/** 
* @fileoverview 
* 此文件定义了CTRSTree对象，完成树形结构的构造<BR>
*  Copyright: 		www.trs.com.cn<BR>
*  Company: 		TRS Info. Ltd.<BR>
*  Author:			CH<BR>
*  Created:		2004-09-24 08:38<BR>
*  Vesion:			1.0<BR>
*  Last EditTime:	2004-11-24/2004-11-24<BR>
*	Update Logs:<BR>
*		CH@2004-09-24 Created File<BR>
*	Note:<BR>
*		<BR>
*	Depends:<BR>
*		CTRSTree_res_default.js<BR>
*	Examples:<BR>
*		../test/CTRSTree_test.html<BR>
* @author CH cao.hui@trs.com.cn
* @version 1.o
*/
/**
* CTRSTree构造函数
* @class CTRSTree类
* @constructor
* @param {String} _sInitCheckValues 初始化选择型树形结构的ID序列(可以不传入)
* @param {Object} _oTRSTreeRes TRSTree资源对象，默认为TREE_ICON_RES
* @param {String} _sTarget 树中结点点击操作的Target
* @param {String} _sDisabledIds 禁用的ID序列
* @return CWCMAction的一个实例
*/
function CTRSTree(_sInitCheckValues, _oTRSTreeRes, _sTarget, _sDisabledIds) {
	//Define CTRSTree's Properties
	/** @private */
	this.arRootTRSItems = [];
	/** @private */
	this.hTRSItems = {};
	/** @private */
	this.oTRSTreeRes = _oTRSTreeRes || TREE_ICON_RES;
	/** @private */
	this.sTarget = _sTarget || this.oTRSTreeRes['target'];
	this.nType = TRSTREE_TYPE_NORMAL;
	/** @private */
	this.arDisabledId = new Array();
	if (_sDisabledIds) this.arDisabledId = _sDisabledIds.split(",");

	/** @private */
	this.oSelectedItem = null;

	/** @private */
	this.sId = m_arTRSTrees.length;
	m_arTRSTrees[this.sId] = this;

	this.setInitCheckValues = CTRSTree_setInitCheckValues;
	this.setInitCheckValues(_sInitCheckValues);

	//Define CTRSTree's Methods
	/** @private */
	this.onMouseOver = function(_sItemId) {
		this.hTRSItems[_sItemId].updateWindowStatus();
	}

	/** @private */
	this.onMouseOut = function(_sItemId) {
		this.hTRSItems[_sItemId].updateWindowStatus(true);
	}

	/** @private */
	this.select = function(_sItemId) { return this.hTRSItems[_sItemId].select(); };

	this.addItem = TRSTree_addItem;
	this.addRootItem = TRSTree_addRootItem;
	this.toString = TRSTree_toString;
	this.draw = TRSTree_draw;
	this.toHTML = TRSTree_toHTML;
	this.open = TRSTree_open;
	this.openRoot = CTRSTree_openRoot;
	this.openAll = CTRSTree_openAll;
	this.onClickCheckBox = TRSTree_onClickCheckBox;
	this.addCheckValue = TRSTree_addCheckValue;
	this.removeCheckValue = TRSTree_removeCheckValue;
	//wenyh@20060821	the CTRSTree_sCheckValue init value may be null.	
	this.getCheckValue = function() { return (CTRSTree_sCheckValue == null) ? "" : CTRSTree_sCheckValue.replace(new RegExp(CHECK_VALUE_DELIM, "g"), ","); }
	this.onClickRadio = TRSTree_onClickRadio;
	this.getRadioValue = function() { return CTRSTree_sRadioValue; }
	this.locate = TRSTree_locate;
	this.reload = TRSTree_reload;

	//Init This CTRSTree Info	
}

/**
* 给指定的父节点添加一个子节点
* @param {String} _sName 节点显示名称
* @param {String} _sId	节点ID（必须唯一）
* @param {String} _sToolTip 节点提示信息
* @param {String} _sHref 节点点击后的操作（可以是一个链接也可以是一个JavaScript）,
*			例如：document_list.jsp或者onClickChannel(13)
* @param {String} _sParentId 指定的父节点
* @param {boolean} _bHasChildren 当前指定节点是否包含子节点（可以不指定，由程序自动维护）
*			如果强行指定具有子节点，但是没有给当前节点追加子节点，那么系统会自动从服务器载入
*/
function TRSTree_addItem(_sName, _sId, _sToolTip, _sHref, _sParentId, _bHasChildren, _oWCMObj) {
	//1.Valid Paramerters
	var oNewItem = this.hTRSItems[_sId];
	if (oNewItem != null) {
		//TODO
		//CTRSAction_alert("The Node Item Has Exist!\n" + oNewItem);
		//return oNewItem;
	}
	var oParentItem = null;
	if (_sParentId != null && _sParentId.length > 0) {
		oParentItem = this.hTRSItems[_sParentId];
		if (oParentItem == null) {
			CTRSAction_alert("The Parent Item Has Not Existed!\nParent Id:[" + _sParentId + "]");
			return null;
		}
	}

	//2.Add
	oNewItem = new TRSTreeItem(_sName, _sId, _sToolTip, _sHref, oParentItem, _bHasChildren, false, this, _oWCMObj);
	//3.Init Checked 
	if ((this.nType == TRSTREE_TYPE_CHECKBOX || this.nType == TRSTREE_TYPE_RADIOBOX)
		&& this.bInitCheck) {
		var sTemp = CHECK_VALUE_DELIM + CTRSTree_sCheckValue + CHECK_VALUE_DELIM;
		oNewItem.checked = (sTemp.indexOf(CHECK_VALUE_DELIM + _sId + CHECK_VALUE_DELIM) >= 0) && (!oNewItem.beDisabledItem(oNewItem.sId)); ;
	}
	this.hTRSItems[_sId] = oNewItem;
	return oNewItem;
}

/**
* 给指定的树添加一个根节点
* @param {String} _sName 节点显示名称
* @param {String} _sId	节点ID（必须唯一）
* @param {String} _sToolTip 节点提示信息
* @param {String} _sHref 节点点击后的操作（可以是一个链接也可以是一个JavaScript）,
*			例如：document_list.jsp或者onClickChannel(13)
* @param {boolean} _bHasChildren 当前指定节点是否包含子节点（可以不指定，由程序自动维护）
*			如果强行指定具有子节点，但是没有给当前节点追加子节点，那么系统会自动从服务器载入
*/
function TRSTree_addRootItem(_sName, _sId, _sToolTip, _sHref, _bHasChildren, _oWCMObj) {
	//1.Valid Paramerters
	var oNewItem = this.hTRSItems[_sId];
	if (oNewItem != null) {
		//TODO
		//CTRSAction_alert("The Root Item Has Existed!\n" + oNewItem);
		//alert("The Root Item Has Existed!\n" + oNewItem);
		//return oNewItem;
	}

	//2.Add
	oNewItem = new TRSTreeItem(_sName, _sId, _sToolTip, _sHref, null, _bHasChildren, true, this, _oWCMObj);
	this.arRootTRSItems[this.arRootTRSItems.length] = oNewItem;
	this.hTRSItems[_sId] = oNewItem;
	return oNewItem;
}

/**
* 在当前位置输出当前的树形结构的HTML代码
*/
function TRSTree_draw(_sDisplayElementId, _nTreeWidth) {
	var oTimer = new CDebugTimer();
	oTimer.start();
	if (_sDisplayElementId) {
		document.getElementById(_sDisplayElementId).innerHTML = "<div style=\"overflow:auto;height:100%;width:" + _nTreeWidth + ";\">"
			+ this.toHTML()
			+ "</div>";
	} else {
		document.write(this.toHTML());
	}
	oTimer.stop();
	if (TRSTREE_ISDEUG)
		CTRSAction_alert("Root write HTML:[" + oTimer.getTime() + "]ms");


	oTimer.start();
	if (this.OpenAllNode) {
		this.openAll();
	} else {
		//this.openRoot(); /*打开根节点，2009年10月31日修改。*/
	}
	oTimer.stop();
	if (TRSTREE_ISDEUG)
		CTRSAction_alert("Root open:[" + oTimer.getTime() + "]ms");

}

/**
* 设置初始化选择框的值序列
* @param {String} _sInitCheckValues 初始化的值序列
*/
function CTRSTree_setInitCheckValues(_sInitCheckValues) {
	this.sInitCheckValues = _sInitCheckValues; //初始化Check Box的Values,当Type为TRSTREE_TYPE_CHECKBOX有效

	if (_sInitCheckValues && _sInitCheckValues.length > 0) {
		if (CTRSTree_sCheckValue == null)
			CTRSTree_sCheckValue = _sInitCheckValues.replace(new RegExp(",", "g"), CHECK_VALUE_DELIM);
		if (CTRSTree_sRadioValue == null)
			CTRSTree_sRadioValue = _sInitCheckValues;

		this.bInitCheck = true;
		this.sInitCheckValues = "," + _sInitCheckValues + ",";
	}
}

//定位到指定的节点上，指定的节点为按照路径构造的ID序列
/**
* 定位到指定的位置
* @param {String} _sPathIds 定位的路径（按照路径构造的ID序列）
* @param {boolean} _bLocateParent 是否定位到父节点上
* @param {boolean} _bReloadParent 是否再次载入父节点的子节点
*/
function TRSTree_locate(_sPathIds, _bLocateParent, _bReloadParent) {
	if (_sPathIds == null || _sPathIds.length == 0) {
		return;
	}
	var arTemp = _sPathIds.split("#");
	if (!arTemp[0])
		return;
	var arPath = arTemp[0].split(",");
	var nParentCount = arPath.length - 1, oParentItem = null;
	for (var i = 0; i < nParentCount; i++) {
		var sItemId = arPath[i];
		var oItem = this.hTRSItems[sItemId];

		if (oItem == null) {//载入指定节点的父节点
			if (i == 0) {
				CTRSAction_alert("指定的根节点[" + sItemId + "]不存在！");
				return;
			}
			for (var nParentIndex = (i - 1); nParentIndex < nParentCount; nParentIndex++) {
				var sParentId = arPath[nParentIndex];
				oParentItem = this.hTRSItems[sParentId];
				if (oParentItem == null) {
					CTRSAction_alert("指定的父节点[" + i + "]不存在！");
					return;
				}
				oParentItem.display();
			}
			break;
		}

		oItem.display();
		oParentItem = oItem;
	}

	var sLocateItemId = null;
	if (_bLocateParent) {
		oParentItem.reload();
		oParentItem.select();
		sLocateItemId = oParentItem.sId;
	} else {
		sLocateItemId = arPath[nParentCount];
		var oLocateItem = this.hTRSItems[sLocateItemId];
		if (oLocateItem == null || _bReloadParent)
			oParentItem.reload();

		oLocateItem = this.hTRSItems[sLocateItemId];
		if (oLocateItem == null) {//子对象不存在定位到父对象上
			oLocateItem = oParentItem;
		}
		oLocateItem.select();
	}

	var sHref = window.location.href;
	var nPose = sHref.indexOf("#");
	if (nPose > 0) {
		sHref = sHref.substring(0, nPose);
	}
	window.location.href = sHref + "#" + this.sId + "_" + sLocateItemId;
}




//Record Radio Value
/** @private **/
var CTRSTree_sRadioValue = "";
/** @private **/
//var CTRSTree_sCheckValue = null;
var CTRSTree_sCheckValue = null;
//wenyh@20060820,CTRSTree_sCheckValue需要使用null为初始值,否则会出现原地已选上的值丢失的情况
//var CTRSTree_sCheckValue = "";//wenyh@20060814,修改初始值为空串

/** @private **/
function CDebugTimer() {
	this.lStartTime = 0;
	this.lStopTime = 0;

	this.start = function() {
		this.lStartTime = (new Date()).getTime();

	}

	this.stop = function() {
		this.lStopTime = (new Date()).getTime();

	}

	this.getTime = function() {
		return parseInt(this.lStopTime - this.lStartTime);
	}
}

/** @private **/
function CTRSTree_openRoot() {
	for (var i = 0; i < this.arRootTRSItems.length; i++) {
		this.arRootTRSItems[i].open();
	}
}

function CTRSTree_openAll() {
	for (var i = 0; i < this.arRootTRSItems.length; i++) {
		this.arRootTRSItems[i].openAll();
	}
}

/** @private **/
function TRSTree_open(_sItemId) {
	var oTRSItem = this.hTRSItems[_sItemId];
	oTRSItem.open();
}


/** @private **/
function TRSTree_toHTML() {
	//1.预先载入图片
	var o_icone = new Image(), o_iconl = new Image();
	o_icone.src = this.oTRSTreeRes['icon_e'];
	o_iconl.src = this.oTRSTreeRes['icon_l'];
	this.oTRSTreeRes['im_e'] = o_icone;
	this.oTRSTreeRes['im_l'] = o_iconl;
	for (var i = 0; i < 64; i++) {
		if (this.oTRSTreeRes['icon_' + i]) {
			var o_icon = new Image();
			this.oTRSTreeRes['im_' + i] = o_icon;
			o_icon.src = this.oTRSTreeRes['icon_' + i];
		}
	}


	//2.Generate Tree HTML
	var oTimer = new CDebugTimer();
	var sHTML = ""; ;
	for (var i = 0; i < this.arRootTRSItems.length; i++) {
		oTimer.start();
		sHTML += this.arRootTRSItems[i].toHTML();
		oTimer.stop();
		if (TRSTREE_ISDEUG)
			CTRSAction_alert("Root toHTML:[" + oTimer.getTime() + "]ms");
	}

	return sHTML;
}

/** @private **/
function TRSTree_beDisabledItem(_sId) {//CTRSAction_alert(this.oTRSTree + "-->" +this.oTRSTree.arDisabledId);
	var nLength = this.oTRSTree.arDisabledId.length || 0;
	//var nLength = 0;
	if (nLength <= 0) return false;
	for (var i = 0; i < nLength; i++) {
		if (_sId == this.oTRSTree.arDisabledId[i]) return true;
	}
	return false;
}


/** @private **/
function TRSTree_toString() {
	var sInfo = "The CTRSTree Information:\n"
				+ "Root Element Size:[" + (this.arRootTRSItems.length) + "]\n";
	return sInfo;
}


/** @private **/
function TRSTreeItem_init() {
	if (this.oParentItem != null) {
		this.oRootItem = this.oParentItem.oRootItem;
		this.oParentItem.addChild(this);
		this.nDepth = this.oParentItem.nDepth + 1;
		this.nIndex = this.oParentItem.arChildren.length - 1;
	}
	if (this.bRoot) {
		this.nDepth = 0;
		this.oRootItem = this;
		this.nIndex = this.oTRSTree.arRootTRSItems.length - 1;
		this.oParentItem = this;
	}
}

/** @private **/
function TRSTreeItem_select(b_deselect) {
	if (!b_deselect) {
		var oOldSelectedItem = this.oTRSTree.oSelectedItem;
		this.oTRSTree.oSelectedItem = this;
		if (oOldSelectedItem) oOldSelectedItem.select(true);
	}

	var o_iicon = document.images['i_img' + this.oTRSTree.sId + '_' + this.sId];
	if (o_iicon) {
		var sNewImageSrc = this.getIcon();
		if (sNewImageSrc != o_iicon.src) {
			//CTRSAction_alert(sNewImageSrc);
			//CTRSAction_alert(o_iicon.src);
			//o_iicon.src = sNewImageSrc;
		}
	}
	//get_element('i_txt' + this.oTRSTree.sId + '_' + this.sId).style.fontWeight = b_deselect ? 'normal' : 'bold';
	var sElementId = this.oTRSTree.sId + '_' + this.sId;
	var oElement = get_element(sElementId);
	if (oElement != null)
		oElement.className = b_deselect ? 'tree_normal' : 'tree_selected';

	this.updateWindowStatus();

	//return Boolean(this.sHref);
	return true;
}

/** @private **/
function TRSTreeItem_getPublicEventHTML() {
	return "onmouseover='m_arTRSTrees[" + this.oTRSTree.sId + "].onMouseOver(\"" + this.sId + "\");' "
		+ "onmouseout='m_arTRSTrees[" + this.oTRSTree.sId + "].onMouseOut(\"" + this.sId + "\");'";
}

/** @private **/
function TRSTreeItem_getNodeFlagImgName() {
	return "j_img" + this.oTRSTree.sId + "_" + this.sId;
}
/** @private **/
function TRSTreeItem_getNodeImgHTML() {
	if (this.nDepth <= 0) {
		//return "";
	}

	/*一级目录前面的横线*/
	//	var arOffset = [], oTRSItemTemp = this.oParentItem;
	//	for (var i = this.nDepth; i > 0; i--) {
	//		arOffset[i] = '<img src="' + this.oTRSTree.oTRSTreeRes[oTRSItemTemp.isLast() ? 'icon_e' : 'icon_l'] + '" '
	//					+'border="0" align="absbottom">';
	//		oTRSItemTemp = oTRSItemTemp.oParentItem;
	//	}

	var arOffset = [], oTRSItemTemp = this.oParentItem;
	for (var i = this.nDepth; i > 0; i--) {
		arOffset[i] = '';
		oTRSItemTemp = oTRSItemTemp.oParentItem;

	}

	/*三级节点前面的图片，2009年10月22日修改
	if(!this.bHasChildren){
	return arOffset.join('')
	+ "<img src=\"" + this.getIcon(true) + "\" border=0 align=absbottom>";
	}*/

	if (!this.bHasChildren) {//元素节点
		return arOffset.join('');
	}

	/*二级节点前面的图片*/
	return arOffset.join("")
		+ "<a href='###' onclick='m_arTRSTrees[" + this.oTRSTree.sId + "].open(\"" + this.sId + "\");return false;' "
		+ this.getPublicEventHTML()
		+ " >";
	//+"<img src=\"" + this.getIcon(true) + "\" border=0 align=absbottom name=\""+this.getNodeFlagImgName()+"\"></a>";			
}

/** @private **/
function TRSTreeItem_getItemDivId() {
	return 'i_div' + this.oTRSTree.sId + '_' + this.sId;
}

/** @private **/
function TRSTreeItem_getItemDiv() {
	var oItemDiv = get_element(this.getItemDivId());
	if (!oItemDiv) {
		CTRSAction_alert("Error Exception:Not Found [" + this.getItemDivId() + "]Div")
		return null;
	}
	return oItemDiv;
}

/** @private **/
function TRSTreeItem_getItemSpanId() {
	return 'i_Span' + this.oTRSTree.sId + '_' + this.sId;
}

/** @private **/
function TRSTreeItem_getItemSpan() {
	var oItemSpan = get_element(this.getItemSpanId());
	if (!oItemSpan) {
		CTRSAction_alert("Error Exception:Not Found [" + this.getItemSpanId() + "]Span")
		return null;
	}
	return oItemSpan;
}

/** @private **/
function TRSTreeItem_getIcon(_bJunction) {
	//处理自定义节点图片的情况
	if (!_bJunction) {
		var sSrc;
		var iconType = null;
		if (this.iconType) {
			iconType = this.iconType;
		} else if (this.oWCMObj) {
			iconType = this.oWCMObj.getProperty("CHNLTYPE");
		}

		if (iconType != null) {
			if (!this.bHasChildren)
				sSrc = this.oTRSTree.oTRSTreeRes["icon_n_" + iconType];
			else
				sSrc = this.oTRSTree.oTRSTreeRes["icon_n_" + iconType + "_folder"];
		} else {
			sSrc = this.oTRSTree.oTRSTreeRes["icon_n_" + this.sId];
		}
		if (sSrc != null) return sSrc;
	}

	//根据规则返回图片
	var sIconId = 'im_' + ((this.nDepth ? 0 : 32) + (this.bHasChildren ? 16 : 0)
			+ (this.bHasChildren && this.bOpened ? 8 : 0)
			+ (!_bJunction && this.oTRSTree.oSelectedItem == this ? 4 : 0) + (_bJunction ? 2 : 0)
			+ (_bJunction && this.isLast() ? 1 : 0));
	//CTRSAction_alert(this.oTRSTree.oTRSTreeRes[sIconId].src);
	//alert(sIconId);
	return this.oTRSTree.oTRSTreeRes[sIconId].src;
}

/** @private **/
function TRSTreeItem_updateWindowStatus(_bClear) {
	window.setTimeout('window.status="' + (_bClear ? '' : this.sToolTip) + '  ItemID:[' + this.sId + ']"', 10);
}

/**
* 根据指定的父节点ID动态载入子节点的列表（抽象方法）
*（动态载入子节点的树形结构需要实现此方法）
* @param {TRSTree} 树形结构对象（CTRSTree的实例）
* @param {String} 当前父节点的ID
* @param {TRSTreeItem} 当前父节点对象
*/
function TRSTreeItem_loadChildren(_oTRSTree, _sParentId, _oCurrItem) {
	//_oTRSTree.addItem("第一个子节点名称", "第一个子节点ID", "第一个子节点提示", "第一个子节点链接", _sParentId, false);
	//_oTRSTree.addItem("第二个子节点名称", "第二个子节点ID", "第二个子节点名称", "第二个子节点链接", _sParentId, false);
	CTRSAction_alert("function TRSTreeItem_loadChildren(_oTRSTree, _sParentId, _oCurrItem){...} Not Implemented!");
}

function TRSTreeItem_openAll() {
	this.open();

	if (this.arChildren == null) return;

	for (var i = 0; i < this.arChildren.length; i++)
		this.arChildren[i].openAll();
}

/**
* @private
*/
function TRSTreeItem_open() {
	if (!this.bHasChildren)
		return;
	//Get Item Div
	var oItemDiv = this.getItemDiv();
	if (oItemDiv == null) {
		return;
	}

	//Set Item Div HTML and Display
	if (this.bHasChildren && (this.arChildren == null || this.arChildren.length == 0)) {//Need Loading....
		var arOffset = [], oTRSItemTemp = this;
		for (var i = this.nDepth; i > 0; i--) {
			arOffset[i] = '<img src="' + this.oTRSTree.oTRSTreeRes[oTRSItemTemp.isLast() ? 'icon_e' : 'icon_l'] + '" '
						+ 'border="0" align="absbottom">';

			oTRSItemTemp = oTRSItemTemp.oParentItem;
		}

		oItemDiv.innerHTML = arOffset.join('') + "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"
							+ "<a class=\"t" + this.oTRSTree.sId + "i\" onclick=\"return false;\"><font color=blue>....</font></a>";
		oItemDiv.style.display = (this.bOpened ? 'none' : 'block');
		this.bLoading = true;
		TRSTreeItem_loadChildren(this.oTRSTree, this.sId, this);

		//Not Load Children
		if ((this.arChildren == null || this.arChildren.length == 0)) {

			this.bHasChildren = false;
			this.arChildren = null;
			var oItemSpan = this.getItemSpan();
			if (oItemSpan == null) {
				return;
			}

			if (!oItemSpan.nodeName && oItemSpan.length) {
				oItemSpan = oItemSpan[0];
			}

			oItemSpan.innerHTML = this.toHTML(true);
			return;
		}
	}

	if (!oItemDiv.innerHTML || (this.bLoading && this.arChildren)) {
		this.bLoading = false;
		var arChildrenHTML = [];
		for (var i = 0; i < this.arChildren.length; i++)
			arChildrenHTML[i] = this.arChildren[i].toHTML();
		oItemDiv.innerHTML = arChildrenHTML.join('');

	}
	oItemDiv.style.display = (this.bOpened ? 'none' : 'block');

	//Upate Item Statuses
	this.bOpened = !this.bOpened;
	var o_jicon = document.images['j_img' + this.oTRSTree.sId + '_' + this.sId],
		o_iicon = document.images['i_img' + this.oTRSTree.sId + '_' + this.sId];
	if (o_jicon) o_jicon.src = this.getIcon(true);
	else {
		var oDiv = document.getElementById("div_" + this.oTRSTree.sId + '_' + this.sId);
		if (oDiv)
			oDiv.innerHTML = this.getNodeImgHTML();
		//alert(oDiv.innerHTML);
	}
	if (o_iicon) o_iicon.src = this.getIcon();
	//Upate Window Statuses
	this.updateWindowStatus();
}

/**
* @private
*/
function TRSTreeItem_display() {
	if (this.bOpened)
		return;
	this.open();
}

/**
* @private
*/
function TRSTreeItem_reload() {
	//insure get data from server
	this.bHasChildren = true;

	//set this.arChildren to null
	if (this.arChildren != null) {
		this.arChildren.splice(0, this.arChildren.length);
		this.arChildren = null;
		this.bOpened = false;
	}

	this.open();
}




/**
* @private
*/
function TRSTreeItem_addChild(_TRSTreeItem) {
	if (this.arChildren == null)
		this.arChildren = new Array();

	this.arChildren[this.arChildren.length] = _TRSTreeItem;
	this.bHasChildren = true;
}

/**
* @private
*/
function TRSTreeItem_toString() {
	var sInfo = "Name:[" + this.sName + "] Id:[" + this.sId + "]  Href:[" + this.sHref + "] \n"
				+ "ParentId:[" + (this.oParentItem ? this.oParentItem.sId : "") + "] "
				+ "Children:[" + (this.arChildren ? this.arChildren.length : 0) + "]\n"
				+ (this.bRoot ? "" : "Not ") + "Is Root Node!\n";
	return sInfo;
}

/**
* @private
*/
function TRSTreeItem_isLast() {
	if (this.oParentItem == this) return false;

	return this.nIndex == this.oParentItem.arChildren.length - 1
}

function TRSTree_GetSelfDivId(_oTRSTreeItem) {
	if (_oTRSTreeItem == null)
		return;

	return 'div_' + _oTRSTreeItem.oTRSTree.sId + '_' + _oTRSTreeItem.sId;
}


/**
* @private
*/
function TRSTreeItem_toHTML(_bExcludeSpan) {
	var sHTML = _bExcludeSpan ? '' : '<div id="' + this.getItemSpanId() + '" title="' + this.sToolTip + '" >';
	//sHTML += '<table cellpadding="0" cellspacing="0" border="0" height="20px"><tr><div ';

	if (this.bRoot)
		sHTML += '<table cellpadding="0" cellspacing="0" border="0" height="28px" class="treebottomline"><tr><div  Name="spRootNode" ObjId=' + this.sId.substring(1) + ' ';
	else
		sHTML += '<table cellpadding="0" cellspacing="0" border="0" height="28px"><tr><div Name="spSubNode" ObjId=' + this.sId + ' ';
	if (this.nMenuIndex != null)
		sHTML += ' MenuIndex="' + this.nMenuIndex + '" ';
	if (this.sRightValue != null && this.sRightValue.length > 0)
		sHTML += ' RightValue="' + this.sRightValue + '" ';
	if (this.oParentItem) {
		//var sParentId = this.oParentItem.sId;
		//WSW @ 2005-6-16 修改bug，需要把可能的整形值转成字符串类型，否则可能在下一步的substring出错。
		var sParentId = this.oParentItem.sId + "";
		if (sParentId.substring(0, 1) == "S")
			sHTML += ' ParentType=103 ' + 'ParentId=' + sParentId.substring(1);
		else
			sHTML += ' ParentType=101 ' + 'ParentId=' + sParentId;
	} else {
		CTRSAction_alert('why parent is null??');
	}

	var sSelfDivId = TRSTree_GetSelfDivId(this);

	sHTML += ' ><td nowrap><div style="display:inline;" name="' + sSelfDivId + '" id="' + sSelfDivId + '">'
		+ this.getNodeImgHTML()
    	+ '</div><img style="\widht:8px; height:8px;  margin-top: 4px;float:left;\" src="' + this.getIcon() + '" border="0" align="absmiddle" name="i_img' + this.oTRSTree.sId + '_' + this.sId + '"'
		+ ' class="t' + this.oTRSTree.sId + 'im">'//三级目录前面的小图片
		+ this.getTypeHTML()
		+ ((this.sHref == null || this.sHref == "") ? "<a onclick=\"return false;\">" :
			"<a name=\"" + this.oTRSTree.sId + "_" + this.sId + "\" ID=\"" + this.sId + "\" href='" + this.sHref + "' target='" + this.oTRSTree.sTarget + "' "
		+ " onclick='return m_arTRSTrees[" + this.oTRSTree.sId + "].select(\"" + this.sId + "\");'"
		+ " onmousedown='return m_arTRSTrees[" + this.oTRSTree.sId + "].select(\"" + this.sId + "\");'"
		+ " ondblclick='m_arTRSTrees[" + this.oTRSTree.sId + "].open(\"" + this.sId + "\");' "
		+ this.getPublicEventHTML()
		+ ' class="tri" id="' + this.oTRSTree.sId + '_' + this.sId + '">')
		+ this.sName + '</a>'
		+ '</td></div></tr></table>'
		+ '<div id="' + this.getItemDivId() + '" style="display:' + (this.oTRSTree.OpenAllNode ? 'inline' : 'none') + ';"></div>';
	//TODO Children的优化

	sHTML += _bExcludeSpan ? '' : "</div>";
	return sHTML;
}


/**
* @private
*/
function TRSTreeItem_getTypeHTML() {
	if (this.oTRSTree.nType == TRSTREE_TYPE_NORMAL || this.nDepth <= 0)
		return "";

	if (this.oTRSTree.nType == TRSTREE_TYPE_CHECKBOX) {
		if (this.checked) {
			this.oTRSTree.addCheckValue(this.sId);
		}
		var sHtml = null;
		if (this.IsMgrNode) {
			sHtml = "<input type=checkbox name=\"TRSTreeNode\" value=\"" + this.sId + "\" "
				+ (this.checked ? "checked" : "")
				+ " onclick=\"TRSTree_checkAllChildren('" + this.oTRSTree.sId + "', '" + this.getItemDivId() + "', this.checked);\"";
		} else {
			sHtml = "<input type=checkbox name=\"TRSTreeNode\" value=\"" + this.sId + "\" "
				+ (this.checked ? "checked" : "")
				+ " onclick=\"TRSTree_onClickCheckBox('" + this.oTRSTree.sId + "', this.value, this.checked);\"";
		}

		if (this.beDisabledItem(this.sId))
			sHtml += " disabled ";
		sHtml += ">";
		return sHtml;
	}

	if (this.oTRSTree.nType == TRSTREE_TYPE_RADIOBOX) {
		if (this.IsMgrNode) {
			return "";
		}

		if (this.checked) {
			CTRSTree_sRadioValue = this.sId;
		}
		var sHtml = "<input type=radio name=\"TRSTreeNode\" value=\"" + this.sId + "\" "
				+ (this.checked ? "checked" : "")
				+ " onclick='m_arTRSTrees[" + this.oTRSTree.sId + "].onClickRadio(this);'";
		if (this.beDisabledItem(this.sId))
			sHtml += " disabled ";
		sHtml += ">";

		return sHtml;

	}
}

var CHECK_VALUE_DELIM = "~~";
/**
* @private
*/
function TRSTree_addCheckValue(_sValue) {
	var sCheckValue = CTRSTree_sCheckValue;
	if (sCheckValue == null || sCheckValue.length == 0 || sCheckValue == "NULL" || sCheckValue == "null") {
		CTRSTree_sCheckValue = _sValue;
		return true;
	}

	sCheckValue = CHECK_VALUE_DELIM + sCheckValue + CHECK_VALUE_DELIM;
	var nPose = sCheckValue.indexOf(CHECK_VALUE_DELIM + _sValue + CHECK_VALUE_DELIM);
	if (nPose >= 0)
		return true;

	CTRSTree_sCheckValue += CHECK_VALUE_DELIM + _sValue;
}

/**
* @private
*/
function TRSTree_removeCheckValue(_sValue) {
	var sCheckValue = CTRSTree_sCheckValue;
	if (sCheckValue == null || sCheckValue.length == 0) {
		return true;
	}

	sCheckValue = CHECK_VALUE_DELIM + sCheckValue + CHECK_VALUE_DELIM;
	var nPose = sCheckValue.indexOf(CHECK_VALUE_DELIM + _sValue + CHECK_VALUE_DELIM);
	if (nPose == 0) {
		CTRSTree_sCheckValue = CTRSTree_sCheckValue.substring((_sValue + CHECK_VALUE_DELIM).length);
	} else if (nPose > 0) {
		CTRSTree_sCheckValue = CTRSTree_sCheckValue.substring(0, nPose - CHECK_VALUE_DELIM.length)
			+ CTRSTree_sCheckValue.substring(nPose + _sValue.length);
	}
}

function TRSTree_checkAllChildren(_sTreeId, _sItemDivId, _bChecked) {
	var oItemDiv = document.getElementById(_sItemDivId);
	if (oItemDiv == null) {
		return;
	}

	var pElements = oItemDiv.getElementsByTagName("input");
	for (var i = 0; i < pElements.length; i++) {
		if (pElements[i].type == "checkbox" && !pElements[i].disabled) {
			pElements[i].checked = _bChecked;
			TRSTree_onClickCheckBox(_sTreeId, pElements[i].value, _bChecked)
		}
	}
}

/**
* @private
*/
function TRSTree_onClickCheckBox(_sTreeId, _sValue, _bChecked) {
	var oTreeTemp = m_arTRSTrees[_sTreeId];
	oTreeTemp.hTRSItems[_sValue].checked = _bChecked;

	if (_bChecked) {
		oTreeTemp.addCheckValue(_sValue);
	} else {
		oTreeTemp.removeCheckValue(_sValue);
	}

	return true;
}



/**
* @private
*/
function TRSTree_onClickRadio(_elRadio) {
	this.hTRSItems[_elRadio.value].checked = _elRadio.checked;
	if (_elRadio.checked) {
		CTRSTree_sRadioValue = _elRadio.value;
	} else {
		if (CTRSTree_sRadioValue == _elRadio.value) {
			CTRSTree_sRadioValue = "";
		}
	}
	return true;
}

get_element = document.all ?
	function(s_id) { return document.all(s_id) } :
	function(s_id) { return document.getElementById(s_id) };

/**
* @private
*/
function TRSTreeItem(_sName, _sId, _sToolTip, _sHref, _oParentItem, _bHasChildren, _bRoot, _oTRSTree, _oWCMObj) {
	//Define Properties
	this.sName = _sName || "";
	this.sId = _sId || "";
	this.sToolTip = _sToolTip || this.sName;
	this.sHref = _sHref || "";
	this.nDepth = -1;

	this.oParentItem = _oParentItem || null;
	this.arChildren = null;
	this.oRootItem = null;

	this.oWCMObj = _oWCMObj || null;
	this.nMenuIndex = (_oWCMObj) ? _oWCMObj.getProperty("MENUINDEX") : "0";
	this.sRightValue = (_oWCMObj) ? _oWCMObj.getProperty("RIGHTVALUE") : "";

	this.bRoot = _bRoot || false;
	this.bHasChildren = _bHasChildren || false;

	this.oTRSTree = _oTRSTree;
	this.bOpened = false;

	this.checked = false;

	//Define Methods
	this.addChild = TRSTreeItem_addChild;
	this.open = TRSTreeItem_open;
	this.openAll = TRSTreeItem_openAll;
	this.display = TRSTreeItem_display;
	this.select = TRSTreeItem_select;

	this.isLast = TRSTreeItem_isLast;
	this.getItemSpanId = TRSTreeItem_getItemSpanId;
	this.getItemSpan = TRSTreeItem_getItemSpan;
	this.getItemDivId = TRSTreeItem_getItemDivId;
	this.getItemDiv = TRSTreeItem_getItemDiv;
	this.getIcon = TRSTreeItem_getIcon;
	this.getNodeFlagImgName = TRSTreeItem_getNodeFlagImgName;
	this.getNodeImgHTML = TRSTreeItem_getNodeImgHTML;
	this.getPublicEventHTML = TRSTreeItem_getPublicEventHTML;
	this.getTypeHTML = TRSTreeItem_getTypeHTML;

	this.toString = TRSTreeItem_toString;
	this.toHTML = TRSTreeItem_toHTML;

	this.updateWindowStatus = TRSTreeItem_updateWindowStatus;
	this.init = TRSTreeItem_init;

	this.reload = TRSTreeItem_reload;

	this.beDisabledItem = TRSTree_beDisabledItem;
	//Init This Item and Parent Item Info
	this.init();
}



function TRSTree_reload(_sItemId) {
	var sItemId = _sItemId || "";
	if (sItemId == null || sItemId.length <= 0)
		return;

	var oItem = this.hTRSItems[sItemId];
	if (oItem == null)
		return;

	oItem.reload();
}

/** 
* 树形结构的调试开关 
* @type boolean
*/
var TRSTREE_ISDEUG = false;
/** @const {int} 树形结构的类型：普通型（0） */
var TRSTREE_TYPE_NORMAL = 0;
/** @const {int} 树形结构的类型：多选型（1） */
var TRSTREE_TYPE_CHECKBOX = 1;
/** @const {int} 树形结构的类型：单选型（2） */
var TRSTREE_TYPE_RADIOBOX = 2;
/** 
* 记录当前页面所有的TRSTree对象
* @type Array
*/
var m_arTRSTrees = [];