/*--------------------------------------------------|

| tTree 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, title, target, icon, iconOpen, open, icon2, iconOpen2, icon2s, iconOpen2s) {

	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.icon2 = icon2;

	this.iconOpen2 = iconOpen2;
	
	this.icon2_s = icon2s;

	this.iconOpen2_s = iconOpen2s;

	this._io = open || false;

	this._is = false;

	this._ls = false;

	this._hc = false;

	this._ai = 0;
	
	this.lev = 0;

	this._p;

};



// Tree object

function tTree(objName) {

	this.config = {

		target					: null,

		folderLinks			: true,

		useSelection		: true,

		useCookies			: true,

		useLines				: false,

		useIcons				: true,

		useStatusText		: true,

		closeSameLevel	: false,

		inOrder					: false,
		
		folderBackground : true,
		
		folderColor 		: '#edeef3',
		
		folderActiveColor : '#608fcd'
		

	}

	this.icon = {

		root				: 'data/base.gif',

		folder			: 'data/folder.gif',

		folderOpen	: 'data/folderopen.gif',
		
		folder1			: 'data/corner.png',

		folderOpen1	: 'data/corner-up.png',
		
		menu_down		: 'data/menu_down.png',

		menu_up			: 'data/menu_up.png',
		
		menu_down_s	: 'data/menu_down_s.png',

		menu_up_s		: 'data/menu_up_s.png',

		node				: 'data/page.gif',

		empty				: 'data/empty.gif',

		line				: 'data/line.gif',

		join				: 'data/join.gif',

		joinBottom	: 'data/joinbottom.gif',

		plus				: 'data/plus.gif',

		plusBottom	: 'data/plusbottom.gif',

		minus				: 'data/minus.gif',

		minusBottom	: 'data/minusbottom.gif',

		nlPlus			: 'data/nolines_plus.gif',

		nlMinus			: 'data/nolines_minus.gif'

	};

	this.obj = objName;

	this.aNodes = [];

	this.aIndent = [];

	this.root = new Node(-1);

	this.selectedNode = null;

	this.selectedFound = false;

	this.completed = false;
	
	this.plus_dir = '';

};



// Adds a new node to the node array

tTree.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, this.icon.menu_down, this.icon.menu_up, this.icon.menu_down_s, this.icon.menu_up_s);

};



// Open/close all nodes

tTree.prototype.openAll = function() {

	this.oAll(true);

};

tTree.prototype.closeAll = function() {

	this.oAll(false);

};



// Outputs the tree to the page

tTree.prototype.toString = function() {

	var str = '<div class="tTree">\n';

	if (document.getElementById) {

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

		str += this.addNode(this.root, -1);

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

	str += '</div>';

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

	this.completed = true;

	//alert (str);
	return str;

};



// Creates the tree structure

tTree.prototype.addNode = function(pNode, lev) {
	lev+=1;

	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, lev);

			if (cn._ls) break;

		}

	}

	return str;

};



// Creates the node icon, url and text

tTree.prototype.node = function(node, nodeId, lev) {

  var str = '<div ' + (lev==1 ? 'style="background-image: url(\''+this.plus_dir + 'data/repeat-y.gif\');background-repeat: repeat-y;background-position: center top;"' : '') + ' align="center" class="tTree">' + this.indent(node, nodeId);
	
	//_hc - has children ?

	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;

		}
		
		node.lev = lev;
		
		if (lev!=0){


    str += '<div id="di' + this.obj + nodeId + '" class="ttshow' + lev + (node._is ? 's' : '') + '" '+ (node._hc ? 'style="cursor:pointer;' + ((this.config.folderBackground && lev > 1) ? 'background-color:' + this.config.folderColor : '') + '"': '') + ' align="left" ' + (node._hc ? 'onclick="' + this.obj + '.o(' + nodeId + ');"' : '')+
					 '><table width="100%" cellspacing="0" cellpadding="'+ (lev !=1 ? '2' : '0') +'" border="0"><tr>';
    
		str +=  '<td width="'+((Math.max(lev, 2) - 1) * 5)+'"></td>' +
						(lev!=1 ? '<td height="100%" width="20" align="left" valign="top"><img id="i' + this.obj + nodeId + '" src="' + ((node._io) ? this.plus_dir + node.iconOpen : this.plus_dir + node.icon) + '" alt="" /></td>' : '')
						+ '<td align="left" valign="middle">';
						//(node._hc ? '</a>' : '');
						
		}

	}

  if (lev!=0){
  
	if (node.url) {

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


	}

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

		str += '<a href="javascript: ' + this.obj + '.o(' + nodeId + ');" class="' + ((this.config.useSelection) ? ((node._is ? 'nodeSel' + lev: 'node' + lev)) : 'node' + lev) + '">';
	

		str += node.name;

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

	if (lev==1){
		node.icon2 = this.icon.folder1;
		node.iconOpen2 = this.icon.folderOpen1;
	}
	

	str += '</td>' +
	
						(lev!=0 ? '<td style="margin:0px;" align="right" valign="top" width="30">' +
						(node._hc ?
            '<img style="padding:0px;" id="il' + this.obj + nodeId + '" src="' + ((node._io) ? ((node._is && lev > 1) ? this.plus_dir + node.iconOpen2_s : this.plus_dir + node.iconOpen2) : ((node._is && lev > 1) ? this.plus_dir + node.icon2_s : this.plus_dir + node.icon2)) + '" alt="" /> ' : '<div style="cursor:default;height:22px;width:24px"></div>') + '</td>' : '') +
	
				 '</tr></table></div>';
	str += '</div>';
	
	}

	if (node._hc) {
	  // Dodaje wszystkie dzieci

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

		str += this.addNode(node, lev);

		str += '</div>';

	}

	this.aIndent.pop();
	
	if (lev==1)
	  str+= '<div class="ttshow-mini"></div><br />';

	return str;

};



// Adds the empty and line icons

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

	var str = '';

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

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

			str += '<img style="display:none;" 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 style="display:none;" 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 style="display:none;" src="' + ( (this.config.useLines) ? ((node._ls) ? this.icon.joinBottom : this.icon.join ) : this.icon.empty) + '" alt="" />';

	}

	return str;

};



// Checks if a node has any children and if it is the last sibling

tTree.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

tTree.prototype.getSelected = function() {

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

	return (sn) ? sn : null;

};


tTree.prototype.turnoffcursor = function() {
	var sn = document.getElementById("s" + this.obj + this.selectedNode);
  //alert(sn.style.cursor);
	if (sn) sn.style.cursor="pointer";
	//alert(sn.style.cursor);

};



// Highlights the selected node

tTree.prototype.s = function(id) {

	if (!this.config.useSelection) return;

	var cn = this.aNodes[id];
	var old_n = this.aNodes[this.selectedNode];
	
 	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" + old_n.lev;
			
			eOld = document.getElementById("di" + this.obj + this.selectedNode);

			eOld.className = "ttshow" + old_n.lev;
			
			// Zmienic strzalki gdy katalog
			if (old_n._hc && old_n.lev>1) {
			  if (this.config.folderBackground){
			    eOld.style.backgroundColor = this.config.folderColor;
			  }
			  
			  if (document.getElementById('il' + this.obj + this.selectedNode)) {
					elIcon	= document.getElementById('il' + this.obj + this.selectedNode);
					elIcon.src = (old_n._io) ? this.plus_dir + this.aNodes[this.selectedNode].iconOpen2 : this.plus_dir + this.aNodes[this.selectedNode].icon2;
				}
			}

		}

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

		eNew.className = "nodeSel" + cn.lev;
		
		eNew.style.cursor = "progress";

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

		eNew.className = "ttshow" + cn.lev + "s";
		
    // Zmienic strzalki gdy katalog

    if (cn._hc && cn.lev>1) {
        if (this.config.folderBackground){
			    eNew.style.backgroundColor = this.config.folderActiveColor;
			  }
			  
			  if (document.getElementById('il' + this.obj + id)) {
					elIcon	= document.getElementById('il' + this.obj + id);
					elIcon.src = (cn._io) ? this.plus_dir + this.aNodes[id].iconOpen2_s : this.plus_dir + this.aNodes[id].icon2_s;
				}
			}


		this.selectedNode = id;

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

	}

};



// Toggle Open or close

tTree.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();

};

// Toggle Open or close

tTree.prototype.oc = function(nId) {


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

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

				nId=n;

				break;

			}

		}
	
	this.o(nId);

};



// Open or close all nodes

tTree.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

tTree.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

tTree.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

tTree.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)

tTree.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);

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

		if (document.getElementById('il' + this.obj + id)) {
			elIcon	= document.getElementById('il' + this.obj + id);
			
			if (elIcon)
			if (id == this.selectedNode && cn.lev>1)
				elIcon.src = (status) ? this.plus_dir + this.aNodes[id].iconOpen2_s  : this.plus_dir + this.aNodes[id].icon2_s;
			else
				elIcon.src = (status) ? this.plus_dir + this.aNodes[id].iconOpen2 : this.plus_dir + this.aNodes[id].icon2;
		}

	}

	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

tTree.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

tTree.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

tTree.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

tTree.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

tTree.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;

	}

};