///////////////////////////////////////////////////////////////////////////////
	document.oncontextmenu = function () {
		return false;
	};
	document.ondragstart = function () {
		return false;
	};
	document.onselectstart = function () {
		return false;
	};
	document.onmousedown = function () {
		return false;
	};
	document.onkeypress = function () {
		return false;
	};
///////////////////////////////////////////////////////////////////////////////
	var isIE = false, isMZ = false, isFF = false;
	var baseUri = "";

	/**
	 * 檢查瀏覽器的版本
	 **/
	function chkBrowser() {
		var re = new RegExp("MSIE","ig");
		if (re.test(navigator.userAgent)) {
			isIE = true;
		}

		re = new RegExp("Gecko","ig");
		if (re.test(navigator.userAgent)) {
			isMZ = true;
			re = new RegExp("Firefox","ig");
			if (re.test(navigator.userAgent)) {
				isFF = true;
			}
		}
	}

	/**
	 * 取得目的地的 Frame
	 * @return 目的地的 Frame
	 **/
	function getTargetName() {
		var txt = "_blank";
		switch (this.name) {
			case "s_sysbar": txt = "s_main"; break;
			case "c_sysbar": txt = "c_main"; break;
			case "sysbar"  : txt = "main";   break;
		}
		return txt;
	}

	/**
	 * 取得另外的視窗
	 * @return Object 另外的視窗 (other frame)
	 **/
	function getTarget() {
		var obj = null;
		switch (this.name) {
			case "s_main"   : obj = parent.s_catalog; break;
			case "c_main"   : obj = parent.c_catalog; break;
			case "main"     : obj = parent.catalog;   break;
			case "s_catalog": obj = parent.s_main; break;
			case "c_catalog": obj = parent.c_main; break;
			case "catalog"  : obj = parent.main;   break;
			case "s_sysbar" : obj = parent.s_main; break;
			case "c_sysbar" : obj = parent.c_main; break;
			case "sysbar"   : obj = parent.main;   break;
		}
		return obj;
	}

	/**
	 * 同步功能種類
	 * @param obj : 對象物件
	 * @param val : 功能
	 **/
	function syncValue(obj, val) {
		if ((typeof(obj) != "object") || (obj == null)) return false;
		if (val == "") {
			obj.selectedIndex = 0;
			return true;
		}
		for (var i = 0; i < obj.length; i++) {
			if (val == obj.options[i].value) {
				obj.selectedIndex = i;
				return true;
			}
		}
		return false;
	}

	/**
	 * 清除 HTML 的 Tag
	 * @param string str : 要清除的文字
	 * @return string : 清除後的結果
	 **/
	function strip_tags(str) {
		var re = /<[\/\!]*.?[^<>]*.?>/ig;
		var txt = "";
		txt = str.replace(re, "");
		txt = txt.replace("&amp;", "&");
		txt = txt.replace("&nbsp;", " ");
		return txt;
	}

///////////////////////////////////////////////////////////////////////////////
	/**
	 * 顯示時間 (show System Time)
	 **/
	function showSysTime(val) {
		var obj = document.getElementById("tdSysTime");
		if (obj != null) {
			obj.innerHTML = val;
		}
	}

	function showOnline(v1, v2, v3) {
		var obj = null;
		obj = document.getElementById("spanSchool");
		if ((typeof(obj) == "object") && (obj != null)) obj.innerHTML = v1;
		obj = document.getElementById("spanOnline");
		if ((typeof(obj) == "object") && (obj != null)) obj.innerHTML = v2;
		obj = document.getElementById("spanCourse");
		if ((typeof(obj) == "object") && (obj != null)) obj.innerHTML = v3;
		rePositionOther();
	}

	var userWin = null;
	function showUserList(url) {
	    if (url == null) url = "/online/userlist.php";
		if ((userWin != null) && !userWin.closed) {
			userWin.focus();
		} else {
			// Bug#1257 無法使用右鍵（因為showDialog沒有右鍵功能），改用window.open去開啟視窗 by Small 2006/9/20
			// userWin = showDialog("/online/index.php", false , "", true, "200px", "200px", "660px", "400px", "status=0, resizable=1, scrollbars=1");
			userWin = window.open(url, "_blank", "width=660,height=400,toolbar=0,location=0,status=0,menubar=0,directories=0,scrollbars=1,resizable=1");
		}
	}
///////////////////////////////////////////////////////////////////////////////
	/**
	 * 顯示子選單
	 **/
	function showSubMenu(idx, action) {
		// 先判斷目前功能是否有未存檔的操作
		var tmp = eval('parent.'+getTargetName());
		if (typeof(tmp.notSave) == 'boolean' && tmp.notSave)
			if (!confirm(tmp.MSG_EXIT)) return;
		else 
			tmp.notSave = false;
			
		var obj1 = document.getElementById("mngp_" + menuMIdx);
		var obj2 = document.getElementById("mngp_" + idx);
		if (obj2 != null) {
			if ((menuMIdx != 10000) && (obj1 != null))
				obj1.style.display = "none";
			obj2.style.display = "block";

			obj1 = document.getElementById("mnItem_" + menuMIdx);
			if (obj1 != null) obj1.className = "MMenuItemOut";
			obj2 = document.getElementById("mnItem_" + idx);
			if (obj2 != null) obj2.className = "MMenuItemOver";

			menuMIdx = idx;
			// 重設子選單的移動按鈕 (reset child menu move button)
			reSSclBtn();
			// 自動執行第一個子項目 (auto run first item)
			// over
			if ((username == 'guest') && (typeof(action) != 'undefined')) {
				action = "SYS_07_01_001";
				// 需考慮進入課程後的狀態 (check course status)
			} else {
				// if ((typeof(action) == 'undefined') || (action == 0) || (action == '')) {
				if ((typeof(action) == 'undefined') || (action == 0) || (action == ''))
					action = getSysGotoLabel();
				if (action == "") {
					obj1 = document.getElementById("mngp_" + idx);
					if (obj1 == null) return false;
					obj2 = obj1.getElementsByTagName("a");
					if (obj2 == null || obj2.length < 1) return false;
					action = obj2[0].getAttribute("sysid");
				}
			}
			if (typeof sysGotoLabel == "string") sysGotoLabel = "";
			chgMenuItem(action, true);
		}
	}

	/**
	 * 主選單的特效
	 **/
	function mmMouseEvent(evnt) {
		var obj = null;
		if (isIE) {
			evnt = event;
			obj = evnt.srcElement;
		}
		if (isMZ) {
			obj = evnt.currentTarget;
		}
		obj = obj.offsetParent;
		if (obj.id == ("mnItem_" + menuMIdx)) return false;
		switch (evnt.type) {
			case "mouseover": if (obj != null) obj.className = "MMenuItemOver"; break;
			case "mouseout" : if (obj != null) obj.className = "MMenuItemOut"; break;
		}
	}

	/**
	 * 子選單的特效
	 **/
	function smMouseEvent(evnt) {
		var obj = null, node = null;
		var val = null;

		if (isIE) {
			evnt = event;
			obj = evnt.srcElement;
		}
		if (isMZ) {
			obj = evnt.currentTarget;
		}

		if (obj.id == ("smnItem_" + menuSIdx)) return true;
		switch (evnt.type) {
			case "mouseover": if (obj != null) obj.className = "SMenuItemOver"; break;
			case "mouseout" : if (obj != null) obj.className = "SMenuItemOut"; break;
			case "click"    :
				var x = getTargetName();
				if (x == 's_main')
				{
					eval('var menuFrame = parent.' + x.substring(0,x.lastIndexOf('_'))+'_catalog;');
					if (obj.id != 'smnItem_10002' && menuFrame.location.pathname == '/learn/path/manifest.php')
					{
						parent.FrameExpand(0,false,0);
						var objFrame = menuFrame.document.getElementById("pathtree");
						if (objFrame                                            != null &&
							objFrame.contentWindow.fetchResourceForm            != null &&
							typeof(objFrame.contentWindow.fetchResourceForm.href) != 'undefined' &&
							objFrame.contentWindow.fetchResourceForm.href.value != 'about:blank')
						{
							objFrame.contentWindow.doUnload();
						}
					}
					else if (menuFrame.location.pathname == '/learn/scorm/InitialSCORM.php') {
						parent.FrameExpand(0, false, 0);
						menuFrame.doUnload();
					}
				}

				node = document.getElementById("smnItem_" + menuSIdx);
				if (node != null) {
					node.className = "SMenuItemOut";
				}

				if (obj != null) {
					obj.className = "SMenuItemOver";
					val = obj.id.split("_");
					menuSIdx = val[1];
				}
				// parent.FrameExpand(0, false, 0);
				break;
		}
	}
///////////////////////////////////////////////////////////////////////////////
	var MDefWidth = 425, SDefWidth = 425;
	var Timer = null;
	var aryPosition = new Array();

	function reposenv()
	{
		var bodyWidth = 796;
		bodyWidth =  (isIE) ? document.body.clientWidth : window.innerWidth;
		obj = document.getElementById("SysHelp");
		if (obj != null) obj.style.left = bodyWidth - obj.offsetWidth - 5;
	}

	function env2short()
	{
		var obj = document.getElementById("SysHelp");
		var nodes = obj.getElementsByTagName("div");
		var nw = 0; nl = 1;
		if (parseInt(obj.clientWidth) > 160)
		{
			if (nodes.length > 0)
			{
				nw = parseInt(115 / nodes.length);
				for (var i = 0; i < nodes.length; i++)
				{
					if (parseInt(nodes[i].offsetWidth) <= nw) continue;
					nodes[i].setAttribute("orgWidth", parseInt(nodes[i].offsetWidth));
					nodes[i].setAttribute("srtWidth", parseInt(nw));
					nodes[i].style.width = nw + "px";
					nodes[i].style.overflow = "hidden";
					nodes[i].onmouseout = function ()
					{
						// this.style.width = "px";
						this.style.width = this.getAttribute("srtWidth") + "px";
						reposenv();
					};
					nodes[i].onmouseover = function ()
					{
						this.style.width = this.getAttribute("orgWidth") + "px";
						reposenv();
					};
				}
			}
		}
	}

	/**
	 * 重新設定所有 Layer 的位置
	 **/
	function rePosition() {
		var bodyWidth = 796; // 取得可用的寬度 (get width)
		var MSclLeft = 600, SSclLeft = 600; // 定義選單左右移動的位置 (define vertically position)
		var OtherLeft = 0;
		var obj = null;

		aryPosition = new Array(); // 清除所有的位置 (clearn position)
		MDefWidth = 390, SDefWidth = 390; // 定義選單預設的寬度 (define default width)
		bodyWidth =  (isIE) ? document.body.clientWidth : window.innerWidth;
		if (bodyWidth < 796) bodyWidth = 796;
		if (bodyWidth > 796) {
			// 選單 (menu)
			MDefWidth += (bodyWidth - 796);
			SDefWidth += (bodyWidth - 796);
			// 左右移動按鈕 (button)
			MSclLeft += (bodyWidth - 796);
			SSclLeft += (bodyWidth - 796);
		}
		//　預設的版面 給 Mozilla 用的 (for Mozilla)
		obj = document.getElementById("SysLayout");
		if (obj != null) {
			obj.width = bodyWidth;
			if (isMZ) {    // 在 Mozilla 1.5 中呈現上會有錯誤，故需要此步驟 (Mozilla 1.5 need do it)
				obj.style.display = "none";
				obj.style.display = "";
			}
		}

		// 選單 (menu)
		obj = document.getElementById("MContainer");
		if (obj != null) obj.style.width = MDefWidth;
		obj = document.getElementById("SContainer");
		if (obj != null) obj.style.width = SDefWidth;
		// 左右移動按鈕 (button)
		obj = document.getElementById("MScroll");
		if (obj != null) obj.style.left = MSclLeft;
		obj = document.getElementById("SScroll");
		if (obj != null) obj.style.left = SSclLeft;
		// 線上人數 (online)
		obj = document.getElementById("SysOnline");
		if (obj != null) obj.style.left = bodyWidth - obj.offsetWidth - 5;
		// 說明，登出，辦公室 (help, logout, office)
		obj = document.getElementById("SysHelp");
		if (obj != null) obj.style.left = bodyWidth - obj.offsetWidth - 5;
		// 系統時間 (system time)
		obj = document.getElementById("SysTime");
		if (obj != null) obj.style.left = bodyWidth - obj.offsetWidth - 5;
		// 移動按鈕 (move button)
		obj = document.getElementById("MLeft");
		if (obj != null) obj.style.visibility = "hidden";
		obj = document.getElementById("MRight");
		if (obj != null) obj.style.visibility = "hidden";
		obj = document.getElementById("SLeft");
		if (obj != null) obj.style.visibility = "hidden";
		obj = document.getElementById("SRight");
		if (obj != null) obj.style.visibility = "hidden";
		reMSclBtn();
		reSSclBtn();
		setTimeout("rePositionOther()", 2000);
	}

	function rePositionOther() {
		var bodyWidth = 796; // 取得可用的寬度 (get width)
		var MSclLeft = 600, SSclLeft = 600; // 定義選單左右移動的位置 (define vertically position)
		var OtherLeft = 0;
		var obj = null;

		bodyWidth =  (isIE) ? document.body.clientWidth : window.innerWidth;
		if (bodyWidth < 796) bodyWidth = 796;
		//　預設的版面 給 Mozilla 用的 (for Mozilla)
		obj = document.getElementById("SysLayout");
		if (obj != null) {
			obj.width = bodyWidth;
			if (isMZ) {    // 在 Mozilla 1.5 中呈現上會有錯誤，故需要此步驟 (Mozilla 1.5 need do it)
				obj.style.display = "none";
				obj.style.display = "";
			}
		}

		// 線上人數 (online)
		obj = document.getElementById("SysOnline");
		if (obj != null) obj.style.left = bodyWidth - obj.offsetWidth - 5;
		// 說明，登出，辦公室 (help, logout, office)
		obj = document.getElementById("SysHelp");
		if (obj != null) obj.style.left = bodyWidth - obj.offsetWidth - 5;
		// 系統時間 (system time)
		obj = document.getElementById("SysTime");
		if (obj != null) obj.style.left = bodyWidth - obj.offsetWidth - 5;
		// 主選單加入圖示後偏移的修正 (Main Menu)
		obj = document.getElementById("MMenu");
		if (obj != null) obj.offsetParent.style.top = 68 - parseInt(obj.offsetHeight);
	}

	/**
	 * 重新設定主選單的移動按鈕
	 **/
	function reMSclBtn() {
		var obj = null;
		var node = null;
		var nowWidth = 425;
		obj = document.getElementById("mngp_10000");
		if ((obj != null) && (obj.childNodes.length > 0)) {
			nowWidth = obj.childNodes[0].offsetWidth;
		}

		obj = document.getElementById("MMenu");
		if (obj != null) {
			obj.style.left = 0;
		}
		obj = document.getElementById("MLeft");
		if (obj != null) obj.style.visibility = "hidden";
		obj = document.getElementById("MRight");
		if (nowWidth > MDefWidth) {
			if (obj != null) obj.style.visibility = "visible";
			Calculate(0);
		} else {
			if (obj != null) obj.style.visibility = "hidden";
		}
	}

	/**
	 * 重新設定子選單的移動按鈕
	 **/
	function reSSclBtn() {
		var obj = null;
		var node = null;
		var nowWidth = 425;
		if (menuMIdx == 10000) return false;
		obj = document.getElementById("mngp_" + menuMIdx);
		if ((obj != null) && (obj.childNodes.length > 0)) {
			nowWidth = obj.childNodes[0].offsetWidth;
		}

		obj = document.getElementById("SMenu");
		if (obj != null) {
			obj.style.left = 0;
		}
		obj = document.getElementById("SLeft");
		if (obj != null) obj.style.visibility = "hidden";
		obj = document.getElementById("SRight");
		if (nowWidth > SDefWidth) {
			if (obj != null) obj.style.visibility = "visible";
			Calculate(parseInt(menuMIdx) - 10000);
		} else {
			if (obj != null) obj.style.visibility = "hidden";
		}
	}

	/**
	 * 計算選單左右移動的定點
	 **/
	function Calculate(idx) {
		var defWidth = 0, newWidth = 0;
		var menuIndex = 0, aryIdx = 2, i = 0;
		var obj = null, nodes = null;
		var leftOffset = 0;

		menuIndex = 10000 + parseInt(idx);
		obj = document.getElementById("mngp_" + menuIndex);
		if (obj == null) return false;

		nodes = obj.getElementsByTagName("td");
		if (nodes == null) return false;

		defWidth = (idx == 0) ? MDefWidth : SDefWidth;
		newWidth = (idx == 0) ? MDefWidth : SDefWidth;

		if (typeof(aryPosition[idx]) != "undefined") {
			aryPosition[idx][0] = 1;
			return true;
		}
		if (idx == 0) leftOffset = 3;
		aryPosition[idx] = new Array();
		aryPosition[idx][0] = 1;
		aryPosition[idx][1] = 0;
		for (i = 0; i < nodes.length; i++) {
			if (parseInt(nodes[i].offsetLeft) > newWidth) {
				aryPosition[idx][aryIdx] = parseInt(nodes[i - 1].offsetLeft) - leftOffset;
				newWidth = defWidth + nodes[i - 1].offsetLeft - leftOffset;
				aryIdx++;
			}
		}
		i = nodes.length - 1;
		if ((parseInt(nodes[i].offsetLeft) + parseInt(nodes[i].offsetWidth)) >  newWidth) {
			aryPosition[idx][aryIdx] = parseInt(nodes[i].offsetLeft) - leftOffset;
		}
	}

	/**
	 * 左右移動選單
	 **/
	function ScrollMenu(idx) {
		var obj = null, node = null;
		var menuIndex = parseInt(menuMIdx) - 10000;
		var aryIndex = 1;

		if (Timer != null) return false;
		if (idx < 3) {
			menuIndex = 0;
			obj = document.getElementById("MMenu");
		} else {
			obj = document.getElementById("SMenu");
		}
		if (obj == null) return false;
		if (typeof(aryPosition[menuIndex]) == "undefined") {
			return false;
		}

		aryIndex = aryPosition[menuIndex][0];
		switch (parseInt(idx)) {
			case 1 :
			case 3 :
				aryIndex--;
				if (aryIndex <= 1) {
					aryIndex = 1;
					node = (idx == 1) ? document.getElementById("MLeft") : document.getElementById("SLeft");
					if (node != null) node.style.visibility = "hidden";
				}
				aryPosition[menuIndex][0] = aryIndex;

				node = (idx == 1) ? document.getElementById("MRight") : document.getElementById("SRight");
				if (node != null) node.style.visibility = "visible";
				break;
			case 2 :
			case 4 :
				aryIndex++;
				if (aryIndex >= (aryPosition[menuIndex].length - 1)) {
					aryIndex = aryPosition[menuIndex].length - 1;
					node = (idx == 2) ? document.getElementById("MRight") : document.getElementById("SRight");
					if (node != null) node.style.visibility = "hidden";
				}
				aryPosition[menuIndex][0] = aryIndex;

				node = (idx == 2) ? document.getElementById("MLeft") : document.getElementById("SLeft");
				if (node != null) node.style.visibility = "visible";
				break;
		}
		// 沒有動畫的移動選單 (no anime)
		//obj.style.left = 0 - parseInt(aryPosition[menuIndex][aryIndex]);
		// 使用動畫的移動選單 (use anime)
		Timer = setInterval ('AnimeMenu("' + obj.id + '", ' + (0 - parseInt(aryPosition[menuIndex][aryIndex])) + ')', 10);
	}

	// 移動選單會有動畫 (anime menu)
	function AnimeMenu(objName, xTo) {
		var xFrom, xOffset;
		myObj = document.getElementById(objName);
		xFrom = parseInt(myObj.style.left);

		if (Math.abs(xFrom - xTo) <= 0) {
			if (Timer != null) {
				clearInterval(Timer);
				Timer = null;
			}
			return;
		}

		if (xFrom != xTo) {
			xOffset = Math.ceil( Math.abs( xTo - xFrom ) / 20 );
			if (xTo < xFrom) xOffset = -xOffset;
			myObj.style.left = parseInt (myObj.style.left) + xOffset;
		}
	}
///////////////////////////////////////////////////////////////////////////////
	function monitorAct(val) {
		var txt = "";
		var res = false;

		return false;
		txt  = "<manifest>";
		txt += "<ticket>" + ticket + "</ticket>";
		txt += "<id>" + nowMenuId + "</id>";
		txt += "</manifest>";
		res = xmlVars.loadXML(txt);
		if (!res) {
			alert(MSG_SysError);
			return false;
		}

		xmlHttp.open("POST", "sysbar_monitor.php", false);
		xmlHttp.send(xmlVars);
		// alert(xmlHttp.responseText);
	}
///////////////////////////////////////////////////////////////////////////////
	var xmlHttp = null, xmlDocs = null, xmlVars = null;
	var menuMIdx = 10000;
	var menuSIdx = 10000;
	var ticket = "";
	var nowMenuId = "";

	/**
	 * 建立一個選項
	 **/
	function buildItem(indent, node) {
		var mnTitle = "", mnTarget = "", mnHref = "", mnKind = "", mnID = "";
		var nodes = null, newNode = null, attr = null;
		var val = 0;
		var re = new RegExp("^javascript:", "ig");

		if ((node == null) || !node.hasChildNodes()) return null;
		// 是否隱藏 (hidden ?)
		attr = node.getAttribute("hidden");
		if ((attr != null) && (attr == "true")) return null;

		if (!node.hasChildNodes()) return null;
		// 取出選單編號 (get menu id)
		attr    = node.getAttribute("id");
		mnID    = (attr == null) ? "" : attr;
		// 取出選單的標題 (get menu title)
		mnTitle = getCaption(node, 'title');
		if (mnTitle == "") mnTitle = MSG_NoTitle;
		// 取出 href 節點 (get href node)
		nodes = node.childNodes;
		for (var i = 0; i < nodes.length; i++) {
			if ((nodes[i].nodeType == 1) && (nodes[i].tagName == "href")) {
				mnHref   = (nodes[i].hasChildNodes()) ? nodes[i].firstChild.data : 'about:blank';
				mnKind   = nodes[i].getAttribute("kind");
				mnTarget = nodes[i].getAttribute("target");
				if (mnTarget == "default") {
					if (typeof(fmDefault) == "undefined") {
						mnTarget = getTargetName();
					} else {
						mnTarget = fmDefault;
					}
				}
				break;
			}
		}

		newNode = document.createElement("a");
		newNode.title = strip_tags(mnTitle);

		if (indent != 0) {
			// 判斷 node 的種類 (check node type)
			switch (parseInt(mnKind)) {
				case 1 :   // 功能 (function)
				case 8 :   // 外部連結 (out site link)
					newNode.href = mnHref;
					if (!re.test(mnHref)) {
						newNode.target = mnTarget;
					}
					newNode.onclick = smMouseEvent;
					break;
				case 2 :   // 教材 (course content)
					newNode.href = "/" + sysbar_sid + "_" + sysbar_csid + mnHref;
					if (!re.test(mnHref)) {
						newNode.target = mnTarget;
					}
					newNode.onclick = function (evnt) {
						smMouseEvent(evnt);
						// return false;
					};
					break;
				case 3 :   // 作業 (homework)
					newNode.href = "javascript:;";
					newNode.onclick = function (evnt) {
						smMouseEvent(evnt);
						goQTI("hw", mnHref, mnTarget);
						return false;
					};
					break;
				case 4 :   // 考試 (exam)
					newNode.href = "javascript:;";
					newNode.onclick = function (evnt) {
						smMouseEvent(evnt);
						goQTI("ex", mnHref, mnTarget);
						return false;
					};
					break;
				case 5 :   // 問卷 (questionnaire)
					newNode.href = "javascript:;";
					newNode.onclick = function (evnt) {
						smMouseEvent(evnt);
						goQTI("qs", mnHref, mnTarget);
						return false;
					};
					break;
				case 6 :   // 議題討論 (subject forum)
				case 9 :   // [群組] 議題討論 ([group] subject forum)
					newNode.href = "javascript:;";
					newNode.onclick = function (evnt) {
						smMouseEvent(evnt);
						// alert(mnTarget);
						goBoard(mnHref, mnTarget);
						return false;
					};
					break;
				case 7 :   // 線上討論 (online chat)
				case 10:   // [群組] 線上討論 ([group] online chat)
					newNode.href = "javascript:;";
					newNode.onclick = function (evnt) {
						smMouseEvent(evnt);
						goChatroom(mnHref);
						return false;
					};
					break;
				default:
			}
			menuSIdx++;
			newNode.onmouseover = smMouseEvent;
			newNode.onmouseout = smMouseEvent;
			newNode.className = "SMenuItemOut";
			newNode.valign = "top";
			newNode.setAttribute("id", "smnItem_" + menuSIdx);
			mnTitle += '<button id="smnBtn_' + menuSIdx + '" style="display:none"></button>';
			// mnTitle  = '<span class="SMenuItemSplit">&nbsp;</span>' + mnTitle;
		} else {
			// 顯示主選單 (show main menu)
			val = menuMIdx + 1;
			newNode.href    = "javascript:;";
			newNode.onclick = function (evnt) {
				attr = this.getAttribute("sysid");
				nowMenuId = (attr == null) ? "" : attr;

				if (typeof(parent.frames[fmDefault])			  != 'undefined' &&
					typeof(parent.frames[fmDefault].sysGotoLabel) != 'undefined')
					parent.frames[fmDefault].sysGotoLabel = ''; // 清除以避免無法切換大項 #1738

				showSubMenu(val);
				return false;
			};
			newNode.onmouseover = mmMouseEvent;
			newNode.onmouseout = mmMouseEvent;
			newNode.className = "MMenuItemFont";
			mnTitle += '<button id="mmnBtn_' + menuMIdx + '" style="display:none"></button>';
		}
		newNode.setAttribute("sysid", mnID);
		newNode.innerHTML = mnTitle;

		return newNode;
	}

	/**
	 * 建立選單
	 **/
	function buildMenu(indent, node) {
		var nodes = null, newNode = null, attr = null;
		var Menu = null;
		var obj = null;
		var idx = 0;

		if (indent > 1) return null;
		if ((node == null) || (!node.hasChildNodes())){
			return false;
		}

		nodes = node.childNodes;

		Menu = document.createElement("table");
		Menu.setAttribute("id", "mngp_" + menuMIdx);
		Menu.border = "0";
		Menu.cellSpacing = (indent == 0) ? "2" : "0";
		Menu.cellPadding = (indent == 0) ? "2" : "0";
		Menu.style.display = (indent == 0) ? "block" : "none";
		Menu.insertRow(0);
		for (var i = 0; i < nodes.length; i++) {
			if ((nodes[i].nodeType != 1) || (nodes[i].tagName != "item")) continue;
			newNode = buildItem(indent, nodes[i]);
			if (newNode == null) continue;

			if (indent == 0) menuMIdx++;
			buildMenu(indent + 1, nodes[i]);

			idx = Menu.rows[0].cells.length;
			Menu.rows[0].insertCell(idx);
			Menu.rows[0].cells[idx].noWrap = true;
			if (indent == 0) Menu.rows[0].cells[idx].setAttribute("id", "mnItem_" + menuMIdx);

			Menu.rows[0].cells[idx].className = (indent == 0) ? "MMenuItemOut" : "SMenuItemOut";
			if (indent == 0) {
				Menu.rows[0].cells[idx].className = "MMenuItemOut";
			} else {
				Menu.rows[0].cells[idx].className = "SMenuItemOut";
				Menu.rows[0].cells[idx].innerHTML = '<pre class="SMenuItemSplit">&nbsp;</pre>';
			}
			Menu.rows[0].cells[idx].appendChild(newNode);
		}
		if (indent == 0) {
			obj = document.getElementById("MMenu");
		} else {
			obj = document.getElementById("SMenu");
		}
		if (obj != null) {
			obj.appendChild(Menu);
			if (indent == 0) {
				// 主選單加入圖示後偏移的修正 (Main Menu)
				obj.offsetParent.style.top = 68 - parseInt(obj.offsetHeight);
				nodes = obj.offsetParent.getElementsByTagName("img");
				if ((nodes != null) && (nodes.length > 0)) {
					for (var i = 0; i < nodes.length; i++) {
						attr = nodes[i].getAttribute("align");
						if ((attr == null) || (attr == "")) {
							nodes[i].align = "absmiddle";
							nodes[i].setAttribute("align", "absmiddle");
						}
					}
				}
			}
		}
	}

	function getSysGotoLabel() {
		/*
		 * 自動切換為哪個功能項 add by Wiseguy 2004/11/09
		 */
		var ii = new Array(1, 0);
		eval('var brother = parent.' + self.name.replace(/_sysbar$/, '_main') + ';');
		try
		{
			var xx = brother.location.href;
		}
		catch(e)
		{
			var xx = '';
		}
		var x = '';
		var bb = self.location.href.split('/');
		if (xx.search(/^http:\/\//) === 0) {
			var aa = xx.split('/');
			if ((aa[2] == bb[2]) && typeof(brother.sysGotoLabel) != 'undefined') {
				x = brother.sysGotoLabel;
			}
		}
		if ((x == "") && (typeof sysGotoLabel == "string") && (sysGotoLabel != "")) {
			x = sysGotoLabel;
		}
		return x;
	}

	/**
	 * 解析 sysbar (parse sysbar)
	 **/
	function parseSysbar(func) {
		var obj = null, node = null, nodes = null;

		if (xmlDocs == null) {
			alert(MSG_SysError);
			return false;
		}

		xmlDocs.setProperty("SelectionLanguage", "XPath");
		if (window.opera) {
			nodes = xmlDocs.getElementsByTagName("items");
			node = ((nodes != null) && (nodes.length > 0)) ? nodes[0] : null;
		} else {
			node = xmlDocs.selectSingleNode("//items");
		}
		// 建立選單 (build menu)
		if (node != null) {
			obj = document.getElementById("MMenu");
			if (obj != null) obj.innerHTML = "";
			obj = document.getElementById("SMenu");
			if (obj != null) obj.innerHTML = "";
			menuMIdx = 10000;
			menuSIdx = 10000;
			buildMenu(0, node);
			menuMIdx = 10000;
			menuSIdx = 10000;

			// over
			// showSubMenu(10001, func);
			var x = getSysGotoLabel();
			if ((typeof x == "undefined") || (x == ""))
			{
				if (typeof func != "undefined") sysGotoLabel = func;
			}
			else
			{
				func = x;
			}
			chgMenuItem(func, false);
			rePosition();
		}
	}

	var sysbar_env  = "";
	var sysbar_sid  = 0;
	var sysbar_csid = 0;
	var sysbar_caid = 0;
	function parseParam() {
		var obj = null, node = null, attr = null;
		var res = "";
		// 取得一些資料
		sysbar_env = getNodeValue(xmlDocs.documentElement, "env");

		res = getNodeValue(xmlDocs.documentElement, "school_id");
		sysbar_sid = parseInt(res);

		res = getNodeValue(xmlDocs.documentElement, "course_id");
		sysbar_csid = parseInt(res);

		res = getNodeValue(xmlDocs.documentElement, "class_id");
		sysbar_caid = parseInt(res);

		// 身份確認
		node = xmlDocs.selectSingleNode("//teach");
		obj = document.getElementById("admOffice");
		if (obj != null) {
			if (node == null) {
				obj.style.display = "none";
			} else {
				attr = node.getAttribute("have");
				obj.style.display = (attr == "true") ? "" : "none";
			}
			node = document.getElementById("admOffice1");
			if (node) node.style.display = obj.style.display;
		}
	}

	/**
	 * 載入 sysbar 的 XML 設定 (Load sysbar setting)
	 **/
	function loadSysbar(uri, extra, func) {
		var txt = "";
		var res = false;
		var err = null, obj = null;

		if ((typeof(xmlHttp) != "object") || (xmlHttp == null)) xmlHttp = XmlHttp.create();
		if ((typeof(xmlVars) != "object") || (xmlVars == null)) xmlVars = XmlDocument.create();
		if ((typeof(xmlDocs) != "object") || (xmlDocs == null)) xmlDocs = XmlDocument.create();
		if (uri == "") return false;
		txt = "<manifest><ticket>" + ticket + "</ticket>" + extra + "</manifest>";
		res = xmlVars.loadXML(txt);
		if (!res) {
			alert(MSG_SysError);
			return false;
		}

		xmlHttp.open("POST", uri, false);
		xmlHttp.send(xmlVars);
		// alert(xmlHttp.responseText);

		if (xmlHttp.responseText == "") {
			rePosition();
			return true;
		}

		txt = "";
		switch (xmlHttp.responseText) {
			case 'needVar'       : txt = MSG_NEED_VARS;     break;
			case 'DataError'     : txt = MSG_DATA_ERROR;    break;
			case 'IPLimit'       : txt = MSG_IP_DENY;       break;
			case 'AdminRole'     : txt = MSG_ADMIN_ROLE;    break;
			case 'DirectorRole'  : txt = MSG_DIRECTOR_ROLE; break;
			case 'TeacherRole'   : txt = MSG_TEACHER_ROLE;  break;
			case 'StudentRole'   : txt = MSG_STUEDNT_ROLE;  break;
			case 'SchoolIDError' : txt = MSG_SLID_ERROR;    break;
			case 'DirectIDError' : txt = MSG_CAID_ERROR;    break;
			case 'CourseIDError' : txt = MSG_CSID_ERROR;    break;
			case 'CourseDelete'  : txt = MSG_CS_DELTET;     break;
			case 'CourseClose'   : txt = MSG_CS_NOT_OPEN;   break;
		}

		if (txt != "") {
			obj = document.getElementById("MMenu");

			if (obj != null) obj.innerHTML = '<span class="sysErrorFont">' + txt + '</span>';
			obj = document.getElementById("SMenu");
			if (obj != null) obj.innerHTML = "";
			obj = getTarget();
			if (obj != null) obj.location.replace("about:blank");
			if (typeof(parent.FrameRows) == "string") {
				switch (this.name) {
					case "s_sysbar": if (parent.FrameRows == "*,0,0,0,0") alert(txt); break;
					case "c_sysbar": if (parent.FrameRows == "0,*,0,0,0") alert(txt); break;
					default:
						alert(txt);
				}
			}
			rePosition();
			return false;
		}

		res = xmlDocs.loadXML(xmlHttp.responseText);
		if (!res) {
			xmlDocs = XmlDocument.create();
			xmlDocs.loadXML('<manifest />');
			rePosition();
			return false;
		}
		// 尋找 xmlHttp.responseText  有無 <error_msg>StudentRole</error_msg>
		var error_msg = '';
		error_msg = getNodeValue(xmlDocs.documentElement, "error_msg");
		if (error_msg != "") alert(MSG_STUEDNT_ROLE);

		ticket = getNodeValue(xmlDocs.documentElement, "ticket");
		parseParam();
		parseSysbar(func);
		// rePosition();
		return true;
	}

///////////////////////////////////////////////////////////////////////////////
	function chgStyle() {
		return;
		var sty = document.getElementsByTagName("link");
		if (sty) {
			for (var i = sty.length - 1; i > 0; i--) {
				sty[i].parentNode.removeChild(sty[i]);
			}
			var nSty = document.createElement("link");
			nSty.setAttribute("rel", "stylesheet");
			nSty.setAttribute("type", "text/css");
			nSty.setAttribute("href", "/lib/sysbar_style.php");
			document.getElementsByTagName("head")[0].appendChild(nSty);
		}
	}
///////////////////////////////////////////////////////////////////////////////
	function chgMenuItem(sysid, blnClickSM) {
		var node = null, attr = null, nodes = null, obj = null, items = null;
		var pid = "";
		node = xmlDocs.selectSingleNode('//item[@id="' + sysid + '"]');
		if (node) {
			if (node.parentNode.nodeName == "items") {
				obj = document.getElementById("MMenu");
				nodes = obj.getElementsByTagName("a");
				for (var i = 0; i < nodes.length; i++) {
					attr = nodes[i].getAttribute("sysid");
					if (attr == null) continue;
					if (attr == sysid) {
						if (isIE) nodes[i].click();
						if (isMZ) {
							items = nodes[i].getElementsByTagName("button");
							if (items.length > 0) items[0].click();
						}
						break;
					}
				}
			} else if (node.parentNode.nodeName == "item") {
				if (typeof(blnClickSM) == "undefined") {
					sysGotoLabel = sysid;
					blnClickSM = false;
				}
				if (!blnClickSM) {
					pid = node.parentNode.getAttribute("id");
					obj = document.getElementById("MMenu");
					nodes = obj.getElementsByTagName("a");
					for (var i = 0; i < nodes.length; i++) {
						attr = nodes[i].getAttribute("sysid");
						if (attr == null) continue;
						if (attr == pid) {
							if (isIE) nodes[i].click();
							if (isMZ) {
								items = nodes[i].getElementsByTagName("button");
								if (items.length > 0) items[0].click();
							}
							break;
						}
					}
				}
				else {
					obj = document.getElementById("SMenu");
					nodes = obj.getElementsByTagName("a");
					for (var i = 0; i < nodes.length; i++) {
						attr = nodes[i].getAttribute("sysid");
						if (attr == null) continue;
						if (attr == sysid) {
							if (isIE) nodes[i].click();
							if (isMZ) {
								smMouseEvent({
									"currentTarget" : nodes[i],
									"type"          : "click"
								});
								var re = new RegExp("^javascript:", "ig");
								if (re.test(nodes[i].href)) {
									var str = nodes[i].href.replace(re, "");
									eval(str);
								} else {
									if (nodes[i].target == "_blank") {
										window.open(nodes[i].href, nodes[i].target);
									} else {
										eval("parent." + nodes[i].target + ".location.href = '" + nodes[i].href + "';");
									}
								}
/*
								if (isFF) {
									var evnt = new Object();
									evnt["currentTarget"] = nodes[i];
									evnt["type"] = "click";
									smMouseEvent(evnt);
									var re = new RegExp("^javascript:","ig");
									if (re.test(nodes[i].href)) {
										var str = nodes[i].href.replace(re, '');
										eval(str);
									} else {
										if (nodes[i].target == "_blank") {
											window.open(nodes[i].href, nodes[i].target);
										} else {
											eval("parent." + nodes[i].target + ".location.href = '" + nodes[i].href + "';");
										}
									}
								} else {
									try {
										nodes[i].click();
									}
									catch (ex)
									{
										items = nodes[i].getElementsByTagName("button");
										alert(items.length);
										if (items.length > 0) items[0].click();
										alert(3);
									}
 								}
*/
							}
							break;
						}
					}
				}

			}
		} else {
			node = xmlDocs.selectSingleNode('//items/item/item');
			if (node) chgMenuItem(node.getAttribute("id"), false);
			// alert("Menu item do not exist!");
		}
	}
///////////////////////////////////////////////////////////////////////////////
	function goCourse(csid, env, func) {
		var txt = "";
		var res = false;
		var selcourse, isDeny = true;

		if (csid == "") return false;
		if ((selcourse = document.getElementById('selcourse')) != null)
		{
			var options = selcourse.getElementsByTagName('option');
			for(var i=0; i<options.length; i++)
			{
				if (options[i].value == csid) {isDeny = false; break;}
			}
			if (isDeny) return false;
		}

		txt  = "<course_id>" + csid + "</course_id>";
		txt += "<env>" + env + "</env>";
		res = loadSysbar(baseUri + "goto_course.php", txt, func);
		if (res) {
			obj = document.getElementById("selcourse");
			if (obj != null) syncValue(obj, csid);
		}
		
		logoutChatroom();
		chgStyle();
		env2short();
		return res;
	}

	/**
	 * 辦公室/教室 切換環境
	 */
	function goEnv(csid, env, func) {
		// 先判斷目前功能是否有未存檔的操作
		var tmp = eval('parent.'+getTargetName());
		if (typeof(tmp.notSave) == 'boolean' && tmp.notSave)
			if (!confirm(tmp.MSG_EXIT)) return;
		else 
			tmp.notSave = false;
			
		switch(env) {
			case 2 : env = 'teach'		; break;
			case 3 : env = 'direct'		; break;
			case 4 : env = 'academic'	; break;
			default: env = 'learn';
		}
		
		if (csid == "") return false;

		if ((typeof(xmlVars) != "object") || (xmlVars == null)) xmlVars = XmlDocument.create();
		if ((typeof(xmlHttp) != "object") || (xmlHttp == null)) xmlHttp = XmlHttp.create();
		if (typeof(func) == 'undefined') func = '';
		txt = "<manifest><course_id>" + csid + "</course_id>" + "<env>" + env + "</env>"+ "<func>" + func + "</func>" + "</manifest>";
		res = xmlVars.loadXML(txt);
		if (!res) {
			alert(MSG_SysError);
			return false;
		}
		xmlHttp.open("POST", baseUri + "goto_env.php", false);
		xmlHttp.send(xmlVars);

		if (xmlHttp.responseText == 'true') {
			uri = '/' + env + '/index.php';
			parent.window.location.replace(uri);
		}
	}

	/**
	 * 切換班級
	 **/
	function goClass(caid) {
		var obj = null;
		var sty = "";
		var cnt = 0;
		var txt = "";

		if (caid == "") return false;
		txt = "<class_id>" + caid + "</class_id>";
		loadSysbar(baseUri + "goto_class.php", txt);
		// 同步課程下拉清單
		obj = document.getElementById("selcourse");
		if (obj != null) syncValue(obj, caid);
		env2short();
	}

	/**
	 * 進討論板
	 * @param string val : 討論板編號
	 **/
	var boardWin = null;
	function goBoard(val, target) {
		var txt = "";
		var res = false;

		if (val == "") return false;
		if ((typeof(target) == "undefined") || (target == "")) target = fmDefault;
		txt = "<manifest><board_id>" + val + "</board_id></manifest>";
		res = xmlVars.loadXML(txt);
		if (!res) {
			alert(MSG_SysError);
			return;
		}

		xmlHttp.open("POST", baseUri + "goto_board.php", false);
		xmlHttp.send(xmlVars);
		// alert(xmlHttp.responseText);
		txt = xmlHttp.responseText;
		if (txt != "") {
			switch (txt) {
				case "Bad_ID"   : alert(MSG_BAD_BOARD_ID);    break;
				case "Bad_Range": alert(MSG_BAD_BOARD_RANGE); break;
				case "board_notopen": alert(MSG_BOARD_NOTOPEN); break;
				case "board_close": alert(MSG_BOARD_CLOSE); break;
				case "board_disable": alert(MSG_BOARD_DISABLE); break;
				case "board_taonly": alert(MSG_BOARD_TAONLY); break;
				default:
			}
			return;
		}
		if (target == "_blank") {
			boardWin = window.open("/forum/index.php", "_blank", "width=780,height=550,toolbar=0,location=0,status=0,menubar=0,directories=0,scrollbars=1,resizable=1");
		} else {
			eval("parent." + target + ".location.replace('/forum/index.php')");
		}
	}

	/**
	 * 進討論室
	 * @param string val : 討論室編號
	 * @return
	 **/
	var chatWin = null;
	function goChatroom(val) {
		var res = "";
		var node = null;

		if ((typeof chatWin == "object") && (chatWin != null) && !chatWin.closed) {
			alert(MSG_IN_CHAT_ROOM);
			chatWin.focus();
		} else {
			xmlVars.loadXML("<manifest><chat_id>" + val + "</chat_id></manifest>");
			xmlHttp.open("POST", baseUri + "goto_chat.php", false);
			xmlHttp.send(xmlVars);
			if (xmlVars.loadXML(xmlHttp.responseText)) {
				node = xmlVars.selectSingleNode("//msg");
				res = (node.hasChildNodes()) ? node.firstChild.nodeValue : "";
				if (res != "") {
					alert(res);
					return false;
				}
				node = xmlVars.selectSingleNode("//uri");
				res = (node.hasChildNodes()) ? node.firstChild.nodeValue : "about:blank";
				chatWin = window.open(res, "_blank", "width=800,height=500,toolbar=0,location=0,status=0,menubar=0,directories=0,resizable=1");
			}
		}
	}
	
	/**
	 * 切換課程/環境/班級時, 強制登出討論室
	 */
	function logoutChatroom()
	{
		if ((typeof chatWin == "object") && (chatWin != null) && !chatWin.closed)
		{
			chatWin.focus();	// 先focus, 以讓跳出的訊息可以在上層
			chatWin.close();
		}
	}

	var qtiWin = null;
	function goQTI(tp, val, target) {
		var txt = "";

		txt = "/learn/goto_qti.php?tp=" + tp + "&v=" + val;
		if (target == "_blank") {
			qtidWin = window.open(txt, "_blank", "width=780,height=550,toolbar=0,location=0,status=0,menubar=0,directories=0,scrollbars=1,resizable=1");
		} else {
			eval("parent." + target + ".location.replace('" + txt + "')");
		}
	}

	var loginDailog = null;
	function login() {
		if ((loginDailog != null) && !loginDailog.closed) {
			loginDailog.focus();
		} else {
			var rnd = Math.ceil(Math.random() * 100000);
			loginDailog = window.open("login.php", "win" + rnd, "top=250,left=350,width=300,height=150,toolbar=0,location=0,status=0,menubar=0,directories=0,resizable=1,scrollbar=1");
			// loginDailog = showDialog("/learn/login.php", false , "", true, "200px", "200px", "300px", "150px", "status=0, resizable=1, scrollbars=1");
		}
	}
///////////////////////////////////////////////////////////////////////////////
	/**
	 * 初始化整個 sysbar (init sysbar)
	 **/
	function initSysbar(val) {
		var res = false;
		var dsid;
		chkBrowser();
		var t = window.location.pathname.split("/");
		t[t.length - 1] = "";
		baseUri = t.join("/");

		// 檢查瀏覽器 (check browser)
		if (!isIE && !isMZ) {
			alert(MSG_NotSupportBrowser);
			// return false;
		}
		if ((typeof(xmlHttp) != "object") || (xmlHttp == null)) xmlHttp = XmlHttp.create();
		if ((typeof(xmlVars) != "object") || (xmlVars == null)) xmlVars = XmlDocument.create();
		if ((typeof(xmlDocs) != "object") || (xmlDocs == null)) xmlDocs = XmlDocument.create();
		res = loadSysbar(val, "");
		if (res) {
			dsid = getNodeValue(xmlDocs.documentElement, "dsid");
			obj = document.getElementById("selcourse");
			if (obj != null) syncValue(obj, dsid);
		}
		env2short();
	}

	window.onunload = function () {
		if ((chatWin != null) && !chatWin.closed) chatWin.close();
		if ((boardWin != null) && !boardWin.closed) boardWin.close();
	};

	window.onresize = function () {
		rePosition();
	};
	
	function updateCourseList()
	{
		if (this.name != 's_sysbar') return;
		obj = document.getElementById("selcourse");
		if (obj != null)
		{
			xmlHttp.open("POST", 'getCourseList.php', false);
			xmlHttp.send();
		
			if (xmlHttp.responseText != '')
				obj.outerHTML = xmlHttp.responseText;
		}
	}