if (!Bs_Objects)
{
    var Bs_Objects = [];
}
;

function Bs_Tree()
{
    this._id;
    this._objectId;
    this.autoCollapse = false;
    this.lookAhead = 2;
    this.captionBgColor = "white";
    this.linkStyle;
    this.divStyle = 'font-family: Arial, Helvetica, sans-serif; font-size: 11px;';
    this.showPseudoElement = false;
    this.useCheckboxSystem = false;
    this.checkboxSystemWalkTree = 3;
    this.checkboxSystemIfPartlyThenFull = true;
    this.checkboxSystemImgDir;
    this.checkboxSystemGuiNochange;
    this.useRadioButton = false;
    this.radioButtonName;
    this.imageDir;
    // = '../image/tree/win2k/';
    this.imageHeight = 16;
    this.rootCaption;
    //根结点标题，Added by dubf on 2004/4/23
    this.rootUrl;
    //根结点Url，Added by dubf on 2004/4/27
    this.rootTarget;
    //根结点Target，Added by dubf on 2004/4/27
    this.showRootUrl = false;
    //是否显示根结点Url，Added by dubf on 2004/4/27
    this.useFolderIcon = true;
    this.useLeaf = true;
    this.walkTree = true;
    this.useAutoSequence = true;
    this.draggable = false;
    this._clearingHouse = new Array;
    this._pseudoElement;
    this._currentActiveElement;
    this._elementSequence = 0;
    this._errorArray;
    this.stopWatch;
    this._constructor = function()
    {
        this._id = Bs_Objects.length;
        //alert(this._id);
        Bs_Objects[this._id] = this;
        this._objectId = "Bs_Tree_" + this._id;
        var a = [];
        a['id'] = 'pseudoElement001';
        a['caption'] = "root";
        a['url'] = "";
        a['target'] = "";
        a['isOpen'] = true;
        this._pseudoElement = this._createTreeElement(a, 0);
    }

    //Added by dubf on 2004/4/23，为了设置根结点属性
    this.setRoot = function()
    {
        if (typeof(this._pseudoElement) == 'undefined') return;
        //alert(this.rootCaption);
        this._pseudoElement['caption'] = this.rootCaption;
        if (this.showRootUrl)
        {
            this._pseudoElement['url'] = this.rootUrl;
            this._pseudoElement['target'] = this.rootTarget;
        }
    }

    this.initByArray = function(arr)
    {
        for (var i = 0; i < arr.length; i++)
        {
            var e = this._createTreeElement(arr[i], 1);
            if (e == false)
            {
                return false;
            }

            this._pseudoElement.addChild(e);
        }
        return true;
    }

    this.getActiveElement = function()
    {
        if (typeof(this._currentActiveElement) != 'undefined')
            return this._currentActiveElement;
        return false;
    }

    this.setActiveElement = function(treeElement)
    {
        this._currentActiveElement = treeElement;
    }

    this._createTreeElement = function(arr, level)
    {
        if (typeof(level) == 'undefined') level = 1;
        var e = new Bs_TreeElement();
        var status = e.initByArray(arr, this, level);
        if (!status)
        {
            this._addError(e.getLastError());
            return false;
        }
        this._clearingHouse[e.id] = e;
        if (arr['children'])
        {
            if ((this.useCheckboxSystem && (this.checkboxSystemWalkTree >= 2))
                    || e.isOpen
                    || ((this.lookAhead + 2) > level)
                    || (this.lookAhead == -1)
                    || ((typeof(e.parent) == 'object') && (e.parent.isOpen)))
            {
                for (var i = 0; i < arr['children'].length; i++)
                {
                    var newE = this._createTreeElement(arr['children'][i], level + 1);
                    if (!newE) return false;
                    e.addChild(newE);
                }

            }
            else
            {
                e._undoneChildren = arr['children'];
            }
        }
        return e;
    }

    this.getElement = function(elementId)
    {
        if (elementId == 0) return this._pseudoElement;
        if (typeof(this._clearingHouse[elementId]) == 'object')
        {
            return this._clearingHouse[elementId];
        }
        else
        {
            return false;
        }
    }

    this.removeElement = function(elementId)
    {
        if (typeof(this._clearingHouse[elementId]) == 'undefined') return false;
        var elm = this._clearingHouse[elementId];
        if ((typeof(elm.parent) == 'object') && (typeof(elm.parent._children) == 'object'))
        {
            for (var i = 0; i < elm.parent._children.length; i++)
            {
                if (elm.parent._children[i].id == elementId)
                {
                    elm.parent._children.deleteItem(i);
                    break;
                }
            }
        }
        this._clearingHouse.deleteItemHash(elementId);
        for (var i = 0; i < elm._children.length; i++)
        {
            this._clearingHouse.deleteItemHash(elm._children[i].id);
        }

        if ((typeof(elm.parent) == 'object') && (elm.parent._isOutrendered))
        {
            elm.parent.render(true, true);
        }
        return true;
    }

    this.draw = function()
    {
        var content = this._pseudoElement.render();
        document.writeln(content[0]);
        eval(content[1]);
    }

    this.toHtml = function()
    {
        return this._pseudoElement.render();
    }

    this.executeOnElement = function(id, func, params)
    {
        if (this._clearingHouse[id])
        {
            if (this._clearingHouse[id][func])
            {
                if (params)
                {
                    switch (params.length)
                            {
                        case 1:
                            return this._clearingHouse[id][func](params[0]);
                            break;
                        case 2:
                            return this._clearingHouse[id][func](params[0], params[1]);
                            break;
                        case 3:
                            return this._clearingHouse[id][func](params[0], params[1], params[2]);
                            break;
                        case 4:
                            return this._clearingHouse[id][func](params[0], params[1], params[2], params[3]);
                            break;
                    }
                }
                else
                {
                    return this._clearingHouse[id][func]();
                }
            }
        }
        return;
    }

    this.getJavascriptCode = function()
    {
        return this._pseudoElement.getJavascriptCode('a', true);
    }

    this.elementToggleOpenClose = function(id)
    {
        this._clearingHouse[id].toggleOpenClose();
    }

    this.elementOpenWalkUp = function(id)
    {
        if (typeof(this._clearingHouse[id]) != 'undefined')
        {
            var elm = this._clearingHouse[id];
            elm.open(true);
            if (typeof(elm.parent) != 'undefined')
                this.elementOpenWalkUp(elm.parent.id);
        }
        else
        {
            return false;
        }
        return true;
    }

    this.elementCloseWalkUp = function(id)
    {
        if (typeof(this._clearingHouse[id]) != 'undefined')
        {
            var elm = this._clearingHouse[id];
            elm.close(true);
            if (typeof(elm.parent) != 'undefined')
                this.elementCloseWalkUp(elm.parent.id);
        }
        else
        {
            return false;
        }
        return true;
    }

    this.elementCloseWalkDown = function(id)
    {
        if (typeof(id) == 'undefined')
        {
            var elm = this._pseudoElement;
        }
        else if (typeof(this._clearingHouse[id]) != 'undefined')
        {
            var elm = this._clearingHouse[id];
            elm.close(true);
        }
        else
        {
            return false;
        }
        if (typeof(elm._children) != 'undefined')
        {
            for (var i = 0; i < elm._children.length; i++)
            {
                this.elementCloseWalkDown(elm._children[i].id);
            }
        }
        return true;
    }

    this.elementOpen = function(id)
    {
        if (typeof(this._clearingHouse[id]) != 'undefined')
        {
            this._clearingHouse[id].open();
        }
    }

    this.elementClose = function(id)
    {
        this._clearingHouse[id].close();
    }

    this.openPath = function(data, valueType)
    {
        var elm = this.getElementByCaptionPath(data);
        if (elm == false) return false;
        this.elementOpenWalkUp(elm.id);
        return true;
    }

    this.getElementByCaptionPath = function(data)
    {
        var elm = this._pseudoElement;
        for (var i = 0; i < data.length; i++)
        {
            var newElm = null;
            for (var j = 0; j < elm._children.length; j++)
            {
                if (elm._children[j].caption == data[i])
                {
                    newElm = elm._children[j];
                    elm = newElm;
                    if (typeof(elm._undoneChildren) == 'object')
                    {
                        for (var k = 0; k < elm._undoneChildren.length; k++)
                        {
                            var newE = this._createTreeElement(elm._undoneChildren[k], elm._level + 1);
                            elm.addChild(newE);
                        }
                        elm._undoneChildren = false;
                    }
                    break;
                }
            }

            if (newElm == null) return false;
        }
        return newElm;
    }

    this.elementCheckboxEvent = function(id, value)
    {
        this._clearingHouse[id].checkboxEvent(value);
    }

    this.debugDumpTree = function(elm, indent)
    {
        if (typeof(elm) == 'undefined')
        {
            elm = this._pseudoElement;
            indent = '';
            var firstCall = true;
        }

        var ret = '';
        if (typeof(elm._children) == 'object')
        {
            for (var i = 0; i < elm._children.length; i++)
            {
                ret += indent + i + ': ' + elm._children[i].id + ': ' + elm._children[i].caption + "\n";
                ret += this.debugDumpTree(elm._children[i], indent + '  ');
            }
        }

        if (firstCall)
        {
            alert(ret);
        }
        else
        {
            return ret;
        }
    }

    this._addError = function(str)
    {
        if (typeof(this._errorArray) == 'undefined')
        {
            this._errorArray = new Array(str);
        }
        else
        {
            this._errorArray[this._errorArray.length] = str;
        }
    }

    this.getLastError = function()
    {
        if (typeof(this._errorArray) != 'undefined')
        {
            if (this._errorArray.length > 0)
            {
                return this._errorArray[this._errorArray.length - 1];
            }
        }
        return false;
    }

    this.old_drawInto = function(id)
    {
        var content = this._pseudoElement.render();
        var e = document.getElementById(id);
        if (e)
        {
            e.innerHTML = content[0];
            if ('' != content[1])    eval(content[1]);
        }
    }

    this._imgPreload = function()
    {
        var id = this.globalId;
        var e = document.getElementById(id);
        var ii = 0;
        var outTemp = new Array();
        outTemp[ii++] = '<img src="' + this.imageDir + 'line1.gif" border="0" style="display:none;">';
        outTemp[ii++] = '<img src="' + this.imageDir + 'line2.gif" border="0" style="display:none;">';
        outTemp[ii++] = '<img src="' + this.imageDir + 'line3.gif" border="0" style="display:none;">';
        outTemp[ii++] = '<img src="' + this.imageDir + 'minus1.gif" border="0" style="display:none;">';
        outTemp[ii++] = '<img src="' + this.imageDir + 'minus2.gif" border="0" style="display:none;">';
        outTemp[ii++] = '<img src="' + this.imageDir + 'minus3.gif" border="0" style="display:none;">';
        outTemp[ii++] = '<img src="' + this.imageDir + 'plus1.gif" border="0" style="display:none;">';
        outTemp[ii++] = '<img src="' + this.imageDir + 'plus2.gif" border="0" style="display:none;">';
        outTemp[ii++] = '<img src="' + this.imageDir + 'plus3.gif" border="0" style="display:none;">';
        outTemp[ii++] = '<img src="' + this.imageDir + 'line3.gif" border="0" style="display:none;">';
        outTemp[ii++] = '<img src="' + this.imageDir + 'empty.gif" border="0" style="display:none;">';
        outTemp[ii++] = '<img src="' + this.imageDir + 'leaf.gif" border="0" style="display:none;">';
        outTemp[ii++] = '<img src="' + this.imageDir + 'folderClosed.gif" border="0" style="display:none;">';
        outTemp[ii++] = '<img src="' + this.imageDir + 'folderOpen.gif" border="0" style="display:none;">';
        if (e) e.innerHTML = outTemp.join('');
    }

    this._afterImgPreload = function()
    {
        var id = this.globalId;
        var content = this._pseudoElement.render();
        var e = document.getElementById(id);
        if (e)
        {
            e.innerHTML = content[0];
            if ('' != content[1])
            {
                eval(content[1]);
            }
        }
    }

    this.drawInto = function(id)
    {
        this.globalId = id;
        setTimeout('Bs_Objects[' + this._id + ']._imgPreload()', 0);
        setTimeout('Bs_Objects[' + this._id + ']._afterImgPreload()', 500);
    }

    this._constructor();
}