// JavaScript Document
// Node object
function Node(id, pid, name, url, title, target, isopen, img)
{
 this.id   = id;
 this.pid  = pid;
 this.name  = name;
 this.url  = url;
 this.title = title;
 this.target = target;
 this.img  = img;
 
 this._io  = isopen || false;
 this._ls  = false;
 this._hc  = false;
 this._is  = false;
}
 

// Tree object
function dTree(objName)
{
 
// Variables
// ----------------------------------------------------------------------------
 
 this.arrNodes   = [];
 this.arrRecursed = [];
 this.arrIcons   = [];
 this.rootNode   = -1;
 this.strOutput  = '';
 this.selectedNode = null;
 
 this.instanceName = objName;
 this.imgFolder  = 'JScripts/img/';
 this.target    = null;
 this.hasLines   = true;
 this.clickSelect = true;
 this.folderLinks = true;
 this.useCookies  = true;
 

// Functions
// ----------------------------------------------------------------------------
 

 // Adds a new node to the node array
 this.add = function(id, pid, name, url, title, target, isopen, img)
 {
  this.arrNodes[this.arrNodes.length] = new Node(id, pid, name, url, title, target, isopen, img);
 }
 
 // Outputs the tree to the page
 this.draw = function()
 {
  if (document.getElementById)
  {
   this.preloadIcons();
   if (this.useCookies) this.selectedNode = this.getSelected();
   this.addNode(this.rootNode);
 
   document.writeln(this.strOutput);
  }
  else
  {
   document.writeln('Browser not supported.');
  }
 }
 
 this.openAll = function()
 {
  this.oAll(true);
 }
 
 this.closeAll = function()
 {
  this.oAll(false);
 }
 

// Private
// ----------------------------------------------------------------------------
 
 // Prealoads images that are used in the tree
 this.preloadIcons = function()
 {
  if (this.hasLines)
  {
   this.arrIcons[0] = new Image();
   this.arrIcons[0].src = this.imgFolder + 'plus.gif';
   this.arrIcons[1] = new Image();
   this.arrIcons[1].src = this.imgFolder + 'plusbottom.gif';
   this.arrIcons[2] = new Image();
   this.arrIcons[2].src = this.imgFolder + 'minus.gif';
   this.arrIcons[3] = new Image();
   this.arrIcons[3].src = this.imgFolder + 'minusbottom.gif';
  }
  else
  {
   this.arrIcons[0] = new Image();
   this.arrIcons[0].src = this.imgFolder + 'nolines_plus.gif';
   this.arrIcons[1] = new Image();
   this.arrIcons[1].src = this.imgFolder + 'nolines_plus.gif';
   this.arrIcons[2] = new Image();
   this.arrIcons[2].src = this.imgFolder + 'nolines_minus.gif';
   this.arrIcons[3] = new Image();
   this.arrIcons[3].src = this.imgFolder + 'nolines_minus.gif';
  }
  this.arrIcons[4] = new Image();
  this.arrIcons[4].src = this.imgFolder + 'folder.gif';
  this.arrIcons[5] = new Image();
  this.arrIcons[5].src = this.imgFolder + 'folderopen.gif';
 }
 
 // Recursive function that creates the tree structure
 this.addNode = function(pNode)
 {
  for (var n=0; n<this.arrNodes.length; n++)
  {
   if (this.arrNodes[n].pid == pNode)
   {
    var cn = this.arrNodes[n];
    cn._hc = this.hasChildren(cn);
    cn._ls = (this.hasLines) ? this.lastSibling(cn) : false;
    if (cn._hc && !cn._io && this.useCookies) cn._io = this.isOpen(cn.id);
 
    if (this.clickSelect && cn.id == this.selectedNode)
    {
      cn._is = true;
      this.selectedNode = n;
    }
 
    if (!this.folderLinks && cn._hc) cn.url = null;
 

    // If the current node is not the root
    if (this.rootNode != cn.pid)
    {
     // Write out line & empty icons
     for (r=0; r<this.arrRecursed.length; r++)
      this.strOutput += '<img src="' + this.imgFolder + ( (this.arrRecursed[r] == 1 && this.hasLines) ? 'line' : 'empty' ) + '.gif" alt="" />';
 
     // Line & empty icons
     (cn._ls) ? this.arrRecursed.push(0) : this.arrRecursed.push(1);
 
     // Write out join icons
     if (cn._hc)
     {
      this.strOutput += '<a href="javascript: ' + this.instanceName + '.o(' + n + ');">'
       + '<img id="j' + this.instanceName + n + '" src="' + this.imgFolder;
      if (!this.hasLines)
       this.strOutput += 'nolines_';
 
      this.strOutput += ( (cn._io) ? ((cn._ls && this.hasLines) ? 'minusbottom' : 'minus') : ((cn._ls && this.hasLines) ? 'plusbottom' : 'plus' ) )
       + '.gif" alt="" /></a>';
     }
     else
      this.strOutput += '<img src="' + this.imgFolder + ( (this.hasLines) ? ((cn._ls) ? 'joinbottom' : 'join' ) : 'empty') + '.gif" alt="" />';
    }
 
    // Start the node link
    if (cn.url)
    {
     this.strOutput += '<a href="' + cn.url + '"';
     if (cn.title) this.strOutput += ' title="' + cn.title + '"';
     if (cn.target) this.strOutput += ' target="' + cn.target + '"';
     if (this.target && !cn.target) this.strOutput += ' target="' + this.target + '"';
 
     // If hightlight link is on
     if (this.clickSelect)
     {
      if (cn._hc)
      {
       if (this.folderLinks)
        this.strOutput += ' onclick="javascript: ' + this.instanceName + '.s(' + n + ');"';
      }
      else
      {
       this.strOutput += ' onclick="javascript: ' + this.instanceName + '.s(' + n + ');"';
      }
     }
 
     this.strOutput += '>';
    }
    if ((!this.folderLinks || !cn.url) && cn._hc && cn.pid != this.rootNode)
    {
     this.strOutput += '<a href="javascript: ' + this.instanceName + '.o(' + n + ');"';
    }
 
    // Write out folder & page icons
    this.strOutput += '<img id="i' + this.instanceName + n + '" src="' + this.imgFolder;
    this.strOutput += (cn.img) ? cn.img : ((this.rootNode == cn.pid) ? 'base' : (cn._hc) ? ((cn._io) ? 'folderopen' : 'folder') : 'page') + '.gif';
    this.strOutput += '" alt="" />';
 
    // Write out span
    this.strOutput += '<span id="s' + this.instanceName + n + '" class="' + ((this.clickSelect) ? ((cn._is ? 'nodeSel' : 'node')) : 'node') + '">';
 

    // Write out node name
    this.strOutput += cn.name;
 
     this.strOutput += '</span>';
 
    // Close the link
    if (cn.url || (!this.folderLinks && cn._hc)) this.strOutput += '</a>';
 
    this.strOutput += '<br />\n';
 
    // If node has children write out divs and go deeper
    if (cn._hc)
    {
     this.strOutput += '<div id="d' + this.instanceName + n + '" style="display:'
     + ((this.rootNode == cn.pid || cn._io) ? 'block' : 'none')
     + ';">\n';
     this.addNode(cn.id);
     this.strOutput += '</div>\n';
    }
    this.arrRecursed.pop();
   }
  }
 }
 
 // Checks if a node has any children
 this.hasChildren = function(node)
 {
  for (n=0; n<this.arrNodes.length; n++)
   if (this.arrNodes[n].pid == node.id) return true;
  return false;
 }
 
 // Checks if a node is the last sibling
 this.lastSibling = function(node)
 {
  var lastId;
  for (n=0; n< this.arrNodes.length; n++)
   if (this.arrNodes[n].pid == node.pid) lastId = this.arrNodes[n].id;
  if (lastId==node.id) return true;
  return false;
 }
 
 // Checks if a node id is in a cookie
 this.isOpen = function(id)
 {
  openNodes = this.getCookie('co' + this.instanceName).split('.');
  for (n=0;n<openNodes.length;n++)
   if (openNodes[n] == id) return true;
  return false;
 }
 
 // Checks if the node is selected
 this.isSelected = function(id)
 {
  selectedNode = this.getCookie('cs' + this.instanceName);
  if (selectedNode)
  {
   if (id==selectedNode)
   {
    this.selectedNode = id;
    return true
   }
  }
  return false;
 }
 
 // Returns the selected node
 this.getSelected = function()
 {
  selectedNode = this.getCookie('cs' + this.instanceName);
  if (selectedNode) return selectedNode;
  return null;
 }
 
 // Highlights the selected node
 this.s = function(id)
 {
  cn = this.arrNodes[id];
  if (this.selectedNode != id)
  {
   if (this.selectedNode)
   {
    eOldSpan = document.getElementById("s" + this.instanceName + this.selectedNode);
    eOldSpan.className = "node";
   }
 
   eNewSpan = document.getElementById("s" + this.instanceName + id);
   eNewSpan.className = "nodeSel";
 
   this.selectedNode = id;
   if (this.useCookies) this.setCookie('cs' + this.instanceName, cn.id);
  }
 }
 
 // Toggle Open or close
 this.o = function(id)
 {
  cn = this.arrNodes[id];
 
  (cn._io) ? this.nodeClose(id,cn._ls) : this.nodeOpen(id,cn._ls);
  cn._io = !cn._io;
 
  if (this.useCookies) this.updateCookie();
 }
 
 // Open or close all nodes
 this.oAll = function(open)
 {
  for (n=0;n<this.arrNodes.length;n++)
  {
   if (this.arrNodes[n]._hc && this.arrNodes[n].pid != this.rootNode)
   {
    if (open)
    {
     this.nodeOpen(n, this.arrNodes[n]._ls);
     this.arrNodes[n]._io = true;
    }
    else
    {
     this.nodeClose(n, this.arrNodes[n]._ls);
     this.arrNodes[n]._io = false;
    }
   }
  }
  if (this.useCookies) this.updateCookie();
 }
 
 // Open a node
 this.nodeOpen = function(id, bottom)
 {
  eDiv = document.getElementById('d' + this.instanceName + id);
  eJoin = document.getElementById('j' + this.instanceName + id);
  eIcon = document.getElementById('i' + this.instanceName + id);
  eJoin.src = (bottom) ?  this.arrIcons[3].src : this.arrIcons[2].src;
  if (!this.arrNodes[id].img) eIcon.src = this.arrIcons[5].src;
  eDiv.style.display = 'block';
 }
 
 // Close a node
 this.nodeClose = function(id, bottom)
 {
  eDiv = document.getElementById('d' + this.instanceName + id);
  eJoin = document.getElementById('j' + this.instanceName + id);
  eIcon = document.getElementById('i' + this.instanceName + id);
  eJoin.src = (bottom) ? this.arrIcons[1].src : this.arrIcons[0].src;
  if (!this.arrNodes[id].img) eIcon.src = this.arrIcons[4].src;
  eDiv.style.display = 'none';
 }
 
 // Clears a cookie
 this.clearCookie = function()
 {
  var now = new Date();
  var yesterday = new Date(now.getTime() - 1000 * 60 * 60 * 24);
  this.setCookie('co'+this.instanceName, 'cookieValue', yesterday);
  this.setCookie('cs'+this.instanceName, 'cookieValue', yesterday);
 }
 
 // Sets value in a cookie
 document.status ="Daytona Control Panel v.2.0"
 this.setCookie = function(cookieName, cookieValue, expires, path, domain, secure) {
  document.cookie =
   escape(cookieName) + '=' + escape(cookieValue)
   + (expires ? '; expires=' + expires.toGMTString() : '')
   + (path ? '; path=' + path : '')
   + (domain ? '; domain=' + domain : '')
   + (secure ? '; secure' : '');
 }
 
 // Gets a value from a cookie
 this.getCookie = function(cookieName) {
  var cookieValue = '';
  var posName = document.cookie.indexOf(escape(cookieName) + '=');
  if (posName != -1)
  {
   var posValue = posName + (escape(cookieName) + '=').length;
   var endPos = document.cookie.indexOf(';', posValue);
   if (endPos != -1)
    cookieValue = unescape(document.cookie.substring(posValue, endPos));
   else
    cookieValue = unescape(document.cookie.substring(posValue));
  }
  return (cookieValue);
 }
 
 // Returns ids of open nodes as a string
 this.updateCookie = function()
 {
  sReturn = '';
  for (n=0;n<this.arrNodes.length;n++)
  {
   if (this.arrNodes[n]._io && this.arrNodes[n].pid != this.rootNode)
   {
    if (sReturn) sReturn += '.';
    sReturn += this.arrNodes[n].id;
   }
  }
  this.setCookie('co' + this.instanceName, sReturn);
 }
 
// tree object ends
}
 

// Functions used by the dTree object but are not really a part of it
// ------------------------------------------------------------------------------------------------
 
// Push and pop for arrays is not implemented in Internet Explorer
if (!Array.prototype.push) {
 Array.prototype.push = function array_push() {
  for(var i=0;i<arguments.length;i++)
   this[this.length]=arguments[i];
  return this.length;
 }
}
if (!Array.prototype.pop) {
 Array.prototype.pop = function array_pop() {
  lastElement = this[this.length-1];
  this.length = Math.max(this.length-1,0);
  return lastElement;
 }
}