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

 
  /* dynamic data  */
  this.isOpen = true 
  this.iconSrc = "images/ftv2folderopen_iv01.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) 
	    if (folder.nChildren == 0) {
        folder.nodeImg.src = "images/ftv2lastnode_iv01.gif"
		folder.iconImg.src = "images/ftv2folderopen_iv01.gif" /*imatge últim missatge*/
	    }
		else {
        folder.nodeImg.src = "images/ftv2mlastnode_iv01.gif"  /*imatge últim missatge*/
		folder.iconImg.src = "images/ftv2folderopen_iv01.gif" 
		}
      else {
	    if (folder.nChildren == 0)
		folder.nodeImg.src = "images/ftv2node_iv01.gif" 
		else
	    folder.nodeImg.src = "images/ftv2mnode_iv01.gif" 
		folder.iconImg.src = "images/ftv2folderopen_iv01.gif" 
		}
    for (i=0; i<folder.nChildren; i++) 
      folder.children[i].display() 
  } 
  else 
  { 
    if (folder.nodeImg) 
      if (folder.isLastNode) 
	  	if (folder.nChildren == 0) {
        folder.nodeImg.src = "images/ftv2lastnode_iv01.gif" /*imatge últim missatge*/
		folder.iconImg.src = "images/ftv2folderclosednodo_iv01.gif"
		}
		else {
		folder.nodeImg.src = "images/ftv2plastnode_iv01.gif" /*imatge últim missatge*/
		folder.iconImg.src = "images/ftv2folderclosednodo_iv01.gif"		
		}
      else 
	  	if (folder.nChildren == 0) {
		folder.nodeImg.src = "images/ftv2node_iv01.gif"
		folder.iconImg.src = "images/ftv2folderclosednodo_iv01.gif"
		}
		else {
		folder.nodeImg.src = "images/ftv2pnode_iv01.gif"
		folder.iconImg.src = "images/ftv2folderclosednodo_iv01.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) 
    if (nc == 0)
	auxEv = ""
	else {
    auxEv = "<a href='javascript:clickOnNode("+this.id+")' class='blau'>" 
	}
  else 
  	if (folder.isLastNode)
	auxEv = ""
	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_iv01.gif' width=16 height=22 border=0></a>") 
      leftSide = leftSide + "<img src='images/ftv2blank_iv01.gif' width=16 height=22>"  
      this.isLastNode = 1 
    } 
    else 
    { 
      this.renderOb(leftSide + auxEv + "<img name='nodeIcon" + this.id + "' src='images/ftv2mnode_iv01.gif' width=16 height=22 border=0></a>") 
      leftSide = leftSide + "<img src='images/ftv2vertline_iv01.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 valign=top>") 
  doc.write(leftSide) 
  /* this.outputLink() */
  doc.write("<img name='folderIcon" + this.id + "' src='" + this.iconSrc+"' border=0>") 
  /* doc.write("</a>") */
  doc.write("</td><td class=comentario valign=middle nowrap>") 
  if (USETEXTLINKS) 
  { 
  	doc.write(this.fecha+" ")
    this.outputLink() 
    doc.write(this.desc+"</a>") 
  } 
  else 
    doc.write(this.fecha+" "+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='continguta'") 
    if (browserVersion > 0) 
      /* doc.write("onClick='javascript:clickOnFolder("+this.id+")'") */	
	  /* Això fa que s'obri el folder */
    doc.write(" class='blau'>") 
  } 
  else 
    doc.write("<a>") 
/*  doc.write("<a href='javascript:clickOnFolder("+this.id+")' class='blau'>")   */
} 
 
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/ftv2doc_iv01.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_iv01.gif' width=16 height=22>") 
      leftSide = leftSide + "<img src='images/ftv2blank_iv01.gif' width=16 height=22>"  
    } 
    else 
    { 
      this.renderOb(leftSide + "<img src='images/ftv2node_iv01.gif' width=16 height=22>") 
      leftSide = leftSide + "<img src='images/ftv2vertline_iv01.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=1 cellspacing=0 cellpadding=0>") 
  doc.write("<tr><td class='comentario'>") 
  doc.write(leftSide) 
  doc.write("<a href=" + this.link + " class='blau' target='contingut'>") 
  doc.write("<img id='itemIcon"+this.id+"' ") 
  doc.write("src='"+this.iconSrc+"' border=0>") 
  doc.write("</a>") 
  doc.write("</td><td valign=middle class='comentario' nowrap>") 
  if (USETEXTLINKS) 
    doc.write(this.fecha+" <a href=" + this.link + "class='blau' target='contingut'>" + 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+">&nbsp;</layer>") 
 
    /* close the whole tree */
    clickOnNode(0) 
    /* open the root folder */
    clickOnNode(0) 
  } 
} 
 
/* Auxiliary Functions for Folder-Treee backward compatibility */
/* ********************************************************* */
 
function gFld(data, description, hreference,tipo) 
{ 
  folder = new Folder(data, description, hreference,tipo) 
  return folder 
} 
 
function gLnk(target, data, description, linkData) 
{ 
  fullLink = "" 
 
  if (target==0) 
  { 
    fullLink = "'"+linkData+"' target='contingut'" 
  } 
  else 
  { 
    if (target==1) 
       fullLink = linkData + " target='contingut'" 
    else 
       fullLink = linkData + " target='contingut'" 
  } 
 
  linkItem = new Item(data, description, fullLink)   
  return linkItem 
} 
 
function insFld(parentFolder, childFolder) 
{ 
  return parentFolder.addChild(childFolder) 
} 
 
function insDoc(parentFolder, document) 
{ 
  parentFolder.addChild(document) 
} 



/* Global variables */
/* **************** */
 
USETEXTLINKS = 0 
indexOfEntries = new Array 
nEntries = 0 
doc = document 
browserVersion = 0 
selectedFolder = 0