//****************************************************************
// Keep this copyright notice:
// This copy of the script is the property of the owner of the
// particular web site you were visiting.
// Do not download the script's files from there.
// For a free download and full instructions go to:
// http://www.treeview.net
//****************************************************************


// Log of changes:
//
//      08 Jun 04 - Very small change to one error message
//      21 Mar 04 - Support for folder.addChildren allows for much bigger trees
//      12 May 03 - Support for Safari Beta 3
//      01 Mar 03 - VERSION 4.3 - Support for checkboxes
//      21 Feb 03 - Added support for Opera 7
//      22 Sep 02 - Added maySelect member for node-by-node control
//                  of selection and highlight
//      21 Sep 02 - Cookie values are now separated by cookieCutter
//      12 Sep 02 - VERSION 4.2 - Can highlight Selected Nodes and
//                  can preserve state through external (DB) IDs
//      29 Aug 02 - Fine tune 'supportDeferral' for IE4 and IE Mac
//      25 Aug 02 - Fixes: STARTALLOPEN, and multi-page frameless
//      09 Aug 02 - Fix repeated folder on Mozilla 1.x
//      31 Jul 02 - VERSION 4.1 - Dramatic speed increase for trees
//      with hundreds or thousands of nodes; changes to the control
//      flags of the gLnk function
//      18 Jul 02 - Changes in pre-load images function
//      13 Jun 02 - Add ICONPATH var to allow for gif subdir
//      20 Apr 02 - Improve support for frame-less layout
//      07 Apr 02 - Minor changes to support server-side dynamic feeding
//                  (example: FavoritesManagerASP)


// 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.iconSrc = ICONPATH + "ftv2folderopen.gif";
  this.iconSrcClosed = ICONPATH + "ftv2folderclosed.gif";
  this.children = new Array;
  this.nChildren = 0;
  this.level = 0;
  this.leftSideCoded = "";
  this.isLastNode=false;
  this.parentObj = null;
  this.maySelect=true;
  this.prependHTML = ""

  //dynamic data
  this.isOpen = false
  this.isLastOpenedFolder = false
  this.isRendered = 0

  //methods
  this.initialize = initializeFolder
  this.setState = setStateFolder
  this.addChild = addChild
  this.addChildren = addChildren
  this.createIndex = createEntryIndex
  this.escondeBlock = escondeBlock
  this.esconde = escondeFolder
  this.folderMstr = folderMstr
  this.renderOb = drawFolder
  this.totalHeight = totalHeight
  this.subEntries = folderSubEntries
  this.linkHTML = linkFolderHTML
  this.blockStartHTML = blockStartHTML
  this.blockEndHTML = blockEndHTML
  this.nodeImageSrc = nodeImageSrc
  this.iconImageSrc = iconImageSrc
  this.getID = getID
  this.forceOpeningOfAncestorFolders = forceOpeningOfAncestorFolders
}

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 (typeof this.children[i].initialize == 'undefined') //document node was specified using the addChildren function
      {
        if (typeof this.children[i][0] == 'undefined' || typeof this.children[i] == 'string')
        {
          this.children[i] = ["item incorrectly defined", ""];
        }

        //Basic initialization of the Item object
        //These members or methods are needed even before the Item is rendered
        this.children[i].initialize=initializeItem;
        this.children[i].createIndex=createEntryIndex;
        if (typeof this.children[i].maySelect == 'undefined')
          this.children[i].maySelect=true
        this.children[i].forceOpeningOfAncestorFolders = forceOpeningOfAncestorFolders
      }
      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 i=0

  finalizeCreationOfChildDocs(this)

  var leftSide = leftSideHTML(this.leftSideCoded)

  if (browserVersion > 0)
    auxEv = "<a href='javascript:clickOnNode(\""+this.getID()+"\")'>"
  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 + "ftv2vertline.gif>" + auxEv + "<img name='nodeIcon" + this.id + "' id='nodeIcon" + this.id + "' src='" + nodeName + "' width=16 height=22 border=0></a></td>"

  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(false)
    docW = docW + "<img id='folderIcon" + this.id + "' name='folderIcon" + this.id + "' src='" + this.iconImageSrc() + "' border=0></a>"
  }
  else
  {
      if (this.prependHTML == "")
        docW = docW + "<img src=" + ICONPATH + "ftv2blank.gif height=2 width=2>"
  }
  if (WRAPTEXT)
      docW = docW + "</td>"+this.prependHTML+"<td valign=middle width=100%>"
  else
      docW = docW + "</td>"+this.prependHTML+"<td valign=middle nowrap width=100%>"
  if (USETEXTLINKS)
  {
    docW = docW + this.linkHTML(true)
    docW = docW + this.desc + "</a>"
  }
  else
    docW = docW + this.desc
  docW = docW + "</td>"

  docW = docW + this.blockEndHTML()

  if (insertAtObj == null)
  {
      if (supportsDeferral) {
          doc.write("<div id=domRoot></div>") //transition between regular flow HTML, and node-insert DOM DHTML
          insertAtObj = getElById("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 = getElById("folder"+this.id)
    if (USEICONS)
      this.iconImg = getElById("folderIcon"+this.id)
    this.nodeImg = getElById("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.getID()!=foldersTree.getID() && PRESERVESTATE && !this.isOpen) //closing
  {
     currentOpen = GetCookie("clickedFolder")
     if (currentOpen != null) {
         currentOpen = currentOpen.replace(this.getID()+cookieCutter, "")
         SetCookie("clickedFolder", currentOpen)
     }
  }

  if (!this.isOpen && this.isLastOpenedfolder)
  {
        lastOpenedFolder = null;
        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].folderMstr(folder.navObj)
    else
      folder.children[i].esconde()
  }
}

function escondeFolder()
{
  this.escondeBlock()

  this.setState(0)
}

function linkFolderHTML(isTextLink)
{
  var docW = "";

  if (this.hreference)
  {
      docW = docW + "<a href='" + this.hreference + "' class=\"stroma\" "

    if (isTextLink) {
        docW += "id=\"itemTextLink"+this.id+"\" ";
    }

    if (browserVersion > 0)
      docW = docW + "onClick='javascript:clickOnFolder(\""+this.getID()+"\")'"

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

  return docW;
}

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

//The list can contain either a Folder object or a sub list with the arguments for Item
function addChildren(listOfChildren)
{
  this.children = listOfChildren
  this.nChildren = listOfChildren.length
  for (i=0; i<this.nChildren; i++)
    this.children[i].parentObj = this
}

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 + "ftv2lastnode.gif"
    else
      if (this.isOpen)
        srcStr = ICONPATH + "ftv2mlastnode.gif"
      else
        srcStr = ICONPATH + "ftv2plastnode.gif"
  }
  else
  {
    if (this.nChildren == 0)
      srcStr = ICONPATH + "ftv2node.gif"
    else
      if (this.isOpen)
        srcStr = ICONPATH + "ftv2mnode.gif"
      else
        srcStr = ICONPATH + "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) // Constructor
{
  // constant data
  this.desc = itemDescription

  this.level = 0
  this.isLastNode = false
  this.leftSideCoded = ""
  this.parentObj = null

  this.maySelect=true

  this.initialize = initializeItem;
  this.createIndex = createEntryIndex;
  this.forceOpeningOfAncestorFolders = forceOpeningOfAncestorFolders;

  finalizeCreationOfItem(this)
}

//Assignments that can be delayed when the item is created with folder.addChildren
//The assignments that cannot be delayed are done in addChildren and in initializeFolder
//Additionaly, some assignments are also done in finalizeCreationOfChildDocs itself
function finalizeCreationOfItem(itemArray)
{
  itemArray.navObj = 0 //initialized in render()
  itemArray.iconImg = 0 //initialized in render()
  itemArray.iconSrc = ICONPATH + "ftv2folderopen.gif"
  itemArray.isRendered = 0
  itemArray.nChildren = 0
  itemArray.prependHTML = ""

  // methods
  itemArray.escondeBlock = escondeBlock
  itemArray.esconde = escondeBlock
  itemArray.folderMstr = folderMstr
  itemArray.renderOb = drawItem
  itemArray.totalHeight = totalHeight
  itemArray.blockStartHTML = blockStartHTML
  itemArray.blockEndHTML = blockEndHTML
  itemArray.getID = getID
}

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 = ""

  var fullLink = "href=\""+this.link+"\"  onClick=\"clickOnLink('"+this.getID()+"\', '"+this.link+"','"+this.target+"');return false;\"";
  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 + "ftv2lastnode.gif' width=16 height=22></td>"
    }
    else
    {
      leftSide = leftSide + "<td valign=top background=" + ICONPATH + "ftv2vertline.gif><img src='" + ICONPATH + "ftv2node.gif' width=16 height=22></td>"
    }

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

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

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

  if (USETEXTLINKS)
    docW = docW + "<a " + fullLink + " id=\"itemTextLink"+this.id+"\">" + 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 = getElById("item"+this.id)
    if (USEICONS)
      this.iconImg = getElById("itemIcon"+this.id)
  }
}


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

function forceOpeningOfAncestorFolders() {
  if (this.parentObj == null || this.parentObj.isOpen)
    return
  else {
    this.parentObj.forceOpeningOfAncestorFolders()
    clickOnNodeObj(this.parentObj)
  }
}

function escondeBlock()
{
  if (browserVersion == 1 || browserVersion == 3) {
    if (this.navObj.style.display == "none")
      return
    this.navObj.style.display = "none"
  } else {
    if (this.navObj.visibility == "hidden")
      return
    this.navObj.visibility = "hidden"
  }
}

function folderMstr(domObj)
{
  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()
{
  nEntries++
  var idkategorie;
  if (this.hreference.indexOf("k=")){
   idkategorie=this.hreference.substr(this.hreference.indexOf("k=")+2,this.hreference.length-this.hreference.indexOf("k=")+2);
   if (idkategorie < 0) idkategorie=nEntries;
   }
  this.id = idkategorie
  indexOfEntries[idkategorie] = this
}

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

function getID()
{
  //define a .xID in all nodes (folders and items) if you want to PERVESTATE that
  //work when the tree changes. The value eXternal value must be unique for each
  //node and must node change when other nodes are added or removed
  //The value may be numeric or string, but cannot have the same char used in cookieCutter
  if (typeof this.xID != "undefined")
    return this.xID
  else
    return this.id
}


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

function clickOnFolder(folderId)
{
  var clicked = findObj(folderId)

  if (typeof clicked=='undefined' || clicked==null)
  {
    alert("Treeview was not able to find the node object corresponding to ID=" + folderId + ". If the configuration file sets a.xID values, it must set them for ALL nodes, including the foldersTree root.")
    return;
  }

  if (!clicked.isOpen) {
    clickOnNodeObj(clicked)
  }

  if (lastOpenedFolder != null && lastOpenedFolder != folderId)
    clickOnNode(lastOpenedFolder); //sets lastOpenedFolder to null

  if (clicked.nChildren==0) {
    lastOpenedFolder = folderId;
    clicked.isLastOpenedfolder = true
  }

  if (isLinked(clicked.hreference)) {
      highlightObjLink(clicked);
  }
}

function clickOnNode(folderId)
{
  fOb = findObj(folderId);
  if (typeof fOb=='undefined' || fOb==null)
  {
    alert("Treeview was not able to find the node object corresponding to ID=" + folderId + ". If the configuration file sets a.xID, it must set foldersTree.xID as well.")
    return;
  }

  clickOnNodeObj(fOb);
}

function clickOnNodeObj(folderObj)
{
  var state = 0
  var currentOpen

  state = folderObj.isOpen
  folderObj.setState(!state) //open<->close

  if (folderObj.id!=foldersTree.id && PRESERVESTATE)
  {
    currentOpen = GetCookie("clickedFolder")
    if (currentOpen == null)
      currentOpen = ""

    if (!folderObj.isOpen) //closing
    {
      currentOpen = currentOpen.replace(folderObj.getID()+cookieCutter, "")
      SetCookie("clickedFolder", currentOpen)
    }
    else
      SetCookie("clickedFolder", currentOpen+folderObj.getID()+cookieCutter)
  }
}

function clickOnLink(clickedId, target, windowName) {
    highlightObjLink(findObj(clickedId));
        window.location(windowName);
}


// Auxiliary Functions
// *******************

function finalizeCreationOfChildDocs(folderObj) {
  for(i=0; i < folderObj.nChildren; i++)  {
    child = folderObj.children[i]
    if (typeof child[0] != 'undefined')
    {
      // Amazingly, arrays can have members, so   a = ["a", "b"]; a.desc="asdas"   works
      // If a doc was inserted as an array, we can transform it into an itemObj by adding
      // the missing members and functions
      child.desc = child[0]
      setItemLink(child, GLOBALTARGET, child[1])
      finalizeCreationOfItem(child)
    }
  }
}

function findObj(id)
{
  var i=0;
  var nodeObj;

  if (typeof foldersTree.xID != "undefined") {
    nodeObj = indexOfEntries[i];
    for(i=0;i<nEntries&&indexOfEntries[i].xID!=id;i++) //may need optimization
      ;
    id = i
  }
    return indexOfEntries[id];
}

function isLinked(hrefText) {
    var result = true;
    result = (result && hrefText !=null);
    result = (result && hrefText != '');
    result = (result && hrefText.indexOf('undefined') < 0);
    result = (result && hrefText.indexOf('parent.op') < 0);
    return result;
}

// Do highlighting by changing background and foreg. colors of folder or doc text
function highlightObjLink(nodeObj) {
  if (!HIGHLIGHT || nodeObj==null || nodeObj.maySelect==false) {//node deleted in DB
    return;
  }

  if (browserVersion == 1 || browserVersion == 3) {
    var clickedDOMObj = getElById('itemTextLink'+nodeObj.id);
    if (clickedDOMObj != null) {
        if (lastClicked != null) {
            var prevClickedDOMObj = getElById('itemTextLink'+lastClicked.id);
            prevClickedDOMObj.style.color=lastClickedColor;
            prevClickedDOMObj.style.backgroundColor=lastClickedBgColor;
        }

        lastClickedColor    = clickedDOMObj.style.color;
        lastClickedBgColor  = clickedDOMObj.style.backgroundColor;
/*        clickedDOMObj.style.color=HIGHLIGHT_COLOR;
        clickedDOMObj.style.backgroundColor=HIGHLIGHT_BG;*/
	clickedDOMObj.className='stromazvyrazneni';
    }
  }
  lastClicked = nodeObj;

}

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

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

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

function gLnk(optionFlags, description, linkData)
{
  newItem = new Item(description);
  setItemLink(newItem, optionFlags, linkData);
  return newItem;
}

function setItemLink(item, optionFlags, linkData) {
  var targetFlag = "";



  item.link = linkData;

}

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

//Open some folders for initial layout, if necessary
function setInitialLayout() {
  if (browserVersion > 0 && !STARTALLOPEN)
    clickOnNodeObj(foldersTree);

  if (!STARTALLOPEN && (browserVersion > 0) && PRESERVESTATE)
        PersistentFolderOpening();
}

//Used with NS4 and STARTALLOPEN
function renderAllTree(nodeObj, parent) {
  var i=0;
  nodeObj.renderOb(parent)
  if (supportsDeferral)
    for (i=nodeObj.nChildren-1; i>=0; i--)
      renderAllTree(nodeObj.children[i], nodeObj.navObj)
  else
    for (i=0 ; i < nodeObj.nChildren; i++)
      renderAllTree(nodeObj.children[i], null)
}

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

  if (hideThisOne)
    nodeObj.escondeBlock()

  if (browserVersion == 2)
    nodeObj.navObj.moveBy(0, 0-nodeObjMove)

  for (i=0 ; i < nodeObj.nChildren; i++) {
    heightContainedInChild = hideWholeTree(nodeObj.children[i], true, childrenMove)
    if (browserVersion == 2) {
      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)
    }
}

function getElById(idVal) {
  if (document.getElementById != null)
    return document.getElementById(idVal)
  if (document.all != null)
    return document.all[idVal]

  alert("Problem getting element by id")
  return null
}


// Functions for cookies
// Note: THESE FUNCTIONS ARE OPTIONAL. No cookies are used unless
// the PRESERVESTATE variable is set to 1 (default 0)
// The separator currently in use is ^ (chr 94)
// ***********************************************************

function PersistentFolderOpening()
{
  var stateInCookie;
  var fldStr=""
  var fldArr
  var fldPos=0
  var id
  var nodeObj
  stateInCookie = GetCookie("clickedFolder");
  SetCookie('clickedFolder', "") //at the end of function it will be back, minus null cases

  if(stateInCookie!=null)
  {
    fldArr = stateInCookie.split(cookieCutter)
    for (fldPos=0; fldPos<fldArr.length; fldPos++)
    {
      fldStr=fldArr[fldPos]
      if (fldStr != "") {
        nodeObj = findObj(fldStr)
        if (nodeObj!=null) //may have been deleted
          if (nodeObj.setState) {
            nodeObj.forceOpeningOfAncestorFolders()
            clickOnNodeObj(nodeObj);
          }

      }
    }
  }
}

function storeAllNodesInClickCookie(treeNodeObj)
{
  var currentOpen
  var i = 0

  if (typeof treeNodeObj.setState != "undefined") //is folder
  {
    currentOpen = GetCookie("clickedFolder")
    if (currentOpen == null)
      currentOpen = ""

    if (treeNodeObj.getID() != foldersTree.getID())
      SetCookie("clickedFolder", currentOpen+treeNodeObj.getID()+cookieCutter)

    for (i=0; i < treeNodeObj.nChildren; i++)
        storeAllNodesInClickCookie(treeNodeObj.children[i])
  }
}

function CookieBranding(name) {
  if (typeof foldersTree.treeID != "undefined")
    return name+foldersTree.treeID //needed for multi-tree sites. make sure treeId does not contain cookieCutter
  else
    return name
}

function GetCookie(name)
{
  name = CookieBranding(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;
    var path = "/"; //allows the tree to remain open across pages with diff names & paths

  name = CookieBranding(name)

    document.cookie = name + "=" + escape (value) +
    ((expires == null) ? "" : ("; expires=" + expires.toGMTString())) +
    ((path == null) ? "" : ("; path=" + path)) +
    ((domain == null) ? "" : ("; domain=" + domain)) +
    ((secure == true) ? "; secure" : "");
}

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


//To customize the tree, overwrite these variables in the configuration file (demoFramesetNode.js, etc.)
var USETEXTLINKS = 0;
var STARTALLOPEN = 0;
var USEFRAMES = 1;
var USEICONS = 1;
var WRAPTEXT = 0;
var PERSERVESTATE = 0; //backward compatibility
var PRESERVESTATE = 0;
var ICONPATH = '';
var HIGHLIGHT = 0;
var HIGHLIGHT_COLOR = 'white';
var HIGHLIGHT_BG    = 'blue';
var BUILDALL = 0;
var GLOBALTARGET = "S"; // variable only applicable for addChildren uses


//Other variables
var lastClicked = null;
var lastClickedColor;
var lastClickedBgColor;
var indexOfEntries = new Array
var nEntries = -1000
var browserVersion = 0
var selectedFolder=0
var lastOpenedFolder=null
var doc = document
var supportsDeferral = false
var cookieCutter = '^' //You can change this if you need to use ^ in your xID or treeID values

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(otevreny)
{
  preLoadIcons();
  switch(navigator.family)
  {
    case 'ie4':
      browserVersion = 1 //Simply means IE > 3.x
      break;
    case 'opera':
      browserVersion = (navigator.version > 6 ? 1 : 0); //opera7 has a good DOM
      break;
    case 'nn4':
      browserVersion = 2 //NS4.x
      break;
    case 'gecko':
      browserVersion = 3 //NS6.x
      break;
    case 'safari':
      browserVersion = 1 //Safari Beta 3 seems to behave like IE in spite of being based on Konkeror
      break;
    default:
      browserVersion = 0 //other, possibly without DHTML
      break;
  }

  // backward compatibility
  if (PERSERVESTATE)
    PRESERVESTATE = 1;

  supportsDeferral = ((navigator.family=='ie4' && navigator.version >= 5 && navigator.OS != "mac") || browserVersion == 3);
  supportsDeferral = supportsDeferral & (!BUILDALL)
  if (!USEFRAMES && browserVersion == 2)
    browserVersion = 0;

  //If PRESERVESTATE is on, STARTALLOPEN can only be effective the first time the page
  //loads during the session. For subsequent (re)loads the PRESERVESTATE data stored
  //in cookies takes over the control of the initial expand/collapse
  if (PRESERVESTATE && GetCookie("clickedFolder") != null)
    STARTALLOPEN = 0

  //foldersTree (with the site's data) is created in an external .js (demoFramesetNode.js, for example)
  foldersTree.initialize(0, true, "")
  if (supportsDeferral && !STARTALLOPEN) {
      foldersTree.renderOb(null) //delay construction of nodes
  }

  else {
    renderAllTree(foldersTree, null);

    if (PRESERVESTATE && STARTALLOPEN)
      storeAllNodesInClickCookie(foldersTree)

    //To force the scrollable area to be big enough
    if (browserVersion == 2)
      doc.write("<layer top=" + indexOfEntries[nEntries-1].navObj.top + ">&nbsp;</layer>")

    if (browserVersion != 0 && !STARTALLOPEN)
      hideWholeTree(foldersTree, false, 0)
  }

  setInitialLayout()

    var nodeObj = findObj(otevreny)
    if (nodeObj!=null){
      nodeObj.forceOpeningOfAncestorFolders()
      highlightObjLink(nodeObj);
    }
}