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





| 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, 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				: true,





		useIcons				: true,





		useStatusText		: false,





		closeSameLevel	: false,





		inOrder					: false





	}





	this.icon = {





		root				: '/img_new/pix.gif',





		folder			: '/img/folder.gif',





		folderOpen	: '/img/folderopen.gif',





		node				: '/img/page.gif',





		empty				: '/img/empty.gif',





		line				: '/img/line.gif',





		join				: '/img/join.gif',





		joinBottom	: '/img/joinbottom.gif',





		plus				: '/img/plus.gif',





		plusBottom	: '/img/plusbottom.gif',





		minus				: '/img/minus.gif',





		minusBottom	: '/img/minusbottom.gif',





		nlPlus			: '/img/nolines_plus.gif',





		nlMinus			: '/img/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;





		}





		if(node.icon!="img_new/pix.gif") 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 + '"';





		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="" />';





		(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="" />';





	}





	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;





	}





};