function jsonPointer(data,parent){
	this.d=data;
	this.dp=parent;
}
jsonPointer.prototype={
	text:function(){ var afff=function(n){ var p=[]; for(var i=0; i<n.length; i++) p.push("{"+sfff(n[i])+"}"); return p.join(","); }; var sfff=function(n){ var p=[]; for (var a in n) if (typeof(n[a])=="object"){ if (a.length) p.push(a+":["+afff(n[a])+"]");  else p.push(a+":{"+sfff(n[a])+"}"); }else p.push(a+':"'+n[a]+'"'); return p.join(","); }; return "{"+sfff(this.d)+"}"; },
	get:function(name){return this.d[name]; },
	exists:function(){return !!this.d },
	content:function(){return this.d.content; },
	each:function(name,f,t){  var a=this.d[name]; var c=new jsonPointer(); if (a) for (var i=0; i<a.length; i++) { c.d=a[i]; f.apply(t,[c,i]); } },
	get_all:function(){ return this.d; },
	sub:function(name){ return new jsonPointer(this.d[name],this.d) },
	sub_exists:function(name){ return !!this.d[name]; },
	each_x:function(name,rule,f,t,i){  var a=this.d[name]; var c=new jsonPointer(0,this.d); if (a) for (i=i||0; i<a.length; i++) if (a[i][rule]) { c.d=a[i]; if(f.apply(t,[c,i])==-1) return; } },
	up:function(name){ return new jsonPointer(this.d.parentNode,this.d);  },
	set:function(name,val){ this.d[name]=val;  },
	clone:function(name){ return new jsonPointer(this.d,this.dp); },
	through:function(name,rule,v,f,t){  var a=this.d[name]; if (a.length) for (var i=0; i<a.length; i++) { if (a[i][rule]!=null && a[i][rule]!="" &&  (!v || a[i][rule]==v )) { var c=new jsonPointer(a[i],this.d);  f.apply(t,[c,i]); }  var w=this.d; this.d=a[i]; if (this.sub_exists(name)) this.through(name,rule,v,f,t); this.d=w;   } }
}

/**
*     @desc: load tree from js array file|stream
*     @type: public
*     @param: file - link to JSArray file
*     @param: afterCall - function which will be called after xml loading
*     @topic: 0
*/
   dhtmlXTreeObject.prototype.loadJSArrayFile=function(file,afterCall){
      if (!this.parsCount) this.callEvent("onXLS",[this,this._ld_id]); this._ld_id=null; this.xmlstate=1;
      var that=this;
      
      this.XMLLoader=new dtmlXMLLoaderObject(function(){
      	eval("var z="+arguments[4].xmlDoc.responseText);
      	that.loadJSArray(z);
      },this,true,this.no_cashe);
	  if (afterCall) this.XMLLoader.waitCall=afterCall;
      this.XMLLoader.loadXML(file);
   };
   
/**
*     @desc: load tree from csv file|stream
*     @type: public
*     @param: file - link to CSV file
*     @param: afterCall - function which will be called after xml loading
*     @topic: 0
*/
   dhtmlXTreeObject.prototype.loadCSV=function(file,afterCall){
      if (!this.parsCount) this.callEvent("onXLS",[this,this._ld_id]); this._ld_id=null; this.xmlstate=1;
      var that=this;
	this.XMLLoader=new dtmlXMLLoaderObject(function(){
      	that.loadCSVString(arguments[4].xmlDoc.responseText);
      },this,true,this.no_cashe);
	  if (afterCall) this.XMLLoader.waitCall=afterCall;
      this.XMLLoader.loadXML(file);
   };
   
/**
*     @desc: load tree from js array object
*     @type: public
*     @param: ar - js array
*     @param: afterCall - function which will be called after xml loading
*     @topic: 0
*/  
dhtmlXTreeObject.prototype.loadJSArray=function(ar,afterCall){
	//array id,parentid,text
	var z=[];
	for (var i=0; i<ar.length; i++){
		if (!z[ar[i][1]]) z[ar[i][1]]=[];
		z[ar[i][1]].push({id:ar[i][0],text:ar[i][2]});
	}
	
	var top={id: this.rootId};
	var f=function(top,f){
		if (z[top.id]){
			top.item=z[top.id];
			for (var j=0; j<top.item.length; j++)
				f(top.item[j],f);
		}
	}
	f(top,f);
	this.loadJSONObject(top,afterCall);
}


/**
*     @desc: load tree from csv string
*     @type: public
*     @param: csv - csv string 
*     @param: afterCall - function which will be called after xml loading
*     @topic: 0
*/
dhtmlXTreeObject.prototype.loadCSVString=function(csv,afterCall){
	//array id,parentid,text
	var z=[];
	var ar=csv.split("\n");
	for (var i=0; i<ar.length; i++){
		var t=ar[i].split(",");
		if (!z[t[1]]) z[t[1]]=[];
		z[t[1]].push({id:t[0],text:t[2]});
	}
	
	var top={id: this.rootId};
	var f=function(top,f){
		if (z[top.id]){
			top.item=z[top.id];
			for (var j=0; j<top.item.length; j++)
				f(top.item[j],f);
		}
	}
	f(top,f);
	this.loadJSONObject(top,afterCall);
}


/**
*     @desc: load tree from json object
*     @type: public
*     @param: json - json object
*     @param: afterCall - function which will be called after xml loading
*     @topic: 0
*/
   dhtmlXTreeObject.prototype.loadJSONObject=function(json,afterCall){
      if (!this.parsCount) this.callEvent("onXLS",[this,null]);this.xmlstate=1;
      var p=new jsonPointer(json);
	  this._parse(p);
	  this._p=p;
      if (afterCall) afterCall();
   };
   

/**   
*     @desc: load tree from json file
*     @type: public
*     @param: file - link to JSON file
*     @param: afterCall - function which will be called after xml loading
*     @topic: 0
*/
   dhtmlXTreeObject.prototype.loadJSON=function(file,afterCall){
      if (!this.parsCount) this.callEvent("onXLS",[this,this._ld_id]); this._ld_id=null; this.xmlstate=1;
      var that=this;
      
      this.XMLLoader=new dtmlXMLLoaderObject(function(){
      	eval("var t="+arguments[4].xmlDoc.responseText);
      	var p=new jsonPointer(t);
      	that._parse(p);
      	that._p=p;
      },this,true,this.no_cashe);
      
	  if (afterCall) this.XMLLoader.waitCall=afterCall;
      this.XMLLoader.loadXML(file);
   };   
   
   
//two methods below are kind of ugly, but it is nearly impossible to create beautiful serialization with current tree data storage
/**   
*     @desc: return tree as json string
*     @type: public
*     @topic: 0
*/
dhtmlXTreeObject.prototype.serializeTreeToJSON=function(){
	var out=["{id:'"+this.rootId+"', item:["];
	var p=[];
		for (var i=0; i<this.htmlNode.childsCount; i++)
			p.push(this._serializeItemJSON(this.htmlNode.childNodes[i]));
	out.push(p.join(","));
	out.push("]}");	
	return out.join("");
};
dhtmlXTreeObject.prototype._serializeItemJSON=function(itemNode){
	var out=[];
	if (itemNode.unParsed)
			return (itemNode.unParsed.text());
  
	if (this._selected.length)
		var lid=this._selected[0].id;
	else lid="";
    var text=itemNode.span.innerHTML;

    if (this._xescapeEntities)
        for (var i=0; i<this._serEnts.length; i++)
            text=text.replace(this._serEnts[i][2],this._serEnts[i][1]);

	if (!this._xfullXML)
		out.push('{ id:"'+itemNode.id+'", '+(this._getOpenState(itemNode)==1?' open:"1", ':'')+(lid==itemNode.id?' select:"1",':'')+' text:"'+text+'"'+( ((this.XMLsource)&&(itemNode.XMLload==0))?", child:\"1\" ":""));
	else
		out.push('{ id:"'+itemNode.id+'", '+(this._getOpenState(itemNode)==1?' open:"1", ':'')+(lid==itemNode.id?' select:"1",':'')+' text:"'+text+'", im0:"'+itemNode.images[0]+'", im1:"'+itemNode.images[1]+'", im2:"'+itemNode.images[2]+'" '+(itemNode.acolor?(', aCol:"'+itemNode.acolor+'" '):'')+(itemNode.scolor?(', sCol:"'+itemNode.scolor+'" '):'')+(itemNode.checkstate==1?', checked:"1" ':(itemNode.checkstate==2?', checked:"-1"':''))+(itemNode.closeable?', closeable:"1" ':''));

	if ((this._xuserData)&&(itemNode._userdatalist))
		{
			out.push(", userdata:[");
			var names=itemNode._userdatalist.split(",");
			var p=[];
			for  (var i=0; i<names.length; i++)
				p.push+="{ name:\""+names[i]+"\" , content:\""+itemNode.userData["t_"+names[i]]+"\" }";
			out.push(p.join(",")); out.push("]");
		}
		
		if (itemNode.childsCount){
			out.push(", item:[");
			var p=[];
		for (var i=0; i<itemNode.childsCount; i++)
			p.push(this._serializeItemJSON(itemNode.childNodes[i]));
			out.push(p.join(","));
			out.push("]\n");
		}
			
		out.push("}\n")
	return out.join("");
}