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;
};
// Tree object
function dTree(objName) {
    this.config = {
                  target:
                      null,
                  folderLinks:
                      true,
                  useSelection:
                      true,
                  useCookies:
                      true,
                  useLines:
                      false,
                  useIcons:
                      false,
                  useStatusText:
                      false,
                  closeSameLevel:
                      false,
                  inOrder:
                      false
                  }

                  this.icon = {
                              root  : ''
                                  ,
                              folder  : 'templates/shr/layout/tree/folder.gif'
                                  ,
                              folderOpen : 'templates/shr/layout/tree/folderopen.gif'
                                  ,
                              node  : 'templates/shr/layout/tree/page.gif'
                                  ,
                              empty  : 'templates/shr/layout/tree/empty.gif'
                                  ,
                              line  : 'templates/shr/layout/tree/line.gif'
                                  ,
                              join  : 'templates/shr/layout/tree/join.gif'
                                  ,
                              joinBottom : 'templates/shr/layout/tree/joinbottom.gif'
                                  ,
                              plus  : 'templates/shr/layout/tree/plus.gif'
                                  ,
                              plusBottom : 'templates/shr/layout/tree/plusbottom.gif'
                                  ,
                              minus  : 'templates/shr/layout/tree/minus.gif'
                                  ,
                              minusBottom : 'templates/shr/layout/tree/minusbottom.gif'
                                  ,
                              nlPlus  : 'templates/shr/layout/tree/nolines_plus.gif'
                                  ,
                              nlMinus  : 'templates/shr/layout/tree/nolines_minus.gif'
                              };
    this.obj = objName;
    this.aNodes = [];
    this.aIndent = [];
    this.root = new Node(-1);
    this.selectedNode = null;
    this.selectedFound = false;
    this.completed = false;
};
// Adds a new node to the node array
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);
                      };
// Open/close all nodes
dTree.prototype.openAll = function() {
                              this.oAll(true);
                          };
dTree.prototype.closeAll = function() {
                               this.oAll(false);
                           };
// Outputs the tree to the page
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;
                           };
// Creates the tree structure
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;
                          };
// Creates the node icon, url and text
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 + '"';
                       //alert("s" + this.obj + nodeId);
str += '<a id="s' + this.obj + nodeId + '" class="' + ((this.config.useSelection) ? ((node._is ? 'nodeSel' : 'node')) : 'node') + '" onClick="' + node.url + ';d.openTo('+ node.id + ', true)"';
                               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))
                               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') + ';">';
                               str += this.addNode(node);
                               str += '</div>';
                           }
                           this.aIndent.pop();
                           return str;
                       };
// Adds the empty and line icons
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="" />';
                                     str += '<div class="indent">&nbsp;</div>';
                                 (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="" />';

                                     str = '<div class="indent">&nbsp;</div>';
                             }
                             return str;
                         };
// Checks if a node has any children and if it is the last sibling
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;
                        };
// Returns the selected node
dTree.prototype.getSelected = function() {
                                  var sn = this.getCookie('cs' + this.obj);
                                  return (sn) ? sn : null;
                              };
// Highlights the selected node
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);
                                eOld.className = "node";
                            }
                            eNew = document.getElementById("s" + this.obj + id);
                            eNew.className = "nodeSel";
                            this.selectedNode = id;
                            if (this.config.useCookies)
                                this.setCookie('cs' + this.obj, cn.id);
                        }
                    };
// Toggle Open or close
dTree.prototype.o = function(id) {
                        var cn = this.aNodes[id];
                        this.nodeStatus(!cn._io, id, cn._ls);
                        cn._io = !cn._io;
                        if (this.config.closeSameLevel)
                            this.closeLevel(cn);
                        if (this.config.useCookies)
                            this.updateCookie();
                    };
// Open or close all nodes
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.nodeStatus(status, n, this.aNodes[n]._ls)
                                   this.aNodes[n]._io = status;
                               }
                           }
                           if (this.config.useCookies)
                               this.updateCookie();
                       };
// Opens the tree to a specific node
dTree.prototype.openTo = function(nId, bSelect, bFirst) {
                             if (!bFirst) {
                                 for (var n=0; n<this.aNodes.length; n++) {
                                     if (this.aNodes[n].id == nId) {
                                         nId=n;
                                         break;
                                     }
                                 }
                             }
                             var cn=this.aNodes[nId];
                             if (cn.pid==this.root.id || !cn._p)
                                 return;
                             cn._io = true;
                             cn._is = bSelect;
                             if (this.completed && cn._hc)
                                 this.nodeStatus(true, cn._ai, cn._ls);
                             if (this.completed && bSelect)
                                 this.s(cn._ai);
                             else if (bSelect)
                                 this._sn=cn._ai;
                             this.openTo(cn._p._ai, false, true);
                         };
// Closes all nodes on the same level as certain node
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]);
                                     }
                                 }
                             }
                             // Closes all children of a node
                             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]);
                                                                        }
                                                                    }
                                                                }
                                                                // Change the status of a node(open or closed)
                                                                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';
                                                                                             };
// [Cookie] Clears a cookie
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);
                              };
// [Cookie] Sets value in a cookie
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' : '');
                            };
// [Cookie] Gets a value from a cookie
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);
                            };
// [Cookie] Returns ids of open nodes as a string
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);
                               };
// [Cookie] Checks if a node id is in a cookie
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 Push and pop is not implemented by the browser
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;
                          }
                      };