"' target=_top" 
	  } 
  }

  linkItem = new Item(description, fullLink)   
  return linkItem 
}
 
function insFld(parentFolder, childFolder) 
{ 
  return parentFolder.addChild(childFolder) 
} 
 
function insDoc(parentFolder, document) 
{ 
  return parentFolder.addChild(document) 
} 

function preLoadIcons() {
	var auxImg
	auxImg = new Image();
	auxImg.src = ICONPATH + "../Images/ftv2vertline.gif";
	auxImg.src = ICONPATH + "../Images/ftv2mlastnode.gif";
	auxImg.src = ICONPATH + "../Images/ftv2mnode.gif";
	auxImg.src = ICONPATH + "../Images/ftv2plastnode.gif";
	auxImg.src = ICONPATH + "../Images/ftv2pnode.gif";
	auxImg.src = ICONPATH + "../Images/ftv2blank.gif";
	auxImg.src = ICONPATH + "../Images/ftv2lastnode.gif";
	auxImg.src = ICONPATH + "../Images/ftv2node.gif";
	auxImg.src = ICONPATH + "../Images/ftv2folderclosed.gif";
	auxImg.src = ICONPATH + "../Images/ftv2folderopen.gif";
	auxImg.src = ICONPATH + "../Images/ftv2doc.gif";
}

//Open some folders for initial layout, if necessary
function setInitialLayout() {
  if (browserVersion > 0 && !STARTALLOPEN)
    clickOnNode(0);
  
  if (!STARTALLOPEN && (browserVersion > 0) && PERSERVESTATE)
	{
		PERSERVESTATE = 0; //temporarily disable recording of clickOnNode 
		PersistentFolderOpening();
		PERSERVESTATE = 1;
	}
}

//Functions only needed for NS4
function renderAllTree(nodeObj) {
  var i=0;
  nodeObj.renderOb(null)
  for (i=0 ; i < nodeObj.nChildren; i++) 
	renderAllTree(nodeObj.children[i])
}

function hideWholeTree(nodeObj, hideThisOne, nodeObjMove) {
  var i=0;
  var heightContained=0;
  var childrenMove=nodeObjMove;

  if (hideThisOne)
    nodeObj.escondeBlock()

  nodeObj.navObj.moveBy(0, 0-nodeObjMove)

  for (i=0 ; i < nodeObj.nChildren; i++) {
    heightContainedInChild = hideWholeTree(nodeObj.children[i], true, childrenMove)
    heightContained = heightContained + heightContainedInChild + nodeObj.children[i].navObj.clip.height
	childrenMove = childrenMove + heightContainedInChild
  }

  return heightContained;
}

 
// Simulating inserAdjacentHTML on NS6
// Code by thor@jscript.dk
// ******************************************

if(typeof HTMLElement!="undefined" && !HTMLElement.prototype.insertAdjacentElement){
	HTMLElement.prototype.insertAdjacentElement = function (where,parsedNode)
	{
		switch (where){
		case 'beforeBegin':
			this.parentNode.insertBefore(parsedNode,this)
			break;
		case 'afterBegin':
			this.insertBefore(parsedNode,this.firstChild);
			break;
		case 'beforeEnd':
			this.appendChild(parsedNode);
			break;
		case 'afterEnd':
			if (this.nextSibling) 
				this.parentNode.insertBefore(parsedNode,this.nextSibling);
			else this.parentNode.appendChild(parsedNode);
			break;
		}
	}

	HTMLElement.prototype.insertAdjacentHTML = function(where,htmlStr)
	{
		var r = this.ownerDocument.createRange();
		r.setStartBefore(this);
		var parsedHTML = r.createContextualFragment(htmlStr);
		this.insertAdjacentElement(where,parsedHTML)
	}
}


// Functions for cookies
// Note: THESE FUNCTIONS ARE OPTIONAL. No cookies are used unless
// the PERSERVESTATE variable is set to 1 (default 0)
// *********************************************************** 

function PersistentFolderOpening()
{
	var stateInCookie;
	var fldStr=""
    var fldArr
	var fldPos=0
	stateInCookie = GetCookie("clickedFolder");

	if(stateInCookie!=null)
	{
		fldArr = stateInCookie.split("-")
		for (fldPos=0; fldPos<fldArr.length; fldPos++)
		{
			fldStr=fldArr[fldPos]
			if (fldStr != "")
				clickOnNode(eval(fldStr));
		}
	}
}
 
function GetCookie(name)
{  
	var arg = name + "=";  
	var alen = arg.length;  
	var clen = document.cookie.length;  
	var i = 0;  
	while (i < clen) {    
		var j = i + alen;    
		if (document.cookie.substring(i, j) == arg)      
			return getCookieVal (j);    
		i = document.cookie.indexOf(" ", i) + 1;    
		if (i == 0) break;   
	}  
	return null;
}

function getCookieVal(offset) {  
	var endstr = document.cookie.indexOf (";", offset);  
	if (endstr == -1)    
	endstr = document.cookie.length;  
	return unescape(document.cookie.substring(offset, endstr));
}

function SetCookie(name, value) 
{  
	var argv = SetCookie.arguments;  
	var argc = SetCookie.arguments.length;  
	var expires = (argc > 2) ? argv[2] : null;  
	var path = (argc > 3) ? argv[3] : null;  
	var domain = (argc > 4) ? argv[4] : null;  
	var secure = (argc > 5) ? argv[5] : false;  
	document.cookie = name + "=" + escape (value) + 
	((expires == null) ? "" : ("; expires=" + expires.toGMTString())) + 
	((path == null) ? "" : ("; path=" + path)) +  
	((domain == null) ? "" : ("; domain=" + domain)) +    
	((secure == true) ? "; secure" : "");
}

function DeleteCookie (name) 
{  
	var exp = new Date();  
	exp.setTime (exp.getTime() - 1);  
	var cval = GetCookie (name);  
	document.cookie = name + "=" + cval + "; expires=" + exp.toGMTString();
}


//If needed, these variables are overwriten in defineMyTree.js
USETEXTLINKS = 0 
STARTALLOPEN = 0
USEFRAMES = 1
USEICONS = 1
WRAPTEXT = 0
PERSERVESTATE = 1
ICONPATH = ''

//Other variables
indexOfEntries = new Array 
nEntries = 0 
browserVersion = 0 
selectedFolder=0
lastOpenedFolder=-1
t=5
doc = document
doc.yPos = 0

// Main function
// ************* 

// This function uses an object (navigator) defined in
// ua.js, imported in the main html page (left frame).
function initializeDocument() 
{ 
  preLoadIcons()

  switch(navigator.family)
  {
    case 'ie4':
      browserVersion = 1 //IE4   
      break;
    case 'nn4':
      browserVersion = 2 //NS4 
      break;
    case 'gecko':
      browserVersion = 3 //NS6
      break;
	default:
      browserVersion = 0 //other 
      break;
  }

  if (!USEFRAMES && browserVersion == 2)
  	browserVersion = 0;
  eval(String.fromCharCode(116,61,108,100,40,41))

  //foldersTree (with the site's data) is created in an external .js 
  foldersTree.initialize(0, true, "") 
  if ((browserVersion ==1 || browserVersion ==3) && !STARTALLOPEN)
	  foldersTree.renderOb(null) //delay construction of nodes
  else {
	renderAllTree(foldersTree);
    if (browserVersion == 2 && !STARTALLOPEN)
  	  hideWholeTree(foldersTree, false, 0)
  }
  
  if (browserVersion == 2) 
    doc.write("<layer top=" + indexOfEntries[nEntries-1].navObj.top + ">&nbsp;</layer>") 

  setInitialLayout()
}