//****************************************************************
// You are free to copy the "Folder-Tree" script as long as you
// keep this copyright notice:
// Original script found in: http://www.geocities.com/Paris/LeftBank/2178/
// Author: Marcelino Alves Martins (martins@hks.com) December '97.
// Variant found in JRun application
// Script customised and extended: Hugh & Eric Dixon, DeltaBravo Ltd. '01
// Script customised further: Eric Dixon, DeltaBravo Ltd. '02
//****************************************************************


//alert ("hello from menu.js");
// Definition of class Folder
// *****************************************************************

function Folder(folderDescription, hreference, target) //constructor
{
  //constant data
  this.desc = folderDescription
  //this.hreference = hreference
// wahid -----
  if (hreference) {
	this.hreference = surl + hreference;
  } else {
	this.hreference = hreference
  }
//  wahid-----
  
  
  
  if (target) {
	this.targettext = " TARGET='" + target + "'";
  } else {
	if (defTargetFrameName) {
		this.targettext = " TARGET='" + defTargetFrameName + "'";
	}
  }	
  this.id = -1
  this.navObj = 0
  this.iconImg = 0
  this.nodeImg = 0
  this.isLastNode = 0
  this.hierLevel = 0
  this.parent = 0
  this.keepOpen = false

  //dynamic data
  this.isOpen = true
  this.iconSrc = linkimagebaseurl + folderDescription + ".gif"
  //this.iconOverSrc = "'" + linkimagebaseurl + folderDescription + defOverExtension + ".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)
  {
    for (i=0; i<folder.nChildren; i++)
      folder.children[i].display()
  }
  else
  {
    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 == "hidden")
      return
    this.navObj.visibility = "hidden"
  }

  this.setState(0)
}

function initializeFolder(level, lastNode, leftSide)
{
  //preloadArray[preloadArray.length] = this.iconOverSrc;

var j=0
var i=0
var numberOfFolders
var numberOfDocs
var nc

  this.hierLevel = level

  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
    { // + auxEv after leftSide for node behaviour on folders
      this.renderOb(leftSide + "<img name='nodeIcon" + this.id + "' src='" + linkimagebaseurl + "shim.gif' width='" + shimWidth + "' height='" + shimHeight + "' border=0>")
      leftSide = leftSide // + "<img src='" + linkimagebaseurl + "shim.gif' width='" + shimWidth + "' height='" + shimHeight + "'>"
      this.isLastNode = 1
    }
    else
    {
      this.renderOb(leftSide + "<img name='nodeIcon" + this.id + "' src='" + linkimagebaseurl + "shim.gif' width='" + shimWidth + "' height='" + shimHeight + "' border=0>")
      leftSide = leftSide //+ "<img src='" + linkimagebaseurl + "shim.gif' width='" + shimWidth + "' height='" + shimHeight + "'>"
      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=hidden>")
  }

  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><nobr>")
  doc.write(leftSide)
  this.outputLink()
  doc.write("<img id='" + this.id + "' name='" + this.desc + "' ")
  doc.write("src='" + this.iconSrc + "' border=0></a>")
  doc.write("</nobr></td>")
  doc.write("</tr>")
  doc.write("</table>\n")

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

  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 + "'" + this.targettext + " ")
      doc.write("onClick='javascript:clickOnFolder("+this.id+")'")
  }
  else
  {
  doc.write("<a href='javascript:clickOnFolder("+this.id+")'")
  } 
  doc.write(">");   
  //doc.write("onMouseOver=localMouseOverFunction('" + this.desc + "') onMouseOut=localMouseOutFunction()>")
}

function addChild(childNode)
{
  this.children[this.nChildren] = childNode
  this.nChildren++
  childNode.parent = this
  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, target) // Constructor
{
  // constant data
  this.desc = itemDescription
  this.link = itemLink
  if (target) {
	this.targettext = target;
  } else {
	if (defTargetFrameName) {
		this.targettext = defTargetFrameName;
	}
  }	
  this.id = -1 //initialized in initalize()
  this.navObj = 0 //initialized in render()
  this.iconImg = 0 //initialized in render()
  //this.iconSrc = linkimagebaseurl + itemDescription + ".gif"
  //this.iconOverSrc = "'" + linkimagebaseurl + itemDescription + defOverExtension + ".gif'"
  this.parent = 0

  // 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 == "hidden")
      return
    this.navObj.visibility = "hidden"
  }
}

function initializeItem(level, lastNode, leftSide)
{
  //preloadArray[preloadArray.length] = this.iconOverSrc
  this.createIndex()

  if (level>0)
    {
      this.renderOb(leftSide)
      leftSide = leftSide //+ "<img src='" + linkimagebaseurl + "shim.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=hidden>")

  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 valign=top height=14><td><nobr>")
  doc.write(leftSide)
  doc.write("<a href=" + this.link + " target=" + this.targettext + ">")
  //doc.write("<img id='itemIcon"+this.id+"' ")
  //doc.write("name='" + this.desc + "' ")
  //doc.write("src='"+this.iconSrc+"' border=0>")
  doc.write(this.desc);
  doc.write("</a>")
  doc.write("</nobr></td></tr>")
  doc.write("</table>\n")

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

  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)
{
  MM_showHideLayers('help','','hide');
  z = 0;
  var clicked = indexOfEntries[folderId]

  //if (!clicked.isOpen)
    clickOnNode(folderId)

  return

  if (clicked.isSelected)
    return
}

function clickOnNode(folderId)
{
  var clickedFolder = 0
  var state = 0
// need to close any other folders at the same hierarchical level (if open and not set to keepOpen)
  clickedFolder = indexOfEntries[folderId]
// derive parent object (with capital A to not have name-clash)
  pArent = clickedFolder.parent
// alert("Parent hierarchical level = "+ pArent.hierLevel);
  nSiblings = 0
  nSiblings = pArent.nChildren
// alert("Count of siblings = "+nSiblings);
  for (a = 0; a < nSiblings; a++) {
	if (pArent.children[a].isOpen && pArent.children[a] != clickedFolder && pArent.children[a].keepOpen != true) pArent.children[a].setState(false)
  }
  state = clickedFolder.isOpen
  clickedFolder.setState(!state) //open<->close
}

function initializeDocument(tree)
{
  if (doc.all)
    browserVersion = 1 //IE4
  else
    if (doc.layers)
      browserVersion = 2 //NS4
    else
      browserVersion = 0 //other
  tree.initialize(0, 1, "")
//  for (i=0; i<preloadArray.length; i++) {  
//	MM_preloadImages(preloadArray[i])
//	}
  tree.display()

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

    // close the whole tree
		tree.setState(false);
//    clickOnNode(0) - doesn't work with more than one tree object around - root object nodeId != 0
    // open the root folder
//    clickOnNode(0) - as above.
		tree.setState(true);
	for (i=0; i < nPreOpenFolders; i++) {
		PreOpenFolders[i].setState(true);	}
  }
}

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

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

function gLnk(description, linkData, target, remoteMouseOver)
{
  //mouseOver = " onMouseOver="
  //mouseOut = " onMouseOut="
  fullLink = "'" + linkData + "'"
  //localMouseOverScript = "localMouseOverFunction('" + description + "');"
  //localMouseOutScript = "localMouseOutFunction();" 
  //remoteMouseOverScript = ""
  //remoteMouseOutScript = ""
  if (target == "") {target = defTargetFrameName}
  //if (remoteMouseOver == "true") {
    //remoteMouseOverScript = "remoteMouseOverFunction('" + target + "','" + description + "')";
	//remoteMouseOutScript = "remoteMouseOutFunction('" + target + "','" + description + "')";
  //}
  //mouseOverScripts = mouseOver.concat(localMouseOverScript,remoteMouseOverScript)
  //mouseOutScripts = mouseOut.concat(localMouseOutScript,remoteMouseOutScript)
  //fullLink = fullLink.concat(mouseOverScripts,mouseOutScripts)
  linkItem = new Item(description, fullLink, target)
  return linkItem
}

function insFld(parentFolder, childFolder, openstate, stayopen)
{
  chFolder = parentFolder.addChild(childFolder)
  if (openstate) {
	PreOpenFolders[nPreOpenFolders] = chFolder;
	nPreOpenFolders++;
  }
  if (stayopen) {
	chFolder.keepOpen = true;
  }
  return chFolder
}

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

// Global variables
// ****************
// Should be overridden in calling html file if necessary.
indexOfEntries = new Array
nEntries = 0
doc = document
browserVersion = 0
selectedFolder=0
PreOpenFolders = new Array
nPreOpenFolders = 0
preloadArray = new Array
preloadArray[0] = "'/promostores/dp/images/shim.gif'"