/*--------------------------------------------------|
| dTree 2.05 | www.destroydrop.com/javascript/tree/ |
|---------------------------------------------------|
| Copyright (c) 2002-2003 Geir Landrö               |
|                                                   |
| This script can be used freely as long as all     |
| copyright messages are intact.                    |
|                                                   |
| Updated: 17.04.2003                               |
|--------------------------------------------------*/

// Node object
function Node(id,pid,name,url,urla,title,target,icon,iconOpen,open)
{
 this.id=id;
 this.pid=pid;
 this.name=name;
 this.url=url;
 this.urla=urla;
 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				: true,
	useIcons				: true,
	useStatusText		: false,
	closeSameLevel	: true,
	inOrder					: false
 }
 
 this.icon=
 {
	root				: 'skin01/mt_base.gif',
	folder			: 'skin01/mt_folder.gif',
	folderOpen	: 'skin01/mt_folderopen.gif',
	node				: 'skin01/mt_page.gif',
	empty				: 'skin01/mt_empty.gif',
	line				: 'skin01/mt_line.gif',
	join				: 'skin01/mt_join.gif',
	joinBottom	: 'skin01/mt_joinbottom.gif',
	plus				: 'skin01/mt_plus.gif',
	plusBottom	: 'skin01/mt_plusbottom.gif',
	minus				: 'skin01/mt_minus.gif',
	minusBottom	: 'skin01/mt_minusbottom.gif',
	nlPlus			: 'skin01/mt_nolines_plus.gif',
	nlMinus			: 'skin01/mt_nolines_minus.gif',
	chg         : 'skin01/ic-pen.gif',
	del         : 'skin01/ic-cut.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,urla,title,target,icon,iconOpen,open)
{
 this.aNodes[this.aNodes.length]=new Node(id,pid,name,url,urla,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="" unselectable="on" />';	
 }
 */
 
 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)) str+='</a>';

 if(node.url && nodeId)
 {
  //str+='&nbsp;<a class="node" href="'+ node.url+'&b=1" title="Edycja wybranej pozycji">'; 	
	//str+='<img id="i'+this.obj+nodeId+'" src="'+this.icon.chg+'" alt="Edycja" unselectable="on" />';
  //str+='</a>';
  
  //str+='&nbsp;<a class="node" href="'+ node.urla+'&act=28" title="Usuniêcie wybranej pozycji">'; 	
	//str+='<img src="'+this.icon.del+'" alt="Usuniêcie" unselectable="on" />';
  //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="" unselectable="on" />';

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

 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);
	
 }
 
 if(document.getElementById('j'+this.obj+id))
 {
  var cn=this.aNodes[id];
  
  //alert(cn._io);
  
  if(!cn._io) d.o(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;
 }
};