function Node(id, pid, name, url, title, target, icon, iconOpen, open) {
 this.id = id; 
 this.pid = pid; 
 this.name = name;
 this.url = url;  
 this.title = title; 
 this.target = target; 
 this.icon = icon; 
 this.iconOpen = iconOpen;
 this._io = open || false; 
 this._is = false;
 this._ls = false; 
 this._hc = false; 
 this._ai = 0;    
 this._p;    
};

function dTree(objName,imagePath) {

 this.config = {
  target   : null,
  folderLinks  : true, 
  useSelection : true, 
  useCookies  : true,
  useLines  : true,
  useIcons  :false,
  useStatusText : false,
  closeSameLevel : false,
  inOrder   : false, 
  imagePath   : null

 }

 this.icon = {
  root:(imagePath===undefined?'img/base.gif':imagePath + '/img/base.gif'),
  folder:(imagePath===undefined?'img/folder.gif':imagePath + '/img/folder.gif'),
  folderOpen:(imagePath===undefined?'img/folderopen.gif':imagePath + '/img/folderopen.gif'),
  node:(imagePath===undefined?'img/page.gif':imagePath + '/img/page.gif'),
  empty:(imagePath===undefined?'img/empty.gif':imagePath + '/img/empty.gif'),
  line:(imagePath===undefined?'img/line.gif':imagePath + '/img/line.gif'),
  join: (imagePath===undefined?'img/join.gif':imagePath + '/img/join.gif'),
  joinBottom: (imagePath===undefined?'img/joinbottom.gif':imagePath + '/img/joinbottom.gif'),
  plus:(imagePath===undefined?'img/plus.gif':imagePath + '/img/plus.gif'),
  plusBottom:(imagePath===undefined?'img/plusbottom.gif':imagePath + '/img/plusbottom.gif'),
  minus: (imagePath===undefined?'img/minus.gif':imagePath + '/img/minus.gif'),
  minusBottom: (imagePath===undefined?'img/minusbottom.gif':imagePath + '/img/minusbottom.gif'),
  nlPlus: (imagePath===undefined?'img/nolines_plus.gif':imagePath + '/img/nolines_plus.gif'),
  nlMinus: (imagePath===undefined?'img/nolines_minus.gif':imagePath + '/img/nolines_minus.gif')
 };

 this.obj = objName;
 this.aNodes = [];
 this.aIndent = []; 
 this.root = new Node(-1);
 this.selectedNode = null;
 this.selectedFound = false;
 this.completed = false;
};

dTree.prototype.add = function(id, pid, name, url, title, target, icon, iconOpen, open) {

 this.aNodes[this.aNodes.length] = new Node(id, pid, name, url, title, target, icon, iconOpen, open);

};

dTree.prototype.openAll = function() {

 this.oAll(true);

};

dTree.prototype.closeAll = function() {

 this.oAll(false);

};

dTree.prototype.toString = function() {
 
 var str = '<div class="dtree">\n';

 if (document.getElementById) {

  if (this.config.useCookies) this.selectedNode = this.getSelected();

  str += this.addNode(this.root);

 } else str += 'Browser not supported.';

 str += '</div>';

 if (!this.selectedFound) this.selectedNode = null;

 this.completed = true;
 
 return str;

};

dTree.prototype.addNode = function(pNode) {

 var str = '';

 var n=0;

 if (this.config.inOrder) n = pNode._ai;

 for (n; n<this.aNodes.length; n++) {

  if (this.aNodes[n].pid == pNode.id) {

   var cn = this.aNodes[n];

   cn._p = pNode;

   cn._ai = n;

   this.setCS(cn);

   if (!cn.target && this.config.target) cn.target = this.config.target;

   if (cn._hc && !cn._io && this.config.useCookies) cn._io = this.isOpen(cn.id);

   if (!this.config.folderLinks && cn._hc) cn.url = null;

   if (this.config.useSelection && cn.id == this.selectedNode && !this.selectedFound) {

     cn._is = true;

     this.selectedNode = n;

     this.selectedFound = true;

   }

   str += this.node(cn, n);

   if (cn._ls) break;

  }

 }

 return str;

};

dTree.prototype.node = function(node, nodeId) {

 var str = '<div class="dTreeNode">' + this.indent(node, nodeId);

 if (this.config.useIcons) {

  if (!node.icon) node.icon = (this.root.id == node.pid) ? this.icon.root : ((node._hc) ? this.icon.folder : this.icon.node);

  if (!node.iconOpen) node.iconOpen = (node._hc) ? this.icon.folderOpen : this.icon.node;

  if (this.root.id == node.pid) {

   node.icon = this.icon.root;

   node.iconOpen = this.icon.root;

  }

  str += '<img id="i' + this.obj + nodeId + '" src="' + ((node._io) ? node.iconOpen : node.icon) + '" alt="" />';

 }

 if (node.url) {

  str += '<a id="s' + this.obj + nodeId + '" class="' + ((this.config.useSelection) ? ((node._is ? 'nodeSel' : 'node')) : 'node') + '" href="' + node.url + '"';

  if (node.title) str += ' title="' + node.title + '"';

  if (node.target) str += ' target="' + node.target + '"';

  if (this.config.useStatusText) str += ' onmouseover="window.status=\'' + node.name + '\';return true;" onmouseout="window.status=\'\';return true;" ';

  if (this.config.useSelection && ((node._hc && this.config.folderLinks) || !node._hc))

   str += ' onclick="javascript: ' + this.obj + '.s(' + nodeId + ');"';

  str += '>';

 } else if ((!this.config.folderLinks || !node.url) && node._hc && node.pid != this.root.id){

  str += '<a href="javascript: ' + this.obj + '.o(' + nodeId + ');" class="node">';
  
 }

 str += node.name;

 if ((node.url || ((!this.config.folderLinks || !node.url) && node._hc)) && node.pid != this.root.id) str += '</a>';

 str += '</div>';


 if (node._hc) {

  str += '<div id="d' + this.obj + nodeId + '" class="clip" style="display:' + ((this.root.id == node.pid || node._io) ? 'block' : 'none') + ';">';

  if ((node._hc && node._io && node.pid!=-1) || (node._hc && node.pid==-1)) {
   str += this.addNode(node);
  }
  
  str += '</div>';

 }

 this.aIndent.pop();

 return str;

};

dTree.prototype.indent = function(node, nodeId) {

 var str = '';

 if (this.root.id != node.pid) {

  for (var n=0; n<this.aIndent.length; n++){
   
   str += '<img src="' + ( (this.aIndent[n] == 1 && this.config.useLines) ? this.icon.line : this.icon.empty ) + '" alt="" />';
   
  }

  (node._ls) ? this.aIndent.push(0) : this.aIndent.push(1);

  if (node._hc) {

   str += '<a href="javascript: ' + this.obj + '.o(' + nodeId + ');"><img id="j' + this.obj + nodeId + '" src="';

   if (!this.config.useLines) str += (node._io) ? this.icon.nlMinus : this.icon.nlPlus;

   else str += ( (node._io) ? ((node._ls && this.config.useLines) ? this.icon.minusBottom : this.icon.minus) : ((node._ls && this.config.useLines) ? this.icon.plusBottom : this.icon.plus ) );

   str += '" alt="" /></a>';

  } else str += '<img src="' + ( (this.config.useLines) ? ((node._ls) ? this.icon.joinBottom : this.icon.join ) : this.icon.empty) + '" alt="" />';

 }

 return str;

};

dTree.prototype.setCS = function(node) {

 var lastId;

 for (var n=0; n<this.aNodes.length; n++) {

  if (this.aNodes[n].pid == node.id) node._hc = true;

  if (this.aNodes[n].pid == node.pid) lastId = this.aNodes[n].id;

 }

 if (lastId==node.id) node._ls = true;

};

dTree.prototype.getSelected = function() {

 var sn = this.getCookie('cs' + this.obj);

 return (sn) ? sn : null;

};

dTree.prototype.s = function(id) {

 if (!this.config.useSelection) return;

 var cn = this.aNodes[id];

 if (cn._hc && !this.config.folderLinks) return;

 if (this.selectedNode != id) {
  
  if (this.selectedNode || this.selectedNode==0) {

   eOld = document.getElementById("s" + this.obj + this.selectedNode);

   if(eOld){
    eOld.className = "node";
   }

  }

  eNew = document.getElementById("s" + this.obj + id);

  if(eNew){
   eNew.className = "nodeSel";
  }

  this.selectedNode = id;

  if (this.config.useCookies) this.setCookie('cs' + this.obj, cn.id);

 }

};

dTree.prototype.delayOpen = function(node) {
 var cn = node;
 var id = node._ai;

 if(cn._io==false)
 {
  var childrenDIV = document.getElementById('d' + this.obj + id);

  if(childrenDIV!=null && childrenDIV.innerHTML=="")
  {
   var nodeTemp = cn;
   var indentArray = new Array();

   while(nodeTemp._p.id!=this.root.id)
   {
    indentArray[indentArray.length] = (nodeTemp._ls) ? 0 : 1;
    nodeTemp = nodeTemp._p;
   }

   for(var i = indentArray.length - 1; i>=0; i--)
   {
    this.aIndent.push(indentArray[i]);
   }

   childrenDIV.innerHTML = this.addNode(cn);

   for(var i = 0; i < indentArray.length; i++)
   {
    this.aIndent.pop();
   }
  }
 }
}

dTree.prototype.o = function(id) {

 var cn = this.aNodes[id];
 
 this.delayOpen(cn);

 this.nodeStatus(!cn._io, id, cn._ls);

 cn._io = !cn._io;

 if (this.config.closeSameLevel) this.closeLevel(cn);

 if (this.config.useCookies) this.updateCookie();

};

dTree.prototype.oAll = function(status) {

 for (var n=0; n<this.aNodes.length; n++) {

  if (this.aNodes[n]._hc && this.aNodes[n].pid != this.root.id) {
   
   this.delayOpen(this.aNodes[n]);

   this.nodeStatus(status, n, this.aNodes[n]._ls)

   this.aNodes[n]._io = status;

  }

 }

 if (this.config.useCookies) this.updateCookie();

};

dTree.prototype.openTo = function(nId, bSelect) {

 for (var n=0; n<this.aNodes.length; n++) {

  if (this.aNodes[n].id == nId) {

   nId=n;

   break;

  }

 }

 var cn=this.aNodes[nId];

 var parentArray = new Array();

 while(cn.pid!=-1){
  
  parentArray.push(cn);
  
  for (var n=0; n<this.aNodes.length; n++) {
   
   if (this.aNodes[n].id == cn.pid) {
    
    cn = this.aNodes[n];
    
    break;
   }
  }
 }

 while(cn=parentArray.pop()){

  if(this.completed && bSelect){
   
   this.s(cn._ai);
   
  }
  

  if(cn._hc && parentArray.length>0){
   
   this.delayOpen(cn);

   this.nodeStatus(true, cn._ai, cn._ls);
  
   cn._io = true;
  
   if (this.config.closeSameLevel) this.closeLevel(cn);
  
   if (this.config.useCookies) this.updateCookie();
   
  }
 }

};

dTree.prototype.closeLevel = function(node) {

 for (var n=0; n<this.aNodes.length; n++) {

  if (this.aNodes[n].pid == node.pid && this.aNodes[n].id != node.id && this.aNodes[n]._hc) {

   this.nodeStatus(false, n, this.aNodes[n]._ls);

   this.aNodes[n]._io = false;

   this.closeAllChildren(this.aNodes[n]);

  }

 }

}

dTree.prototype.closeAllChildren = function(node) {

 for (var n=0; n<this.aNodes.length; n++) {

  if (this.aNodes[n].pid == node.id && this.aNodes[n]._hc) {

   if (this.aNodes[n]._io) this.nodeStatus(false, n, this.aNodes[n]._ls);

   this.aNodes[n]._io = false;

   this.closeAllChildren(this.aNodes[n]);  

  }

 }

}


dTree.prototype.nodeStatus = function(status, id, bottom) {

 eDiv = document.getElementById('d' + this.obj + id);

 eJoin = document.getElementById('j' + this.obj + id);

 if (this.config.useIcons) {

  eIcon = document.getElementById('i' + this.obj + id);

  eIcon.src = (status) ? this.aNodes[id].iconOpen : this.aNodes[id].icon;

 }

 eJoin.src = (this.config.useLines)?

 ((status)?((bottom)?this.icon.minusBottom:this.icon.minus):((bottom)?this.icon.plusBottom:this.icon.plus)):

 ((status)?this.icon.nlMinus:this.icon.nlPlus);

 eDiv.style.display = (status) ? 'block': 'none';

};

dTree.prototype.clearCookie = function() {

 var now = new Date();

 var yesterday = new Date(now.getTime() - 1000 * 60 * 60 * 24);

 this.setCookie('co'+this.obj, 'cookieValue', yesterday);

 this.setCookie('cs'+this.obj, 'cookieValue', yesterday);

};

dTree.prototype.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' : '');

};

dTree.prototype.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);

};

dTree.prototype.updateCookie = function() {

 var str = '';

 for (var n=0; n<this.aNodes.length; n++) {

  if (this.aNodes[n]._io && this.aNodes[n].pid != this.root.id) {

   if (str) str += '.';

   str += this.aNodes[n].id;

  }

 }

 this.setCookie('co' + this.obj, str);

};

dTree.prototype.isOpen = function(id) {

 var aOpen = this.getCookie('co' + this.obj).split('.');

 for (var n=0; n<aOpen.length; n++)

  if (aOpen[n] == id) return true;

 return false;

};

 


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;

 }

};