//**************************************************************** 
// 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.geocities.com/marcelino_martins/foldertree.html
//
// Author: Marcelino Alves Martins (http://www.mmartins.com) 
// 1997--2001. 
//**************************************************************** 
 
// Log of changes: 
//       10 Aug 01 - Support for Netscape 6
//
//       17 Feb 98 - Fix initialization flashing problem with Netscape
//       
//       27 Jan 98 - Root folder starts open; support for USETEXTLINKS; 
//                   make the ftien4 a js file 
 
 
// Definition of class Folder 
// ***************************************************************** 
 
function Folder(folderDescription, href, topNode, level) //constructor 
{ 
  //constant data 
  this.desc = folderDescription 
  this.hreference = href
  this.id = -1   
  this.navObj = 0  
  this.iconImg = 0  
  this.nodeImg = 0  
  this.isLastNode = 0
  this.topNode = topNode
  this.level = level

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

 
  //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.outputLink = outputFolderLink 
  this.blockStart = blockStart
  this.blockEnd = blockEnd
} 




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+")' onFocus='NoFocus(this)'>" 
  else 
    auxEv = "<a>" 
 
  if (level>0) 
    if (lastNode) //the last child in the children array 
    { 
      this.renderOb(leftSide + auxEv + "<img name='nodeIcon" + this.id + "' id='nodeIcon" + this.id + "' src='/images/minus.gif' border=0></a>") 
      leftSide = leftSide + "<img src='/images/tom.gif' width=8 height=1>"  
      this.isLastNode = 1 
    } 
    else 
    { 
      this.renderOb(leftSide + auxEv + "<img name='nodeIcon" + this.id + "' id='nodeIcon" + this.id + "' src='/images/minus.gif' border=0></a>") 
      leftSide = leftSide + "<img src='/images/tom.gif' width=2 height=1>" 
      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 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/minus.gif" 
      else 
	    folder.nodeImg.src = "/images/minus.gif" 
    //folder.iconImg.src = "/images/black_icon.gif"
    //####################################################################
	//changeLinkColor("black", folder.id)
    //####################################################################
    for (i=0; i<folder.nChildren; i++) 
      folder.children[i].mostra() 
  } 
  else 
  { 
    if (folder.nodeImg) 
      if (folder.isLastNode) 
        folder.nodeImg.src = "/images/plus.gif" 
      else 
	    folder.nodeImg.src = "/images/plus.gif" 
    folder.iconImg.src = "/images/gray_icon.gif"
    //####################################################################
	changeLinkColor("#999999", folder.id)
    //####################################################################
    for (i=0; i<folder.nChildren; i++) 
      folder.children[i].esconde() 
  }  
} 
//####################################################################
function changeLinkColor(color, folderId) {
	if (browserVersion == 1) {
		tt = eval("document.all.link"+folderId+".style")
		tt.color = color
	}
}

function openTree(arrNodes) {
	//alert(activeFolder.id)
	activeFolder.iconImg.src = "/images/gray_icon.gif"
	for (var i = 0; i <= arrNodes.length - 2; i++) {
		folder = eval("aux"+arrNodes[i])
		if (folder.children && !folder.isOpen) clickOnNode(folder.id)
		folder.iconImg.src = "/images/gray_icon.gif"
		changeLinkColor("#999999", folder.id)
	}
	//if (folder.children) folder = eval("aux"+arrNodes[arrNodes.length-1])
	folder = eval("aux"+arrNodes[arrNodes.length-1])
	changeLinkColor("#999999", activeFolder.id)
	
	if (!folder.isOpen) clickOnNode(folder.id)
	else activeFolder = folder
	if (activeFolder) {
		changeLinkColor("black", activeFolder.id)
		activeFolder.iconImg.src = "/images/black_icon.gif"
	}
	//alert(activeFolder)
	
}
//####################################################################
function escondeFolder() 
{ 
  this.escondeBlock()
   
  this.setState(0) 
} 
 
function drawFolder(leftSide) 
{ 
  var idParam = "id='folder" + this.id + "'"
  
  if (browserVersion == 2) { 
    if (!doc.yPos) 
      doc.yPos=20 
  } 

  this.blockStart("folder")

  doc.write("<tr><td>") 
  doc.write(leftSide) 
  this.outputLink() 
  doc.write("<img id='folderIcon" + this.id + "' name='folderIcon" + this.id + "' src='" + this.iconSrc+"' border=0></a>") 
  doc.write("</td><td valign=middle nowrap>") 
  if (USETEXTLINKS) 
  { 
    this.outputLink() 
    if (browserVersion == 1 || browserVersion == 3)
		doc.write("<span style=\"text-decoration: none; font-size: 12px; line-height: 17px;\" id='link"+ this.id +"'>" + this.desc + "</span></a><br />") 
	else
		doc.write(this.desc + "</a>") 
  } 
  else 
    doc.write(this.desc) 
  doc.write("</td>")  

  this.blockEnd()
 
  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 
  } else if (browserVersion == 3) { 
    this.navObj = doc.getElementById("folder"+this.id)
    this.iconImg = doc.getElementById("folderIcon"+this.id) 
    this.nodeImg = doc.getElementById("nodeIcon"+this.id)
  } 
} 
 
function outputFolderLink() 
{ 

  var clas = ""
  var trgt = ""
  var onColor = "black"
  var offColor = "#999999"
  if (this.level == 1) clas = " class=menuBold"
  else clas = " class=menu"
  if (this == foldersTree)
	//alert("HH")
	trgt = "_parent"
  else
	trgt = "_parent"
  
  if (this.hreference) 
  { 
    //doc.write("<a href='" + this.hreference + "&tNode=" + this.topNode + "'" + clas)
    doc.write("<a href='" + this.hreference + "' onClick='clickOnNode("+this.id+")' onFocus='NoFocus(this)'" + clas + " target="+trgt)  
    //if (browserVersion > 0) 
      //doc.write(" onClick='javascript:clickOnNode("+this.id+")'")
      //################################################################################
      //doc.write(" onMouseover='changeLinkColor(\"black\", "+this.id+")' onMouseout='changeLinkColor(\"#999999\", "+this.id+")'")
      //################################################################################
    doc.write(">") 
  } 
  else 
    //doc.write("<a>") 
	doc.write("<a href='javascript:clickOnNode("+this.id+")' onFocus='NoFocus(this)'" + clas + ">")   
} 
 
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, topNode, level) // 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/gray_icon.gif"
  this.topNode = topNode
  this.level = level
 
  // methods 
  this.initialize = initializeItem 
  this.createIndex = createEntryIndex 
  this.esconde = escondeBlock
  this.mostra = mostra 
  this.renderOb = drawItem 
  this.totalHeight = totalHeight 
  this.blockStart = blockStart
  this.blockEnd = blockEnd
} 
 
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/tom.gif' width=8 height=11>") 
      leftSide = leftSide + "<img src='/images/tom.gif' width=8 height=2>"  
    } 
    else 
    { 
      this.renderOb(leftSide + "<img src='/images/tom.gif' width=8 height=1>") 
      //leftSide = leftSide + "<img src='/images/ftv2vertline.gif' width=16 height=22>" 
    } 
  else 
    this.renderOb("")   
} 
 
function drawItem(leftSide) 
{
  var alreadyDone = ""
  var clas = ""
  var str = this.link;
  var endStr = str.length - 21;
  if (this.level == 1) clas = " class=menuBold"
  else clas = " class=menu"
  
  // change nav colour if needed
  if(("http://new.skywire.com.au/" + str.substr(1, endStr)) == location.href)
	clas = " class=menuBold"

  if(("http://new.skywire.com.au/admin/" + str.substr(1, endStr)) == location.href)
	clas = " class=menuBold"


  this.blockStart("item")

  doc.write("<tr><td>") 
  doc.write(leftSide) 
  //doc.write("<a href='" + this.link + "&tNode=" + this.topNode + "'>")
  doc.write("<a href=" + this.link + " onFocus='NoFocus(this)'>")  
  doc.write("<img id='itemIcon"+this.id+"' ") 
  doc.write("src='"+this.iconSrc+"' border=0>") 
  doc.write("</a>") 
  doc.write("</td><td valign=middle style=\"text-align: left;\">") 
  if (USETEXTLINKS) { 
    //doc.write("<a href='" + this.link + "&tNode=" + this.topNode + "' " + clas + ">" + this.desc + "</a>") 
    //################################################################################
    //doc.write("<a href='" + this.link + "&tNode=" + this.topNode + "' ")
    doc.write("<a href=" + this.link + " ")
    //doc.write(" onMouseover='changeLinkColor(\"black\", "+this.id+")' onMouseout='changeLinkColor(\"#999999\", "+this.id+")' ")
    if (browserVersion == 1 || browserVersion == 3)
		doc.write(clas + " onFocus='NoFocus(this)'><span style=\"text-decoration: none;\" id='link"+ this.id +"'>" + this.desc + "</span></a><br />")
	else
		doc.write(clas + " onFocus='NoFocus(this)'>" + this.desc + "</a>")
    //################################################################################
  }
  else 
    doc.write(this.desc) 

  this.blockEnd()
 
  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 
  } else if (browserVersion == 3) { 
    this.navObj = doc.getElementById("item"+this.id)
    this.iconImg = doc.getElementById("itemIcon"+this.id)
  } 
} 
 
 
// Methods common to both objects (pseudo-inheritance) 
// ******************************************************** 
 
function mostra() 
{ 
  if (browserVersion == 1 || browserVersion == 3) { 
     var str = new String(doc.links[0])
     //if (str.slice(16,20) != "ins.")
	  //  return
  }

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

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 blockStart(idprefix) {
  var idParam = "id='" + idprefix + this.id + "'"

  if (browserVersion == 2) 
    doc.write("<layer "+ idParam + " top=" + doc.yPos + " left=" + getMenuPos() + " visibility=show>") 
     
  if (browserVersion == 3) //N6 has bug on display property with tables
    doc.write("<div " + idParam + " style='display:block; position:block;'>")
     
  doc.write("<table border=0 cellspacing=0 cellpadding=0 ") 

  if (browserVersion == 1) 
    doc.write(idParam + " style='display:block; position:block; '>") 
  else
    doc.write(">") 
}

function blockEnd() {
  doc.write("</table>") 
   
  if (browserVersion == 2) 
    doc.write("</layer>") 
  if (browserVersion == 3) 
    doc.write("</div>") 
}
 
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 
  
  if (activeFolder) {
	activeFolder.iconImg.src = "/images/gray_icon.gif"
	changeLinkColor("#999999", activeFolder.id)
  }
  
  clickedFolder = indexOfEntries[folderId] 
  state = clickedFolder.isOpen
  activeFolder = clickedFolder
  
  if (activeFolder) {
	activeFolder.iconImg.src = "/images/black_icon.gif"
	changeLinkColor("black", activeFolder.id)
  }
  
  //****************************************
  //alert('clickedFolder.level: '+clickedFolder.level+ 'clickedFolder.isOpen: '+clickedFolder.isOpen)
//  if (clickedFolder.level == 1 && clickedFolder.isOpen != true)
//	closeNode(activeTopFolder, folderId)
  //****************************************
  
  if (clickedFolder.setState) clickedFolder.setState(!state) //open<->close  
} 

//###################################
// Close prev node
function closeNode(activeTopF, folderId) {
  var folderToClose = 0
  var clickedFolder = 0 
  var state = 0
  
  activeFolder = indexOfEntries[folderId]//folderId
  
  if (activeTopFolder == 0) {
	activeTopFolder = folderId
	return
  }
  
  clickedFolder = indexOfEntries[folderId]

  activeTopFolder = folderId
  
  folderToClose = indexOfEntries[activeTopF]
  if (folderToClose.isOpen != true)
	return
	
  state = folderToClose.isOpen 
  
  folderToClose.setState(!state) //open<->close  
}
//###################################

// Auxiliary Functions for Folder-Tree backward compatibility
// ***********************************************************
 
function gFld(description, hreference, topNode, level) 
{ 
  folder = new Folder(description, hreference, topNode, level) 
  return folder 
} 
 
function gLnk(target, description, linkData, topNode, level) 
{ 
  fullLink = "" 
 
  if (target==0) 
  { 
    fullLink =  "'" + linkData + "' + target=\"_parent\"" 
  } 
  else 
  { 
    if (target==1) 
       fullLink = "'http://"+linkData+"'" 
    else 
       fullLink = "'http://"+linkData+"'" 
  } 
 
  linkItem = new Item(description, fullLink, topNode, level)   
  return linkItem 
} 
 
function insFld(parentFolder, childFolder) 
{ 
  this.folder = parentFolder
  return parentFolder.addChild(childFolder) 
} 
 
function insDoc(parentFolder, document) 
{ 
  return parentFolder.addChild(document)
} 


//###########################################
// fix for the issue with layerPosition in NS
//*******************************************
function getMenuPos() {
	return document.menuCell.pageX + 5
}
//###########################################


// Global variables 
// **************** 
 
USETEXTLINKS = 1 
STARTALLOPEN = 0
indexOfEntries = new Array 
nEntries = 0 
doc = document 
browserVersion = 0 
selectedFolder = 0
var activeFolder = 0
var activeTopFolder = 0


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

// This function uses an object (navigator) defined in
// ua.js, imported in the main html page (left frame).
function initializeDocument(folder) 
{ 
	if(!folder)
		folder = foldersTree;

  if (!parent.ATPrev) {
	/* switch(navigator.family)
	 {
	   case 'ie4':
	     browserVersion = 1   
	     break;
	   case 'nn4':
	     browserVersion = 2 
	     break;
	   case 'gecko':
	     browserVersion = 3 
	     break;
		default:
		  browserVersion = 0 
		  break;
	 }
	 */
	 if (is.ie4up)
		browserVersion = 1 //IE4
	 else if (is.nav4up && !is.nav6)
		browserVersion = 2 //NS4
	 else if (is.nav6up)
		browserVersion = 3 //NS6
	 else
		browserVersion = 0 //other

	 //foldersTree (with the site's data) is created in an external .js 
	 folder.initialize(0, 1, "") 
	 
	 if (browserVersion == 2) 
	   doc.write("<layer top="+indexOfEntries[nEntries-1].navObj.top+">&nbsp;</layer>") 

	 //The tree starts in full display 
	 if (!STARTALLOPEN) {
		  if (browserVersion > 0) {
			// close the whole tree 
			clickOnNode(0) 
			// open the root folder 
			clickOnNode(0) 
		  }
	 }
	 if (browserVersion == 0) 
		doc.write("<table border=0><tr><td><br><br><font size=-1>This tree only expands or contracts with DHTML capable browsers</font></td></tr></table>")
	}
}