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

// Node object
function Node(id, pid, level, name, url, title, target, icon, iconOpen, open) {
    this.id = id;
    this.pid = pid;
    this.level = level;
    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, ctxRoot) {
    this.config = {
        target              : null,
        folderLinks         : true,
        useSelection        : true,
        useCookies          : false,
        useLines            : false,
        useIcons            : false,
        useStatusText       : true,
        closeSameLevel      : true,
        inOrder             : true
    }
    this.icon = {
        root                : ctxRoot + '/resources/images/menu-tree/base.gif',
        folder              : ctxRoot + '/resources/images/menu-tree/folder.gif',
        folderOpen          : ctxRoot + '/resources/images/menu-tree/folderopen.gif',
        node                : ctxRoot + '/resources/images/menu-tree/page.gif',
        empty               : ctxRoot + '/resources/images/menu-tree/empty.gif',
        line                : ctxRoot + '/resources/images/menu-tree/line.gif',
        join                : ctxRoot + '/resources/images/menu-tree/join.gif',
        joinBottom          : ctxRoot + '/resources/images/menu-tree/joinbottom.gif',
        plus                : ctxRoot + '/resources/images/menu-tree/plus.gif',
        plusBottom          : ctxRoot + '/resources/images/menu-tree/plusbottom.gif',
        minus               : ctxRoot + '/resources/images/menu-tree/minus.gif',
        minusBottom         : ctxRoot + '/resources/images/menu-tree/minusbottom.gif',
        nlPlus              : ctxRoot + '/resources/images/menu-tree/nolines_plus.gif',
        nlMinus             : ctxRoot + '/resources/images/menu-tree/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, level, name, url, title, target, icon, iconOpen, open) {
    this.aNodes[this.aNodes.length] = new Node(id, pid, level, 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();
            //alert( document.cookie + '\ngetCookie : ' + this.getCookie('cs' + this.obj) );
        }
        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;
};

function jsChngImgOn(nodeid) {
    eval("img_" + nodeid).src = "/resources/images/kai/top-menu/" + nodeid + "_left_on.gif";
}
function jsChngImgOut(nodeid) {
    eval("img_" + nodeid).src = "/resources/images/kai/top-menu/" + nodeid + "_left.gif";
}

// Creates the node icon, url and text
// ¸Þ´º±¸Á¶ ÄÚµå »ý¼º - Çʼö
dTree.prototype.node = function(node, nodeId) {
    var str = '';

    /*
    alert(
    '³ëµå¸í : ' + node.name + '\n³ëµå ID : ' + nodeId + '\n³ëµå PID : ' + node.pid + 
        '\n·çÆ® ³ëµå : ' + this.root.id + '\n³ëµå _io : ' + node._io + '\n³ëµå _is : ' + node._is + 
        '\n³ëµå _ls : ' + node._ls + '\n³ëµå _hc : ' + node._hc + '\n³ëµå _ai : ' + node._ai);
    */
    str += '<div class="dTreeNode" id="left-menu-level-' + node.level + '">' + this.indent(node, nodeId);
    str += '<span id="i' + this.obj + nodeId + '" alt=""></span>';

    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 (node.level == 1)
            if (this.config.useStatusText) str += ' onmouseover="jsChngImgOn(' + node.id + ');window.status=\'' + node.name + '\';return true;" onmouseout="jsChngImgOut(' + node.id + ');window.status=\'\';return true;" ';
        else
            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 += '  onFocus="blur()">';
    }
    else if ((!this.config.folderLinks || !node.url) && node._hc && node.pid != this.root.id) {
        str += '<a id="s' + this.obj + nodeId + '" href="javascript: ' + this.obj + '.o(' + nodeId + ');" class="node"  onFocus="blur()">';
    }
    // str += node.name + ' (' + node.id + ',' + node.pid + ')';
    // str += node.name;
    str += '<img src="/resources/images/kai/top-menu/' + node.id + '_left.gif" alt="' + node.name + '" name="img_' + node.id + '" />';

    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>';
    }
    str += "\n";

    this.aIndent.pop();
    return str;
};

// Adds the empty and line icons
// ÁÂÃø¸Þ´º Àε§Æ® - Çʼö
dTree.prototype.indent = function(node, nodeId) {
    var str = '';
    if (this.root.id != node.pid) {
        if (node._hc) {
            str += '<span id="j' + this.obj + nodeId + '" /></span>';
        }
    }
    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);
            if (eOld != null)
                eOld.className = "node";
        }
        eNew = document.getElementById("s" + this.obj + id);
        if (eNew != null)
            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;
                /* ÇöÀç ¼±ÅÃÇÑ ¸Þ´º ½ºÅ¸ÀÏ Ç¥½Ã */
                document.getElementById("smenuTree"+nId).className = "nodeSel";
                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() - 60*60*24*1*1000);
    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;
    }
};