//	Web Utility functions
//	문성광, 2006-08-04, 2009-05-26
var WebUtil = new function()
{
	this.getContextPath = function(name)
	{
		var path = '/' + location.pathname.split('/')[location.pathname.charAt(0)=='/' ? 1 : 0];
		return typeof(name) != 'undefined' ? path + '/' + name : path;
	};

	this.getContextUrl= function(name)
	{
		return location.protocol + '//' + location.host + this.getContextPath(name);
	};

	this.getCurrentUrl= function (name)
	{
		var path = location.href.substring(0, location.href.lastIndexOf('/') + 1);
		return typeof(name) != 'undefined' ? path + name : path;
	};

	function setButtons(all, disabled)
	{
		function toUpper(value) { return value != null ? value.toUpperCase() : null }
		for (var i = 0, iend=all.length; i<iend; i++)
		{
			var obj = all[i];
			if ((obj.tagName=='INPUT' && toUpper(obj.type) == 'BUTTON') || (toUpper(obj.tagName)=='BUTTON'))
				obj.disabled = disabled;
		}
	}

    /**
     * body 태그 내의 모든 버튼을 diable 한다
     */
	this.disableButtons = function ()
	{
		setButtons(document.all, true);
	};

    /**
     * body 태그 내의 모든 버튼을 enable 한다
     */
	this.enableButtons = function()
	{
		setButtons(document.all, false);
	};

	this.getChecked = function(name, msg)
	{
		var chks = document.getElementsByName(name);
		if (chks == null)
			return false;

		var values = [];
		for (var i=0, iend=chks.length; i< iend; i++)
			if (chks[i].checked)
				values.push(chks[i].value);

		if (values.length == 0)
			alert(typeof(msg) == 'undefined' || msg == null ? '항목을 선택합니다.' : msg);
		return values;
	};

	this.submit =  function(name, msg, action, valuesName)
	{
		var values = [];
		if (name != null)
		{
			values = this.getChecked(name);
			if (values.length == 0)
				return;
		}
		if(msg == null || confirm(msg))
		{
			if (typeof(valuesName) != 'undefined')
			{
				var val = document.getElementsByName(valuesName);
				if (val != null)
					val[0].value = values.join(',');
			}
			this.disableButtons();
			document.forms[0].action=action;
			document.forms[0].submit();
		}
	};

    /**
     * 지정한 이름의 checkbox 가 하나 이상 선택되었는지 확인하고, 선택된 경우 확인 후 mode 파라미터에 값을 설정하여 submit 한다.
     * @param name checkbox 명
     * @param notSelectedMsg checkbox 가 선택되지 않았을 때 사용할 문구. null 이면 기본 문구('항목을 선택하십시오')를 사용함.
     * @param confirmMsg checkbox 에 선택된 항목이 있어서 submit 하기 전에 확인 단계에서 사용할 문구
     * @param mode mode 파라미터에 지정할 값
     * @param valuesName checkbox 에 선택한 항목의 값을 ',' 로 구분하여 저장할 폼 변수 명. 없으면 무시.
     */
    this.checkPost = function(name, notSelectedMsg, confirmMsg, mode, valuesName)
    {
        var values = [];
        if (name != null)
        {
            values = this.getChecked(name, notSelectedMsg);
            if (values.length == 0)
                return;
        }
        if(confirmMsg == null || confirm(confirmMsg))
        {
            if (typeof(valuesName) != 'undefined')
            {
                var val = document.getElementsByName(valuesName);
                if (val != null)
                    val[0].value = values.join(',');
            }
            this.disableButtons();
            var frm = document.forms[0];
            frm.mode.value = mode;
            frm.submit();
        }
    };

	this.buildRequestParam = function(params)
	{
		var vals = [];
		for (var param in params)
		{
			var obj = params[param];
			if (Object.prototype.toString.call(obj) == '[object Array]')
				for (var i= 0, iend=obj.length; i<iend; i++)
					vals.push(param + '=' + encodeURIComponent(obj[i]));
			else
				vals.push(param + '=' + encodeURIComponent(obj));
		}
		return vals.join('&');
	};

	this.getDocument = function(method, url, params, headers)
	{
		var http = typeof(XSLTProcessor) =='undefined' ? new ActiveXObject("Microsoft.XMLHTTP") : new XMLHttpRequest();
		http.open(method, url, false);
		http.setRequestHeader("Content-Type", "application/x-www-form-urlencoded;charset=utf-8");
		http.setRequestHeader("X-Requested-With", "XMLHttpRequest");
		if (typeof(headers) != 'undefined')
			for (var header in headers)
				http.setRequestHeader(header, headers[header]);

		if (method == 'GET' || typeof(params)=='undefined')
			http.send();
		else
			http.send(this.buildRequestParam(params));

		return http.responseText;
	};

	this.getDocumentByPost = function(url, params)
	{
		try
		{
			return this.getDocument("POST", url, params);
		}
		catch(e)
		{
			alert(e.message);
			return null;
		}
	};

	this.parseXML = function(xml)
	{
		function loadXml(xml)
		{
			if (typeof(XSLTProcessor) =='undefined')
            {
                var doc = new ActiveXObject("Microsoft.XMLDOM");
                doc.async = false;
                doc.loadXML(xml);
                return doc;
            }
			else
                return new DOMParser().parseFromString(xml, "text/xml");
		}

		return xml != '' ? loadXml(xml) : null;
	};

	this.parseJSON = function(json)
	{
        return eval('(' + json + ')');
	};

	//	url: request url
	//	return: documentElement if successfull
	this.getXmlDocument = function(url)
	{
		try
		{
			return this.parseXML(this.getDocument("GET", url));
		}
		catch(e)
		{
			alert(e.message);
			return null;
		}
	};

	this.getXMLDocumentByPost = function(url, params)
	{
		try
		{
            return this.parseXML(this.getDocument("POST", url, params));
		}
		catch(e)
		{
			alert(e.message);
			return null;
		}
	};

	this.getJSONByPost = function(url, params)
	{
		try
		{
			var obj = this.parseJSON(this.getDocument("POST", url, params));
			if (obj['exception'] != undefined)
			{ //noinspection ExceptionCaughtLocallyJS
				throw obj['exception']['message'];
			}
			return obj['result'];
		}
		catch(e)
		{
			alert('오류가 발생했습니다:\n\n' + (e.message != undefined ? e.message : e));
			return null;
		}
	};

	this.buildParameters = function(params)
	{
		var obj = {}, keys = params.split(',');
		for (var i=0, iend=keys.length; i<iend; i++)
		{
			var elem = $$(keys[i]);
			if (elem == null)
				alert("No element exist: " + keys[i]);
			else
				obj[keys[i]] = elem.value;
		}
		return obj;
	};

	this.centerWindow = function()
	{
		window.moveTo((screen.width - window.document.body.scrollWidth)/2, (screen.height - window.document.body.scrollHeight)/2);
	};

	this.buildTreeMenu = function(id, prefix)
	{
		function indent(sb, level, prefix)
		{
			for (var i=0; i<level; i++)
				sb.append("<img align=absmiddle border=0 src='").append(prefix).append("../img/blank.gif'>");
		}

		function hasChildMenu(obj)
		{
			for (var i=0, iend=obj.childNodes.length; i<iend; i++)
				if (obj.childNodes.item(i).tagName=='DIV')
					return true;
			return false;
		}

		function build(sb, obj, level, prefix)
		{
			for (var i=0, iend=obj.childNodes.length; i<iend; i++)
			{
				var node = obj.childNodes.item(i), key = null;
				if (node.tagName=='DIV')
				{
					sb.append("<div class='sidemenu_item' style='cursor:default'>");
					indent(sb, level, prefix);
					var hasChild = hasChildMenu(node);
					if (hasChild)
					{
						key = "div" + level + "_" + i;
						if (node.className=='collapsable')
							sb.append("<img align='middle' border=0 src='").append(prefix).append("../img/prov/pd_minus.gif' style='cursor:pointer' onclick=\"toggle(this,'").append(key).append("')\">&nbsp;");
						else if (node.className=='expanded')
							sb.append("<img align='middle' border=0 src='").append(prefix).append("../img/prov/pd_minus.gif'>&nbsp;");
						else
							sb.append("<img align='middle' border=0 src='").append(prefix).append("../img/prov/pd_plus.gif' style='cursor:pointer' onclick=\"toggle(this,'").append(key).append("')\">&nbsp;");
					}
					else
						sb.append("<img align='middle' border=0 src='").append(prefix).append("../img/prov/pd_none.gif'>&nbsp;");
					if (node.getAttribute('src') != null)
						sb.append("<a href='#'><span id='item' name='item' ")
							.append(node.getAttribute('value') != null ? "value='" + node.getAttribute('value') + "'" : "")
							.append(" class='sidemenu_item' onclick=\"go(this, '")
							.append(node.getAttribute('src')).append("')\">")
							.append(node.getAttribute('title')).append("</span></a>");
					else
						sb.append("<span class='sidemenu_group'>").append(node.getAttribute('title')).append("</span>");
					sb.append("</div>");
					if (hasChild)
					{
						if (node.className=='collapsable' || node.className=='expanded')
							sb.append("<div id='").append(key).append("' style='display:block'>");
						else
							sb.append("<div id='").append(key).append("' style='display:none'>");
						build(sb, node, level + 1, prefix);
						sb.append("</div>");
					}
				}
				else if (node.tagName=='HR')
					sb.append("<hr>");
			}
			return sb;
		}

		$$(id).innerHTML = build(new StringBuffer(), $$(id), 0, typeof(prefix)=='undefined' ? '' : prefix).toString();
		var items = document.getElementsByName('item');
		for (var i=0, iend=items.length; i<iend; i++)
			if (items[i].parentElement.style.display != 'none')
			{
				items[i].onclick();
				break;
			}
	};

	this.addOptions = function(selected, available)
	{
		var sels = $$(selected).options;
		available = $$(available);
		if (available.tagName=='SELECT')
		{
			var avails = $$(available).options;
			for (var i=0, iend=avails.length; i<iend; i++)
				if (avails[i].selected)
				{
					var found = false, avail = avails[i];
					for (var j=0, jend=sels.options.length; j<jend; j++)
						if (sels[j].value==avail.value)
						{
							found = true;
							break;
						}
					if (!found)
						sels[sels.length] = new Option(avail.text, avail.value);
				}
		}
		else
		{	//	input 으로 간주
			var avail = available.value.trim();
			if (avail.length > 0)
			{
				for (var j=0, jend=sels.options.length; j<jend; j++)
					if (sels[j].text==avail)
						return;
				sels[sels.length] = new Option(avail, avail);
			}
		}
	};

	this.deleteOptions = function(selected)
	{
		var sels = $$(selected).options;
		for (var i=sels.options.length-1; i>=0; i--)
			if (!sels[i].disabled && sels[i].selected)
				sels[i] = null;
	};

	this.getSession = function()
	{
		var session = window.top['_im_session_'];
		if (session == undefined)
			window.top['_im_session_'] = session = {};
		return session;
	};

	this.setSessionValue = function(key, value)
	{
		this.getSession()[key] = value;
	};

	this.getSessionValue = function(key, defaultValue)
	{
		var value = this.getSession()[key];
		return value != undefined ? value : defaultValue;
	};

    /**
     * 지정한 이름의 checkbox 를 checked 값으로 선택 또는 선택 해제한다. 주로 목록 테이블에서 전체 항목을 선택 또는 선택 해제하는 checkbox 에서 사용한다.
     * <pre><code>
     *     &lt;input type=checkbox onclick="WebUtil.toggleChecks('chk', this.checked);">
     * </code></pre>
     * @param name checkbox 명
     * @param checked 체크 여부
     */
    this.toggleChecks = function(name, checked)
    {
        var chks = document.getElementsByName(name);
        if (chks != null)
            for (var i=0, iend=chks.length; i<iend; i++)
                chks[i].checked = checked;
    };

    this.autoHeightIFrame = function(ctl)
    {
        setTimeout(function() { ctl.style.height = (ctl.contentWindow.document.body.scrollHeight + 20) + 'px'; }, 1)
    };

	this.resizeTree = function(id, trees)
	{
		var c = $$(id);
		c.style.height = '1px';
		if (typeof(trees) != 'undefined')
			for (var i= 0, iend=trees.length; i<iend; i++)
				trees[i].resize();

		c.style.height = c.clientHeight + 'px';
		if (typeof(trees) != 'undefined')
			for (i= 0, iend=trees.length; i<iend; i++)
				trees[i].resize();
	};

	this.toggleDetail = function(elem)
	{
		var row = $$(elem).parent().parent().next();
		row.style.display = row.style.display == 'none' ? 'table-row' : 'none';
	};

	this.toggleMsg = function(elem)
	{
		var row = $$(elem).parent().parent().next();
		row.style.display = row.style.display == 'none' ? 'table-row' : 'none';
	};

	this.toggleNextMsg = function(elem)
	{
		var row = $$(elem).parent().parent().next().next();
		row.style.display = row.style.display == 'none' ? 'table-row' : 'none';
	};

	this.toggleExpand = function(elem, action, mode, parentKey, params, func)
	{
		this.toggleRow(elem, $$(elem).parent().parent().next().next(), action, mode, parentKey, params, func);
	};

	this.toggleExpand2 = function(elem, action, mode, parentKey, params, func)
	{
		this.toggleRow(null, $$(elem).parent().parent().next(), action, mode, parentKey, params, func);
	};

	this.toggleRow = function(elem, div, action, mode, parentkey, params, func)
	{
		var displayed = div.style.display != 'none';
		div.style.display = displayed ? 'none' : 'table-row';
		if (elem != null)
			elem.src = displayed ? '../../img/plus.gif' : '../../img/minus.gif';
		var td = $$(div).first().next();
		if (td.innerText.startsWith('...'))
		{
			if (typeof(params) == 'undefined')
				params = {};
			params.mode = mode;
			if (parentkey != null)
				params[parentkey] = td.id;
			if (typeof(func) != 'undefined')
				func(params, td);

			window.onload = null;

			td.innerHTML = this.getDocumentByPost(this.getCurrentUrl(action), params);
			var elems = td.getElementsByTagName("SCRIPT");
			for (var i= 0, iend=elems.length; i<iend; i++)
				execScript(elems[i].innerHTML);

			if (typeof(window.onload) == 'function')
				window.onload();
		}
	};


	this.check = function(name, ctrl)
	{
		var chks = document.getElementsByName(name);
		if (chks != null)
			for (var i=0, iend=chks.length; i<iend; i++)
				chks[i].checked = ctrl.checked;
	}

};

//	IM Related functions
//	문성광, 2006-08-04, 2009-05-26
var IMUtil = new function()
{
	//	id: 사용자 ID. 필수
	//	pwd: 암호 입력 컨트롤. 필수
	//	pwd2: 암호 확인 입력 컨트롤. optional
	//	old: 이전 암호 입력 컨트롤. optional
	//	max: 최대 암호 문자열 길이. optional(default:30)
	//	optional: 암호 값이 지정되지 않을 수 있는 경우 여부. optional(default:false)
	//	useform: 폼의 input 태그의 값을 이용하여 정보를 추가하는지 여부. optional(default:false)
	//	options: 추가 정보 저장 object. optional
	this.isValidPassword = function(id, pwd, pwd2, old, max, optional, useform, options)
	{
		function buildParam(all)
		{
			function toUpper(value) { return value != null ? value.toUpperCase() : null }

			var params = {};
			for (var i = 0, iend=all.length; i<iend; i++)
			{
				var obj = all[i];
				if (typeof(obj.name) != 'undefined' && obj.name.length > 0 && obj.tagName=='INPUT')
				{
					var type = toUpper(obj.type);
					if (type == 'TEXT' || type == 'HIDDEN' || ((type == 'CHECKBOX' || type == 'RADIO') && obj.checked))
						params[obj.name] = obj.value;
				}
			}
			return params;
		}

		if (max == null || max == undefined)
			max = 30;
		if (optional == null || optional == undefined)
			optional = false;
		if (useform == null || useform == undefined)
			useform = false;

		if (old != null && old != undefined && !isValid(old, EXPR_STRING, max, '이전 암호', '이전 암호를 입력합니다.')) return false;
		if (!isValid(pwd, EXPR_STRING, max, '암호', optional ? null : '암호를 입력해야 합니다.')) return false;
		if (pwd2 != null && pwd2 != undefined && pwd.value != pwd2.value)
		{
			alert('입력한 암호가 틀립니다. 다시 입력합니다.');
			pwd2.focus();
			return false;
		}

		if (pwd.value != '')
		{
			var params = useform ? buildParam(document.all) : {};
			params.id = id;
			params.pwd = pwd.value;
			if (old != null && old != undefined)
				params.old = old.value;
			if (options != null && options != undefined)
				for (var key in options)
					params[key] = options[key];
			//	get domain org related typed groups
			var doc = WebUtil.getXMLDocumentByPost('/' + location.pathname.split('/')[location.pathname.charAt(0)=='/' ? 1 : 0] + '/pwdcheck.do', params);
			var node = doc.selectSingleNode('/result');
			var value = node.getAttribute('value');
			if (value == 'false')
			{
				alert(node.getAttribute('msg'));
				return false;
			}
		}

		return true;
	}
};

var Xml = new function()
{
	this.loadXmlDoc = function(xml)
	{
		if (typeof(XSLTProcessor) =='undefined')
        {
            var doc = new ActiveXObject("Microsoft.XMLDOM");
            doc.async = false;
            doc.loadXML(xml);
            return doc;
        }
        else
			return new DOMParser().parseFromString(xml, "text/xml");
	};

	this.getXmlDoc = function(method, url, params, headers)
	{
		function buildRequestParam(params)
		{
			var vals = [];
			for (var param in params)
			{
				var obj = params[param];
				if (Object.prototype.toString.call(obj) == '[object Array]')
					for (var i= 0, iend=obj.length; i<iend; i++)
						vals.push(param + '=' + (obj[i] == null ? '' : encodeURIComponent(obj[i])));
				else
					vals.push(param + '=' + (obj == null ? '' : encodeURIComponent(obj)));
			}
			return vals.join('&');
		}

		if (method != null)
		{
			var http = typeof(XSLTProcessor) =='undefined' ? new ActiveXObject("Microsoft.XMLHTTP") : new XMLHttpRequest();
			http.open(method, url, false);
			try {http.responseType = "msxml-document"} catch(err) {}
			http.setRequestHeader("Content-Type", "application/x-www-form-urlencoded;charset=utf-8");
			http.setRequestHeader("X-Requested-With", "XMLHttpRequest");
			if (typeof(headers) != 'undefined')
				for (var header in headers)
					http.setRequestHeader(header, headers[header]);

			if (method == 'GET' || typeof(params)=='undefined')
				http.send();
			else
				http.send(buildRequestParam(params));

			return http.responseXML;
		}
		else
			return this.loadXmlDoc(url);
	};

	this.selectSingleNode = function(doc, path)
	{
		if (doc.evaluate)
		{
			var resolver = doc.createNSResolver(doc.ownerDocument == null ? doc.documentElement : doc.ownerDocument.documentElement);
			return doc.evaluate(path, doc, resolver, XPathResult.ANY_TYPE, null).iterateNext();
		}
		else
		{
            try {
                doc.setProperty("SelectionNamespaces", "xmlns:xsl='http://www.w3.org/1999/XSL/Transform'");
            } catch (e) {
            }
			return doc.selectSingleNode(path);
		}
	};

	this.selectNodes = function(doc, path)
	{
		if (doc.evaluate)
		{
			var resolver = doc.createNSResolver(doc.ownerDocument == null ? doc.documentElement : doc.ownerDocument.documentElement);
			var result = doc.evaluate(path, doc, resolver, XPathResult.ANY_TYPE, null), ret = [];
			var obj = result.iterateNext();
			while (obj)
			{
				ret.push(obj);
				obj = result.iterateNext();
			}
			return ret;
		}
		else
		{
            try {
                doc.setProperty("SelectionNamespaces", "xmlns:xsl='http://www.w3.org/1999/XSL/Transform'");
            } catch (e) {
            }
			var result = doc.selectNodes(path), ret = [];
			for (var i= 0, iend=result.length; i<iend; i++)
				ret.push(result.item(i));
			return ret;
		}
	};

	this.transformNode = function(xml, xsl)
	{
		if (xml.evaluate)
		{
			var xslt = new XSLTProcessor();
			xslt.importStylesheet(xsl);
			return xslt.transformToFragment(xml, document);
		}
		else
		{
            try {
                xml.setProperty("AllowDocumentFunction", true);
                xsl.setProperty("AllowDocumentFunction", true);
            } catch (e) {
            }
			return xml.transformNode(xsl);
		}
	};

	this.toString = function(xml)
	{
        if (typeof xml.xml != "undefined")
            return xml.xml;
        else if (typeof window.XMLSerializer != "undefined")
			return (new window.XMLSerializer()).serializeToString(xml);
		else
			return "";
	}
};