// Author: Simone Guagnelli <simone.guagnelli@fastwebnet.it>
// Data: 25 Dicembre 2003



function preloadImg(arg){for(var i in arg){var im=new Image();im.src=arg[i];}}
function browser_check(){var is_major=parseInt(navigator.appVersion);this.nver=is_major;this.ver=navigator.appVersion;this.agent=navigator.userAgent;this.dom=document.getElementById?1:0;this.opera=window.opera?1:0;this.ie5=(this.ver.indexOf("MSIE 5")>-1&&this.dom&&!this.opera)?1:0;this.ie6=(this.ver.indexOf("MSIE 6")>-1&&this.dom&&!this.opera)?1:0;this.ie4=(document.all&&!this.dom&&!this.opera)?1:0;this.ie=this.ie4||this.ie5||this.ie6;this.mac=this.agent.indexOf("Mac")>-1;this.ns6=(this.dom&&parseInt(this.ver)>=5)?1:0;this.ie3=(this.ver.indexOf("MSIE")&&(is_major<4));this.hotjava=(this.agent.toLowerCase().indexOf('hotjava')!=-1)?1:0;this.ns4=(document.layers&&!this.dom&&!this.hotjava)?1:0;this.bw=(this.ie6||this.ie5||this.ie4||this.ns4||this.ns6||this.opera);this.ver3=(this.hotjava||this.ie3);this.opera7=((this.agent.toLowerCase().indexOf('opera 7')>-1) || (this.agent.toLowerCase().indexOf('opera/7')>-1));this.operaOld=this.opera&&!this.opera7;return this;};
function NTreeFormat( fmt, tree )
{
    this.init = function( fmt, tree )
    {
        this.left   = fmt[0];
        this.top    = fmt[1];
        this.showB  = fmt[2];
        this.clB  = fmt[3][0];
        this.exB  = fmt[3][1];
        this.iE  = fmt[3][2];
        this.Bw  = fmt[4][0];
        this.Bh  = fmt[4][1];
        this.Ew  = fmt[4][2];
        this.showF  = fmt[5];
        this.clF  = fmt[6][0];
        this.exF  = fmt[6][1];
        this.iF  = fmt[6][2];
        this.Fw  = fmt[7][0];
        this.Fh  = fmt[7][1];
        this.ident = fmt[8];
        this.back = new NTreeBack(this.left, this.top, fmt[9], 'cls'+tree.name+'_back');
        this.nst = fmt[10];
        this.nstl = fmt[11];
        this.so = fmt[12];
        this.pg = fmt[13][0];
        this.sp = fmt[13][1];
        this.cl_pallocco=fmt[14][0];
        this.ex_pallocco=fmt[14][1];
        this.selected_item_style = fmt[15];
        this.rels=fmt[16];
        this.nonexistentcolor=fmt[17];
        //preload
        if (this.showB)preloadImg([this.clB,this.exB,this.iE]);
        if (this.showF)preloadImg([this.exF,this.clF,this.iF,this.cl_pallocco,this.ex_pallocco]);
    }
    this.nstyle = function ( lvl )
    {
    return ( und(this.nstl[lvl]) ) ? this.nst : this.nstl[lvl];
    }

    this.idn = function( lvl )
    {
        var r = ( und(this.ident[lvl]) ) ? this.ident[0]*lvl : this.ident[lvl];
        return r;
    }
    this.init(fmt, tree);
}

var _px='px';
function NosTree( name, nodes, format )
{

    this.bw=new browser_check();
    this.ns4=this.bw.ns4;
    if (this.bw.operaOld)
        _px = '';
    this.name = name;

    this.fmt = new NTreeFormat(format, this);
    window.NTrees[this.name]=this;




    if (window.und(NTrees)) window.NTrees=[];
   
    this.Nodes=[];
    
    this.rootNode = new NTreeNode(null, "", "", "", null);
    this.rootNode.treeView = this;
    this.selectedNode = null;

    this.maxWidth = 0;
    this.maxHeight = 0;
    this.ondraw = null;
   
    this.nbn = function( nm ){
        for (var i = 0;i<this.Nodes.length;i++)
            if (this.Nodes[i].text == nm)
                return this.Nodes[i];
        return null;
    }


    this.nodeByName=this.nbn;
    this.nodeByID=function(id){for (var i=0;i<this.Nodes.length;i++) if (this.Nodes[i].nodeID==id) return this.Nodes[i];return null;}
    this.nodeByURL=function(u){for(var i=0;i<this.Nodes.length;i++) if (this.Nodes[i].url==u) return this.Nodes[i];return null;};

    this.moveTo=function(x,y){
    this.fmt.back.top=y;
    this.fmt.back.left=x;
    this.fmt.back.moveTo(x,y);
    this.fmt.top=y;
    this.fmt.left=x;
    this.draw();}
    
    

   this.addNode = function (node)
   {
          var parentNode = node.parentNode;
          this.Nodes[this.Nodes.length]=node;
          node.index = this.Nodes.length - 1;
          if (parentNode == null) {
             this.rootNode.children[this.rootNode.children.length]=node;
          }
          else
            parentNode.children[parentNode.children.length]=node;
            return node;
    }
  

    this.rebuildTree=function(){
        var s=""; 
        assembleChildren(this.rootNode); 
        this.rootNode.next=null; 
        var nodes = this.Nodes; 

for (var i=0; i < this.Nodes.length; i++)
        {  s+=this.Nodes[i].init();  
           if (this.ver3 && this.Nodes[i].hasChildren()) this.Nodes[i].expanded=true;  
        }
if (this.bw.ns4)
        {
        s='<ilayer id="cls'+this.name+'_back" width="'+this.fmt.rels[0]+'" height="'+this.fmt.rels[1]+'">' + s + '</ilayer>';  
        }
       else 
        {  
        s='<div id="cls'+this.name+'_back" style="position:relative;left:0px;top:0px;width:'+this.fmt.rels[0]+
           'px;height:'+this.fmt.rels[1]+'px;">' + s +'</div>';  
        } 

        document.write(s); 
        
        this.fmt.back.el=this.bw.ns4?document.layers[this.fmt.back.name]:document.all? document.all[this.fmt.back.name]:document.getElementById(this.fmt.back.name);
        
if ( !this.ver3 )for (var i=0; i < this.Nodes.length; i++)this.getEl(this.Nodes[i]); 

    }

this.getEl = function(node){ 
if (this.ns4)   node.el=this.fmt.back.el.layers[node.id()+"d"]; 
else   
node.el=document.all? document.all[node.id()+"d"] : document.getElementById(node.id()+"d");  }; 


    
function assembleChildren( node ){ 
    if (node.children.length > 0 ) 
    node.children[node.children.length-1].next=null; 
    for (var i=0; i < node.children.length; i++)
     { if ( i+1 < node.children.length ) node.children[i].next=node.children[i+1];
    if (node.children[i].children.length > 0) assembleChildren(node.children[i]); }
    return;}

    

this.getEl = function(node){ 
    if (this.ns4)   node.el=this.fmt.back.el.layers[node.id()+"d"]; 
    else   node.el=document.all? document.all[node.id()+"d"] : document.getElementById(node.id()+"d");  }; 
  


this.getImgEl=function(node){
        if (this.ns4) {
            if (this.fmt.showF&&!node.nf)node.nf=node.el.document.images[node.id()+"nf"];
            if (this.fmt.showB&&!node.nb)node.nb=node.el.document.images[node.id()+"nb"];
        } else {
            if (this.fmt.showB&&!node.nb)node.nb=this.bw.dom? document.getElementById(node.id()+"nb"):document.all[node.id()+"nb"];
            if (this.fmt.showF&&!node.nf)node.nf=this.bw.dom? document.getElementById(node.id()+"nf"):document.all[node.id()+"nf"];
        }
    }
    
    this.draw = function()
    {
        if ( this.ver3 ) return;
        this.currTop = this.fmt.top;
        this.maxHeight =0;
 this.maxWidth=0;
        for (var i = 0; i < this.rootNode.children.length; i++)
            this.rootNode.children[i].draw(true);

        this.fmt.back.resize(this.maxWidth-this.fmt.left, this.maxHeight - this.fmt.top);
        if (this.ondraw != null) this.ondraw();
    }
    
    this.updateImages = function ( node )
    {
    this.getImgEl(node);
    if (!node.hasFather())
                {
                 var srcF = node.expanded? this.fmt.exF : this.fmt.clF;
                }
    else
                 {
                 var srcF = node.expanded? this.fmt.ex_pallocco : this.fmt.cl_pallocco;
                 }
        var srcF = this.fmt[node.hasChildren()? (node.hasFather? (node.expanded? "ex_pallocco":"cl_pallocco"):(node.expanded?"exF" : "clF" )):"iF"];
            //node.hasChildren()?(node.expanded?"exF":"clF"):"iF"];          //modifica da fare se non si vuole avere il pallino al primo livello 
                                                                             //per i nodi che non hanno figli
        var srcB = this.fmt[node.expanded? "exB" : "clB"];
        if (node.treeView.fmt.showB && node.nb && node.nb.src != srcB) node.nb.src = srcB;
        if (node.treeView.fmt.showF && node.nf && node.nf.src != srcF) node.nf.src = srcF;
    }
    
    this.expandNode = function( index )
    {
        var node = this.Nodes[index];
        var pNode=node.parentNode ? node.parentNode : null;
        if (!und(node) && node.hasChildren())
            {
            node.expanded = !node.expanded;
            this.updateImages(node);
            if (!node.expanded){
                node.hideChildren();
            }
            else 
                if (this.fmt.so) //se true si apre solo un ramo alla volta
                    for (var i=0;i < this.Nodes.length;i++){
                        this.Nodes[i].show(false);
                        if(this.Nodes[i] != node && this.Nodes[i].parentNode == pNode) {
                            this.Nodes[i].expanded=false;
                            this.updateImages(this.Nodes[i]);
                        }
                    }
            this.draw();
        }
       else if (!und(node) && !node.hasChildren())
           {

            this.draw();
           }
    }

   this.selectNode=function(index){
        var node=this.Nodes[index];
        if(!und(node)) this.selectedNode=node;
        node.draw();
    } 
    

    
    this.readNodes = function (nodes)
    {

        var ind = 0;
        var par = null;

        function readOne( arr , tree)
        {

            if (und(arr)) {

                           return;
                           }

            var i=0;var nodeID=0;

            if (arr[0]&&arr[0].id) {nodeID=arr[0].id;i++};

            var node = tree.addNode(new NTreeNode(tree, par, arr[i], url=arr[i+1] == null? "": arr[i+1], arr[i+2] == null? "": arr[i+2]));

         while (!und(arr[i+3]))
            {

                par = node;

                readOne(arr[i+3], tree);

                i++;
            }
        }

        if (und(nodes) || und(nodes[0]) || und(nodes[0][0])) return;

        for (var i = 0; i < nodes.length; i++){


            par = null;

            readOne(nodes[i], this);

        }

    }
    

    this.collapseAll = function( rd )
    {
        for (var i = 0; i < this.Nodes.length; i++){
            if (this.Nodes[i].parentNode != this.rootNode)
                this.Nodes[i].show(false);
            this.Nodes[i].expanded = false;
            this.updateImages(this.Nodes[i]);
        }
        if (rd) this.draw();
    }
    

    
    this.expandAll = function( rd )
    {
        for (var i = 0; i < this.Nodes.length; i++){
            this.Nodes[i].expanded = true;
            this.updateImages(this.Nodes[i]);
        }
        if (rd) this.draw();
    }

    this.init = function()
    {   

        this.readNodes(nodes);  

        this.rebuildTree();



    }
    this.init();

    return this;
}

function NTreeNode( treeView, parentNode , text, url, target)
{


    this.index = -1; this.treeView = treeView; this.parentNode = parentNode; this.text = text; this.url = url; this.target = target;
    this.expanded = false; this.children = [];
    this.level = function(){
        var node = this;
        var i = 0;
        while (node.parentNode != null){
            i++;
            node = node.parentNode;
        }
        return i;
    }
    this.hasChildren = function(){
        return this.children.length > 0;
    }
    this.hasFather = function() {
        var livello=this.level()
        return livello>0;
        }
    
    
    this.init = function(){
        var bw = this.treeView.bw;

        return this.treeView.ns4?
            '<layer id="'+this.id()+'d" left="0" top="0" z-index="'+this.index+10+'" visibility="hidden">'+this.getContent()+'</layer>'
            :'<div id="'+this.id()+'d" style="position:absolute;left:0;top:0;visibility:hidden;'+(bw.opera&&(bw.nver!=6)||bw.ie4?'width:1px':'')+';z-index:'+this.index+10+';">'+this.getContent()+'</div>';
    }
    
    
    
    this.getH = function()
        {
        var bw = this.treeView.bw;
        this.css=bw.dom||bw.ie4?this.el.style:this.el;this.doc=bw.dom||bw.ie4?document:this.css.document;
        this.h=this.el.offsetHeight||this.css.clip.height||this.doc.height||this.css.pixelHeight;
        return this.h;
        }

           

    this.getH1=function(){if(!this.h)this.h=this.treeView.ns4 ? this.el.clip.height:this.treeView.bw.dom&&!this.treeView.bw.operaOld? this.el.firstChild.offsetHeight:this.el.offsetHeight;return this.h}       

    this.getW=function(){if(!this.w)this.w=this.treeView.ns4 ? this.el.clip.width:this.treeView.bw.dom&&!this.treeView.bw.operaOld? this.el.firstChild.offsetWidth:this.el.offsetWidth;return this.w}
    this.id = function(){return 'nt'+this.treeView.name+this.index;}
    this.getContent = function(){
        function itemSquare(node){
                var img=node.treeView.fmt[node.hasChildren()? (node.hasFather? (node.expanded? "ex_pallocco":"cl_pallocco"):(node.expanded?"exF" : "clF" )):"iF"]; 
                var w = node.treeView.fmt.Fw; var h = node.treeView.fmt.Fh;
                var img = "<img id=\""+node.id()+"nf\" name=\""+node.id()+"nf\" src=\"" + img + "\" width="+w+" height="+h+" border=0>"
                img = node.hasChildren()?'<a href="javascript:CTExpand(\''+node.treeView.name+'\','+node.index+')">'+img+'</a>':img;
                return "<td valign=\"middle\" width=\""+w+"\">"+img+"</td>\n";
        }
        function buttonSquare(node){
            var img=node.treeView.fmt[node.expanded? "exB" : "clB"]; 
            var w=node.treeView.fmt.Bw;var h=node.treeView.fmt.Bh;
            return '<td valign=\"middle\" width="'+w+'"><a href="javascript:CTExpand(\''+node.treeView.name+'\','+node.index+')"><img name=\''+node.id()+'nb\' id=\''+node.id()+'nb\' src="' + img + '" width="'+w+'" height="'+h+'" border=0></a></td>\n';
        }
        function blankSquare(node, ww){
            var img = node.treeView.fmt.iE;
            return "<td width=\""+ww+"\"><img src=\"" + img + "\" width="+ww+" height=1 border=0></td>\n"
        }

        var s = '';
        var ll = this.level();
        s +='<table cellpadding='+this.treeView.fmt.pg+' cellspacing='+this.treeView.fmt.sp+'border=0 class="cls'+this.treeView.name+'_back'+ll+'"><tr>';

        var idn = this.treeView.fmt.idn(ll);
        if (idn > 0)
            s += blankSquare(this, idn);
        if ( this.treeView.fmt.showB)
            s += this.hasChildren() ? buttonSquare(this) : blankSquare(this, this.treeView.fmt.Ew);
        if ( this.treeView.fmt.showF)
            s += itemSquare(this);
        var n = this.treeView.name;
        s += '<td nowrap=\"1\"><a class="';
        
        if (this.index==indice_cookie)
             {s+=this.treeView.fmt.selected_item_style;}
        else {s+=this.treeView.fmt.nstyle(ll);}

        if (this.index==indice_cookie) 
             {s+='" onclick="javascript:NTrees[\''+this.treeView.name+'\'].expandNode('+this.index+')">'+this.text+'</a></td></tr></table>';}
        else
        {
        if (this.hasChildren())
           if (this.url=="niente")
              s+='" href="javascript:NTrees[\''+this.treeView.name+'\'].expandNode('+this.index+');"><font color="'+this.treeView.fmt.nonexistentcolor+'">'+this.text+'</font></a></td></tr></table>';
           else s+='" href="javascript:NTrees[\''+this.treeView.name+'\'].expandNode('+this.index+');">'+this.text+'</a></td></tr></table>';


        else if (!this.hasChildren())  //deve avere il link ma non espandere il nodo

//da qui modifica per poter inserire link futuri non esistenti
        {
        if (this.url=="niente")
          {
          s+='"><font color="'+this.treeView.fmt.nonexistentcolor+'">'+this.text+'</font></a></td></tr></table>';
          }
       else
          {
          s+='" href="'+this.url+'" target="'+this.target+'" >'+this.text+'</a></td></tr></table>';
          }
        }
//a qui
        
               

        } 
        return s;
    }
    this.moveTo = function( x, y )
    {if (this.treeView.ns4)this.el.moveTo(x,y);
    else
    {this.el.style.left=x+_px;this.el.style.top=y+_px;}}
    
    this.show=function(sh){if (this.visible == sh)return;this.visible=sh;var vis=this.treeView.ns4 ? (sh ? 'show': 'hide') : (sh ? 'visible': 'hidden');if (this.treeView.ns4)this.el.visibility=vis;else this.el.style.visibility=vis;}
    this.hideChildren = function(){
        this.show(false);
        for (var i = 0; i < this.children.length; i++)
            this.children[i].hideChildren();
    }
    this.draw = function()
    {
        var ll = this.treeView.fmt.left;

        var left=this.treeView.bw.operaOld? this.treeView.fmt.left + this.treeView.operaLeft: this.treeView.fmt.left; 
        var top=this.treeView.bw.operaOld? this.treeView.currTop + this.treeView.operaTop:this.treeView.currTop; 
        this.moveTo(left, top);
var w = this.getW();
        this.show(true);
        
        if (ll+w > this.treeView.maxWidth)
            this.treeView.maxWidth = ll+w;
        
        this.treeView.updateImages(this);
        this.treeView.currTop += this.getH();
        if (this.treeView.currTop > this.treeView.maxHeight)
            this.treeView.maxHeight = this.treeView.currTop;
        if (this.expanded && this.hasChildren() )
            {for (var i = 0; i < this.children.length; i++)
                this.children[i].draw();}
     }
}



function NTreeBack( aleft, atop, color, name )
{   this.bw=new browser_check();
    this.ver3=this.bw.ver3; 
    this.ns4=this.bw.ns4;
    this.left = aleft;
    this.top = atop;
    this.name = name;
    this.color = color;
     

    this.resize=function(w,h)
       {if (this.ns4){this.el.resizeTo(w,h);}
       else{
          this.el.width=w;
          this.el.height=h;
           }
       };
       
   
    this.init=function(){

      
          


          if(this.ns4){
              var bgc=this.color == ""? "" : ' bgcolor="'+this.color+'" ';
              document.write('<layer '+bgc+' top="'+this.top+'" left="'+this.left+'" id="'+this.name+'" z-index="0"></layer>');
              this.el=document.layers[this.name];} 
          else 
              {
              var bgc=this.color == ""? "" : " background-color:"+this.color+";";
           document.write('<div id="'+this.name+'" style="'+bgc+'position:absolute;z-index:0;top:'+this.top+'px;left:'+this.left+'px"></div>');   
           this.el=document.all? document.all[this.name] : document.getElementById(this.name);}
           };

    this.init();
}

function none(){}


function und( val )
{
    return typeof(val) == 'undefined';
}



window.oldCTOnLoad=window.onload;




function CTOnLoad(){ 

var bw=new bw_check();
if (bw.operaOld)window.operaResizeTimer=setTimeout('resizeHandler()',1000);
if (typeof(window.oldCTOnLoad)=='function') window.oldCTOnLoad();
if (bw.ns4|| bw.operaOld) window.origWidth=window.innerWidth; window.origHeight=window.innerHeight;


if (bw.operaOld){ 
    if (!window.operaResizeTimer) resizeHandler(); 
        for (var tree in NTrees){  
              for (var j=0;j<NTrees[tree].Nodes.length;j++){  
                    
                        var l=NTrees[tree].fmt.back.el.offsetParent.offsetLeft;   
                        var t=NTrees[tree].fmt.back.el.offsetParent.offsetTop;   
                        var par=NTrees[tree].fmt.back.el.offsetParent;   
                        while (par!=document.body){   
                                l +=par.offsetLeft;   
                                t +=par.offsetTop;
                                par=par.offsetParent;   
                        }   
                        NTrees[tree].operaTop=t;   
                        NTrees[tree].operaLeft=l;  
                     
                        if (NTrees[tree].Nodes[j].visible)
                          NTrees[tree].Nodes[j].el.style.visibility='visible';  
              }  
              NTrees[tree].draw(); 
        } 
  }
if (typeof(window.oldCTPOnLoad)=='function') 
    window.oldCTPOnLoad(); 
if (bw.ns4) window.onresize=resizeHandler;
} 

window.onload=CTOnLoad;
function resizeHandler() {
    if (window.reloading) return;
    if (!window.origWidth){
        window.origWidth=window.innerWidth;
        window.origHeight=window.innerHeight;
    }
    var reload=window.innerWidth != window.origWidth || window.innerHeight != window.origHeight;
    window.origWidth=window.innerWidth;window.origHeight=window.innerHeight;
    if (window.operaResizeTimer)clearTimeout(window.operaResizeTimer);
    if (reload) {window.reloading=1;document.location.reload();return};
    if (new bw_check().operaOld){window.operaResizeTimer=setTimeout('resizeHandler()',500)};
}
function CTExpand(name, index){window.NTrees[name].expandNode(index)}


var NTrees;
if (typeof(NTrees) == 'undefined')
    NTrees = new Array();
function CTExpand(name, index){window.NTrees[name].expandNode(index)}