log4javascript

log4javascript is a logging framework for JavaScript based on log4j
Dieses Skript sollte nicht direkt installiert werden. Es handelt sich hier um eine Bibliothek für andere Skripte, welche über folgenden Befehl in den Metadaten eines Skriptes eingebunden wird // @require https://update.greatest.deepsurf.us/scripts/8159/37575/log4javascript.js
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// ==UserScript==
// @name           log4javascript
// @namespace      Tim Down
// @description    log4javascript is a logging framework for JavaScript based on log4j
// @copyright      2014 Tim Down
// @version        1.4.11
// @source         http://log4javascript.org
// @license        Apache
// ==/UserScript==
 
/**
 * Copyright 2014 Tim Down.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
 
/**
 * log4javascript
 *
 * log4javascript is a logging framework for JavaScript based on log4j
 * for Java. This file contains all core log4javascript code and is the only
 * file required to use log4javascript, unless you require support for
 * document.domain, in which case you will also need console.html, which must be
 * stored in the same directory as the main log4javascript.js file.
 *
 * Author: Tim Down <tim@log4javascript.org>
 * Version: 1.4.11
 * Edition: log4javascript
 * Build date: 19 February 2015
 * Website: http://log4javascript.org
 */
 
(function(factory, root) {
	if (typeof define == "function" && define.amd) {
		// AMD. Register as an anonymous module.
		define(factory);
	} else if (typeof module != "undefined" && typeof exports == "object") {
		// Node/CommonJS style
		module.exports = factory();
	} else {
		// No AMD or CommonJS support so we place log4javascript in (probably) the global variable
		root.log4javascript = factory();
	}
})(function() {
	// Array-related stuff. Next three methods are solely for IE5, which is missing them
	if (!Array.prototype.push) {
		Array.prototype.push = function() {
			for (var i = 0, len = arguments.length; i < len; i++){
				this[this.length] = arguments[i];
			}
			return this.length;
		};
	}
 
	if (!Array.prototype.shift) {
		Array.prototype.shift = function() {
			if (this.length > 0) {
				var firstItem = this[0];
				for (var i = 0, len = this.length - 1; i < len; i++) {
					this[i] = this[i + 1];
				}
				this.length = this.length - 1;
				return firstItem;
			}
		};
	}
 
	if (!Array.prototype.splice) {
		Array.prototype.splice = function(startIndex, deleteCount) {
			var itemsAfterDeleted = this.slice(startIndex + deleteCount);
			var itemsDeleted = this.slice(startIndex, startIndex + deleteCount);
			this.length = startIndex;
			// Copy the arguments into a proper Array object
			var argumentsArray = [];
			for (var i = 0, len = arguments.length; i < len; i++) {
				argumentsArray[i] = arguments[i];
			}
			var itemsToAppend = (argumentsArray.length > 2) ?
				itemsAfterDeleted = argumentsArray.slice(2).concat(itemsAfterDeleted) : itemsAfterDeleted;
			for (i = 0, len = itemsToAppend.length; i < len; i++) {
				this.push(itemsToAppend[i]);
			}
			return itemsDeleted;
		};
	}
 
	/* ---------------------------------------------------------------------- */
 
	function isUndefined(obj) {
		return typeof obj == "undefined";
	}
 
	/* ---------------------------------------------------------------------- */
	// Custom event support
 
	function EventSupport() {}
 
	EventSupport.prototype = {
		eventTypes: [],
		eventListeners: {},
		setEventTypes: function(eventTypesParam) {
			if (eventTypesParam instanceof Array) {
				this.eventTypes = eventTypesParam;
				this.eventListeners = {};
				for (var i = 0, len = this.eventTypes.length; i < len; i++) {
					this.eventListeners[this.eventTypes[i]] = [];
				}
			} else {
				handleError("log4javascript.EventSupport [" + this + "]: setEventTypes: eventTypes parameter must be an Array");
			}
		},
 
		addEventListener: function(eventType, listener) {
			if (typeof listener == "function") {
				if (!array_contains(this.eventTypes, eventType)) {
					handleError("log4javascript.EventSupport [" + this + "]: addEventListener: no event called '" + eventType + "'");
				}
				this.eventListeners[eventType].push(listener);
			} else {
				handleError("log4javascript.EventSupport [" + this + "]: addEventListener: listener must be a function");
			}
		},
 
		removeEventListener: function(eventType, listener) {
			if (typeof listener == "function") {
				if (!array_contains(this.eventTypes, eventType)) {
					handleError("log4javascript.EventSupport [" + this + "]: removeEventListener: no event called '" + eventType + "'");
				}
				array_remove(this.eventListeners[eventType], listener);
			} else {
				handleError("log4javascript.EventSupport [" + this + "]: removeEventListener: listener must be a function");
			}
		},
 
		dispatchEvent: function(eventType, eventArgs) {
			if (array_contains(this.eventTypes, eventType)) {
				var listeners = this.eventListeners[eventType];
				for (var i = 0, len = listeners.length; i < len; i++) {
					listeners[i](this, eventType, eventArgs);
				}
			} else {
				handleError("log4javascript.EventSupport [" + this + "]: dispatchEvent: no event called '" + eventType + "'");
			}
		}
	};
 
	/* -------------------------------------------------------------------------- */
 
	var applicationStartDate = new Date();
	var uniqueId = "log4javascript_" + applicationStartDate.getTime() + "_" +
		Math.floor(Math.random() * 100000000);
	var emptyFunction = function() {};
	var newLine = "\r\n";
	var pageLoaded = false;
 
	// Create main log4javascript object; this will be assigned public properties
	function Log4JavaScript() {}
	Log4JavaScript.prototype = new EventSupport();
 
	var log4javascript = new Log4JavaScript();
	log4javascript.version = "1.4.11";
	log4javascript.edition = "log4javascript";
 
	/* -------------------------------------------------------------------------- */
	// Utility functions
 
	function toStr(obj) {
		if (obj && obj.toString) {
			return obj.toString();
		} else {
			return String(obj);
		}
	}
 
	function getExceptionMessage(ex) {
		if (ex.message) {
			return ex.message;
		} else if (ex.description) {
			return ex.description;
		} else {
			return toStr(ex);
		}
	}
 
	// Gets the portion of the URL after the last slash
	function getUrlFileName(url) {
		var lastSlashIndex = Math.max(url.lastIndexOf("/"), url.lastIndexOf("\\"));
		return url.substr(lastSlashIndex + 1);
	}
 
	// Returns a nicely formatted representation of an error
	function getExceptionStringRep(ex) {
		if (ex) {
			var exStr = "Exception: " + getExceptionMessage(ex);
			try {
				if (ex.lineNumber) {
					exStr += " on line number " + ex.lineNumber;
				}
				if (ex.fileName) {
					exStr += " in file " + getUrlFileName(ex.fileName);
				}
			} catch (localEx) {
				logLog.warn("Unable to obtain file and line information for error");
			}
			if (showStackTraces && ex.stack) {
				exStr += newLine + "Stack trace:" + newLine + ex.stack;
			}
			return exStr;
		}
		return null;
	}
 
	function bool(obj) {
		return Boolean(obj);
	}
 
	function trim(str) {
		return str.replace(/^\s+/, "").replace(/\s+$/, "");
	}
 
	function splitIntoLines(text) {
		// Ensure all line breaks are \n only
		var text2 = text.replace(/\r\n/g, "\n").replace(/\r/g, "\n");
		return text2.split("\n");
	}
 
	var urlEncode = (typeof window.encodeURIComponent != "undefined") ?
		function(str) {
			return encodeURIComponent(str);
		}:
		function(str) {
			return escape(str).replace(/\+/g, "%2B").replace(/"/g, "%22").replace(/'/g, "%27").replace(/\//g, "%2F").replace(/=/g, "%3D");
		};
 
	function array_remove(arr, val) {
		var index = -1;
		for (var i = 0, len = arr.length; i < len; i++) {
			if (arr[i] === val) {
				index = i;
				break;
			}
		}
		if (index >= 0) {
			arr.splice(index, 1);
			return true;
		} else {
			return false;
		}
	}
 
	function array_contains(arr, val) {
		for(var i = 0, len = arr.length; i < len; i++) {
			if (arr[i] == val) {
				return true;
			}
		}
		return false;
	}
 
	function extractBooleanFromParam(param, defaultValue) {
		if (isUndefined(param)) {
			return defaultValue;
		} else {
			return bool(param);
		}
	}
 
	function extractStringFromParam(param, defaultValue) {
		if (isUndefined(param)) {
			return defaultValue;
		} else {
			return String(param);
		}
	}
 
	function extractIntFromParam(param, defaultValue) {
		if (isUndefined(param)) {
			return defaultValue;
		} else {
			try {
				var value = parseInt(param, 10);
				return isNaN(value) ? defaultValue : value;
			} catch (ex) {
				logLog.warn("Invalid int param " + param, ex);
				return defaultValue;
			}
		}
	}
 
	function extractFunctionFromParam(param, defaultValue) {
		if (typeof param == "function") {
			return param;
		} else {
			return defaultValue;
		}
	}
 
	function isError(err) {
		return (err instanceof Error);
	}
 
	if (!Function.prototype.apply){
		Function.prototype.apply = function(obj, args) {
			var methodName = "__apply__";
			if (typeof obj[methodName] != "undefined") {
				methodName += String(Math.random()).substr(2);
			}
			obj[methodName] = this;
 
			var argsStrings = [];
			for (var i = 0, len = args.length; i < len; i++) {
				argsStrings[i] = "args[" + i + "]";
			}
			var script = "obj." + methodName + "(" + argsStrings.join(",") + ")";
			var returnValue = eval(script);
			delete obj[methodName];
			return returnValue;
		};
	}
 
	if (!Function.prototype.call){
		Function.prototype.call = function(obj) {
			var args = [];
			for (var i = 1, len = arguments.length; i < len; i++) {
				args[i - 1] = arguments[i];
			}
			return this.apply(obj, args);
		};
	}
 
	/* ---------------------------------------------------------------------- */
	// Simple logging for log4javascript itself
 
	var logLog = {
		quietMode: false,
 
		debugMessages: [],
 
		setQuietMode: function(quietMode) {
			this.quietMode = bool(quietMode);
		},
 
		numberOfErrors: 0,
 
		alertAllErrors: false,
 
		setAlertAllErrors: function(alertAllErrors) {
			this.alertAllErrors = alertAllErrors;
		},
 
		debug: function(message) {
			this.debugMessages.push(message);
		},
 
		displayDebug: function() {
			alert(this.debugMessages.join(newLine));
		},
 
		warn: function(message, exception) {
		},
 
		error: function(message, exception) {
			if (++this.numberOfErrors == 1 || this.alertAllErrors) {
				if (!this.quietMode) {
					var alertMessage = "log4javascript error: " + message;
					if (exception) {
						alertMessage += newLine + newLine + "Original error: " + getExceptionStringRep(exception);
					}
					alert(alertMessage);
				}
			}
		}
	};
	log4javascript.logLog = logLog;
 
	log4javascript.setEventTypes(["load", "error"]);
 
	function handleError(message, exception) {
		logLog.error(message, exception);
		log4javascript.dispatchEvent("error", { "message": message, "exception": exception });
	}
 
	log4javascript.handleError = handleError;
 
	/* ---------------------------------------------------------------------- */
 
	var enabled = !((typeof log4javascript_disabled != "undefined") &&
					log4javascript_disabled);
 
	log4javascript.setEnabled = function(enable) {
		enabled = bool(enable);
	};
 
	log4javascript.isEnabled = function() {
		return enabled;
	};
 
	var useTimeStampsInMilliseconds = true;
 
	log4javascript.setTimeStampsInMilliseconds = function(timeStampsInMilliseconds) {
		useTimeStampsInMilliseconds = bool(timeStampsInMilliseconds);
	};
 
	log4javascript.isTimeStampsInMilliseconds = function() {
		return useTimeStampsInMilliseconds;
	};
 
 
	// This evaluates the given expression in the current scope, thus allowing
	// scripts to access private variables. Particularly useful for testing
	log4javascript.evalInScope = function(expr) {
		return eval(expr);
	};
 
	var showStackTraces = false;
 
	log4javascript.setShowStackTraces = function(show) {
		showStackTraces = bool(show);
	};
 
	/* ---------------------------------------------------------------------- */
	// Levels
 
	var Level = function(level, name) {
		this.level = level;
		this.name = name;
	};
 
	Level.prototype = {
		toString: function() {
			return this.name;
		},
		equals: function(level) {
			return this.level == level.level;
		},
		isGreaterOrEqual: function(level) {
			return this.level >= level.level;
		}
	};
 
	Level.ALL = new Level(Number.MIN_VALUE, "ALL");
	Level.TRACE = new Level(10000, "TRACE");
	Level.DEBUG = new Level(20000, "DEBUG");
	Level.INFO = new Level(30000, "INFO");
	Level.WARN = new Level(40000, "WARN");
	Level.ERROR = new Level(50000, "ERROR");
	Level.FATAL = new Level(60000, "FATAL");
	Level.OFF = new Level(Number.MAX_VALUE, "OFF");
 
	log4javascript.Level = Level;
 
	/* ---------------------------------------------------------------------- */
	// Timers
 
	function Timer(name, level) {
		this.name = name;
		this.level = isUndefined(level) ? Level.INFO : level;
		this.start = new Date();
	}
 
	Timer.prototype.getElapsedTime = function() {
		return new Date().getTime() - this.start.getTime();
	};
 
	/* ---------------------------------------------------------------------- */
	// Loggers
 
	var anonymousLoggerName = "[anonymous]";
	var defaultLoggerName = "[default]";
	var nullLoggerName = "[null]";
	var rootLoggerName = "root";
 
	function Logger(name) {
		this.name = name;
		this.parent = null;
		this.children = [];
 
		var appenders = [];
		var loggerLevel = null;
		var isRoot = (this.name === rootLoggerName);
		var isNull = (this.name === nullLoggerName);
 
		var appenderCache = null;
		var appenderCacheInvalidated = false;
 
		this.addChild = function(childLogger) {
			this.children.push(childLogger);
			childLogger.parent = this;
			childLogger.invalidateAppenderCache();
		};
 
		// Additivity
		var additive = true;
		this.getAdditivity = function() {
			return additive;
		};
 
		this.setAdditivity = function(additivity) {
			var valueChanged = (additive != additivity);
			additive = additivity;
			if (valueChanged) {
				this.invalidateAppenderCache();
			}
		};
 
		// Create methods that use the appenders variable in this scope
		this.addAppender = function(appender) {
			if (isNull) {
				handleError("Logger.addAppender: you may not add an appender to the null logger");
			} else {
				if (appender instanceof log4javascript.Appender) {
					if (!array_contains(appenders, appender)) {
						appenders.push(appender);
						appender.setAddedToLogger(this);
						this.invalidateAppenderCache();
					}
				} else {
					handleError("Logger.addAppender: appender supplied ('" +
						toStr(appender) + "') is not a subclass of Appender");
				}
			}
		};
 
		this.removeAppender = function(appender) {
			array_remove(appenders, appender);
			appender.setRemovedFromLogger(this);
			this.invalidateAppenderCache();
		};
 
		this.removeAllAppenders = function() {
			var appenderCount = appenders.length;
			if (appenderCount > 0) {
				for (var i = 0; i < appenderCount; i++) {
					appenders[i].setRemovedFromLogger(this);
				}
				appenders.length = 0;
				this.invalidateAppenderCache();
			}
		};
 
		this.getEffectiveAppenders = function() {
			if (appenderCache === null || appenderCacheInvalidated) {
				// Build appender cache
				var parentEffectiveAppenders = (isRoot || !this.getAdditivity()) ?
					[] : this.parent.getEffectiveAppenders();
				appenderCache = parentEffectiveAppenders.concat(appenders);
				appenderCacheInvalidated = false;
			}
			return appenderCache;
		};
 
		this.invalidateAppenderCache = function() {
			appenderCacheInvalidated = true;
			for (var i = 0, len = this.children.length; i < len; i++) {
				this.children[i].invalidateAppenderCache();
			}
		};
 
		this.log = function(level, params) {
			if (enabled && level.isGreaterOrEqual(this.getEffectiveLevel())) {
				// Check whether last param is an exception
				var exception;
				var finalParamIndex = params.length - 1;
				var lastParam = params[finalParamIndex];
				if (params.length > 1 && isError(lastParam)) {
					exception = lastParam;
					finalParamIndex--;
				}
 
				// Construct genuine array for the params
				var messages = [];
				for (var i = 0; i <= finalParamIndex; i++) {
					messages[i] = params[i];
				}
 
				var loggingEvent = new LoggingEvent(
					this, new Date(), level, messages, exception);
 
				this.callAppenders(loggingEvent);
			}
		};
 
		this.callAppenders = function(loggingEvent) {
			var effectiveAppenders = this.getEffectiveAppenders();
			for (var i = 0, len = effectiveAppenders.length; i < len; i++) {
				effectiveAppenders[i].doAppend(loggingEvent);
			}
		};
 
		this.setLevel = function(level) {
			// Having a level of null on the root logger would be very bad.
			if (isRoot && level === null) {
				handleError("Logger.setLevel: you cannot set the level of the root logger to null");
			} else if (level instanceof Level) {
				loggerLevel = level;
			} else {
				handleError("Logger.setLevel: level supplied to logger " +
					this.name + " is not an instance of log4javascript.Level");
			}
		};
 
		this.getLevel = function() {
			return loggerLevel;
		};
 
		this.getEffectiveLevel = function() {
			for (var logger = this; logger !== null; logger = logger.parent) {
				var level = logger.getLevel();
				if (level !== null) {
					return level;
				}
			}
		};
 
		this.group = function(name, initiallyExpanded) {
			if (enabled) {
				var effectiveAppenders = this.getEffectiveAppenders();
				for (var i = 0, len = effectiveAppenders.length; i < len; i++) {
					effectiveAppenders[i].group(name, initiallyExpanded);
				}
			}
		};
 
		this.groupEnd = function() {
			if (enabled) {
				var effectiveAppenders = this.getEffectiveAppenders();
				for (var i = 0, len = effectiveAppenders.length; i < len; i++) {
					effectiveAppenders[i].groupEnd();
				}
			}
		};
 
		var timers = {};
 
		this.time = function(name, level) {
			if (enabled) {
				if (isUndefined(name)) {
					handleError("Logger.time: a name for the timer must be supplied");
				} else if (level && !(level instanceof Level)) {
					handleError("Logger.time: level supplied to timer " +
						name + " is not an instance of log4javascript.Level");
				} else {
					timers[name] = new Timer(name, level);
				}
			}
		};
 
		this.timeEnd = function(name) {
			if (enabled) {
				if (isUndefined(name)) {
					handleError("Logger.timeEnd: a name for the timer must be supplied");
				} else if (timers[name]) {
					var timer = timers[name];
					var milliseconds = timer.getElapsedTime();
					this.log(timer.level, ["Timer " + toStr(name) + " completed in " + milliseconds + "ms"]);
					delete timers[name];
				} else {
					logLog.warn("Logger.timeEnd: no timer found with name " + name);
				}
			}
		};
 
		this.assert = function(expr) {
			if (enabled && !expr) {
				var args = [];
				for (var i = 1, len = arguments.length; i < len; i++) {
					args.push(arguments[i]);
				}
				args = (args.length > 0) ? args : ["Assertion Failure"];
				args.push(newLine);
				args.push(expr);
				this.log(Level.ERROR, args);
			}
		};
 
		this.toString = function() {
			return "Logger[" + this.name + "]";
		};
	}
 
	Logger.prototype = {
		trace: function() {
			this.log(Level.TRACE, arguments);
		},
 
		debug: function() {
			this.log(Level.DEBUG, arguments);
		},
 
		info: function() {
			this.log(Level.INFO, arguments);
		},
 
		warn: function() {
			this.log(Level.WARN, arguments);
		},
 
		error: function() {
			this.log(Level.ERROR, arguments);
		},
 
		fatal: function() {
			this.log(Level.FATAL, arguments);
		},
 
		isEnabledFor: function(level) {
			return level.isGreaterOrEqual(this.getEffectiveLevel());
		},
 
		isTraceEnabled: function() {
			return this.isEnabledFor(Level.TRACE);
		},
 
		isDebugEnabled: function() {
			return this.isEnabledFor(Level.DEBUG);
		},
 
		isInfoEnabled: function() {
			return this.isEnabledFor(Level.INFO);
		},
 
		isWarnEnabled: function() {
			return this.isEnabledFor(Level.WARN);
		},
 
		isErrorEnabled: function() {
			return this.isEnabledFor(Level.ERROR);
		},
 
		isFatalEnabled: function() {
			return this.isEnabledFor(Level.FATAL);
		}
	};
 
	Logger.prototype.trace.isEntryPoint = true;
	Logger.prototype.debug.isEntryPoint = true;
	Logger.prototype.info.isEntryPoint = true;
	Logger.prototype.warn.isEntryPoint = true;
	Logger.prototype.error.isEntryPoint = true;
	Logger.prototype.fatal.isEntryPoint = true;
 
	/* ---------------------------------------------------------------------- */
	// Logger access methods
 
	// Hashtable of loggers keyed by logger name
	var loggers = {};
	var loggerNames = [];
 
	var ROOT_LOGGER_DEFAULT_LEVEL = Level.DEBUG;
	var rootLogger = new Logger(rootLoggerName);
	rootLogger.setLevel(ROOT_LOGGER_DEFAULT_LEVEL);
 
	log4javascript.getRootLogger = function() {
		return rootLogger;
	};
 
	log4javascript.getLogger = function(loggerName) {
		// Use default logger if loggerName is not specified or invalid
		if (typeof loggerName != "string") {
			loggerName = anonymousLoggerName;
			logLog.warn("log4javascript.getLogger: non-string logger name "	+
				toStr(loggerName) + " supplied, returning anonymous logger");
		}
 
		// Do not allow retrieval of the root logger by name
		if (loggerName == rootLoggerName) {
			handleError("log4javascript.getLogger: root logger may not be obtained by name");
		}
 
		// Create the logger for this name if it doesn't already exist
		if (!loggers[loggerName]) {
			var logger = new Logger(loggerName);
			loggers[loggerName] = logger;
			loggerNames.push(loggerName);
 
			// Set up parent logger, if it doesn't exist
			var lastDotIndex = loggerName.lastIndexOf(".");
			var parentLogger;
			if (lastDotIndex > -1) {
				var parentLoggerName = loggerName.substring(0, lastDotIndex);
				parentLogger = log4javascript.getLogger(parentLoggerName); // Recursively sets up grandparents etc.
			} else {
				parentLogger = rootLogger;
			}
			parentLogger.addChild(logger);
		}
		return loggers[loggerName];
	};
 
	var defaultLogger = null;
	log4javascript.getDefaultLogger = function() {
		if (!defaultLogger) {
			defaultLogger = createDefaultLogger();
		}
		return defaultLogger;
	};
 
	var nullLogger = null;
	log4javascript.getNullLogger = function() {
		if (!nullLogger) {
			nullLogger = new Logger(nullLoggerName);
			nullLogger.setLevel(Level.OFF);
		}
		return nullLogger;
	};
 
	// Destroys all loggers
	log4javascript.resetConfiguration = function() {
		rootLogger.setLevel(ROOT_LOGGER_DEFAULT_LEVEL);
		loggers = {};
	};
 
	/* ---------------------------------------------------------------------- */
	// Logging events
 
	var LoggingEvent = function(logger, timeStamp, level, messages,
			exception) {
		this.logger = logger;
		this.timeStamp = timeStamp;
		this.timeStampInMilliseconds = timeStamp.getTime();
		this.timeStampInSeconds = Math.floor(this.timeStampInMilliseconds / 1000);
		this.milliseconds = this.timeStamp.getMilliseconds();
		this.level = level;
		this.messages = messages;
		this.exception = exception;
	};
 
	LoggingEvent.prototype = {
		getThrowableStrRep: function() {
			return this.exception ?
				getExceptionStringRep(this.exception) : "";
		},
		getCombinedMessages: function() {
			return (this.messages.length == 1) ? this.messages[0] :
				   this.messages.join(newLine);
		},
		toString: function() {
			return "LoggingEvent[" + this.level + "]";
		}
	};
 
	log4javascript.LoggingEvent = LoggingEvent;
 
	/* ---------------------------------------------------------------------- */
	// Layout prototype
 
	var Layout = function() {
	};
 
	Layout.prototype = {
		defaults: {
			loggerKey: "logger",
			timeStampKey: "timestamp",
			millisecondsKey: "milliseconds",
			levelKey: "level",
			messageKey: "message",
			exceptionKey: "exception",
			urlKey: "url"
		},
		loggerKey: "logger",
		timeStampKey: "timestamp",
		millisecondsKey: "milliseconds",
		levelKey: "level",
		messageKey: "message",
		exceptionKey: "exception",
		urlKey: "url",
		batchHeader: "",
		batchFooter: "",
		batchSeparator: "",
		returnsPostData: false,
		overrideTimeStampsSetting: false,
		useTimeStampsInMilliseconds: null,
 
		format: function() {
			handleError("Layout.format: layout supplied has no format() method");
		},
 
		ignoresThrowable: function() {
			handleError("Layout.ignoresThrowable: layout supplied has no ignoresThrowable() method");
		},
 
		getContentType: function() {
			return "text/plain";
		},
 
		allowBatching: function() {
			return true;
		},
 
		setTimeStampsInMilliseconds: function(timeStampsInMilliseconds) {
			this.overrideTimeStampsSetting = true;
			this.useTimeStampsInMilliseconds = bool(timeStampsInMilliseconds);
		},
 
		isTimeStampsInMilliseconds: function() {
			return this.overrideTimeStampsSetting ?
				this.useTimeStampsInMilliseconds : useTimeStampsInMilliseconds;
		},
 
		getTimeStampValue: function(loggingEvent) {
			return this.isTimeStampsInMilliseconds() ?
				loggingEvent.timeStampInMilliseconds : loggingEvent.timeStampInSeconds;
		},
 
		getDataValues: function(loggingEvent, combineMessages) {
			var dataValues = [
				[this.loggerKey, loggingEvent.logger.name],
				[this.timeStampKey, this.getTimeStampValue(loggingEvent)],
				[this.levelKey, loggingEvent.level.name],
				[this.urlKey, window.location.href],
				[this.messageKey, combineMessages ? loggingEvent.getCombinedMessages() : loggingEvent.messages]
			];
			if (!this.isTimeStampsInMilliseconds()) {
				dataValues.push([this.millisecondsKey, loggingEvent.milliseconds]);
			}
			if (loggingEvent.exception) {
				dataValues.push([this.exceptionKey, getExceptionStringRep(loggingEvent.exception)]);
			}
			if (this.hasCustomFields()) {
				for (var i = 0, len = this.customFields.length; i < len; i++) {
					var val = this.customFields[i].value;
 
					// Check if the value is a function. If so, execute it, passing it the
					// current layout and the logging event
					if (typeof val === "function") {
						val = val(this, loggingEvent);
					}
					dataValues.push([this.customFields[i].name, val]);
				}
			}
			return dataValues;
		},
 
		setKeys: function(loggerKey, timeStampKey, levelKey, messageKey,
				exceptionKey, urlKey, millisecondsKey) {
			this.loggerKey = extractStringFromParam(loggerKey, this.defaults.loggerKey);
			this.timeStampKey = extractStringFromParam(timeStampKey, this.defaults.timeStampKey);
			this.levelKey = extractStringFromParam(levelKey, this.defaults.levelKey);
			this.messageKey = extractStringFromParam(messageKey, this.defaults.messageKey);
			this.exceptionKey = extractStringFromParam(exceptionKey, this.defaults.exceptionKey);
			this.urlKey = extractStringFromParam(urlKey, this.defaults.urlKey);
			this.millisecondsKey = extractStringFromParam(millisecondsKey, this.defaults.millisecondsKey);
		},
 
		setCustomField: function(name, value) {
			var fieldUpdated = false;
			for (var i = 0, len = this.customFields.length; i < len; i++) {
				if (this.customFields[i].name === name) {
					this.customFields[i].value = value;
					fieldUpdated = true;
				}
			}
			if (!fieldUpdated) {
				this.customFields.push({"name": name, "value": value});
			}
		},
 
		hasCustomFields: function() {
			return (this.customFields.length > 0);
		},
 
		formatWithException: function(loggingEvent) {
			var formatted = this.format(loggingEvent);
			if (loggingEvent.exception && this.ignoresThrowable()) {
				formatted += loggingEvent.getThrowableStrRep();
			}
			return formatted;
		},
 
		toString: function() {
			handleError("Layout.toString: all layouts must override this method");
		}
	};
 
	log4javascript.Layout = Layout;
 
	/* ---------------------------------------------------------------------- */
	// Appender prototype
 
	var Appender = function() {};
 
	Appender.prototype = new EventSupport();
 
	Appender.prototype.layout = new PatternLayout();
	Appender.prototype.threshold = Level.ALL;
	Appender.prototype.loggers = [];
 
	// Performs threshold checks before delegating actual logging to the
	// subclass's specific append method.
	Appender.prototype.doAppend = function(loggingEvent) {
		if (enabled && loggingEvent.level.level >= this.threshold.level) {
			this.append(loggingEvent);
		}
	};
 
	Appender.prototype.append = function(loggingEvent) {};
 
	Appender.prototype.setLayout = function(layout) {
		if (layout instanceof Layout) {
			this.layout = layout;
		} else {
			handleError("Appender.setLayout: layout supplied to " +
				this.toString() + " is not a subclass of Layout");
		}
	};
 
	Appender.prototype.getLayout = function() {
		return this.layout;
	};
 
	Appender.prototype.setThreshold = function(threshold) {
		if (threshold instanceof Level) {
			this.threshold = threshold;
		} else {
			handleError("Appender.setThreshold: threshold supplied to " +
				this.toString() + " is not a subclass of Level");
		}
	};
 
	Appender.prototype.getThreshold = function() {
		return this.threshold;
	};
 
	Appender.prototype.setAddedToLogger = function(logger) {
		this.loggers.push(logger);
	};
 
	Appender.prototype.setRemovedFromLogger = function(logger) {
		array_remove(this.loggers, logger);
	};
 
	Appender.prototype.group = emptyFunction;
	Appender.prototype.groupEnd = emptyFunction;
 
	Appender.prototype.toString = function() {
		handleError("Appender.toString: all appenders must override this method");
	};
 
	log4javascript.Appender = Appender;
 
	/* ---------------------------------------------------------------------- */
	// SimpleLayout
 
	function SimpleLayout() {
		this.customFields = [];
	}
 
	SimpleLayout.prototype = new Layout();
 
	SimpleLayout.prototype.format = function(loggingEvent) {
		return loggingEvent.level.name + " - " + loggingEvent.getCombinedMessages();
	};
 
	SimpleLayout.prototype.ignoresThrowable = function() {
	    return true;
	};
 
	SimpleLayout.prototype.toString = function() {
	    return "SimpleLayout";
	};
 
	log4javascript.SimpleLayout = SimpleLayout;
	/* ----------------------------------------------------------------------- */
	// NullLayout
 
	function NullLayout() {
		this.customFields = [];
	}
 
	NullLayout.prototype = new Layout();
 
	NullLayout.prototype.format = function(loggingEvent) {
		return loggingEvent.messages;
	};
 
	NullLayout.prototype.ignoresThrowable = function() {
	    return true;
	};
 
	NullLayout.prototype.formatWithException = function(loggingEvent) {
		var messages = loggingEvent.messages, ex = loggingEvent.exception;
		return ex ? messages.concat([ex]) : messages;
	};
 
	NullLayout.prototype.toString = function() {
	    return "NullLayout";
	};
 
	log4javascript.NullLayout = NullLayout;
/* ---------------------------------------------------------------------- */
	// XmlLayout
 
	function XmlLayout(combineMessages) {
		this.combineMessages = extractBooleanFromParam(combineMessages, true);
		this.customFields = [];
	}
 
	XmlLayout.prototype = new Layout();
 
	XmlLayout.prototype.isCombinedMessages = function() {
		return this.combineMessages;
	};
 
	XmlLayout.prototype.getContentType = function() {
		return "text/xml";
	};
 
	XmlLayout.prototype.escapeCdata = function(str) {
		return str.replace(/\]\]>/, "]]>]]&gt;<![CDATA[");
	};
 
	XmlLayout.prototype.format = function(loggingEvent) {
		var layout = this;
		var i, len;
		function formatMessage(message) {
			message = (typeof message === "string") ? message : toStr(message);
			return "<log4javascript:message><![CDATA[" +
				layout.escapeCdata(message) + "]]></log4javascript:message>";
		}
 
		var str = "<log4javascript:event logger=\"" + loggingEvent.logger.name +
			"\" timestamp=\"" + this.getTimeStampValue(loggingEvent) + "\"";
		if (!this.isTimeStampsInMilliseconds()) {
			str += " milliseconds=\"" + loggingEvent.milliseconds + "\"";
		}
		str += " level=\"" + loggingEvent.level.name + "\">" + newLine;
		if (this.combineMessages) {
			str += formatMessage(loggingEvent.getCombinedMessages());
		} else {
			str += "<log4javascript:messages>" + newLine;
			for (i = 0, len = loggingEvent.messages.length; i < len; i++) {
				str += formatMessage(loggingEvent.messages[i]) + newLine;
			}
			str += "</log4javascript:messages>" + newLine;
		}
		if (this.hasCustomFields()) {
			for (i = 0, len = this.customFields.length; i < len; i++) {
				str += "<log4javascript:customfield name=\"" +
					this.customFields[i].name + "\"><![CDATA[" +
					this.customFields[i].value.toString() +
					"]]></log4javascript:customfield>" + newLine;
			}
		}
		if (loggingEvent.exception) {
			str += "<log4javascript:exception><![CDATA[" +
				getExceptionStringRep(loggingEvent.exception) +
				"]]></log4javascript:exception>" + newLine;
		}
		str += "</log4javascript:event>" + newLine + newLine;
		return str;
	};
 
	XmlLayout.prototype.ignoresThrowable = function() {
	    return false;
	};
 
	XmlLayout.prototype.toString = function() {
	    return "XmlLayout";
	};
 
	log4javascript.XmlLayout = XmlLayout;
	/* ---------------------------------------------------------------------- */
	// JsonLayout related
 
	function escapeNewLines(str) {
		return str.replace(/\r\n|\r|\n/g, "\\r\\n");
	}
 
	function JsonLayout(readable, combineMessages) {
		this.readable = extractBooleanFromParam(readable, false);
		this.combineMessages = extractBooleanFromParam(combineMessages, true);
		this.batchHeader = this.readable ? "[" + newLine : "[";
		this.batchFooter = this.readable ? "]" + newLine : "]";
		this.batchSeparator = this.readable ? "," + newLine : ",";
		this.setKeys();
		this.colon = this.readable ? ": " : ":";
		this.tab = this.readable ? "\t" : "";
		this.lineBreak = this.readable ? newLine : "";
		this.customFields = [];
	}
 
	/* ---------------------------------------------------------------------- */
	// JsonLayout
 
	JsonLayout.prototype = new Layout();
 
	JsonLayout.prototype.isReadable = function() {
		return this.readable;
	};
 
	JsonLayout.prototype.isCombinedMessages = function() {
		return this.combineMessages;
	};
 
    JsonLayout.prototype.format = function(loggingEvent) {
        var layout = this;
        var dataValues = this.getDataValues(loggingEvent, this.combineMessages);
        var str = "{" + this.lineBreak;
        var i, len;
 
        function formatValue(val, prefix, expand) {
            // Check the type of the data value to decide whether quotation marks
            // or expansion are required
            var formattedValue;
            var valType = typeof val;
            if (val instanceof Date) {
                formattedValue = String(val.getTime());
            } else if (expand && (val instanceof Array)) {
                formattedValue = "[" + layout.lineBreak;
                for (var i = 0, len = val.length; i < len; i++) {
                    var childPrefix = prefix + layout.tab;
                    formattedValue += childPrefix + formatValue(val[i], childPrefix, false);
                    if (i < val.length - 1) {
                        formattedValue += ",";
                    }
                    formattedValue += layout.lineBreak;
                }
                formattedValue += prefix + "]";
            } else if (valType !== "number" && valType !== "boolean") {
                formattedValue = "\"" + escapeNewLines(toStr(val).replace(/\"/g, "\\\"")) + "\"";
            } else {
                formattedValue = val;
            }
            return formattedValue;
        }
 
        for (i = 0, len = dataValues.length - 1; i <= len; i++) {
            str += this.tab + "\"" + dataValues[i][0] + "\"" + this.colon + formatValue(dataValues[i][1], this.tab, true);
            if (i < len) {
                str += ",";
            }
            str += this.lineBreak;
        }
 
        str += "}" + this.lineBreak;
        return str;
    };
 
	JsonLayout.prototype.ignoresThrowable = function() {
	    return false;
	};
 
	JsonLayout.prototype.toString = function() {
	    return "JsonLayout";
	};
 
	JsonLayout.prototype.getContentType = function() {
		return "application/json";
	};
 
	log4javascript.JsonLayout = JsonLayout;
	/* ---------------------------------------------------------------------- */
	// HttpPostDataLayout
 
	function HttpPostDataLayout() {
		this.setKeys();
		this.customFields = [];
		this.returnsPostData = true;
	}
 
	HttpPostDataLayout.prototype = new Layout();
 
	// Disable batching
	HttpPostDataLayout.prototype.allowBatching = function() {
		return false;
	};
 
	HttpPostDataLayout.prototype.format = function(loggingEvent) {
		var dataValues = this.getDataValues(loggingEvent);
		var queryBits = [];
		for (var i = 0, len = dataValues.length; i < len; i++) {
			var val = (dataValues[i][1] instanceof Date) ?
				String(dataValues[i][1].getTime()) : dataValues[i][1];
			queryBits.push(urlEncode(dataValues[i][0]) + "=" + urlEncode(val));
		}
		return queryBits.join("&");
	};
 
	HttpPostDataLayout.prototype.ignoresThrowable = function(loggingEvent) {
	    return false;
	};
 
	HttpPostDataLayout.prototype.toString = function() {
	    return "HttpPostDataLayout";
	};
 
	log4javascript.HttpPostDataLayout = HttpPostDataLayout;
	/* ---------------------------------------------------------------------- */
	// formatObjectExpansion
 
	function formatObjectExpansion(obj, depth, indentation) {
		var objectsExpanded = [];
 
		function doFormat(obj, depth, indentation) {
			var i, len, childDepth, childIndentation, childLines, expansion,
				childExpansion;
 
			if (!indentation) {
				indentation = "";
			}
 
			function formatString(text) {
				var lines = splitIntoLines(text);
				for (var j = 1, jLen = lines.length; j < jLen; j++) {
					lines[j] = indentation + lines[j];
				}
				return lines.join(newLine);
			}
 
			if (obj === null) {
				return "null";
			} else if (typeof obj == "undefined") {
				return "undefined";
			} else if (typeof obj == "string") {
				return formatString(obj);
			} else if (typeof obj == "object" && array_contains(objectsExpanded, obj)) {
				try {
					expansion = toStr(obj);
				} catch (ex) {
					expansion = "Error formatting property. Details: " + getExceptionStringRep(ex);
				}
				return expansion + " [already expanded]";
			} else if ((obj instanceof Array) && depth > 0) {
				objectsExpanded.push(obj);
				expansion = "[" + newLine;
				childDepth = depth - 1;
				childIndentation = indentation + "  ";
				childLines = [];
				for (i = 0, len = obj.length; i < len; i++) {
					try {
						childExpansion = doFormat(obj[i], childDepth, childIndentation);
						childLines.push(childIndentation + childExpansion);
					} catch (ex) {
						childLines.push(childIndentation + "Error formatting array member. Details: " +
							getExceptionStringRep(ex) + "");
					}
				}
				expansion += childLines.join("," + newLine) + newLine + indentation + "]";
				return expansion;
            } else if (Object.prototype.toString.call(obj) == "[object Date]") {
                return obj.toString();
			} else if (typeof obj == "object" && depth > 0) {
				objectsExpanded.push(obj);
				expansion = "{" + newLine;
				childDepth = depth - 1;
				childIndentation = indentation + "  ";
				childLines = [];
				for (i in obj) {
					try {
						childExpansion = doFormat(obj[i], childDepth, childIndentation);
						childLines.push(childIndentation + i + ": " + childExpansion);
					} catch (ex) {
						childLines.push(childIndentation + i + ": Error formatting property. Details: " +
							getExceptionStringRep(ex));
					}
				}
				expansion += childLines.join("," + newLine) + newLine + indentation + "}";
				return expansion;
			} else {
				return formatString(toStr(obj));
			}
		}
		return doFormat(obj, depth, indentation);
	}
	/* ---------------------------------------------------------------------- */
	// Date-related stuff
 
	var SimpleDateFormat;
 
	(function() {
		var regex = /('[^']*')|(G+|y+|M+|w+|W+|D+|d+|F+|E+|a+|H+|k+|K+|h+|m+|s+|S+|Z+)|([a-zA-Z]+)|([^a-zA-Z']+)/;
		var monthNames = ["January", "February", "March", "April", "May", "June",
			"July", "August", "September", "October", "November", "December"];
		var dayNames = ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"];
		var TEXT2 = 0, TEXT3 = 1, NUMBER = 2, YEAR = 3, MONTH = 4, TIMEZONE = 5;
		var types = {
			G : TEXT2,
			y : YEAR,
			M : MONTH,
			w : NUMBER,
			W : NUMBER,
			D : NUMBER,
			d : NUMBER,
			F : NUMBER,
			E : TEXT3,
			a : TEXT2,
			H : NUMBER,
			k : NUMBER,
			K : NUMBER,
			h : NUMBER,
			m : NUMBER,
			s : NUMBER,
			S : NUMBER,
			Z : TIMEZONE
		};
		var ONE_DAY = 24 * 60 * 60 * 1000;
		var ONE_WEEK = 7 * ONE_DAY;
		var DEFAULT_MINIMAL_DAYS_IN_FIRST_WEEK = 1;
 
		var newDateAtMidnight = function(year, month, day) {
			var d = new Date(year, month, day, 0, 0, 0);
			d.setMilliseconds(0);
			return d;
		};
 
		Date.prototype.getDifference = function(date) {
			return this.getTime() - date.getTime();
		};
 
		Date.prototype.isBefore = function(d) {
			return this.getTime() < d.getTime();
		};
 
		Date.prototype.getUTCTime = function() {
			return Date.UTC(this.getFullYear(), this.getMonth(), this.getDate(), this.getHours(), this.getMinutes(),
					this.getSeconds(), this.getMilliseconds());
		};
 
		Date.prototype.getTimeSince = function(d) {
			return this.getUTCTime() - d.getUTCTime();
		};
 
		Date.prototype.getPreviousSunday = function() {
			// Using midday avoids any possibility of DST messing things up
			var midday = new Date(this.getFullYear(), this.getMonth(), this.getDate(), 12, 0, 0);
			var previousSunday = new Date(midday.getTime() - this.getDay() * ONE_DAY);
			return newDateAtMidnight(previousSunday.getFullYear(), previousSunday.getMonth(),
					previousSunday.getDate());
		};
 
		Date.prototype.getWeekInYear = function(minimalDaysInFirstWeek) {
			if (isUndefined(this.minimalDaysInFirstWeek)) {
				minimalDaysInFirstWeek = DEFAULT_MINIMAL_DAYS_IN_FIRST_WEEK;
			}
			var previousSunday = this.getPreviousSunday();
			var startOfYear = newDateAtMidnight(this.getFullYear(), 0, 1);
			var numberOfSundays = previousSunday.isBefore(startOfYear) ?
				0 : 1 + Math.floor(previousSunday.getTimeSince(startOfYear) / ONE_WEEK);
			var numberOfDaysInFirstWeek =  7 - startOfYear.getDay();
			var weekInYear = numberOfSundays;
			if (numberOfDaysInFirstWeek < minimalDaysInFirstWeek) {
				weekInYear--;
			}
			return weekInYear;
		};
 
		Date.prototype.getWeekInMonth = function(minimalDaysInFirstWeek) {
			if (isUndefined(this.minimalDaysInFirstWeek)) {
				minimalDaysInFirstWeek = DEFAULT_MINIMAL_DAYS_IN_FIRST_WEEK;
			}
			var previousSunday = this.getPreviousSunday();
			var startOfMonth = newDateAtMidnight(this.getFullYear(), this.getMonth(), 1);
			var numberOfSundays = previousSunday.isBefore(startOfMonth) ?
				0 : 1 + Math.floor(previousSunday.getTimeSince(startOfMonth) / ONE_WEEK);
			var numberOfDaysInFirstWeek =  7 - startOfMonth.getDay();
			var weekInMonth = numberOfSundays;
			if (numberOfDaysInFirstWeek >= minimalDaysInFirstWeek) {
				weekInMonth++;
			}
			return weekInMonth;
		};
 
		Date.prototype.getDayInYear = function() {
			var startOfYear = newDateAtMidnight(this.getFullYear(), 0, 1);
			return 1 + Math.floor(this.getTimeSince(startOfYear) / ONE_DAY);
		};
 
		/* ------------------------------------------------------------------ */
 
		SimpleDateFormat = function(formatString) {
			this.formatString = formatString;
		};
 
		/**
		 * Sets the minimum number of days in a week in order for that week to
		 * be considered as belonging to a particular month or year
		 */
		SimpleDateFormat.prototype.setMinimalDaysInFirstWeek = function(days) {
			this.minimalDaysInFirstWeek = days;
		};
 
		SimpleDateFormat.prototype.getMinimalDaysInFirstWeek = function() {
			return isUndefined(this.minimalDaysInFirstWeek)	?
				DEFAULT_MINIMAL_DAYS_IN_FIRST_WEEK : this.minimalDaysInFirstWeek;
		};
 
		var padWithZeroes = function(str, len) {
			while (str.length < len) {
				str = "0" + str;
			}
			return str;
		};
 
		var formatText = function(data, numberOfLetters, minLength) {
			return (numberOfLetters >= 4) ? data : data.substr(0, Math.max(minLength, numberOfLetters));
		};
 
		var formatNumber = function(data, numberOfLetters) {
			var dataString = "" + data;
			// Pad with 0s as necessary
			return padWithZeroes(dataString, numberOfLetters);
		};
 
		SimpleDateFormat.prototype.format = function(date) {
			var formattedString = "";
			var result;
			var searchString = this.formatString;
			while ((result = regex.exec(searchString))) {
				var quotedString = result[1];
				var patternLetters = result[2];
				var otherLetters = result[3];
				var otherCharacters = result[4];
 
				// If the pattern matched is quoted string, output the text between the quotes
				if (quotedString) {
					if (quotedString == "''") {
						formattedString += "'";
					} else {
						formattedString += quotedString.substring(1, quotedString.length - 1);
					}
				} else if (otherLetters) {
					// Swallow non-pattern letters by doing nothing here
				} else if (otherCharacters) {
					// Simply output other characters
					formattedString += otherCharacters;
				} else if (patternLetters) {
					// Replace pattern letters
					var patternLetter = patternLetters.charAt(0);
					var numberOfLetters = patternLetters.length;
					var rawData = "";
					switch(patternLetter) {
						case "G":
							rawData = "AD";
							break;
						case "y":
							rawData = date.getFullYear();
							break;
						case "M":
							rawData = date.getMonth();
							break;
						case "w":
							rawData = date.getWeekInYear(this.getMinimalDaysInFirstWeek());
							break;
						case "W":
							rawData = date.getWeekInMonth(this.getMinimalDaysInFirstWeek());
							break;
						case "D":
							rawData = date.getDayInYear();
							break;
						case "d":
							rawData = date.getDate();
							break;
						case "F":
							rawData = 1 + Math.floor((date.getDate() - 1) / 7);
							break;
						case "E":
							rawData = dayNames[date.getDay()];
							break;
						case "a":
							rawData = (date.getHours() >= 12) ? "PM" : "AM";
							break;
						case "H":
							rawData = date.getHours();
							break;
						case "k":
							rawData = date.getHours() || 24;
							break;
						case "K":
							rawData = date.getHours() % 12;
							break;
						case "h":
							rawData = (date.getHours() % 12) || 12;
							break;
						case "m":
							rawData = date.getMinutes();
							break;
						case "s":
							rawData = date.getSeconds();
							break;
						case "S":
							rawData = date.getMilliseconds();
							break;
						case "Z":
							rawData = date.getTimezoneOffset(); // This returns the number of minutes since GMT was this time.
							break;
					}
					// Format the raw data depending on the type
					switch(types[patternLetter]) {
						case TEXT2:
							formattedString += formatText(rawData, numberOfLetters, 2);
							break;
						case TEXT3:
							formattedString += formatText(rawData, numberOfLetters, 3);
							break;
						case NUMBER:
							formattedString += formatNumber(rawData, numberOfLetters);
							break;
						case YEAR:
							if (numberOfLetters <= 3) {
								// Output a 2-digit year
								var dataString = "" + rawData;
								formattedString += dataString.substr(2, 2);
							} else {
								formattedString += formatNumber(rawData, numberOfLetters);
							}
							break;
						case MONTH:
							if (numberOfLetters >= 3) {
								formattedString += formatText(monthNames[rawData], numberOfLetters, numberOfLetters);
							} else {
								// NB. Months returned by getMonth are zero-based
								formattedString += formatNumber(rawData + 1, numberOfLetters);
							}
							break;
						case TIMEZONE:
							var isPositive = (rawData > 0);
							// The following line looks like a mistake but isn't
							// because of the way getTimezoneOffset measures.
							var prefix = isPositive ? "-" : "+";
							var absData = Math.abs(rawData);
 
							// Hours
							var hours = "" + Math.floor(absData / 60);
							hours = padWithZeroes(hours, 2);
							// Minutes
							var minutes = "" + (absData % 60);
							minutes = padWithZeroes(minutes, 2);
 
							formattedString += prefix + hours + minutes;
							break;
					}
				}
				searchString = searchString.substr(result.index + result[0].length);
			}
			return formattedString;
		};
	})();
 
	log4javascript.SimpleDateFormat = SimpleDateFormat;
 
	/* ---------------------------------------------------------------------- */
	// PatternLayout
 
	function PatternLayout(pattern) {
		if (pattern) {
			this.pattern = pattern;
		} else {
			this.pattern = PatternLayout.DEFAULT_CONVERSION_PATTERN;
		}
		this.customFields = [];
	}
 
	PatternLayout.TTCC_CONVERSION_PATTERN = "%r %p %c - %m%n";
	PatternLayout.DEFAULT_CONVERSION_PATTERN = "%m%n";
	PatternLayout.ISO8601_DATEFORMAT = "yyyy-MM-dd HH:mm:ss,SSS";
	PatternLayout.DATETIME_DATEFORMAT = "dd MMM yyyy HH:mm:ss,SSS";
	PatternLayout.ABSOLUTETIME_DATEFORMAT = "HH:mm:ss,SSS";
 
	PatternLayout.prototype = new Layout();
 
	PatternLayout.prototype.format = function(loggingEvent) {
		var regex = /%(-?[0-9]+)?(\.?[0-9]+)?([acdfmMnpr%])(\{([^\}]+)\})?|([^%]+)/;
		var formattedString = "";
		var result;
		var searchString = this.pattern;
 
		// Cannot use regex global flag since it doesn't work with exec in IE5
		while ((result = regex.exec(searchString))) {
			var matchedString = result[0];
			var padding = result[1];
			var truncation = result[2];
			var conversionCharacter = result[3];
			var specifier = result[5];
			var text = result[6];
 
			// Check if the pattern matched was just normal text
			if (text) {
				formattedString += "" + text;
			} else {
				// Create a raw replacement string based on the conversion
				// character and specifier
				var replacement = "";
				switch(conversionCharacter) {
					case "a": // Array of messages
					case "m": // Message
						var depth = 0;
						if (specifier) {
							depth = parseInt(specifier, 10);
							if (isNaN(depth)) {
								handleError("PatternLayout.format: invalid specifier '" +
									specifier + "' for conversion character '" + conversionCharacter +
									"' - should be a number");
								depth = 0;
							}
						}
						var messages = (conversionCharacter === "a") ? loggingEvent.messages[0] : loggingEvent.messages;
						for (var i = 0, len = messages.length; i < len; i++) {
							if (i > 0 && (replacement.charAt(replacement.length - 1) !== " ")) {
								replacement += " ";
							}
							if (depth === 0) {
								replacement += messages[i];
							} else {
								replacement += formatObjectExpansion(messages[i], depth);
							}
						}
						break;
					case "c": // Logger name
						var loggerName = loggingEvent.logger.name;
						if (specifier) {
							var precision = parseInt(specifier, 10);
							var loggerNameBits = loggingEvent.logger.name.split(".");
							if (precision >= loggerNameBits.length) {
								replacement = loggerName;
							} else {
								replacement = loggerNameBits.slice(loggerNameBits.length - precision).join(".");
							}
						} else {
							replacement = loggerName;
						}
						break;
					case "d": // Date
						var dateFormat = PatternLayout.ISO8601_DATEFORMAT;
						if (specifier) {
							dateFormat = specifier;
							// Pick up special cases
							if (dateFormat == "ISO8601") {
								dateFormat = PatternLayout.ISO8601_DATEFORMAT;
							} else if (dateFormat == "ABSOLUTE") {
								dateFormat = PatternLayout.ABSOLUTETIME_DATEFORMAT;
							} else if (dateFormat == "DATE") {
								dateFormat = PatternLayout.DATETIME_DATEFORMAT;
							}
						}
						// Format the date
						replacement = (new SimpleDateFormat(dateFormat)).format(loggingEvent.timeStamp);
						break;
					case "f": // Custom field
						if (this.hasCustomFields()) {
							var fieldIndex = 0;
							if (specifier) {
								fieldIndex = parseInt(specifier, 10);
								if (isNaN(fieldIndex)) {
									handleError("PatternLayout.format: invalid specifier '" +
										specifier + "' for conversion character 'f' - should be a number");
								} else if (fieldIndex === 0) {
									handleError("PatternLayout.format: invalid specifier '" +
										specifier + "' for conversion character 'f' - must be greater than zero");
								} else if (fieldIndex > this.customFields.length) {
									handleError("PatternLayout.format: invalid specifier '" +
										specifier + "' for conversion character 'f' - there aren't that many custom fields");
								} else {
									fieldIndex = fieldIndex - 1;
								}
							}
                            var val = this.customFields[fieldIndex].value;
                            if (typeof val == "function") {
                                val = val(this, loggingEvent);
                            }
                            replacement = val;
						}
						break;
					case "n": // New line
						replacement = newLine;
						break;
					case "p": // Level
						replacement = loggingEvent.level.name;
						break;
					case "r": // Milliseconds since log4javascript startup
						replacement = "" + loggingEvent.timeStamp.getDifference(applicationStartDate);
						break;
					case "%": // Literal % sign
						replacement = "%";
						break;
					default:
						replacement = matchedString;
						break;
				}
				// Format the replacement according to any padding or
				// truncation specified
				var l;
 
				// First, truncation
				if (truncation) {
					l = parseInt(truncation.substr(1), 10);
					var strLen = replacement.length;
					if (l < strLen) {
						replacement = replacement.substring(strLen - l, strLen);
					}
				}
				// Next, padding
				if (padding) {
					if (padding.charAt(0) == "-") {
						l = parseInt(padding.substr(1), 10);
						// Right pad with spaces
						while (replacement.length < l) {
							replacement += " ";
						}
					} else {
						l = parseInt(padding, 10);
						// Left pad with spaces
						while (replacement.length < l) {
							replacement = " " + replacement;
						}
					}
				}
				formattedString += replacement;
			}
			searchString = searchString.substr(result.index + result[0].length);
		}
		return formattedString;
	};
 
	PatternLayout.prototype.ignoresThrowable = function() {
	    return true;
	};
 
	PatternLayout.prototype.toString = function() {
	    return "PatternLayout";
	};
 
	log4javascript.PatternLayout = PatternLayout;
	/* ---------------------------------------------------------------------- */
	// AlertAppender
 
	function AlertAppender() {}
 
	AlertAppender.prototype = new Appender();
 
	AlertAppender.prototype.layout = new SimpleLayout();
 
	AlertAppender.prototype.append = function(loggingEvent) {
		alert( this.getLayout().formatWithException(loggingEvent) );
	};
 
	AlertAppender.prototype.toString = function() {
		return "AlertAppender";
	};
 
	log4javascript.AlertAppender = AlertAppender;
	/* ---------------------------------------------------------------------- */
	// BrowserConsoleAppender (only works in Opera and Safari and Firefox with
	// Firebug extension)
 
	function BrowserConsoleAppender() {}
 
	BrowserConsoleAppender.prototype = new log4javascript.Appender();
	BrowserConsoleAppender.prototype.layout = new NullLayout();
	BrowserConsoleAppender.prototype.threshold = Level.DEBUG;
 
	BrowserConsoleAppender.prototype.append = function(loggingEvent) {
		var appender = this;
 
		var getFormattedMessage = function() {
			var formattedMessage = appender.getLayout().formatWithException(loggingEvent);
			return (typeof formattedMessage == "string") ? [formattedMessage] : formattedMessage;
		};
 
		var console;
 
		if ( (console = window.console) && console.log) { // Safari and Firebug
			var formattedMessage = getFormattedMessage();
 
			// Log to Firebug or the browser console using specific logging
			// methods or revert to console.log otherwise
			var consoleMethodName;
 
			if (console.debug && Level.DEBUG.isGreaterOrEqual(loggingEvent.level)) {
				consoleMethodName = "debug";
			} else if (console.info && Level.INFO.equals(loggingEvent.level)) {
				consoleMethodName = "info";
			} else if (console.warn && Level.WARN.equals(loggingEvent.level)) {
				consoleMethodName = "warn";
			} else if (console.error && loggingEvent.level.isGreaterOrEqual(Level.ERROR)) {
				consoleMethodName = "error";
			} else {
				consoleMethodName = "log";
			}
 
			if (console[consoleMethodName].apply) {
				console[consoleMethodName].apply(console, formattedMessage);
			} else {
				console[consoleMethodName](formattedMessage);
			}
		} else if ((typeof opera != "undefined") && opera.postError) { // Opera
			opera.postError(getFormattedMessage());
		}
	};
 
	BrowserConsoleAppender.prototype.group = function(name) {
		if (window.console && window.console.group) {
			window.console.group(name);
		}
	};
 
	BrowserConsoleAppender.prototype.groupEnd = function() {
		if (window.console && window.console.groupEnd) {
			window.console.groupEnd();
		}
	};
 
	BrowserConsoleAppender.prototype.toString = function() {
		return "BrowserConsoleAppender";
	};
 
	log4javascript.BrowserConsoleAppender = BrowserConsoleAppender;
	/* ---------------------------------------------------------------------- */
	// AjaxAppender related
 
	var xhrFactory = function() { return new XMLHttpRequest(); };
	var xmlHttpFactories = [
		xhrFactory,
		function() { return new ActiveXObject("Msxml2.XMLHTTP"); },
		function() { return new ActiveXObject("Microsoft.XMLHTTP"); }
	];
 
	var withCredentialsSupported = false;
	var getXmlHttp = function(errorHandler) {
		// This is only run the first time; the value of getXmlHttp gets
		// replaced with the factory that succeeds on the first run
		var xmlHttp = null, factory;
		for (var i = 0, len = xmlHttpFactories.length; i < len; i++) {
			factory = xmlHttpFactories[i];
			try {
				xmlHttp = factory();
				withCredentialsSupported = (factory == xhrFactory && ("withCredentials" in xmlHttp));
				getXmlHttp = factory;
				return xmlHttp;
			} catch (e) {
			}
		}
		// If we're here, all factories have failed, so throw an error
		if (errorHandler) {
			errorHandler();
		} else {
			handleError("getXmlHttp: unable to obtain XMLHttpRequest object");
		}
	};
 
	function isHttpRequestSuccessful(xmlHttp) {
		return isUndefined(xmlHttp.status) || xmlHttp.status === 0 ||
			(xmlHttp.status >= 200 && xmlHttp.status < 300) ||
			xmlHttp.status == 1223 /* Fix for IE */;
	}
 
	/* ---------------------------------------------------------------------- */
	// AjaxAppender
 
	function AjaxAppender(url, withCredentials) {
		var appender = this;
		var isSupported = true;
		if (!url) {
			handleError("AjaxAppender: URL must be specified in constructor");
			isSupported = false;
		}
 
		var timed = this.defaults.timed;
		var waitForResponse = this.defaults.waitForResponse;
		var batchSize = this.defaults.batchSize;
		var timerInterval = this.defaults.timerInterval;
		var requestSuccessCallback = this.defaults.requestSuccessCallback;
		var failCallback = this.defaults.failCallback;
		var postVarName = this.defaults.postVarName;
		var sendAllOnUnload = this.defaults.sendAllOnUnload;
		var contentType = this.defaults.contentType;
		var sessionId = null;
 
		var queuedLoggingEvents = [];
		var queuedRequests = [];
		var headers = [];
		var sending = false;
		var initialized = false;
 
		// Configuration methods. The function scope is used to prevent
		// direct alteration to the appender configuration properties.
		function checkCanConfigure(configOptionName) {
			if (initialized) {
				handleError("AjaxAppender: configuration option '" +
					configOptionName +
					"' may not be set after the appender has been initialized");
				return false;
			}
			return true;
		}
 
		this.getSessionId = function() { return sessionId; };
		this.setSessionId = function(sessionIdParam) {
			sessionId = extractStringFromParam(sessionIdParam, null);
			this.layout.setCustomField("sessionid", sessionId);
		};
 
		this.setLayout = function(layoutParam) {
			if (checkCanConfigure("layout")) {
				this.layout = layoutParam;
				// Set the session id as a custom field on the layout, if not already present
				if (sessionId !== null) {
					this.setSessionId(sessionId);
				}
			}
		};
 
		this.isTimed = function() { return timed; };
		this.setTimed = function(timedParam) {
			if (checkCanConfigure("timed")) {
				timed = bool(timedParam);
			}
		};
 
		this.getTimerInterval = function() { return timerInterval; };
		this.setTimerInterval = function(timerIntervalParam) {
			if (checkCanConfigure("timerInterval")) {
				timerInterval = extractIntFromParam(timerIntervalParam, timerInterval);
			}
		};
 
		this.isWaitForResponse = function() { return waitForResponse; };
		this.setWaitForResponse = function(waitForResponseParam) {
			if (checkCanConfigure("waitForResponse")) {
				waitForResponse = bool(waitForResponseParam);
			}
		};
 
		this.getBatchSize = function() { return batchSize; };
		this.setBatchSize = function(batchSizeParam) {
			if (checkCanConfigure("batchSize")) {
				batchSize = extractIntFromParam(batchSizeParam, batchSize);
			}
		};
 
		this.isSendAllOnUnload = function() { return sendAllOnUnload; };
		this.setSendAllOnUnload = function(sendAllOnUnloadParam) {
			if (checkCanConfigure("sendAllOnUnload")) {
				sendAllOnUnload = extractBooleanFromParam(sendAllOnUnloadParam, sendAllOnUnload);
			}
		};
 
		this.setRequestSuccessCallback = function(requestSuccessCallbackParam) {
			requestSuccessCallback = extractFunctionFromParam(requestSuccessCallbackParam, requestSuccessCallback);
		};
 
		this.setFailCallback = function(failCallbackParam) {
			failCallback = extractFunctionFromParam(failCallbackParam, failCallback);
		};
 
		this.getPostVarName = function() { return postVarName; };
		this.setPostVarName = function(postVarNameParam) {
			if (checkCanConfigure("postVarName")) {
				postVarName = extractStringFromParam(postVarNameParam, postVarName);
			}
		};
 
		this.getHeaders = function() { return headers; };
		this.addHeader = function(name, value) {
			if (name.toLowerCase() == "content-type") {
				contentType = value;
			} else {
				headers.push( { name: name, value: value } );
			}
		};
 
		// Internal functions
		function sendAll() {
			if (isSupported && enabled) {
				sending = true;
				var currentRequestBatch;
				if (waitForResponse) {
					// Send the first request then use this function as the callback once
					// the response comes back
					if (queuedRequests.length > 0) {
						currentRequestBatch = queuedRequests.shift();
						sendRequest(preparePostData(currentRequestBatch), sendAll);
					} else {
						sending = false;
						if (timed) {
							scheduleSending();
						}
					}
				} else {
					// Rattle off all the requests without waiting to see the response
					while ((currentRequestBatch = queuedRequests.shift())) {
						sendRequest(preparePostData(currentRequestBatch));
					}
					sending = false;
					if (timed) {
						scheduleSending();
					}
				}
			}
		}
 
		this.sendAll = sendAll;
 
		// Called when the window unloads. At this point we're past caring about
		// waiting for responses or timers or incomplete batches - everything
		// must go, now
		function sendAllRemaining() {
			var sendingAnything = false;
			if (isSupported && enabled) {
				// Create requests for everything left over, batched as normal
				var actualBatchSize = appender.getLayout().allowBatching() ? batchSize : 1;
				var currentLoggingEvent;
				var batchedLoggingEvents = [];
				while ((currentLoggingEvent = queuedLoggingEvents.shift())) {
					batchedLoggingEvents.push(currentLoggingEvent);
					if (queuedLoggingEvents.length >= actualBatchSize) {
						// Queue this batch of log entries
						queuedRequests.push(batchedLoggingEvents);
						batchedLoggingEvents = [];
					}
				}
				// If there's a partially completed batch, add it
				if (batchedLoggingEvents.length > 0) {
					queuedRequests.push(batchedLoggingEvents);
				}
				sendingAnything = (queuedRequests.length > 0);
				waitForResponse = false;
				timed = false;
				sendAll();
			}
			return sendingAnything;
		}
 
		this.sendAllRemaining = sendAllRemaining;
 
		function preparePostData(batchedLoggingEvents) {
			// Format the logging events
			var formattedMessages = [];
			var currentLoggingEvent;
			var postData = "";
			while ((currentLoggingEvent = batchedLoggingEvents.shift())) {
				formattedMessages.push( appender.getLayout().formatWithException(currentLoggingEvent) );
			}
			// Create the post data string
			if (batchedLoggingEvents.length == 1) {
				postData = formattedMessages.join("");
			} else {
				postData = appender.getLayout().batchHeader +
					formattedMessages.join(appender.getLayout().batchSeparator) +
					appender.getLayout().batchFooter;
			}
			if (contentType == appender.defaults.contentType) {
				postData = appender.getLayout().returnsPostData ? postData :
					urlEncode(postVarName) + "=" + urlEncode(postData);
				// Add the layout name to the post data
				if (postData.length > 0) {
					postData += "&";
				}
				postData += "layout=" + urlEncode(appender.getLayout().toString());
			}
			return postData;
		}
 
		function scheduleSending() {
			window.setTimeout(sendAll, timerInterval);
		}
 
		function xmlHttpErrorHandler() {
			var msg = "AjaxAppender: could not create XMLHttpRequest object. AjaxAppender disabled";
			handleError(msg);
			isSupported = false;
			if (failCallback) {
				failCallback(msg);
			}
		}
 
		function sendRequest(postData, successCallback) {
			try {
				var xmlHttp = getXmlHttp(xmlHttpErrorHandler);
				if (isSupported) {
					xmlHttp.onreadystatechange = function() {
						if (xmlHttp.readyState == 4) {
							if (isHttpRequestSuccessful(xmlHttp)) {
								if (requestSuccessCallback) {
									requestSuccessCallback(xmlHttp);
								}
								if (successCallback) {
									successCallback(xmlHttp);
								}
							} else {
								var msg = "AjaxAppender.append: XMLHttpRequest request to URL " +
									url + " returned status code " + xmlHttp.status;
								handleError(msg);
								if (failCallback) {
									failCallback(msg);
								}
							}
							xmlHttp.onreadystatechange = emptyFunction;
							xmlHttp = null;
						}
					};
					xmlHttp.open("POST", url, true);
					// Add withCredentials to facilitate CORS requests with cookies
					if (withCredentials && withCredentialsSupported) {
						xmlHttp.withCredentials = true;
					}
					try {
						for (var i = 0, header; header = headers[i++]; ) {
							xmlHttp.setRequestHeader(header.name, header.value);
						}
						xmlHttp.setRequestHeader("Content-Type", contentType);
					} catch (headerEx) {
						var msg = "AjaxAppender.append: your browser's XMLHttpRequest implementation" +
							" does not support setRequestHeader, therefore cannot post data. AjaxAppender disabled";
						handleError(msg);
						isSupported = false;
						if (failCallback) {
							failCallback(msg);
						}
						return;
					}
					xmlHttp.send(postData);
				}
			} catch (ex) {
				var errMsg = "AjaxAppender.append: error sending log message to " + url;
				handleError(errMsg, ex);
				isSupported = false;
				if (failCallback) {
					failCallback(errMsg + ". Details: " + getExceptionStringRep(ex));
				}
			}
		}
 
		this.append = function(loggingEvent) {
			if (isSupported) {
				if (!initialized) {
					init();
				}
				queuedLoggingEvents.push(loggingEvent);
				var actualBatchSize = this.getLayout().allowBatching() ? batchSize : 1;
 
				if (queuedLoggingEvents.length >= actualBatchSize) {
					var currentLoggingEvent;
					var batchedLoggingEvents = [];
					while ((currentLoggingEvent = queuedLoggingEvents.shift())) {
						batchedLoggingEvents.push(currentLoggingEvent);
					}
					// Queue this batch of log entries
					queuedRequests.push(batchedLoggingEvents);
 
					// If using a timer, the queue of requests will be processed by the
					// timer function, so nothing needs to be done here.
					if (!timed && (!waitForResponse || (waitForResponse && !sending))) {
						sendAll();
					}
				}
			}
		};
 
		function init() {
			initialized = true;
			// Add unload event to send outstanding messages
			if (sendAllOnUnload) {
				var oldBeforeUnload = window.onbeforeunload;
				window.onbeforeunload = function() {
					if (oldBeforeUnload) {
						oldBeforeUnload();
					}
					sendAllRemaining();
				};
			}
			// Start timer
			if (timed) {
				scheduleSending();
			}
		}
	}
 
	AjaxAppender.prototype = new Appender();
 
	AjaxAppender.prototype.defaults = {
		waitForResponse: false,
		timed: false,
		timerInterval: 1000,
		batchSize: 1,
		sendAllOnUnload: false,
		requestSuccessCallback: null,
		failCallback: null,
		postVarName: "data",
		contentType: "application/x-www-form-urlencoded"
	};
 
	AjaxAppender.prototype.layout = new HttpPostDataLayout();
 
	AjaxAppender.prototype.toString = function() {
		return "AjaxAppender";
	};
 
	log4javascript.AjaxAppender = AjaxAppender;
	/* ---------------------------------------------------------------------- */
	// PopUpAppender and InPageAppender related
 
	function setCookie(name, value, days, path) {
		var expires;
		path = path ? "; path=" + path : "";
		if (days) {
			var date = new Date();
			date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000));
			expires = "; expires=" + date.toGMTString();
		} else {
			expires = "";
		}
		document.cookie = escape(name) + "=" + escape(value) + expires + path;
	}
 
	function getCookie(name) {
		var nameEquals = escape(name) + "=";
		var ca = document.cookie.split(";");
		for (var i = 0, len = ca.length; i < len; i++) {
			var c = ca[i];
			while (c.charAt(0) === " ") {
				c = c.substring(1, c.length);
			}
			if (c.indexOf(nameEquals) === 0) {
				return unescape(c.substring(nameEquals.length, c.length));
			}
		}
		return null;
	}
 
	// Gets the base URL of the location of the log4javascript script.
	// This is far from infallible.
	function getBaseUrl() {
		var scripts = document.getElementsByTagName("script");
		for (var i = 0, len = scripts.length; i < len; ++i) {
			if (scripts[i].src.indexOf("log4javascript") != -1) {
				var lastSlash = scripts[i].src.lastIndexOf("/");
				return (lastSlash == -1) ? "" : scripts[i].src.substr(0, lastSlash + 1);
			}
		}
		return null;
	}
 
	function isLoaded(win) {
		try {
			return bool(win.loaded);
		} catch (ex) {
			return false;
		}
	}
 
	/* ---------------------------------------------------------------------- */
	// ConsoleAppender (prototype for PopUpAppender and InPageAppender)
 
	var ConsoleAppender;
 
	// Create an anonymous function to protect base console methods
	(function() {
		var getConsoleHtmlLines = function() {
			return [
'<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">',
'<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en">',
'	<head>',
'		<title>log4javascript</title>',
'		<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />',
'		<!-- Make IE8 behave like IE7, having gone to all the trouble of making IE work -->',
'		<meta http-equiv="X-UA-Compatible" content="IE=7" />',
'		<script type="text/javascript">var isIe = false, isIePre7 = false;</script>',
'		<!--[if IE]><script type="text/javascript">isIe = true</script><![endif]-->',
'		<!--[if lt IE 7]><script type="text/javascript">isIePre7 = true</script><![endif]-->',
'		<script type="text/javascript">',
'			//<![CDATA[',
'			var loggingEnabled = true;',
'			var logQueuedEventsTimer = null;',
'			var logEntries = [];',
'			var logEntriesAndSeparators = [];',
'			var logItems = [];',
'			var renderDelay = 100;',
'			var unrenderedLogItemsExist = false;',
'			var rootGroup, currentGroup = null;',
'			var loaded = false;',
'			var currentLogItem = null;',
'			var logMainContainer;',
'',
'			function copyProperties(obj, props) {',
'				for (var i in props) {',
'					obj[i] = props[i];',
'				}',
'			}',
'',
'			/*----------------------------------------------------------------*/',
'',
'			function LogItem() {',
'			}',
'',
'			LogItem.prototype = {',
'				mainContainer: null,',
'				wrappedContainer: null,',
'				unwrappedContainer: null,',
'				group: null,',
'',
'				appendToLog: function() {',
'					for (var i = 0, len = this.elementContainers.length; i < len; i++) {',
'						this.elementContainers[i].appendToLog();',
'					}',
'					this.group.update();',
'				},',
'',
'				doRemove: function(doUpdate, removeFromGroup) {',
'					if (this.rendered) {',
'						for (var i = 0, len = this.elementContainers.length; i < len; i++) {',
'							this.elementContainers[i].remove();',
'						}',
'						this.unwrappedElementContainer = null;',
'						this.wrappedElementContainer = null;',
'						this.mainElementContainer = null;',
'					}',
'					if (this.group && removeFromGroup) {',
'						this.group.removeChild(this, doUpdate);',
'					}',
'					if (this === currentLogItem) {',
'						currentLogItem = null;',
'					}',
'				},',
'',
'				remove: function(doUpdate, removeFromGroup) {',
'					this.doRemove(doUpdate, removeFromGroup);',
'				},',
'',
'				render: function() {},',
'',
'				accept: function(visitor) {',
'					visitor.visit(this);',
'				},',
'',
'				getUnwrappedDomContainer: function() {',
'					return this.group.unwrappedElementContainer.contentDiv;',
'				},',
'',
'				getWrappedDomContainer: function() {',
'					return this.group.wrappedElementContainer.contentDiv;',
'				},',
'',
'				getMainDomContainer: function() {',
'					return this.group.mainElementContainer.contentDiv;',
'				}',
'			};',
'',
'			LogItem.serializedItemKeys = {LOG_ENTRY: 0, GROUP_START: 1, GROUP_END: 2};',
'',
'			/*----------------------------------------------------------------*/',
'',
'			function LogItemContainerElement() {',
'			}',
'',
'			LogItemContainerElement.prototype = {',
'				appendToLog: function() {',
'					var insertBeforeFirst = (newestAtTop && this.containerDomNode.hasChildNodes());',
'					if (insertBeforeFirst) {',
'						this.containerDomNode.insertBefore(this.mainDiv, this.containerDomNode.firstChild);',
'					} else {',
'						this.containerDomNode.appendChild(this.mainDiv);',
'					}',
'				}',
'			};',
'',
'			/*----------------------------------------------------------------*/',
'',
'			function SeparatorElementContainer(containerDomNode) {',
'				this.containerDomNode = containerDomNode;',
'				this.mainDiv = document.createElement("div");',
'				this.mainDiv.className = "separator";',
'				this.mainDiv.innerHTML = "&nbsp;";',
'			}',
'',
'			SeparatorElementContainer.prototype = new LogItemContainerElement();',
'',
'			SeparatorElementContainer.prototype.remove = function() {',
'				this.mainDiv.parentNode.removeChild(this.mainDiv);',
'				this.mainDiv = null;',
'			};',
'',
'			/*----------------------------------------------------------------*/',
'',
'			function Separator() {',
'				this.rendered = false;',
'			}',
'',
'			Separator.prototype = new LogItem();',
'',
'			copyProperties(Separator.prototype, {',
'				render: function() {',
'					var containerDomNode = this.group.contentDiv;',
'					if (isIe) {',
'						this.unwrappedElementContainer = new SeparatorElementContainer(this.getUnwrappedDomContainer());',
'						this.wrappedElementContainer = new SeparatorElementContainer(this.getWrappedDomContainer());',
'						this.elementContainers = [this.unwrappedElementContainer, this.wrappedElementContainer];',
'					} else {',
'						this.mainElementContainer = new SeparatorElementContainer(this.getMainDomContainer());',
'						this.elementContainers = [this.mainElementContainer];',
'					}',
'					this.content = this.formattedMessage;',
'					this.rendered = true;',
'				}',
'			});',
'',
'			/*----------------------------------------------------------------*/',
'',
'			function GroupElementContainer(group, containerDomNode, isRoot, isWrapped) {',
'				this.group = group;',
'				this.containerDomNode = containerDomNode;',
'				this.isRoot = isRoot;',
'				this.isWrapped = isWrapped;',
'				this.expandable = false;',
'',
'				if (this.isRoot) {',
'					if (isIe) {',
'						this.contentDiv = logMainContainer.appendChild(document.createElement("div"));',
'						this.contentDiv.id = this.isWrapped ? "log_wrapped" : "log_unwrapped";',
'					} else {',
'						this.contentDiv = logMainContainer;',
'					}',
'				} else {',
'					var groupElementContainer = this;',
'					',
'					this.mainDiv = document.createElement("div");',
'					this.mainDiv.className = "group";',
'',
'					this.headingDiv = this.mainDiv.appendChild(document.createElement("div"));',
'					this.headingDiv.className = "groupheading";',
'',
'					this.expander = this.headingDiv.appendChild(document.createElement("span"));',
'					this.expander.className = "expander unselectable greyedout";',
'					this.expander.unselectable = true;',
'					var expanderText = this.group.expanded ? "-" : "+";',
'					this.expanderTextNode = this.expander.appendChild(document.createTextNode(expanderText));',
'					',
'					this.headingDiv.appendChild(document.createTextNode(" " + this.group.name));',
'',
'					this.contentDiv = this.mainDiv.appendChild(document.createElement("div"));',
'					var contentCssClass = this.group.expanded ? "expanded" : "collapsed";',
'					this.contentDiv.className = "groupcontent " + contentCssClass;',
'',
'					this.expander.onclick = function() {',
'						if (groupElementContainer.group.expandable) {',
'							groupElementContainer.group.toggleExpanded();',
'						}',
'					};',
'				}',
'			}',
'',
'			GroupElementContainer.prototype = new LogItemContainerElement();',
'',
'			copyProperties(GroupElementContainer.prototype, {',
'				toggleExpanded: function() {',
'					if (!this.isRoot) {',
'						var oldCssClass, newCssClass, expanderText;',
'						if (this.group.expanded) {',
'							newCssClass = "expanded";',
'							oldCssClass = "collapsed";',
'							expanderText = "-";',
'						} else {',
'							newCssClass = "collapsed";',
'							oldCssClass = "expanded";',
'							expanderText = "+";',
'						}',
'						replaceClass(this.contentDiv, newCssClass, oldCssClass);',
'						this.expanderTextNode.nodeValue = expanderText;',
'					}',
'				},',
'',
'				remove: function() {',
'					if (!this.isRoot) {',
'						this.headingDiv = null;',
'						this.expander.onclick = null;',
'						this.expander = null;',
'						this.expanderTextNode = null;',
'						this.contentDiv = null;',
'						this.containerDomNode = null;',
'						this.mainDiv.parentNode.removeChild(this.mainDiv);',
'						this.mainDiv = null;',
'					}',
'				},',
'',
'				reverseChildren: function() {',
'					// Invert the order of the log entries',
'					var node = null;',
'',
'					// Remove all the log container nodes',
'					var childDomNodes = [];',
'					while ((node = this.contentDiv.firstChild)) {',
'						this.contentDiv.removeChild(node);',
'						childDomNodes.push(node);',
'					}',
'',
'					// Put them all back in reverse order',
'					while ((node = childDomNodes.pop())) {',
'						this.contentDiv.appendChild(node);',
'					}',
'				},',
'',
'				update: function() {',
'					if (!this.isRoot) {',
'						if (this.group.expandable) {',
'							removeClass(this.expander, "greyedout");',
'						} else {',
'							addClass(this.expander, "greyedout");',
'						}',
'					}',
'				},',
'',
'				clear: function() {',
'					if (this.isRoot) {',
'						this.contentDiv.innerHTML = "";',
'					}',
'				}',
'			});',
'',
'			/*----------------------------------------------------------------*/',
'',
'			function Group(name, isRoot, initiallyExpanded) {',
'				this.name = name;',
'				this.group = null;',
'				this.isRoot = isRoot;',
'				this.initiallyExpanded = initiallyExpanded;',
'				this.elementContainers = [];',
'				this.children = [];',
'				this.expanded = initiallyExpanded;',
'				this.rendered = false;',
'				this.expandable = false;',
'			}',
'',
'			Group.prototype = new LogItem();',
'',
'			copyProperties(Group.prototype, {',
'				addChild: function(logItem) {',
'					this.children.push(logItem);',
'					logItem.group = this;',
'				},',
'',
'				render: function() {',
'					if (isIe) {',
'						var unwrappedDomContainer, wrappedDomContainer;',
'						if (this.isRoot) {',
'							unwrappedDomContainer = logMainContainer;',
'							wrappedDomContainer = logMainContainer;',
'						} else {',
'							unwrappedDomContainer = this.getUnwrappedDomContainer();',
'							wrappedDomContainer = this.getWrappedDomContainer();',
'						}',
'						this.unwrappedElementContainer = new GroupElementContainer(this, unwrappedDomContainer, this.isRoot, false);',
'						this.wrappedElementContainer = new GroupElementContainer(this, wrappedDomContainer, this.isRoot, true);',
'						this.elementContainers = [this.unwrappedElementContainer, this.wrappedElementContainer];',
'					} else {',
'						var mainDomContainer = this.isRoot ? logMainContainer : this.getMainDomContainer();',
'						this.mainElementContainer = new GroupElementContainer(this, mainDomContainer, this.isRoot, false);',
'						this.elementContainers = [this.mainElementContainer];',
'					}',
'					this.rendered = true;',
'				},',
'',
'				toggleExpanded: function() {',
'					this.expanded = !this.expanded;',
'					for (var i = 0, len = this.elementContainers.length; i < len; i++) {',
'						this.elementContainers[i].toggleExpanded();',
'					}',
'				},',
'',
'				expand: function() {',
'					if (!this.expanded) {',
'						this.toggleExpanded();',
'					}',
'				},',
'',
'				accept: function(visitor) {',
'					visitor.visitGroup(this);',
'				},',
'',
'				reverseChildren: function() {',
'					if (this.rendered) {',
'						for (var i = 0, len = this.elementContainers.length; i < len; i++) {',
'							this.elementContainers[i].reverseChildren();',
'						}',
'					}',
'				},',
'',
'				update: function() {',
'					var previouslyExpandable = this.expandable;',
'					this.expandable = (this.children.length !== 0);',
'					if (this.expandable !== previouslyExpandable) {',
'						for (var i = 0, len = this.elementContainers.length; i < len; i++) {',
'							this.elementContainers[i].update();',
'						}',
'					}',
'				},',
'',
'				flatten: function() {',
'					var visitor = new GroupFlattener();',
'					this.accept(visitor);',
'					return visitor.logEntriesAndSeparators;',
'				},',
'',
'				removeChild: function(child, doUpdate) {',
'					array_remove(this.children, child);',
'					child.group = null;',
'					if (doUpdate) {',
'						this.update();',
'					}',
'				},',
'',
'				remove: function(doUpdate, removeFromGroup) {',
'					for (var i = 0, len = this.children.length; i < len; i++) {',
'						this.children[i].remove(false, false);',
'					}',
'					this.children = [];',
'					this.update();',
'					if (this === currentGroup) {',
'						currentGroup = this.group;',
'					}',
'					this.doRemove(doUpdate, removeFromGroup);',
'				},',
'',
'				serialize: function(items) {',
'					items.push([LogItem.serializedItemKeys.GROUP_START, this.name]);',
'					for (var i = 0, len = this.children.length; i < len; i++) {',
'						this.children[i].serialize(items);',
'					}',
'					if (this !== currentGroup) {',
'						items.push([LogItem.serializedItemKeys.GROUP_END]);',
'					}',
'				},',
'',
'				clear: function() {',
'					for (var i = 0, len = this.elementContainers.length; i < len; i++) {',
'						this.elementContainers[i].clear();',
'					}',
'				}',
'			});',
'',
'			/*----------------------------------------------------------------*/',
'',
'			function LogEntryElementContainer() {',
'			}',
'',
'			LogEntryElementContainer.prototype = new LogItemContainerElement();',
'',
'			copyProperties(LogEntryElementContainer.prototype, {',
'				remove: function() {',
'					this.doRemove();',
'				},',
'',
'				doRemove: function() {',
'					this.mainDiv.parentNode.removeChild(this.mainDiv);',
'					this.mainDiv = null;',
'					this.contentElement = null;',
'					this.containerDomNode = null;',
'				},',
'',
'				setContent: function(content, wrappedContent) {',
'					if (content === this.formattedMessage) {',
'						this.contentElement.innerHTML = "";',
'						this.contentElement.appendChild(document.createTextNode(this.formattedMessage));',
'					} else {',
'						this.contentElement.innerHTML = content;',
'					}',
'				},',
'',
'				setSearchMatch: function(isMatch) {',
'					var oldCssClass = isMatch ? "searchnonmatch" : "searchmatch";',
'					var newCssClass = isMatch ? "searchmatch" : "searchnonmatch";',
'					replaceClass(this.mainDiv, newCssClass, oldCssClass);',
'				},',
'',
'				clearSearch: function() {',
'					removeClass(this.mainDiv, "searchmatch");',
'					removeClass(this.mainDiv, "searchnonmatch");',
'				}',
'			});',
'',
'			/*----------------------------------------------------------------*/',
'',
'			function LogEntryWrappedElementContainer(logEntry, containerDomNode) {',
'				this.logEntry = logEntry;',
'				this.containerDomNode = containerDomNode;',
'				this.mainDiv = document.createElement("div");',
'				this.mainDiv.appendChild(document.createTextNode(this.logEntry.formattedMessage));',
'				this.mainDiv.className = "logentry wrapped " + this.logEntry.level;',
'				this.contentElement = this.mainDiv;',
'			}',
'',
'			LogEntryWrappedElementContainer.prototype = new LogEntryElementContainer();',
'',
'			LogEntryWrappedElementContainer.prototype.setContent = function(content, wrappedContent) {',
'				if (content === this.formattedMessage) {',
'					this.contentElement.innerHTML = "";',
'					this.contentElement.appendChild(document.createTextNode(this.formattedMessage));',
'				} else {',
'					this.contentElement.innerHTML = wrappedContent;',
'				}',
'			};',
'',
'			/*----------------------------------------------------------------*/',
'',
'			function LogEntryUnwrappedElementContainer(logEntry, containerDomNode) {',
'				this.logEntry = logEntry;',
'				this.containerDomNode = containerDomNode;',
'				this.mainDiv = document.createElement("div");',
'				this.mainDiv.className = "logentry unwrapped " + this.logEntry.level;',
'				this.pre = this.mainDiv.appendChild(document.createElement("pre"));',
'				this.pre.appendChild(document.createTextNode(this.logEntry.formattedMessage));',
'				this.pre.className = "unwrapped";',
'				this.contentElement = this.pre;',
'			}',
'',
'			LogEntryUnwrappedElementContainer.prototype = new LogEntryElementContainer();',
'',
'			LogEntryUnwrappedElementContainer.prototype.remove = function() {',
'				this.doRemove();',
'				this.pre = null;',
'			};',
'',
'			/*----------------------------------------------------------------*/',
'',
'			function LogEntryMainElementContainer(logEntry, containerDomNode) {',
'				this.logEntry = logEntry;',
'				this.containerDomNode = containerDomNode;',
'				this.mainDiv = document.createElement("div");',
'				this.mainDiv.className = "logentry nonielogentry " + this.logEntry.level;',
'				this.contentElement = this.mainDiv.appendChild(document.createElement("span"));',
'				this.contentElement.appendChild(document.createTextNode(this.logEntry.formattedMessage));',
'			}',
'',
'			LogEntryMainElementContainer.prototype = new LogEntryElementContainer();',
'',
'			/*----------------------------------------------------------------*/',
'',
'			function LogEntry(level, formattedMessage) {',
'				this.level = level;',
'				this.formattedMessage = formattedMessage;',
'				this.rendered = false;',
'			}',
'',
'			LogEntry.prototype = new LogItem();',
'',
'			copyProperties(LogEntry.prototype, {',
'				render: function() {',
'					var logEntry = this;',
'					var containerDomNode = this.group.contentDiv;',
'',
'					// Support for the CSS attribute white-space in IE for Windows is',
'					// non-existent pre version 6 and slightly odd in 6, so instead',
'					// use two different HTML elements',
'					if (isIe) {',
'						this.formattedMessage = this.formattedMessage.replace(/\\r\\n/g, "\\r"); // Workaround for IE\'s treatment of white space',
'						this.unwrappedElementContainer = new LogEntryUnwrappedElementContainer(this, this.getUnwrappedDomContainer());',
'						this.wrappedElementContainer = new LogEntryWrappedElementContainer(this, this.getWrappedDomContainer());',
'						this.elementContainers = [this.unwrappedElementContainer, this.wrappedElementContainer];',
'					} else {',
'						this.mainElementContainer = new LogEntryMainElementContainer(this, this.getMainDomContainer());',
'						this.elementContainers = [this.mainElementContainer];',
'					}',
'					this.content = this.formattedMessage;',
'					this.rendered = true;',
'				},',
'',
'				setContent: function(content, wrappedContent) {',
'					if (content != this.content) {',
'						if (isIe && (content !== this.formattedMessage)) {',
'							content = content.replace(/\\r\\n/g, "\\r"); // Workaround for IE\'s treatment of white space',
'						}',
'						for (var i = 0, len = this.elementContainers.length; i < len; i++) {',
'							this.elementContainers[i].setContent(content, wrappedContent);',
'						}',
'						this.content = content;',
'					}',
'				},',
'',
'				getSearchMatches: function() {',
'					var matches = [];',
'					var i, len;',
'					if (isIe) {',
'						var unwrappedEls = getElementsByClass(this.unwrappedElementContainer.mainDiv, "searchterm", "span");',
'						var wrappedEls = getElementsByClass(this.wrappedElementContainer.mainDiv, "searchterm", "span");',
'						for (i = 0, len = unwrappedEls.length; i < len; i++) {',
'							matches[i] = new Match(this.level, null, unwrappedEls[i], wrappedEls[i]);',
'						}',
'					} else {',
'						var els = getElementsByClass(this.mainElementContainer.mainDiv, "searchterm", "span");',
'						for (i = 0, len = els.length; i < len; i++) {',
'							matches[i] = new Match(this.level, els[i]);',
'						}',
'					}',
'					return matches;',
'				},',
'',
'				setSearchMatch: function(isMatch) {',
'					for (var i = 0, len = this.elementContainers.length; i < len; i++) {',
'						this.elementContainers[i].setSearchMatch(isMatch);',
'					}',
'				},',
'',
'				clearSearch: function() {',
'					for (var i = 0, len = this.elementContainers.length; i < len; i++) {',
'						this.elementContainers[i].clearSearch();',
'					}',
'				},',
'',
'				accept: function(visitor) {',
'					visitor.visitLogEntry(this);',
'				},',
'',
'				serialize: function(items) {',
'					items.push([LogItem.serializedItemKeys.LOG_ENTRY, this.level, this.formattedMessage]);',
'				}',
'			});',
'',
'			/*----------------------------------------------------------------*/',
'',
'			function LogItemVisitor() {',
'			}',
'',
'			LogItemVisitor.prototype = {',
'				visit: function(logItem) {',
'				},',
'',
'				visitParent: function(logItem) {',
'					if (logItem.group) {',
'						logItem.group.accept(this);',
'					}',
'				},',
'',
'				visitChildren: function(logItem) {',
'					for (var i = 0, len = logItem.children.length; i < len; i++) {',
'						logItem.children[i].accept(this);',
'					}',
'				},',
'',
'				visitLogEntry: function(logEntry) {',
'					this.visit(logEntry);',
'				},',
'',
'				visitSeparator: function(separator) {',
'					this.visit(separator);',
'				},',
'',
'				visitGroup: function(group) {',
'					this.visit(group);',
'				}',
'			};',
'',
'			/*----------------------------------------------------------------*/',
'',
'			function GroupFlattener() {',
'				this.logEntriesAndSeparators = [];',
'			}',
'',
'			GroupFlattener.prototype = new LogItemVisitor();',
'',
'			GroupFlattener.prototype.visitGroup = function(group) {',
'				this.visitChildren(group);',
'			};',
'',
'			GroupFlattener.prototype.visitLogEntry = function(logEntry) {',
'				this.logEntriesAndSeparators.push(logEntry);',
'			};',
'',
'			GroupFlattener.prototype.visitSeparator = function(separator) {',
'				this.logEntriesAndSeparators.push(separator);',
'			};',
'',
'			/*----------------------------------------------------------------*/',
'',
'			window.onload = function() {',
'				// Sort out document.domain',
'				if (location.search) {',
'					var queryBits = unescape(location.search).substr(1).split("&"), nameValueBits;',
'					for (var i = 0, len = queryBits.length; i < len; i++) {',
'						nameValueBits = queryBits[i].split("=");',
'						if (nameValueBits[0] == "log4javascript_domain") {',
'							document.domain = nameValueBits[1];',
'							break;',
'						}',
'					}',
'				}',
'',
'				// Create DOM objects',
'				logMainContainer = $("log");',
'				if (isIePre7) {',
'					addClass(logMainContainer, "oldIe");',
'				}',
'',
'				rootGroup = new Group("root", true);',
'				rootGroup.render();',
'				currentGroup = rootGroup;',
'				',
'				setCommandInputWidth();',
'				setLogContainerHeight();',
'				toggleLoggingEnabled();',
'				toggleSearchEnabled();',
'				toggleSearchFilter();',
'				toggleSearchHighlight();',
'				applyFilters();',
'				checkAllLevels();',
'				toggleWrap();',
'				toggleNewestAtTop();',
'				toggleScrollToLatest();',
'				renderQueuedLogItems();',
'				loaded = true;',
'				$("command").value = "";',
'				$("command").autocomplete = "off";',
'				$("command").onkeydown = function(evt) {',
'					evt = getEvent(evt);',
'					if (evt.keyCode == 10 || evt.keyCode == 13) { // Return/Enter',
'						evalCommandLine();',
'						stopPropagation(evt);',
'					} else if (evt.keyCode == 27) { // Escape',
'						this.value = "";',
'						this.focus();',
'					} else if (evt.keyCode == 38 && commandHistory.length > 0) { // Up',
'						currentCommandIndex = Math.max(0, currentCommandIndex - 1);',
'						this.value = commandHistory[currentCommandIndex];',
'						moveCaretToEnd(this);',
'					} else if (evt.keyCode == 40 && commandHistory.length > 0) { // Down',
'						currentCommandIndex = Math.min(commandHistory.length - 1, currentCommandIndex + 1);',
'						this.value = commandHistory[currentCommandIndex];',
'						moveCaretToEnd(this);',
'					}',
'				};',
'',
'				// Prevent the keypress moving the caret in Firefox',
'				$("command").onkeypress = function(evt) {',
'					evt = getEvent(evt);',
'					if (evt.keyCode == 38 && commandHistory.length > 0 && evt.preventDefault) { // Up',
'						evt.preventDefault();',
'					}',
'				};',
'',
'				// Prevent the keyup event blurring the input in Opera',
'				$("command").onkeyup = function(evt) {',
'					evt = getEvent(evt);',
'					if (evt.keyCode == 27 && evt.preventDefault) { // Up',
'						evt.preventDefault();',
'						this.focus();',
'					}',
'				};',
'',
'				// Add document keyboard shortcuts',
'				document.onkeydown = function keyEventHandler(evt) {',
'					evt = getEvent(evt);',
'					switch (evt.keyCode) {',
'						case 69: // Ctrl + shift + E: re-execute last command',
'							if (evt.shiftKey && (evt.ctrlKey || evt.metaKey)) {',
'								evalLastCommand();',
'								cancelKeyEvent(evt);',
'								return false;',
'							}',
'							break;',
'						case 75: // Ctrl + shift + K: focus search',
'							if (evt.shiftKey && (evt.ctrlKey || evt.metaKey)) {',
'								focusSearch();',
'								cancelKeyEvent(evt);',
'								return false;',
'							}',
'							break;',
'						case 40: // Ctrl + shift + down arrow: focus command line',
'						case 76: // Ctrl + shift + L: focus command line',
'							if (evt.shiftKey && (evt.ctrlKey || evt.metaKey)) {',
'								focusCommandLine();',
'								cancelKeyEvent(evt);',
'								return false;',
'							}',
'							break;',
'					}',
'				};',
'',
'				// Workaround to make sure log div starts at the correct size',
'				setTimeout(setLogContainerHeight, 20);',
'',
'				setShowCommandLine(showCommandLine);',
'				doSearch();',
'			};',
'',
'			window.onunload = function() {',
'				if (mainWindowExists()) {',
'					appender.unload();',
'				}',
'				appender = null;',
'			};',
'',
'			/*----------------------------------------------------------------*/',
'',
'			function toggleLoggingEnabled() {',
'				setLoggingEnabled($("enableLogging").checked);',
'			}',
'',
'			function setLoggingEnabled(enable) {',
'				loggingEnabled = enable;',
'			}',
'',
'			var appender = null;',
'',
'			function setAppender(appenderParam) {',
'				appender = appenderParam;',
'			}',
'',
'			function setShowCloseButton(showCloseButton) {',
'				$("closeButton").style.display = showCloseButton ? "inline" : "none";',
'			}',
'',
'			function setShowHideButton(showHideButton) {',
'				$("hideButton").style.display = showHideButton ? "inline" : "none";',
'			}',
'',
'			var newestAtTop = false;',
'',
'			/*----------------------------------------------------------------*/',
'',
'			function LogItemContentReverser() {',
'			}',
'			',
'			LogItemContentReverser.prototype = new LogItemVisitor();',
'			',
'			LogItemContentReverser.prototype.visitGroup = function(group) {',
'				group.reverseChildren();',
'				this.visitChildren(group);',
'			};',
'',
'			/*----------------------------------------------------------------*/',
'',
'			function setNewestAtTop(isNewestAtTop) {',
'				var oldNewestAtTop = newestAtTop;',
'				var i, iLen, j, jLen;',
'				newestAtTop = Boolean(isNewestAtTop);',
'				if (oldNewestAtTop != newestAtTop) {',
'					var visitor = new LogItemContentReverser();',
'					rootGroup.accept(visitor);',
'',
'					// Reassemble the matches array',
'					if (currentSearch) {',
'						var currentMatch = currentSearch.matches[currentMatchIndex];',
'						var matchIndex = 0;',
'						var matches = [];',
'						var actOnLogEntry = function(logEntry) {',
'							var logEntryMatches = logEntry.getSearchMatches();',
'							for (j = 0, jLen = logEntryMatches.length; j < jLen; j++) {',
'								matches[matchIndex] = logEntryMatches[j];',
'								if (currentMatch && logEntryMatches[j].equals(currentMatch)) {',
'									currentMatchIndex = matchIndex;',
'								}',
'								matchIndex++;',
'							}',
'						};',
'						if (newestAtTop) {',
'							for (i = logEntries.length - 1; i >= 0; i--) {',
'								actOnLogEntry(logEntries[i]);',
'							}',
'						} else {',
'							for (i = 0, iLen = logEntries.length; i < iLen; i++) {',
'								actOnLogEntry(logEntries[i]);',
'							}',
'						}',
'						currentSearch.matches = matches;',
'						if (currentMatch) {',
'							currentMatch.setCurrent();',
'						}',
'					} else if (scrollToLatest) {',
'						doScrollToLatest();',
'					}',
'				}',
'				$("newestAtTop").checked = isNewestAtTop;',
'			}',
'',
'			function toggleNewestAtTop() {',
'				var isNewestAtTop = $("newestAtTop").checked;',
'				setNewestAtTop(isNewestAtTop);',
'			}',
'',
'			var scrollToLatest = true;',
'',
'			function setScrollToLatest(isScrollToLatest) {',
'				scrollToLatest = isScrollToLatest;',
'				if (scrollToLatest) {',
'					doScrollToLatest();',
'				}',
'				$("scrollToLatest").checked = isScrollToLatest;',
'			}',
'',
'			function toggleScrollToLatest() {',
'				var isScrollToLatest = $("scrollToLatest").checked;',
'				setScrollToLatest(isScrollToLatest);',
'			}',
'',
'			function doScrollToLatest() {',
'				var l = logMainContainer;',
'				if (typeof l.scrollTop != "undefined") {',
'					if (newestAtTop) {',
'						l.scrollTop = 0;',
'					} else {',
'						var latestLogEntry = l.lastChild;',
'						if (latestLogEntry) {',
'							l.scrollTop = l.scrollHeight;',
'						}',
'					}',
'				}',
'			}',
'',
'			var closeIfOpenerCloses = true;',
'',
'			function setCloseIfOpenerCloses(isCloseIfOpenerCloses) {',
'				closeIfOpenerCloses = isCloseIfOpenerCloses;',
'			}',
'',
'			var maxMessages = null;',
'',
'			function setMaxMessages(max) {',
'				maxMessages = max;',
'				pruneLogEntries();',
'			}',
'',
'			var showCommandLine = false;',
'',
'			function setShowCommandLine(isShowCommandLine) {',
'				showCommandLine = isShowCommandLine;',
'				if (loaded) {',
'					$("commandLine").style.display = showCommandLine ? "block" : "none";',
'					setCommandInputWidth();',
'					setLogContainerHeight();',
'				}',
'			}',
'',
'			function focusCommandLine() {',
'				if (loaded) {',
'					$("command").focus();',
'				}',
'			}',
'',
'			function focusSearch() {',
'				if (loaded) {',
'					$("searchBox").focus();',
'				}',
'			}',
'',
'			function getLogItems() {',
'				var items = [];',
'				for (var i = 0, len = logItems.length; i < len; i++) {',
'					logItems[i].serialize(items);',
'				}',
'				return items;',
'			}',
'',
'			function setLogItems(items) {',
'				var loggingReallyEnabled = loggingEnabled;',
'				// Temporarily turn logging on',
'				loggingEnabled = true;',
'				for (var i = 0, len = items.length; i < len; i++) {',
'					switch (items[i][0]) {',
'						case LogItem.serializedItemKeys.LOG_ENTRY:',
'							log(items[i][1], items[i][2]);',
'							break;',
'						case LogItem.serializedItemKeys.GROUP_START:',
'							group(items[i][1]);',
'							break;',
'						case LogItem.serializedItemKeys.GROUP_END:',
'							groupEnd();',
'							break;',
'					}',
'				}',
'				loggingEnabled = loggingReallyEnabled;',
'			}',
'',
'			function log(logLevel, formattedMessage) {',
'				if (loggingEnabled) {',
'					var logEntry = new LogEntry(logLevel, formattedMessage);',
'					logEntries.push(logEntry);',
'					logEntriesAndSeparators.push(logEntry);',
'					logItems.push(logEntry);',
'					currentGroup.addChild(logEntry);',
'					if (loaded) {',
'						if (logQueuedEventsTimer !== null) {',
'							clearTimeout(logQueuedEventsTimer);',
'						}',
'						logQueuedEventsTimer = setTimeout(renderQueuedLogItems, renderDelay);',
'						unrenderedLogItemsExist = true;',
'					}',
'				}',
'			}',
'',
'			function renderQueuedLogItems() {',
'				logQueuedEventsTimer = null;',
'				var pruned = pruneLogEntries();',
'',
'				// Render any unrendered log entries and apply the current search to them',
'				var initiallyHasMatches = currentSearch ? currentSearch.hasMatches() : false;',
'				for (var i = 0, len = logItems.length; i < len; i++) {',
'					if (!logItems[i].rendered) {',
'						logItems[i].render();',
'						logItems[i].appendToLog();',
'						if (currentSearch && (logItems[i] instanceof LogEntry)) {',
'							currentSearch.applyTo(logItems[i]);',
'						}',
'					}',
'				}',
'				if (currentSearch) {',
'					if (pruned) {',
'						if (currentSearch.hasVisibleMatches()) {',
'							if (currentMatchIndex === null) {',
'								setCurrentMatchIndex(0);',
'							}',
'							displayMatches();',
'						} else {',
'							displayNoMatches();',
'						}',
'					} else if (!initiallyHasMatches && currentSearch.hasVisibleMatches()) {',
'						setCurrentMatchIndex(0);',
'						displayMatches();',
'					}',
'				}',
'				if (scrollToLatest) {',
'					doScrollToLatest();',
'				}',
'				unrenderedLogItemsExist = false;',
'			}',
'',
'			function pruneLogEntries() {',
'				if ((maxMessages !== null) && (logEntriesAndSeparators.length > maxMessages)) {',
'					var numberToDelete = logEntriesAndSeparators.length - maxMessages;',
'					var prunedLogEntries = logEntriesAndSeparators.slice(0, numberToDelete);',
'					if (currentSearch) {',
'						currentSearch.removeMatches(prunedLogEntries);',
'					}',
'					var group;',
'					for (var i = 0; i < numberToDelete; i++) {',
'						group = logEntriesAndSeparators[i].group;',
'						array_remove(logItems, logEntriesAndSeparators[i]);',
'						array_remove(logEntries, logEntriesAndSeparators[i]);',
'						logEntriesAndSeparators[i].remove(true, true);',
'						if (group.children.length === 0 && group !== currentGroup && group !== rootGroup) {',
'							array_remove(logItems, group);',
'							group.remove(true, true);',
'						}',
'					}',
'					logEntriesAndSeparators = array_removeFromStart(logEntriesAndSeparators, numberToDelete);',
'					return true;',
'				}',
'				return false;',
'			}',
'',
'			function group(name, startExpanded) {',
'				if (loggingEnabled) {',
'					initiallyExpanded = (typeof startExpanded === "undefined") ? true : Boolean(startExpanded);',
'					var newGroup = new Group(name, false, initiallyExpanded);',
'					currentGroup.addChild(newGroup);',
'					currentGroup = newGroup;',
'					logItems.push(newGroup);',
'					if (loaded) {',
'						if (logQueuedEventsTimer !== null) {',
'							clearTimeout(logQueuedEventsTimer);',
'						}',
'						logQueuedEventsTimer = setTimeout(renderQueuedLogItems, renderDelay);',
'						unrenderedLogItemsExist = true;',
'					}',
'				}',
'			}',
'',
'			function groupEnd() {',
'				currentGroup = (currentGroup === rootGroup) ? rootGroup : currentGroup.group;',
'			}',
'',
'			function mainPageReloaded() {',
'				currentGroup = rootGroup;',
'				var separator = new Separator();',
'				logEntriesAndSeparators.push(separator);',
'				logItems.push(separator);',
'				currentGroup.addChild(separator);',
'			}',
'',
'			function closeWindow() {',
'				if (appender && mainWindowExists()) {',
'					appender.close(true);',
'				} else {',
'					window.close();',
'				}',
'			}',
'',
'			function hide() {',
'				if (appender && mainWindowExists()) {',
'					appender.hide();',
'				}',
'			}',
'',
'			var mainWindow = window;',
'			var windowId = "log4javascriptConsoleWindow_" + new Date().getTime() + "_" + ("" + Math.random()).substr(2);',
'',
'			function setMainWindow(win) {',
'				mainWindow = win;',
'				mainWindow[windowId] = window;',
'				// If this is a pop-up, poll the opener to see if it\'s closed',
'				if (opener && closeIfOpenerCloses) {',
'					pollOpener();',
'				}',
'			}',
'',
'			function pollOpener() {',
'				if (closeIfOpenerCloses) {',
'					if (mainWindowExists()) {',
'						setTimeout(pollOpener, 500);',
'					} else {',
'						closeWindow();',
'					}',
'				}',
'			}',
'',
'			function mainWindowExists() {',
'				try {',
'					return (mainWindow && !mainWindow.closed &&',
'						mainWindow[windowId] == window);',
'				} catch (ex) {}',
'				return false;',
'			}',
'',
'			var logLevels = ["TRACE", "DEBUG", "INFO", "WARN", "ERROR", "FATAL"];',
'',
'			function getCheckBox(logLevel) {',
'				return $("switch_" + logLevel);',
'			}',
'',
'			function getIeWrappedLogContainer() {',
'				return $("log_wrapped");',
'			}',
'',
'			function getIeUnwrappedLogContainer() {',
'				return $("log_unwrapped");',
'			}',
'',
'			function applyFilters() {',
'				for (var i = 0; i < logLevels.length; i++) {',
'					if (getCheckBox(logLevels[i]).checked) {',
'						addClass(logMainContainer, logLevels[i]);',
'					} else {',
'						removeClass(logMainContainer, logLevels[i]);',
'					}',
'				}',
'				updateSearchFromFilters();',
'			}',
'',
'			function toggleAllLevels() {',
'				var turnOn = $("switch_ALL").checked;',
'				for (var i = 0; i < logLevels.length; i++) {',
'					getCheckBox(logLevels[i]).checked = turnOn;',
'					if (turnOn) {',
'						addClass(logMainContainer, logLevels[i]);',
'					} else {',
'						removeClass(logMainContainer, logLevels[i]);',
'					}',
'				}',
'			}',
'',
'			function checkAllLevels() {',
'				for (var i = 0; i < logLevels.length; i++) {',
'					if (!getCheckBox(logLevels[i]).checked) {',
'						getCheckBox("ALL").checked = false;',
'						return;',
'					}',
'				}',
'				getCheckBox("ALL").checked = true;',
'			}',
'',
'			function clearLog() {',
'				rootGroup.clear();',
'				currentGroup = rootGroup;',
'				logEntries = [];',
'				logItems = [];',
'				logEntriesAndSeparators = [];',
' 				doSearch();',
'			}',
'',
'			function toggleWrap() {',
'				var enable = $("wrap").checked;',
'				if (enable) {',
'					addClass(logMainContainer, "wrap");',
'				} else {',
'					removeClass(logMainContainer, "wrap");',
'				}',
'				refreshCurrentMatch();',
'			}',
'',
'			/* ------------------------------------------------------------------- */',
'',
'			// Search',
'',
'			var searchTimer = null;',
'',
'			function scheduleSearch() {',
'				try {',
'					clearTimeout(searchTimer);',
'				} catch (ex) {',
'					// Do nothing',
'				}',
'				searchTimer = setTimeout(doSearch, 500);',
'			}',
'',
'			function Search(searchTerm, isRegex, searchRegex, isCaseSensitive) {',
'				this.searchTerm = searchTerm;',
'				this.isRegex = isRegex;',
'				this.searchRegex = searchRegex;',
'				this.isCaseSensitive = isCaseSensitive;',
'				this.matches = [];',
'			}',
'',
'			Search.prototype = {',
'				hasMatches: function() {',
'					return this.matches.length > 0;',
'				},',
'',
'				hasVisibleMatches: function() {',
'					if (this.hasMatches()) {',
'						for (var i = 0; i < this.matches.length; i++) {',
'							if (this.matches[i].isVisible()) {',
'								return true;',
'							}',
'						}',
'					}',
'					return false;',
'				},',
'',
'				match: function(logEntry) {',
'					var entryText = String(logEntry.formattedMessage);',
'					var matchesSearch = false;',
'					if (this.isRegex) {',
'						matchesSearch = this.searchRegex.test(entryText);',
'					} else if (this.isCaseSensitive) {',
'						matchesSearch = (entryText.indexOf(this.searchTerm) > -1);',
'					} else {',
'						matchesSearch = (entryText.toLowerCase().indexOf(this.searchTerm.toLowerCase()) > -1);',
'					}',
'					return matchesSearch;',
'				},',
'',
'				getNextVisibleMatchIndex: function() {',
'					for (var i = currentMatchIndex + 1; i < this.matches.length; i++) {',
'						if (this.matches[i].isVisible()) {',
'							return i;',
'						}',
'					}',
'					// Start again from the first match',
'					for (i = 0; i <= currentMatchIndex; i++) {',
'						if (this.matches[i].isVisible()) {',
'							return i;',
'						}',
'					}',
'					return -1;',
'				},',
'',
'				getPreviousVisibleMatchIndex: function() {',
'					for (var i = currentMatchIndex - 1; i >= 0; i--) {',
'						if (this.matches[i].isVisible()) {',
'							return i;',
'						}',
'					}',
'					// Start again from the last match',
'					for (var i = this.matches.length - 1; i >= currentMatchIndex; i--) {',
'						if (this.matches[i].isVisible()) {',
'							return i;',
'						}',
'					}',
'					return -1;',
'				},',
'',
'				applyTo: function(logEntry) {',
'					var doesMatch = this.match(logEntry);',
'					if (doesMatch) {',
'						logEntry.group.expand();',
'						logEntry.setSearchMatch(true);',
'						var logEntryContent;',
'						var wrappedLogEntryContent;',
'						var searchTermReplacementStartTag = "<span class=\\\"searchterm\\\">";',
'						var searchTermReplacementEndTag = "<" + "/span>";',
'						var preTagName = isIe ? "pre" : "span";',
'						var preStartTag = "<" + preTagName + " class=\\\"pre\\\">";',
'						var preEndTag = "<" + "/" + preTagName + ">";',
'						var startIndex = 0;',
'						var searchIndex, matchedText, textBeforeMatch;',
'						if (this.isRegex) {',
'							var flags = this.isCaseSensitive ? "g" : "gi";',
'							var capturingRegex = new RegExp("(" + this.searchRegex.source + ")", flags);',
'',
'							// Replace the search term with temporary tokens for the start and end tags',
'							var rnd = ("" + Math.random()).substr(2);',
'							var startToken = "%%s" + rnd + "%%";',
'							var endToken = "%%e" + rnd + "%%";',
'							logEntryContent = logEntry.formattedMessage.replace(capturingRegex, startToken + "$1" + endToken);',
'',
'							// Escape the HTML to get rid of angle brackets',
'							logEntryContent = escapeHtml(logEntryContent);',
'',
'							// Substitute the proper HTML back in for the search match',
'							var result;',
'							var searchString = logEntryContent;',
'							logEntryContent = "";',
'							wrappedLogEntryContent = "";',
'							while ((searchIndex = searchString.indexOf(startToken, startIndex)) > -1) {',
'								var endTokenIndex = searchString.indexOf(endToken, searchIndex);',
'								matchedText = searchString.substring(searchIndex + startToken.length, endTokenIndex);',
'								textBeforeMatch = searchString.substring(startIndex, searchIndex);',
'								logEntryContent += preStartTag + textBeforeMatch + preEndTag;',
'								logEntryContent += searchTermReplacementStartTag + preStartTag + matchedText +',
'									preEndTag + searchTermReplacementEndTag;',
'								if (isIe) {',
'									wrappedLogEntryContent += textBeforeMatch + searchTermReplacementStartTag +',
'										matchedText + searchTermReplacementEndTag;',
'								}',
'								startIndex = endTokenIndex + endToken.length;',
'							}',
'							logEntryContent += preStartTag + searchString.substr(startIndex) + preEndTag;',
'							if (isIe) {',
'								wrappedLogEntryContent += searchString.substr(startIndex);',
'							}',
'						} else {',
'							logEntryContent = "";',
'							wrappedLogEntryContent = "";',
'							var searchTermReplacementLength = searchTermReplacementStartTag.length +',
'								this.searchTerm.length + searchTermReplacementEndTag.length;',
'							var searchTermLength = this.searchTerm.length;',
'							var searchTermLowerCase = this.searchTerm.toLowerCase();',
'							var logTextLowerCase = logEntry.formattedMessage.toLowerCase();',
'							while ((searchIndex = logTextLowerCase.indexOf(searchTermLowerCase, startIndex)) > -1) {',
'								matchedText = escapeHtml(logEntry.formattedMessage.substr(searchIndex, this.searchTerm.length));',
'								textBeforeMatch = escapeHtml(logEntry.formattedMessage.substring(startIndex, searchIndex));',
'								var searchTermReplacement = searchTermReplacementStartTag +',
'									preStartTag + matchedText + preEndTag + searchTermReplacementEndTag;',
'								logEntryContent += preStartTag + textBeforeMatch + preEndTag + searchTermReplacement;',
'								if (isIe) {',
'									wrappedLogEntryContent += textBeforeMatch + searchTermReplacementStartTag +',
'										matchedText + searchTermReplacementEndTag;',
'								}',
'								startIndex = searchIndex + searchTermLength;',
'							}',
'							var textAfterLastMatch = escapeHtml(logEntry.formattedMessage.substr(startIndex));',
'							logEntryContent += preStartTag + textAfterLastMatch + preEndTag;',
'							if (isIe) {',
'								wrappedLogEntryContent += textAfterLastMatch;',
'							}',
'						}',
'						logEntry.setContent(logEntryContent, wrappedLogEntryContent);',
'						var logEntryMatches = logEntry.getSearchMatches();',
'						this.matches = this.matches.concat(logEntryMatches);',
'					} else {',
'						logEntry.setSearchMatch(false);',
'						logEntry.setContent(logEntry.formattedMessage, logEntry.formattedMessage);',
'					}',
'					return doesMatch;',
'				},',
'',
'				removeMatches: function(logEntries) {',
'					var matchesToRemoveCount = 0;',
'					var currentMatchRemoved = false;',
'					var matchesToRemove = [];',
'					var i, iLen, j, jLen;',
'',
'					// Establish the list of matches to be removed',
'					for (i = 0, iLen = this.matches.length; i < iLen; i++) {',
'						for (j = 0, jLen = logEntries.length; j < jLen; j++) {',
'							if (this.matches[i].belongsTo(logEntries[j])) {',
'								matchesToRemove.push(this.matches[i]);',
'								if (i === currentMatchIndex) {',
'									currentMatchRemoved = true;',
'								}',
'							}',
'						}',
'					}',
'',
'					// Set the new current match index if the current match has been deleted',
'					// This will be the first match that appears after the first log entry being',
'					// deleted, if one exists; otherwise, it\'s the first match overall',
'					var newMatch = currentMatchRemoved ? null : this.matches[currentMatchIndex];',
'					if (currentMatchRemoved) {',
'						for (i = currentMatchIndex, iLen = this.matches.length; i < iLen; i++) {',
'							if (this.matches[i].isVisible() && !array_contains(matchesToRemove, this.matches[i])) {',
'								newMatch = this.matches[i];',
'								break;',
'							}',
'						}',
'					}',
'',
'					// Remove the matches',
'					for (i = 0, iLen = matchesToRemove.length; i < iLen; i++) {',
'						array_remove(this.matches, matchesToRemove[i]);',
'						matchesToRemove[i].remove();',
'					}',
'',
'					// Set the new match, if one exists',
'					if (this.hasVisibleMatches()) {',
'						if (newMatch === null) {',
'							setCurrentMatchIndex(0);',
'						} else {',
'							// Get the index of the new match',
'							var newMatchIndex = 0;',
'							for (i = 0, iLen = this.matches.length; i < iLen; i++) {',
'								if (newMatch === this.matches[i]) {',
'									newMatchIndex = i;',
'									break;',
'								}',
'							}',
'							setCurrentMatchIndex(newMatchIndex);',
'						}',
'					} else {',
'						currentMatchIndex = null;',
'						displayNoMatches();',
'					}',
'				}',
'			};',
'',
'			function getPageOffsetTop(el, container) {',
'				var currentEl = el;',
'				var y = 0;',
'				while (currentEl && currentEl != container) {',
'					y += currentEl.offsetTop;',
'					currentEl = currentEl.offsetParent;',
'				}',
'				return y;',
'			}',
'',
'			function scrollIntoView(el) {',
'				var logContainer = logMainContainer;',
'				// Check if the whole width of the element is visible and centre if not',
'				if (!$("wrap").checked) {',
'					var logContainerLeft = logContainer.scrollLeft;',
'					var logContainerRight = logContainerLeft  + logContainer.offsetWidth;',
'					var elLeft = el.offsetLeft;',
'					var elRight = elLeft + el.offsetWidth;',
'					if (elLeft < logContainerLeft || elRight > logContainerRight) {',
'						logContainer.scrollLeft = elLeft - (logContainer.offsetWidth - el.offsetWidth) / 2;',
'					}',
'				}',
'				// Check if the whole height of the element is visible and centre if not',
'				var logContainerTop = logContainer.scrollTop;',
'				var logContainerBottom = logContainerTop  + logContainer.offsetHeight;',
'				var elTop = getPageOffsetTop(el) - getToolBarsHeight();',
'				var elBottom = elTop + el.offsetHeight;',
'				if (elTop < logContainerTop || elBottom > logContainerBottom) {',
'					logContainer.scrollTop = elTop - (logContainer.offsetHeight - el.offsetHeight) / 2;',
'				}',
'			}',
'',
'			function Match(logEntryLevel, spanInMainDiv, spanInUnwrappedPre, spanInWrappedDiv) {',
'				this.logEntryLevel = logEntryLevel;',
'				this.spanInMainDiv = spanInMainDiv;',
'				if (isIe) {',
'					this.spanInUnwrappedPre = spanInUnwrappedPre;',
'					this.spanInWrappedDiv = spanInWrappedDiv;',
'				}',
'				this.mainSpan = isIe ? spanInUnwrappedPre : spanInMainDiv;',
'			}',
'',
'			Match.prototype = {',
'				equals: function(match) {',
'					return this.mainSpan === match.mainSpan;',
'				},',
'',
'				setCurrent: function() {',
'					if (isIe) {',
'						addClass(this.spanInUnwrappedPre, "currentmatch");',
'						addClass(this.spanInWrappedDiv, "currentmatch");',
'						// Scroll the visible one into view',
'						var elementToScroll = $("wrap").checked ? this.spanInWrappedDiv : this.spanInUnwrappedPre;',
'						scrollIntoView(elementToScroll);',
'					} else {',
'						addClass(this.spanInMainDiv, "currentmatch");',
'						scrollIntoView(this.spanInMainDiv);',
'					}',
'				},',
'',
'				belongsTo: function(logEntry) {',
'					if (isIe) {',
'						return isDescendant(this.spanInUnwrappedPre, logEntry.unwrappedPre);',
'					} else {',
'						return isDescendant(this.spanInMainDiv, logEntry.mainDiv);',
'					}',
'				},',
'',
'				setNotCurrent: function() {',
'					if (isIe) {',
'						removeClass(this.spanInUnwrappedPre, "currentmatch");',
'						removeClass(this.spanInWrappedDiv, "currentmatch");',
'					} else {',
'						removeClass(this.spanInMainDiv, "currentmatch");',
'					}',
'				},',
'',
'				isOrphan: function() {',
'					return isOrphan(this.mainSpan);',
'				},',
'',
'				isVisible: function() {',
'					return getCheckBox(this.logEntryLevel).checked;',
'				},',
'',
'				remove: function() {',
'					if (isIe) {',
'						this.spanInUnwrappedPre = null;',
'						this.spanInWrappedDiv = null;',
'					} else {',
'						this.spanInMainDiv = null;',
'					}',
'				}',
'			};',
'',
'			var currentSearch = null;',
'			var currentMatchIndex = null;',
'',
'			function doSearch() {',
'				var searchBox = $("searchBox");',
'				var searchTerm = searchBox.value;',
'				var isRegex = $("searchRegex").checked;',
'				var isCaseSensitive = $("searchCaseSensitive").checked;',
'				var i;',
'',
'				if (searchTerm === "") {',
'					$("searchReset").disabled = true;',
'					$("searchNav").style.display = "none";',
'					removeClass(document.body, "searching");',
'					removeClass(searchBox, "hasmatches");',
'					removeClass(searchBox, "nomatches");',
'					for (i = 0; i < logEntries.length; i++) {',
'						logEntries[i].clearSearch();',
'						logEntries[i].setContent(logEntries[i].formattedMessage, logEntries[i].formattedMessage);',
'					}',
'					currentSearch = null;',
'					setLogContainerHeight();',
'				} else {',
'					$("searchReset").disabled = false;',
'					$("searchNav").style.display = "block";',
'					var searchRegex;',
'					var regexValid;',
'					if (isRegex) {',
'						try {',
'							searchRegex = isCaseSensitive ? new RegExp(searchTerm, "g") : new RegExp(searchTerm, "gi");',
'							regexValid = true;',
'							replaceClass(searchBox, "validregex", "invalidregex");',
'							searchBox.title = "Valid regex";',
'						} catch (ex) {',
'							regexValid = false;',
'							replaceClass(searchBox, "invalidregex", "validregex");',
'							searchBox.title = "Invalid regex: " + (ex.message ? ex.message : (ex.description ? ex.description : "unknown error"));',
'							return;',
'						}',
'					} else {',
'						searchBox.title = "";',
'						removeClass(searchBox, "validregex");',
'						removeClass(searchBox, "invalidregex");',
'					}',
'					addClass(document.body, "searching");',
'					currentSearch = new Search(searchTerm, isRegex, searchRegex, isCaseSensitive);',
'					for (i = 0; i < logEntries.length; i++) {',
'						currentSearch.applyTo(logEntries[i]);',
'					}',
'					setLogContainerHeight();',
'',
'					// Highlight the first search match',
'					if (currentSearch.hasVisibleMatches()) {',
'						setCurrentMatchIndex(0);',
'						displayMatches();',
'					} else {',
'						displayNoMatches();',
'					}',
'				}',
'			}',
'',
'			function updateSearchFromFilters() {',
'				if (currentSearch) {',
'					if (currentSearch.hasMatches()) {',
'						if (currentMatchIndex === null) {',
'							currentMatchIndex = 0;',
'						}',
'						var currentMatch = currentSearch.matches[currentMatchIndex];',
'						if (currentMatch.isVisible()) {',
'							displayMatches();',
'							setCurrentMatchIndex(currentMatchIndex);',
'						} else {',
'							currentMatch.setNotCurrent();',
'							// Find the next visible match, if one exists',
'							var nextVisibleMatchIndex = currentSearch.getNextVisibleMatchIndex();',
'							if (nextVisibleMatchIndex > -1) {',
'								setCurrentMatchIndex(nextVisibleMatchIndex);',
'								displayMatches();',
'							} else {',
'								displayNoMatches();',
'							}',
'						}',
'					} else {',
'						displayNoMatches();',
'					}',
'				}',
'			}',
'',
'			function refreshCurrentMatch() {',
'				if (currentSearch && currentSearch.hasVisibleMatches()) {',
'					setCurrentMatchIndex(currentMatchIndex);',
'				}',
'			}',
'',
'			function displayMatches() {',
'				replaceClass($("searchBox"), "hasmatches", "nomatches");',
'				$("searchBox").title = "" + currentSearch.matches.length + " matches found";',
'				$("searchNav").style.display = "block";',
'				setLogContainerHeight();',
'			}',
'',
'			function displayNoMatches() {',
'				replaceClass($("searchBox"), "nomatches", "hasmatches");',
'				$("searchBox").title = "No matches found";',
'				$("searchNav").style.display = "none";',
'				setLogContainerHeight();',
'			}',
'',
'			function toggleSearchEnabled(enable) {',
'				enable = (typeof enable == "undefined") ? !$("searchDisable").checked : enable;',
'				$("searchBox").disabled = !enable;',
'				$("searchReset").disabled = !enable;',
'				$("searchRegex").disabled = !enable;',
'				$("searchNext").disabled = !enable;',
'				$("searchPrevious").disabled = !enable;',
'				$("searchCaseSensitive").disabled = !enable;',
'				$("searchNav").style.display = (enable && ($("searchBox").value !== "") &&',
'						currentSearch && currentSearch.hasVisibleMatches()) ?',
'					"block" : "none";',
'				if (enable) {',
'					removeClass($("search"), "greyedout");',
'					addClass(document.body, "searching");',
'					if ($("searchHighlight").checked) {',
'						addClass(logMainContainer, "searchhighlight");',
'					} else {',
'						removeClass(logMainContainer, "searchhighlight");',
'					}',
'					if ($("searchFilter").checked) {',
'						addClass(logMainContainer, "searchfilter");',
'					} else {',
'						removeClass(logMainContainer, "searchfilter");',
'					}',
'					$("searchDisable").checked = !enable;',
'				} else {',
'					addClass($("search"), "greyedout");',
'					removeClass(document.body, "searching");',
'					removeClass(logMainContainer, "searchhighlight");',
'					removeClass(logMainContainer, "searchfilter");',
'				}',
'				setLogContainerHeight();',
'			}',
'',
'			function toggleSearchFilter() {',
'				var enable = $("searchFilter").checked;',
'				if (enable) {',
'					addClass(logMainContainer, "searchfilter");',
'				} else {',
'					removeClass(logMainContainer, "searchfilter");',
'				}',
'				refreshCurrentMatch();',
'			}',
'',
'			function toggleSearchHighlight() {',
'				var enable = $("searchHighlight").checked;',
'				if (enable) {',
'					addClass(logMainContainer, "searchhighlight");',
'				} else {',
'					removeClass(logMainContainer, "searchhighlight");',
'				}',
'			}',
'',
'			function clearSearch() {',
'				$("searchBox").value = "";',
'				doSearch();',
'			}',
'',
'			function searchNext() {',
'				if (currentSearch !== null && currentMatchIndex !== null) {',
'					currentSearch.matches[currentMatchIndex].setNotCurrent();',
'					var nextMatchIndex = currentSearch.getNextVisibleMatchIndex();',
'					if (nextMatchIndex > currentMatchIndex || confirm("Reached the end of the page. Start from the top?")) {',
'						setCurrentMatchIndex(nextMatchIndex);',
'					}',
'				}',
'			}',
'',
'			function searchPrevious() {',
'				if (currentSearch !== null && currentMatchIndex !== null) {',
'					currentSearch.matches[currentMatchIndex].setNotCurrent();',
'					var previousMatchIndex = currentSearch.getPreviousVisibleMatchIndex();',
'					if (previousMatchIndex < currentMatchIndex || confirm("Reached the start of the page. Continue from the bottom?")) {',
'						setCurrentMatchIndex(previousMatchIndex);',
'					}',
'				}',
'			}',
'',
'			function setCurrentMatchIndex(index) {',
'				currentMatchIndex = index;',
'				currentSearch.matches[currentMatchIndex].setCurrent();',
'			}',
'',
'			/* ------------------------------------------------------------------------- */',
'',
'			// CSS Utilities',
'',
'			function addClass(el, cssClass) {',
'				if (!hasClass(el, cssClass)) {',
'					if (el.className) {',
'						el.className += " " + cssClass;',
'					} else {',
'						el.className = cssClass;',
'					}',
'				}',
'			}',
'',
'			function hasClass(el, cssClass) {',
'				if (el.className) {',
'					var classNames = el.className.split(" ");',
'					return array_contains(classNames, cssClass);',
'				}',
'				return false;',
'			}',
'',
'			function removeClass(el, cssClass) {',
'				if (hasClass(el, cssClass)) {',
'					// Rebuild the className property',
'					var existingClasses = el.className.split(" ");',
'					var newClasses = [];',
'					for (var i = 0, len = existingClasses.length; i < len; i++) {',
'						if (existingClasses[i] != cssClass) {',
'							newClasses[newClasses.length] = existingClasses[i];',
'						}',
'					}',
'					el.className = newClasses.join(" ");',
'				}',
'			}',
'',
'			function replaceClass(el, newCssClass, oldCssClass) {',
'				removeClass(el, oldCssClass);',
'				addClass(el, newCssClass);',
'			}',
'',
'			/* ------------------------------------------------------------------------- */',
'',
'			// Other utility functions',
'',
'			function getElementsByClass(el, cssClass, tagName) {',
'				var elements = el.getElementsByTagName(tagName);',
'				var matches = [];',
'				for (var i = 0, len = elements.length; i < len; i++) {',
'					if (hasClass(elements[i], cssClass)) {',
'						matches.push(elements[i]);',
'					}',
'				}',
'				return matches;',
'			}',
'',
'			// Syntax borrowed from Prototype library',
'			function $(id) {',
'				return document.getElementById(id);',
'			}',
'',
'			function isDescendant(node, ancestorNode) {',
'				while (node != null) {',
'					if (node === ancestorNode) {',
'						return true;',
'					}',
'					node = node.parentNode;',
'				}',
'				return false;',
'			}',
'',
'			function isOrphan(node) {',
'				var currentNode = node;',
'				while (currentNode) {',
'					if (currentNode == document.body) {',
'						return false;',
'					}',
'					currentNode = currentNode.parentNode;',
'				}',
'				return true;',
'			}',
'',
'			function escapeHtml(str) {',
'				return str.replace(/&/g, "&amp;").replace(/[<]/g, "&lt;").replace(/>/g, "&gt;");',
'			}',
'',
'			function getWindowWidth() {',
'				if (window.innerWidth) {',
'					return window.innerWidth;',
'				} else if (document.documentElement && document.documentElement.clientWidth) {',
'					return document.documentElement.clientWidth;',
'				} else if (document.body) {',
'					return document.body.clientWidth;',
'				}',
'				return 0;',
'			}',
'',
'			function getWindowHeight() {',
'				if (window.innerHeight) {',
'					return window.innerHeight;',
'				} else if (document.documentElement && document.documentElement.clientHeight) {',
'					return document.documentElement.clientHeight;',
'				} else if (document.body) {',
'					return document.body.clientHeight;',
'				}',
'				return 0;',
'			}',
'',
'			function getToolBarsHeight() {',
'				return $("switches").offsetHeight;',
'			}',
'',
'			function getChromeHeight() {',
'				var height = getToolBarsHeight();',
'				if (showCommandLine) {',
'					height += $("commandLine").offsetHeight;',
'				}',
'				return height;',
'			}',
'',
'			function setLogContainerHeight() {',
'				if (logMainContainer) {',
'					var windowHeight = getWindowHeight();',
'					$("body").style.height = getWindowHeight() + "px";',
'					logMainContainer.style.height = "" +',
'						Math.max(0, windowHeight - getChromeHeight()) + "px";',
'				}',
'			}',
'',
'			function setCommandInputWidth() {',
'				if (showCommandLine) {',
'					$("command").style.width = "" + Math.max(0, $("commandLineContainer").offsetWidth -',
'						($("evaluateButton").offsetWidth + 13)) + "px";',
'				}',
'			}',
'',
'			window.onresize = function() {',
'				setCommandInputWidth();',
'				setLogContainerHeight();',
'			};',
'',
'			if (!Array.prototype.push) {',
'				Array.prototype.push = function() {',
'			        for (var i = 0, len = arguments.length; i < len; i++){',
'			            this[this.length] = arguments[i];',
'			        }',
'			        return this.length;',
'				};',
'			}',
'',
'			if (!Array.prototype.pop) {',
'				Array.prototype.pop = function() {',
'					if (this.length > 0) {',
'						var val = this[this.length - 1];',
'						this.length = this.length - 1;',
'						return val;',
'					}',
'				};',
'			}',
'',
'			if (!Array.prototype.shift) {',
'				Array.prototype.shift = function() {',
'					if (this.length > 0) {',
'						var firstItem = this[0];',
'						for (var i = 0, len = this.length - 1; i < len; i++) {',
'							this[i] = this[i + 1];',
'						}',
'						this.length = this.length - 1;',
'						return firstItem;',
'					}',
'				};',
'			}',
'',
'			if (!Array.prototype.splice) {',
'				Array.prototype.splice = function(startIndex, deleteCount) {',
'					var itemsAfterDeleted = this.slice(startIndex + deleteCount);',
'					var itemsDeleted = this.slice(startIndex, startIndex + deleteCount);',
'					this.length = startIndex;',
'					// Copy the arguments into a proper Array object',
'					var argumentsArray = [];',
'					for (var i = 0, len = arguments.length; i < len; i++) {',
'						argumentsArray[i] = arguments[i];',
'					}',
'					var itemsToAppend = (argumentsArray.length > 2) ?',
'						itemsAfterDeleted = argumentsArray.slice(2).concat(itemsAfterDeleted) : itemsAfterDeleted;',
'					for (i = 0, len = itemsToAppend.length; i < len; i++) {',
'						this.push(itemsToAppend[i]);',
'					}',
'					return itemsDeleted;',
'				};',
'			}',
'',
'			function array_remove(arr, val) {',
'				var index = -1;',
'				for (var i = 0, len = arr.length; i < len; i++) {',
'					if (arr[i] === val) {',
'						index = i;',
'						break;',
'					}',
'				}',
'				if (index >= 0) {',
'					arr.splice(index, 1);',
'					return index;',
'				} else {',
'					return false;',
'				}',
'			}',
'',
'			function array_removeFromStart(array, numberToRemove) {',
'				if (Array.prototype.splice) {',
'					array.splice(0, numberToRemove);',
'				} else {',
'					for (var i = numberToRemove, len = array.length; i < len; i++) {',
'						array[i - numberToRemove] = array[i];',
'					}',
'					array.length = array.length - numberToRemove;',
'				}',
'				return array;',
'			}',
'',
'			function array_contains(arr, val) {',
'				for (var i = 0, len = arr.length; i < len; i++) {',
'					if (arr[i] == val) {',
'						return true;',
'					}',
'				}',
'				return false;',
'			}',
'',
'			function getErrorMessage(ex) {',
'				if (ex.message) {',
'					return ex.message;',
'				} else if (ex.description) {',
'					return ex.description;',
'				}',
'				return "" + ex;',
'			}',
'',
'			function moveCaretToEnd(input) {',
'				if (input.setSelectionRange) {',
'					input.focus();',
'					var length = input.value.length;',
'					input.setSelectionRange(length, length);',
'				} else if (input.createTextRange) {',
'					var range = input.createTextRange();',
'					range.collapse(false);',
'					range.select();',
'				}',
'				input.focus();',
'			}',
'',
'			function stopPropagation(evt) {',
'				if (evt.stopPropagation) {',
'					evt.stopPropagation();',
'				} else if (typeof evt.cancelBubble != "undefined") {',
'					evt.cancelBubble = true;',
'				}',
'			}',
'',
'			function getEvent(evt) {',
'				return evt ? evt : event;',
'			}',
'',
'			function getTarget(evt) {',
'				return evt.target ? evt.target : evt.srcElement;',
'			}',
'',
'			function getRelatedTarget(evt) {',
'				if (evt.relatedTarget) {',
'					return evt.relatedTarget;',
'				} else if (evt.srcElement) {',
'					switch(evt.type) {',
'						case "mouseover":',
'							return evt.fromElement;',
'						case "mouseout":',
'							return evt.toElement;',
'						default:',
'							return evt.srcElement;',
'					}',
'				}',
'			}',
'',
'			function cancelKeyEvent(evt) {',
'				evt.returnValue = false;',
'				stopPropagation(evt);',
'			}',
'',
'			function evalCommandLine() {',
'				var expr = $("command").value;',
'				evalCommand(expr);',
'				$("command").value = "";',
'			}',
'',
'			function evalLastCommand() {',
'				if (lastCommand != null) {',
'					evalCommand(lastCommand);',
'				}',
'			}',
'',
'			var lastCommand = null;',
'			var commandHistory = [];',
'			var currentCommandIndex = 0;',
'',
'			function evalCommand(expr) {',
'				if (appender) {',
'					appender.evalCommandAndAppend(expr);',
'				} else {',
'					var prefix = ">>> " + expr + "\\r\\n";',
'					try {',
'						log("INFO", prefix + eval(expr));',
'					} catch (ex) {',
'						log("ERROR", prefix + "Error: " + getErrorMessage(ex));',
'					}',
'				}',
'				// Update command history',
'				if (expr != commandHistory[commandHistory.length - 1]) {',
'					commandHistory.push(expr);',
'					// Update the appender',
'					if (appender) {',
'						appender.storeCommandHistory(commandHistory);',
'					}',
'				}',
'				currentCommandIndex = (expr == commandHistory[currentCommandIndex]) ? currentCommandIndex + 1 : commandHistory.length;',
'				lastCommand = expr;',
'			}',
'			//]]>',
'		</script>',
'		<style type="text/css">',
'			body {',
'				background-color: white;',
'				color: black;',
'				padding: 0;',
'				margin: 0;',
'				font-family: tahoma, verdana, arial, helvetica, sans-serif;',
'				overflow: hidden;',
'				-webkit-touch-callout: none;',
'				-webkit-user-select: none;',
'				-khtml-user-select: none;',
'				-moz-user-select: none;',
'				-ms-user-select: none;',
'				user-select: none;',
'			}',
'',
'			div#switchesContainer input {',
'				margin-bottom: 0;',
'			}',
'',
'			div.toolbar {',
'				border-top: solid #ffffff 1px;',
'				border-bottom: solid #aca899 1px;',
'				background-color: #f1efe7;',
'				padding: 3px 5px;',
'				font-size: 68.75%;',
'			}',
'',
'			div.toolbar, div#search input {',
'				font-family: tahoma, verdana, arial, helvetica, sans-serif;',
'			}',
'',
'			div.toolbar input.button {',
'				padding: 0 5px;',
'				font-size: 100%;',
'			}',
'',
'			div.toolbar input.hidden {',
'				display: none;',
'			}',
'',
'			div#switches input#clearButton {',
'				margin-left: 20px;',
'			}',
'',
'			div#levels label {',
'				font-weight: bold;',
'			}',
'',
'			div#levels label, div#options label {',
'				margin-right: 5px;',
'			}',
'',
'			div#levels label#wrapLabel {',
'				font-weight: normal;',
'			}',
'',
'			div#search label {',
'				margin-right: 10px;',
'			}',
'',
'			div#search label.searchboxlabel {',
'				margin-right: 0;',
'			}',
'',
'			div#search input {',
'				font-size: 100%;',
'			}',
'',
'			div#search input.validregex {',
'				color: green;',
'			}',
'',
'			div#search input.invalidregex {',
'				color: red;',
'			}',
'',
'			div#search input.nomatches {',
'				color: white;',
'				background-color: #ff6666;',
'			}',
'',
'			div#search input.nomatches {',
'				color: white;',
'				background-color: #ff6666;',
'			}',
'',
'			div#searchNav {',
'				display: none;',
'			}',
'',
'			div#commandLine {',
'				display: none;',
'			}',
'',
'			div#commandLine input#command {',
'				font-size: 100%;',
'				font-family: Courier New, Courier;',
'			}',
'',
'			div#commandLine input#evaluateButton {',
'			}',
'',
'			*.greyedout {',
'				color: gray !important;',
'				border-color: gray !important;',
'			}',
'',
'			*.greyedout *.alwaysenabled { color: black; }',
'',
'			*.unselectable {',
'				-khtml-user-select: none;',
'				-moz-user-select: none;',
'				user-select: none;',
'			}',
'',
'			div#log {',
'				font-family: Courier New, Courier;',
'				font-size: 75%;',
'				width: 100%;',
'				overflow: auto;',
'				clear: both;',
'				position: relative;',
'				-webkit-touch-callout: text;',
'				-webkit-user-select: text;',
'				-khtml-user-select: text;',
'				-moz-user-select: text;',
'				-ms-user-select: text;',
'				user-select: text;',
'			}',
'',
'			div.group {',
'				border-color: #cccccc;',
'				border-style: solid;',
'				border-width: 1px 0 1px 1px;',
'				overflow: visible;',
'			}',
'',
'			div.oldIe div.group, div.oldIe div.group *, div.oldIe *.logentry {',
'				height: 1%;',
'			}',
'',
'			div.group div.groupheading span.expander {',
'				border: solid black 1px;',
'				font-family: Courier New, Courier;',
'				font-size: 0.833em;',
'				background-color: #eeeeee;',
'				position: relative;',
'				top: -1px;',
'				color: black;',
'				padding: 0 2px;',
'				cursor: pointer;',
'				cursor: hand;',
'				height: 1%;',
'			}',
'',
'			div.group div.groupcontent {',
'				margin-left: 10px;',
'				padding-bottom: 2px;',
'				overflow: visible;',
'			}',
'',
'			div.group div.expanded {',
'				display: block;',
'			}',
'',
'			div.group div.collapsed {',
'				display: none;',
'			}',
'',
'			*.logentry {',
'				overflow: visible;',
'				display: none;',
'				white-space: pre;',
'			}',
'',
'			span.pre {',
'				white-space: pre;',
'			}',
'			',
'			pre.unwrapped {',
'				display: inline !important;',
'			}',
'',
'			pre.unwrapped pre.pre, div.wrapped pre.pre {',
'				display: inline;',
'			}',
'',
'			div.wrapped pre.pre {',
'				white-space: normal;',
'			}',
'',
'			div.wrapped {',
'				display: none;',
'			}',
'',
'			body.searching *.logentry span.currentmatch {',
'				color: white !important;',
'				background-color: green !important;',
'			}',
'',
'			body.searching div.searchhighlight *.logentry span.searchterm {',
'				color: black;',
'				background-color: yellow;',
'			}',
'',
'			div.wrap *.logentry {',
'				white-space: normal !important;',
'				border-width: 0 0 1px 0;',
'				border-color: #dddddd;',
'				border-style: dotted;',
'			}',
'',
'			div.wrap #log_wrapped, #log_unwrapped {',
'				display: block;',
'			}',
'',
'			div.wrap #log_unwrapped, #log_wrapped {',
'				display: none;',
'			}',
'',
'			div.wrap *.logentry span.pre {',
'				overflow: visible;',
'				white-space: normal;',
'			}',
'',
'			div.wrap *.logentry pre.unwrapped {',
'				display: none;',
'			}',
'',
'			div.wrap *.logentry span.wrapped {',
'				display: inline;',
'			}',
'',
'			div.searchfilter *.searchnonmatch {',
'				display: none !important;',
'			}',
'',
'			div#log *.TRACE, label#label_TRACE {',
'				color: #666666;',
'			}',
'',
'			div#log *.DEBUG, label#label_DEBUG {',
'				color: green;',
'			}',
'',
'			div#log *.INFO, label#label_INFO {',
'				color: #000099;',
'			}',
'',
'			div#log *.WARN, label#label_WARN {',
'				color: #999900;',
'			}',
'',
'			div#log *.ERROR, label#label_ERROR {',
'				color: red;',
'			}',
'',
'			div#log *.FATAL, label#label_FATAL {',
'				color: #660066;',
'			}',
'',
'			div.TRACE#log *.TRACE,',
'			div.DEBUG#log *.DEBUG,',
'			div.INFO#log *.INFO,',
'			div.WARN#log *.WARN,',
'			div.ERROR#log *.ERROR,',
'			div.FATAL#log *.FATAL {',
'				display: block;',
'			}',
'',
'			div#log div.separator {',
'				background-color: #cccccc;',
'				margin: 5px 0;',
'				line-height: 1px;',
'			}',
'		</style>',
'	</head>',
'',
'	<body id="body">',
'		<div id="switchesContainer">',
'			<div id="switches">',
'				<div id="levels" class="toolbar">',
'					Filters:',
'					<input type="checkbox" id="switch_TRACE" onclick="applyFilters(); checkAllLevels()" checked="checked" title="Show/hide trace messages" /><label for="switch_TRACE" id="label_TRACE">trace</label>',
'					<input type="checkbox" id="switch_DEBUG" onclick="applyFilters(); checkAllLevels()" checked="checked" title="Show/hide debug messages" /><label for="switch_DEBUG" id="label_DEBUG">debug</label>',
'					<input type="checkbox" id="switch_INFO" onclick="applyFilters(); checkAllLevels()" checked="checked" title="Show/hide info messages" /><label for="switch_INFO" id="label_INFO">info</label>',
'					<input type="checkbox" id="switch_WARN" onclick="applyFilters(); checkAllLevels()" checked="checked" title="Show/hide warn messages" /><label for="switch_WARN" id="label_WARN">warn</label>',
'					<input type="checkbox" id="switch_ERROR" onclick="applyFilters(); checkAllLevels()" checked="checked" title="Show/hide error messages" /><label for="switch_ERROR" id="label_ERROR">error</label>',
'					<input type="checkbox" id="switch_FATAL" onclick="applyFilters(); checkAllLevels()" checked="checked" title="Show/hide fatal messages" /><label for="switch_FATAL" id="label_FATAL">fatal</label>',
'					<input type="checkbox" id="switch_ALL" onclick="toggleAllLevels(); applyFilters()" checked="checked" title="Show/hide all messages" /><label for="switch_ALL" id="label_ALL">all</label>',
'				</div>',
'				<div id="search" class="toolbar">',
'					<label for="searchBox" class="searchboxlabel">Search:</label> <input type="text" id="searchBox" onclick="toggleSearchEnabled(true)" onkeyup="scheduleSearch()" size="20" />',
'					<input type="button" id="searchReset" disabled="disabled" value="Reset" onclick="clearSearch()" class="button" title="Reset the search" />',
'					<input type="checkbox" id="searchRegex" onclick="doSearch()" title="If checked, search is treated as a regular expression" /><label for="searchRegex">Regex</label>',
'					<input type="checkbox" id="searchCaseSensitive" onclick="doSearch()" title="If checked, search is case sensitive" /><label for="searchCaseSensitive">Match case</label>',
'					<input type="checkbox" id="searchDisable" onclick="toggleSearchEnabled()" title="Enable/disable search" /><label for="searchDisable" class="alwaysenabled">Disable</label>',
'					<div id="searchNav">',
'						<input type="button" id="searchNext" disabled="disabled" value="Next" onclick="searchNext()" class="button" title="Go to the next matching log entry" />',
'						<input type="button" id="searchPrevious" disabled="disabled" value="Previous" onclick="searchPrevious()" class="button" title="Go to the previous matching log entry" />',
'						<input type="checkbox" id="searchFilter" onclick="toggleSearchFilter()" title="If checked, non-matching log entries are filtered out" /><label for="searchFilter">Filter</label>',
'						<input type="checkbox" id="searchHighlight" onclick="toggleSearchHighlight()" title="Highlight matched search terms" /><label for="searchHighlight" class="alwaysenabled">Highlight all</label>',
'					</div>',
'				</div>',
'				<div id="options" class="toolbar">',
'					Options:',
'					<input type="checkbox" id="enableLogging" onclick="toggleLoggingEnabled()" checked="checked" title="Enable/disable logging" /><label for="enableLogging" id="enableLoggingLabel">Log</label>',
'					<input type="checkbox" id="wrap" onclick="toggleWrap()" title="Enable / disable word wrap" /><label for="wrap" id="wrapLabel">Wrap</label>',
'					<input type="checkbox" id="newestAtTop" onclick="toggleNewestAtTop()" title="If checked, causes newest messages to appear at the top" /><label for="newestAtTop" id="newestAtTopLabel">Newest at the top</label>',
'					<input type="checkbox" id="scrollToLatest" onclick="toggleScrollToLatest()" checked="checked" title="If checked, window automatically scrolls to a new message when it is added" /><label for="scrollToLatest" id="scrollToLatestLabel">Scroll to latest</label>',
'					<input type="button" id="clearButton" value="Clear" onclick="clearLog()" class="button" title="Clear all log messages"  />',
'					<input type="button" id="hideButton" value="Hide" onclick="hide()" class="hidden button" title="Hide the console" />',
'					<input type="button" id="closeButton" value="Close" onclick="closeWindow()" class="hidden button" title="Close the window" />',
'				</div>',
'			</div>',
'		</div>',
'		<div id="log" class="TRACE DEBUG INFO WARN ERROR FATAL"></div>',
'		<div id="commandLine" class="toolbar">',
'			<div id="commandLineContainer">',
'				<input type="text" id="command" title="Enter a JavaScript command here and hit return or press \'Evaluate\'" />',
'				<input type="button" id="evaluateButton" value="Evaluate" class="button" title="Evaluate the command" onclick="evalCommandLine()" />',
'			</div>',
'		</div>',
'	</body>',
'</html>',
''
];
		};
 
		var defaultCommandLineFunctions = [];
 
		ConsoleAppender = function() {};
 
		var consoleAppenderIdCounter = 1;
		ConsoleAppender.prototype = new Appender();
 
		ConsoleAppender.prototype.create = function(inPage, container,
				lazyInit, initiallyMinimized, useDocumentWrite, width, height, focusConsoleWindow) {
			var appender = this;
 
			// Common properties
			var initialized = false;
			var consoleWindowCreated = false;
			var consoleWindowLoaded = false;
			var consoleClosed = false;
 
			var queuedLoggingEvents = [];
			var isSupported = true;
			var consoleAppenderId = consoleAppenderIdCounter++;
 
			// Local variables
			initiallyMinimized = extractBooleanFromParam(initiallyMinimized, this.defaults.initiallyMinimized);
			lazyInit = extractBooleanFromParam(lazyInit, this.defaults.lazyInit);
			useDocumentWrite = extractBooleanFromParam(useDocumentWrite, this.defaults.useDocumentWrite);
			var newestMessageAtTop = this.defaults.newestMessageAtTop;
			var scrollToLatestMessage = this.defaults.scrollToLatestMessage;
			width = width ? width : this.defaults.width;
			height = height ? height : this.defaults.height;
			var maxMessages = this.defaults.maxMessages;
			var showCommandLine = this.defaults.showCommandLine;
			var commandLineObjectExpansionDepth = this.defaults.commandLineObjectExpansionDepth;
			var showHideButton = this.defaults.showHideButton;
			var showCloseButton = this.defaults.showCloseButton;
 
			this.setLayout(this.defaults.layout);
 
			// Functions whose implementations vary between subclasses
			var init, createWindow, safeToAppend, getConsoleWindow, open;
 
			// Configuration methods. The function scope is used to prevent
			// direct alteration to the appender configuration properties.
			var appenderName = inPage ? "InPageAppender" : "PopUpAppender";
			var checkCanConfigure = function(configOptionName) {
				if (consoleWindowCreated) {
					handleError(appenderName + ": configuration option '" + configOptionName + "' may not be set after the appender has been initialized");
					return false;
				}
				return true;
			};
 
			var consoleWindowExists = function() {
				return (consoleWindowLoaded && isSupported && !consoleClosed);
			};
 
			this.isNewestMessageAtTop = function() { return newestMessageAtTop; };
			this.setNewestMessageAtTop = function(newestMessageAtTopParam) {
				newestMessageAtTop = bool(newestMessageAtTopParam);
				if (consoleWindowExists()) {
					getConsoleWindow().setNewestAtTop(newestMessageAtTop);
				}
			};
 
			this.isScrollToLatestMessage = function() { return scrollToLatestMessage; };
			this.setScrollToLatestMessage = function(scrollToLatestMessageParam) {
				scrollToLatestMessage = bool(scrollToLatestMessageParam);
				if (consoleWindowExists()) {
					getConsoleWindow().setScrollToLatest(scrollToLatestMessage);
				}
			};
 
			this.getWidth = function() { return width; };
			this.setWidth = function(widthParam) {
				if (checkCanConfigure("width")) {
					width = extractStringFromParam(widthParam, width);
				}
			};
 
			this.getHeight = function() { return height; };
			this.setHeight = function(heightParam) {
				if (checkCanConfigure("height")) {
					height = extractStringFromParam(heightParam, height);
				}
			};
 
			this.getMaxMessages = function() { return maxMessages; };
			this.setMaxMessages = function(maxMessagesParam) {
				maxMessages = extractIntFromParam(maxMessagesParam, maxMessages);
				if (consoleWindowExists()) {
					getConsoleWindow().setMaxMessages(maxMessages);
				}
			};
 
			this.isShowCommandLine = function() { return showCommandLine; };
			this.setShowCommandLine = function(showCommandLineParam) {
				showCommandLine = bool(showCommandLineParam);
				if (consoleWindowExists()) {
					getConsoleWindow().setShowCommandLine(showCommandLine);
				}
			};
 
			this.isShowHideButton = function() { return showHideButton; };
			this.setShowHideButton = function(showHideButtonParam) {
				showHideButton = bool(showHideButtonParam);
				if (consoleWindowExists()) {
					getConsoleWindow().setShowHideButton(showHideButton);
				}
			};
 
			this.isShowCloseButton = function() { return showCloseButton; };
			this.setShowCloseButton = function(showCloseButtonParam) {
				showCloseButton = bool(showCloseButtonParam);
				if (consoleWindowExists()) {
					getConsoleWindow().setShowCloseButton(showCloseButton);
				}
			};
 
			this.getCommandLineObjectExpansionDepth = function() { return commandLineObjectExpansionDepth; };
			this.setCommandLineObjectExpansionDepth = function(commandLineObjectExpansionDepthParam) {
				commandLineObjectExpansionDepth = extractIntFromParam(commandLineObjectExpansionDepthParam, commandLineObjectExpansionDepth);
			};
 
			var minimized = initiallyMinimized;
			this.isInitiallyMinimized = function() { return initiallyMinimized; };
			this.setInitiallyMinimized = function(initiallyMinimizedParam) {
				if (checkCanConfigure("initiallyMinimized")) {
					initiallyMinimized = bool(initiallyMinimizedParam);
					minimized = initiallyMinimized;
				}
			};
 
			this.isUseDocumentWrite = function() { return useDocumentWrite; };
			this.setUseDocumentWrite = function(useDocumentWriteParam) {
				if (checkCanConfigure("useDocumentWrite")) {
					useDocumentWrite = bool(useDocumentWriteParam);
				}
			};
 
			// Common methods
			function QueuedLoggingEvent(loggingEvent, formattedMessage) {
				this.loggingEvent = loggingEvent;
				this.levelName = loggingEvent.level.name;
				this.formattedMessage = formattedMessage;
			}
 
			QueuedLoggingEvent.prototype.append = function() {
				getConsoleWindow().log(this.levelName, this.formattedMessage);
			};
 
			function QueuedGroup(name, initiallyExpanded) {
				this.name = name;
				this.initiallyExpanded = initiallyExpanded;
			}
 
			QueuedGroup.prototype.append = function() {
				getConsoleWindow().group(this.name, this.initiallyExpanded);
			};
 
			function QueuedGroupEnd() {}
 
			QueuedGroupEnd.prototype.append = function() {
				getConsoleWindow().groupEnd();
			};
 
			var checkAndAppend = function() {
				// Next line forces a check of whether the window has been closed
				safeToAppend();
				if (!initialized) {
					init();
				} else if (consoleClosed && reopenWhenClosed) {
					createWindow();
				}
				if (safeToAppend()) {
					appendQueuedLoggingEvents();
				}
			};
 
			this.append = function(loggingEvent) {
				if (isSupported) {
					// Format the message
					var formattedMessage = appender.getLayout().formatWithException(loggingEvent);
					queuedLoggingEvents.push(new QueuedLoggingEvent(loggingEvent, formattedMessage));
					checkAndAppend();
				}
			};
 
			this.group = function(name, initiallyExpanded) {
				if (isSupported) {
					queuedLoggingEvents.push(new QueuedGroup(name, initiallyExpanded));
					checkAndAppend();
				}
			};
 
			this.groupEnd = function() {
				if (isSupported) {
					queuedLoggingEvents.push(new QueuedGroupEnd());
					checkAndAppend();
				}
			};
 
			var appendQueuedLoggingEvents = function() {
				while (queuedLoggingEvents.length > 0) {
					queuedLoggingEvents.shift().append();
				}
				if (focusConsoleWindow) {
					getConsoleWindow().focus();
				}
			};
 
			this.setAddedToLogger = function(logger) {
				this.loggers.push(logger);
				if (enabled && !lazyInit) {
					init();
				}
			};
 
			this.clear = function() {
				if (consoleWindowExists()) {
					getConsoleWindow().clearLog();
				}
				queuedLoggingEvents.length = 0;
			};
 
			this.focus = function() {
				if (consoleWindowExists()) {
					getConsoleWindow().focus();
				}
			};
 
			this.focusCommandLine = function() {
				if (consoleWindowExists()) {
					getConsoleWindow().focusCommandLine();
				}
			};
 
			this.focusSearch = function() {
				if (consoleWindowExists()) {
					getConsoleWindow().focusSearch();
				}
			};
 
			var commandWindow = window;
 
			this.getCommandWindow = function() { return commandWindow; };
			this.setCommandWindow = function(commandWindowParam) {
				commandWindow = commandWindowParam;
			};
 
			this.executeLastCommand = function() {
				if (consoleWindowExists()) {
					getConsoleWindow().evalLastCommand();
				}
			};
 
			var commandLayout = new PatternLayout("%m");
			this.getCommandLayout = function() { return commandLayout; };
			this.setCommandLayout = function(commandLayoutParam) {
				commandLayout = commandLayoutParam;
			};
 
			this.evalCommandAndAppend = function(expr) {
				var commandReturnValue = { appendResult: true, isError: false };
				var commandOutput = "";
				// Evaluate the command
				try {
					var result, i;
					// The next three lines constitute a workaround for IE. Bizarrely, iframes seem to have no
					// eval method on the window object initially, but once execScript has been called on
					// it once then the eval method magically appears. See http://www.thismuchiknow.co.uk/?p=25
					if (!commandWindow.eval && commandWindow.execScript) {
						commandWindow.execScript("null");
					}
 
					var commandLineFunctionsHash = {};
					for (i = 0, len = commandLineFunctions.length; i < len; i++) {
						commandLineFunctionsHash[commandLineFunctions[i][0]] = commandLineFunctions[i][1];
					}
 
					// Keep an array of variables that are being changed in the command window so that they
					// can be restored to their original values afterwards
					var objectsToRestore = [];
					var addObjectToRestore = function(name) {
						objectsToRestore.push([name, commandWindow[name]]);
					};
 
					addObjectToRestore("appender");
					commandWindow.appender = appender;
 
					addObjectToRestore("commandReturnValue");
					commandWindow.commandReturnValue = commandReturnValue;
 
					addObjectToRestore("commandLineFunctionsHash");
					commandWindow.commandLineFunctionsHash = commandLineFunctionsHash;
 
					var addFunctionToWindow = function(name) {
						addObjectToRestore(name);
						commandWindow[name] = function() {
							return this.commandLineFunctionsHash[name](appender, arguments, commandReturnValue);
						};
					};
 
					for (i = 0, len = commandLineFunctions.length; i < len; i++) {
						addFunctionToWindow(commandLineFunctions[i][0]);
					}
 
					// Another bizarre workaround to get IE to eval in the global scope
					if (commandWindow === window && commandWindow.execScript) {
						addObjectToRestore("evalExpr");
						addObjectToRestore("result");
						window.evalExpr = expr;
						commandWindow.execScript("window.result=eval(window.evalExpr);");
						result = window.result;
					} else {
						result = commandWindow.eval(expr);
					}
					commandOutput = isUndefined(result) ? result : formatObjectExpansion(result, commandLineObjectExpansionDepth);
 
					// Restore variables in the command window to their original state
					for (i = 0, len = objectsToRestore.length; i < len; i++) {
						commandWindow[objectsToRestore[i][0]] = objectsToRestore[i][1];
					}
				} catch (ex) {
					commandOutput = "Error evaluating command: " + getExceptionStringRep(ex);
					commandReturnValue.isError = true;
				}
				// Append command output
				if (commandReturnValue.appendResult) {
					var message = ">>> " + expr;
					if (!isUndefined(commandOutput)) {
						message += newLine + commandOutput;
					}
					var level = commandReturnValue.isError ? Level.ERROR : Level.INFO;
					var loggingEvent = new LoggingEvent(null, new Date(), level, [message], null);
					var mainLayout = this.getLayout();
					this.setLayout(commandLayout);
					this.append(loggingEvent);
					this.setLayout(mainLayout);
				}
			};
 
			var commandLineFunctions = defaultCommandLineFunctions.concat([]);
 
			this.addCommandLineFunction = function(functionName, commandLineFunction) {
				commandLineFunctions.push([functionName, commandLineFunction]);
			};
 
			var commandHistoryCookieName = "log4javascriptCommandHistory";
			this.storeCommandHistory = function(commandHistory) {
				setCookie(commandHistoryCookieName, commandHistory.join(","));
			};
 
			var writeHtml = function(doc) {
				var lines = getConsoleHtmlLines();
				doc.open();
				for (var i = 0, len = lines.length; i < len; i++) {
					doc.writeln(lines[i]);
				}
				doc.close();
			};
 
			// Set up event listeners
			this.setEventTypes(["load", "unload"]);
 
			var consoleWindowLoadHandler = function() {
				var win = getConsoleWindow();
				win.setAppender(appender);
				win.setNewestAtTop(newestMessageAtTop);
				win.setScrollToLatest(scrollToLatestMessage);
				win.setMaxMessages(maxMessages);
				win.setShowCommandLine(showCommandLine);
				win.setShowHideButton(showHideButton);
				win.setShowCloseButton(showCloseButton);
				win.setMainWindow(window);
 
				// Restore command history stored in cookie
				var storedValue = getCookie(commandHistoryCookieName);
				if (storedValue) {
					win.commandHistory = storedValue.split(",");
					win.currentCommandIndex = win.commandHistory.length;
				}
 
				appender.dispatchEvent("load", { "win" : win });
			};
 
			this.unload = function() {
				logLog.debug("unload " + this + ", caller: " + this.unload.caller);
				if (!consoleClosed) {
					logLog.debug("really doing unload " + this);
					consoleClosed = true;
					consoleWindowLoaded = false;
					consoleWindowCreated = false;
					appender.dispatchEvent("unload", {});
				}
			};
 
			var pollConsoleWindow = function(windowTest, interval, successCallback, errorMessage) {
				function doPoll() {
					try {
						// Test if the console has been closed while polling
						if (consoleClosed) {
							clearInterval(poll);
						}
						if (windowTest(getConsoleWindow())) {
							clearInterval(poll);
							successCallback();
						}
					} catch (ex) {
						clearInterval(poll);
						isSupported = false;
						handleError(errorMessage, ex);
					}
				}
 
				// Poll the pop-up since the onload event is not reliable
				var poll = setInterval(doPoll, interval);
			};
 
			var getConsoleUrl = function() {
				var documentDomainSet = (document.domain != location.hostname);
				return useDocumentWrite ? "" : getBaseUrl() + "console_uncompressed.html" +
											   (documentDomainSet ? "?log4javascript_domain=" + escape(document.domain) : "");
			};
 
			// Define methods and properties that vary between subclasses
			if (inPage) {
				// InPageAppender
 
				var containerElement = null;
 
				// Configuration methods. The function scope is used to prevent
				// direct alteration to the appender configuration properties.
				var cssProperties = [];
				this.addCssProperty = function(name, value) {
					if (checkCanConfigure("cssProperties")) {
						cssProperties.push([name, value]);
					}
				};
 
				// Define useful variables
				var windowCreationStarted = false;
				var iframeContainerDiv;
				var iframeId = uniqueId + "_InPageAppender_" + consoleAppenderId;
 
				this.hide = function() {
					if (initialized && consoleWindowCreated) {
						if (consoleWindowExists()) {
							getConsoleWindow().$("command").blur();
						}
						iframeContainerDiv.style.display = "none";
						minimized = true;
					}
				};
 
				this.show = function() {
					if (initialized) {
						if (consoleWindowCreated) {
							iframeContainerDiv.style.display = "block";
							this.setShowCommandLine(showCommandLine); // Force IE to update
							minimized = false;
						} else if (!windowCreationStarted) {
							createWindow(true);
						}
					}
				};
 
				this.isVisible = function() {
					return !minimized && !consoleClosed;
				};
 
				this.close = function(fromButton) {
					if (!consoleClosed && (!fromButton || confirm("This will permanently remove the console from the page. No more messages will be logged. Do you wish to continue?"))) {
						iframeContainerDiv.parentNode.removeChild(iframeContainerDiv);
						this.unload();
					}
				};
 
				// Create open, init, getConsoleWindow and safeToAppend functions
				open = function() {
					var initErrorMessage = "InPageAppender.open: unable to create console iframe";
 
					function finalInit() {
						try {
							if (!initiallyMinimized) {
								appender.show();
							}
							consoleWindowLoadHandler();
							consoleWindowLoaded = true;
							appendQueuedLoggingEvents();
						} catch (ex) {
							isSupported = false;
							handleError(initErrorMessage, ex);
						}
					}
 
					function writeToDocument() {
						try {
							var windowTest = function(win) { return isLoaded(win); };
							if (useDocumentWrite) {
								writeHtml(getConsoleWindow().document);
							}
							if (windowTest(getConsoleWindow())) {
								finalInit();
							} else {
								pollConsoleWindow(windowTest, 100, finalInit, initErrorMessage);
							}
						} catch (ex) {
							isSupported = false;
							handleError(initErrorMessage, ex);
						}
					}
 
					minimized = false;
					iframeContainerDiv = containerElement.appendChild(document.createElement("div"));
 
					iframeContainerDiv.style.width = width;
					iframeContainerDiv.style.height = height;
					iframeContainerDiv.style.border = "solid gray 1px";
 
					for (var i = 0, len = cssProperties.length; i < len; i++) {
						iframeContainerDiv.style[cssProperties[i][0]] = cssProperties[i][1];
					}
 
					var iframeSrc = useDocumentWrite ? "" : " src='" + getConsoleUrl() + "'";
 
					// Adding an iframe using the DOM would be preferable, but it doesn't work
					// in IE5 on Windows, or in Konqueror prior to version 3.5 - in Konqueror
					// it creates the iframe fine but I haven't been able to find a way to obtain
					// the iframe's window object
					iframeContainerDiv.innerHTML = "<iframe id='" + iframeId + "' name='" + iframeId +
						"' width='100%' height='100%' frameborder='0'" + iframeSrc +
						" scrolling='no'></iframe>";
					consoleClosed = false;
 
					// Write the console HTML to the iframe
					var iframeDocumentExistsTest = function(win) {
						try {
							return bool(win) && bool(win.document);
						} catch (ex) {
							return false;
						}
					};
					if (iframeDocumentExistsTest(getConsoleWindow())) {
						writeToDocument();
					} else {
						pollConsoleWindow(iframeDocumentExistsTest, 100, writeToDocument, initErrorMessage);
					}
					consoleWindowCreated = true;
				};
 
				createWindow = function(show) {
					if (show || !initiallyMinimized) {
						var pageLoadHandler = function() {
							if (!container) {
								// Set up default container element
								containerElement = document.createElement("div");
								containerElement.style.position = "fixed";
								containerElement.style.left = "0";
								containerElement.style.right = "0";
								containerElement.style.bottom = "0";
								document.body.appendChild(containerElement);
								appender.addCssProperty("borderWidth", "1px 0 0 0");
								appender.addCssProperty("zIndex", 1000000); // Can't find anything authoritative that says how big z-index can be
								open();
							} else {
								try {
									var el = document.getElementById(container);
									if (el.nodeType == 1) {
										containerElement = el;
									}
									open();
								} catch (ex) {
									handleError("InPageAppender.init: invalid container element '" + container + "' supplied", ex);
								}
							}
						};
 
						// Test the type of the container supplied. First, check if it's an element
						if (pageLoaded && container && container.appendChild) {
							containerElement = container;
							open();
						} else if (pageLoaded) {
							pageLoadHandler();
						} else {
							log4javascript.addEventListener("load", pageLoadHandler);
						}
						windowCreationStarted = true;
					}
				};
 
				init = function() {
					createWindow();
					initialized = true;
				};
 
				getConsoleWindow = function() {
					var iframe = window.frames[iframeId];
					if (iframe) {
						return iframe;
					}
				};
 
				safeToAppend = function() {
					if (isSupported && !consoleClosed) {
						if (consoleWindowCreated && !consoleWindowLoaded && getConsoleWindow() && isLoaded(getConsoleWindow())) {
							consoleWindowLoaded = true;
						}
						return consoleWindowLoaded;
					}
					return false;
				};
			} else {
				// PopUpAppender
 
				// Extract params
				var useOldPopUp = appender.defaults.useOldPopUp;
				var complainAboutPopUpBlocking = appender.defaults.complainAboutPopUpBlocking;
				var reopenWhenClosed = this.defaults.reopenWhenClosed;
 
				// Configuration methods. The function scope is used to prevent
				// direct alteration to the appender configuration properties.
				this.isUseOldPopUp = function() { return useOldPopUp; };
				this.setUseOldPopUp = function(useOldPopUpParam) {
					if (checkCanConfigure("useOldPopUp")) {
						useOldPopUp = bool(useOldPopUpParam);
					}
				};
 
				this.isComplainAboutPopUpBlocking = function() { return complainAboutPopUpBlocking; };
				this.setComplainAboutPopUpBlocking = function(complainAboutPopUpBlockingParam) {
					if (checkCanConfigure("complainAboutPopUpBlocking")) {
						complainAboutPopUpBlocking = bool(complainAboutPopUpBlockingParam);
					}
				};
 
				this.isFocusPopUp = function() { return focusConsoleWindow; };
				this.setFocusPopUp = function(focusPopUpParam) {
					// This property can be safely altered after logging has started
					focusConsoleWindow = bool(focusPopUpParam);
				};
 
				this.isReopenWhenClosed = function() { return reopenWhenClosed; };
				this.setReopenWhenClosed = function(reopenWhenClosedParam) {
					// This property can be safely altered after logging has started
					reopenWhenClosed = bool(reopenWhenClosedParam);
				};
 
				this.close = function() {
					logLog.debug("close " + this);
					try {
						popUp.close();
						this.unload();
					} catch (ex) {
						// Do nothing
					}
				};
 
				this.hide = function() {
					logLog.debug("hide " + this);
					if (consoleWindowExists()) {
						this.close();
					}
				};
 
				this.show = function() {
					logLog.debug("show " + this);
					if (!consoleWindowCreated) {
						open();
					}
				};
 
				this.isVisible = function() {
					return safeToAppend();
				};
 
				// Define useful variables
				var popUp;
 
				// Create open, init, getConsoleWindow and safeToAppend functions
				open = function() {
					var windowProperties = "width=" + width + ",height=" + height + ",status,resizable";
					var frameInfo = "";
					try {
						var frameEl = window.frameElement;
						if (frameEl) {
							frameInfo = "_" + frameEl.tagName + "_" + (frameEl.name || frameEl.id || "");
						}
					} catch (e) {
						frameInfo = "_inaccessibleParentFrame";
					}
					var windowName = "PopUp_" + location.host.replace(/[^a-z0-9]/gi, "_") + "_" + consoleAppenderId + frameInfo;
					if (!useOldPopUp || !useDocumentWrite) {
						// Ensure a previous window isn't used by using a unique name
						windowName = windowName + "_" + uniqueId;
					}
 
					var checkPopUpClosed = function(win) {
						if (consoleClosed) {
							return true;
						} else {
							try {
								return bool(win) && win.closed;
							} catch(ex) {}
						}
						return false;
					};
 
					var popUpClosedCallback = function() {
						if (!consoleClosed) {
							appender.unload();
						}
					};
 
					function finalInit() {
						getConsoleWindow().setCloseIfOpenerCloses(!useOldPopUp || !useDocumentWrite);
						consoleWindowLoadHandler();
						consoleWindowLoaded = true;
						appendQueuedLoggingEvents();
						pollConsoleWindow(checkPopUpClosed, 500, popUpClosedCallback,
								"PopUpAppender.checkPopUpClosed: error checking pop-up window");
					}
 
					try {
						popUp = window.open(getConsoleUrl(), windowName, windowProperties);
						consoleClosed = false;
						consoleWindowCreated = true;
						if (popUp && popUp.document) {
							if (useDocumentWrite && useOldPopUp && isLoaded(popUp)) {
								popUp.mainPageReloaded();
								finalInit();
							} else {
								if (useDocumentWrite) {
									writeHtml(popUp.document);
								}
								// Check if the pop-up window object is available
								var popUpLoadedTest = function(win) { return bool(win) && isLoaded(win); };
								if (isLoaded(popUp)) {
									finalInit();
								} else {
									pollConsoleWindow(popUpLoadedTest, 100, finalInit,
											"PopUpAppender.init: unable to create console window");
								}
							}
						} else {
							isSupported = false;
							logLog.warn("PopUpAppender.init: pop-ups blocked, please unblock to use PopUpAppender");
							if (complainAboutPopUpBlocking) {
								handleError("log4javascript: pop-up windows appear to be blocked. Please unblock them to use pop-up logging.");
							}
						}
					} catch (ex) {
						handleError("PopUpAppender.init: error creating pop-up", ex);
					}
				};
 
				createWindow = function() {
					if (!initiallyMinimized) {
						open();
					}
				};
 
				init = function() {
					createWindow();
					initialized = true;
				};
 
				getConsoleWindow = function() {
					return popUp;
				};
 
				safeToAppend = function() {
					if (isSupported && !isUndefined(popUp) && !consoleClosed) {
						if (popUp.closed ||
								(consoleWindowLoaded && isUndefined(popUp.closed))) { // Extra check for Opera
							appender.unload();
							logLog.debug("PopUpAppender: pop-up closed");
							return false;
						}
						if (!consoleWindowLoaded && isLoaded(popUp)) {
							consoleWindowLoaded = true;
						}
					}
					return isSupported && consoleWindowLoaded && !consoleClosed;
				};
			}
 
			// Expose getConsoleWindow so that automated tests can check the DOM
			this.getConsoleWindow = getConsoleWindow;
		};
 
		ConsoleAppender.addGlobalCommandLineFunction = function(functionName, commandLineFunction) {
			defaultCommandLineFunctions.push([functionName, commandLineFunction]);
		};
 
		/* ------------------------------------------------------------------ */
 
		function PopUpAppender(lazyInit, initiallyMinimized, useDocumentWrite,
							   width, height) {
			this.create(false, null, lazyInit, initiallyMinimized,
					useDocumentWrite, width, height, this.defaults.focusPopUp);
		}
 
		PopUpAppender.prototype = new ConsoleAppender();
 
		PopUpAppender.prototype.defaults = {
			layout: new PatternLayout("%d{HH:mm:ss} %-5p - %m{1}%n"),
			initiallyMinimized: false,
			focusPopUp: false,
			lazyInit: true,
			useOldPopUp: true,
			complainAboutPopUpBlocking: true,
			newestMessageAtTop: false,
			scrollToLatestMessage: true,
			width: "600",
			height: "400",
			reopenWhenClosed: false,
			maxMessages: null,
			showCommandLine: true,
			commandLineObjectExpansionDepth: 1,
			showHideButton: false,
			showCloseButton: true,
			useDocumentWrite: true
		};
 
		PopUpAppender.prototype.toString = function() {
			return "PopUpAppender";
		};
 
		log4javascript.PopUpAppender = PopUpAppender;
 
		/* ------------------------------------------------------------------ */
 
		function InPageAppender(container, lazyInit, initiallyMinimized,
								useDocumentWrite, width, height) {
			this.create(true, container, lazyInit, initiallyMinimized,
					useDocumentWrite, width, height, false);
		}
 
		InPageAppender.prototype = new ConsoleAppender();
 
		InPageAppender.prototype.defaults = {
			layout: new PatternLayout("%d{HH:mm:ss} %-5p - %m{1}%n"),
			initiallyMinimized: false,
			lazyInit: true,
			newestMessageAtTop: false,
			scrollToLatestMessage: true,
			width: "100%",
			height: "220px",
			maxMessages: null,
			showCommandLine: true,
			commandLineObjectExpansionDepth: 1,
			showHideButton: false,
			showCloseButton: false,
			showLogEntryDeleteButtons: true,
			useDocumentWrite: true
		};
 
		InPageAppender.prototype.toString = function() {
			return "InPageAppender";
		};
 
		log4javascript.InPageAppender = InPageAppender;
 
		// Next line for backwards compatibility
		log4javascript.InlineAppender = InPageAppender;
	})();
	/* ---------------------------------------------------------------------- */
	// Console extension functions
 
	function padWithSpaces(str, len) {
		if (str.length < len) {
			var spaces = [];
			var numberOfSpaces = Math.max(0, len - str.length);
			for (var i = 0; i < numberOfSpaces; i++) {
				spaces[i] = " ";
			}
			str += spaces.join("");
		}
		return str;
	}
 
	(function() {
		function dir(obj) {
			var maxLen = 0;
			// Obtain the length of the longest property name
			for (var p in obj) {
				maxLen = Math.max(toStr(p).length, maxLen);
			}
			// Create the nicely formatted property list
			var propList = [];
			for (p in obj) {
				var propNameStr = "  " + padWithSpaces(toStr(p), maxLen + 2);
				var propVal;
				try {
					propVal = splitIntoLines(toStr(obj[p])).join(padWithSpaces(newLine, maxLen + 6));
				} catch (ex) {
					propVal = "[Error obtaining property. Details: " + getExceptionMessage(ex) + "]";
				}
				propList.push(propNameStr + propVal);
			}
			return propList.join(newLine);
		}
 
		var nodeTypes = {
			ELEMENT_NODE: 1,
			ATTRIBUTE_NODE: 2,
			TEXT_NODE: 3,
			CDATA_SECTION_NODE: 4,
			ENTITY_REFERENCE_NODE: 5,
			ENTITY_NODE: 6,
			PROCESSING_INSTRUCTION_NODE: 7,
			COMMENT_NODE: 8,
			DOCUMENT_NODE: 9,
			DOCUMENT_TYPE_NODE: 10,
			DOCUMENT_FRAGMENT_NODE: 11,
			NOTATION_NODE: 12
		};
 
		var preFormattedElements = ["script", "pre"];
 
		// This should be the definitive list, as specified by the XHTML 1.0 Transitional DTD
		var emptyElements = ["br", "img", "hr", "param", "link", "area", "input", "col", "base", "meta"];
		var indentationUnit = "  ";
 
		// Create and return an XHTML string from the node specified
		function getXhtml(rootNode, includeRootNode, indentation, startNewLine, preformatted) {
			includeRootNode = (typeof includeRootNode == "undefined") ? true : !!includeRootNode;
			if (typeof indentation != "string") {
				indentation = "";
			}
			startNewLine = !!startNewLine;
			preformatted = !!preformatted;
			var xhtml;
 
			function isWhitespace(node) {
				return ((node.nodeType == nodeTypes.TEXT_NODE) && /^[ \t\r\n]*$/.test(node.nodeValue));
			}
 
			function fixAttributeValue(attrValue) {
				return attrValue.toString().replace(/&/g, "&amp;").replace(/</g, "&lt;").replace(/"/g, "&quot;");
			}
 
			function getStyleAttributeValue(el) {
				var stylePairs = el.style.cssText.split(";");
				var styleValue = "";
				for (var j = 0, len = stylePairs.length; j < len; j++) {
					var nameValueBits = stylePairs[j].split(":");
					var props = [];
					if (!/^\s*$/.test(nameValueBits[0])) {
						props.push(trim(nameValueBits[0]).toLowerCase() + ":" + trim(nameValueBits[1]));
					}
					styleValue = props.join(";");
				}
				return styleValue;
			}
 
			function getNamespace(el) {
				if (el.prefix) {
					return el.prefix;
				} else if (el.outerHTML) {
					var regex = new RegExp("<([^:]+):" + el.tagName + "[^>]*>", "i");
					if (regex.test(el.outerHTML)) {
						return RegExp.$1.toLowerCase();
					}
				}
                return "";
			}
 
			var lt = "<";
			var gt = ">";
			var i, len;
 
			if (includeRootNode && rootNode.nodeType != nodeTypes.DOCUMENT_FRAGMENT_NODE) {
				switch (rootNode.nodeType) {
					case nodeTypes.ELEMENT_NODE:
						var tagName = rootNode.tagName.toLowerCase();
						xhtml = startNewLine ? newLine + indentation : "";
						xhtml += lt;
						// Allow for namespaces, where present
						var prefix = getNamespace(rootNode);
						var hasPrefix = !!prefix;
						if (hasPrefix) {
							xhtml += prefix + ":";
						}
						xhtml += tagName;
						for (i = 0, len = rootNode.attributes.length; i < len; i++) {
							var currentAttr = rootNode.attributes[i];
							// Check the attribute is valid.
							if (!	currentAttr.specified ||
									currentAttr.nodeValue === null ||
									currentAttr.nodeName.toLowerCase() === "style" ||
									typeof currentAttr.nodeValue !== "string" ||
									currentAttr.nodeName.indexOf("_moz") === 0) {
								continue;
							}
							xhtml += " " + currentAttr.nodeName.toLowerCase() + "=\"";
							xhtml += fixAttributeValue(currentAttr.nodeValue);
							xhtml += "\"";
						}
						// Style needs to be done separately as it is not reported as an
						// attribute in IE
						if (rootNode.style.cssText) {
							var styleValue = getStyleAttributeValue(rootNode);
							if (styleValue !== "") {
								xhtml += " style=\"" + getStyleAttributeValue(rootNode) + "\"";
							}
						}
						if (array_contains(emptyElements, tagName) ||
								(hasPrefix && !rootNode.hasChildNodes())) {
							xhtml += "/" + gt;
						} else {
							xhtml += gt;
							// Add output for childNodes collection (which doesn't include attribute nodes)
							var childStartNewLine = !(rootNode.childNodes.length === 1 &&
								rootNode.childNodes[0].nodeType === nodeTypes.TEXT_NODE);
							var childPreformatted = array_contains(preFormattedElements, tagName);
							for (i = 0, len = rootNode.childNodes.length; i < len; i++) {
								xhtml += getXhtml(rootNode.childNodes[i], true, indentation + indentationUnit,
									childStartNewLine, childPreformatted);
							}
							// Add the end tag
							var endTag = lt + "/" + tagName + gt;
							xhtml += childStartNewLine ? newLine + indentation + endTag : endTag;
						}
						return xhtml;
					case nodeTypes.TEXT_NODE:
						if (isWhitespace(rootNode)) {
							xhtml = "";
						} else {
							if (preformatted) {
								xhtml = rootNode.nodeValue;
							} else {
								// Trim whitespace from each line of the text node
								var lines = splitIntoLines(trim(rootNode.nodeValue));
								var trimmedLines = [];
								for (i = 0, len = lines.length; i < len; i++) {
									trimmedLines[i] = trim(lines[i]);
								}
								xhtml = trimmedLines.join(newLine + indentation);
							}
							if (startNewLine) {
								xhtml = newLine + indentation + xhtml;
							}
						}
						return xhtml;
					case nodeTypes.CDATA_SECTION_NODE:
						return "<![CDA" + "TA[" + rootNode.nodeValue + "]" + "]>" + newLine;
					case nodeTypes.DOCUMENT_NODE:
						xhtml = "";
						// Add output for childNodes collection (which doesn't include attribute nodes)
						for (i = 0, len = rootNode.childNodes.length; i < len; i++) {
							xhtml += getXhtml(rootNode.childNodes[i], true, indentation);
						}
						return xhtml;
					default:
						return "";
				}
			} else {
				xhtml = "";
				// Add output for childNodes collection (which doesn't include attribute nodes)
				for (i = 0, len = rootNode.childNodes.length; i < len; i++) {
					xhtml += getXhtml(rootNode.childNodes[i], true, indentation + indentationUnit);
				}
				return xhtml;
			}
		}
 
		function createCommandLineFunctions() {
			ConsoleAppender.addGlobalCommandLineFunction("$", function(appender, args, returnValue) {
				return document.getElementById(args[0]);
			});
 
			ConsoleAppender.addGlobalCommandLineFunction("dir", function(appender, args, returnValue) {
				var lines = [];
				for (var i = 0, len = args.length; i < len; i++) {
					lines[i] = dir(args[i]);
				}
				return lines.join(newLine + newLine);
			});
 
			ConsoleAppender.addGlobalCommandLineFunction("dirxml", function(appender, args, returnValue) {
				var lines = [];
				for (var i = 0, len = args.length; i < len; i++) {
					lines[i] = getXhtml(args[i]);
				}
				return lines.join(newLine + newLine);
			});
 
			ConsoleAppender.addGlobalCommandLineFunction("cd", function(appender, args, returnValue) {
				var win, message;
				if (args.length === 0 || args[0] === "") {
					win = window;
					message = "Command line set to run in main window";
				} else {
					if (args[0].window == args[0]) {
						win = args[0];
						message = "Command line set to run in frame '" + args[0].name + "'";
					} else {
						win = window.frames[args[0]];
						if (win) {
							message = "Command line set to run in frame '" + args[0] + "'";
						} else {
							returnValue.isError = true;
							message = "Frame '" + args[0] + "' does not exist";
							win = appender.getCommandWindow();
						}
					}
				}
				appender.setCommandWindow(win);
				return message;
			});
 
			ConsoleAppender.addGlobalCommandLineFunction("clear", function(appender, args, returnValue) {
				returnValue.appendResult = false;
				appender.clear();
			});
 
			ConsoleAppender.addGlobalCommandLineFunction("keys", function(appender, args, returnValue) {
				var keys = [];
				for (var k in args[0]) {
					keys.push(k);
				}
				return keys;
			});
 
			ConsoleAppender.addGlobalCommandLineFunction("values", function(appender, args, returnValue) {
				var values = [];
				for (var k in args[0]) {
					try {
						values.push(args[0][k]);
					} catch (ex) {
						logLog.warn("values(): Unable to obtain value for key " + k + ". Details: " + getExceptionMessage(ex));
					}
				}
				return values;
			});
 
			ConsoleAppender.addGlobalCommandLineFunction("expansionDepth", function(appender, args, returnValue) {
				var expansionDepth = parseInt(args[0], 10);
				if (isNaN(expansionDepth) || expansionDepth < 0) {
					returnValue.isError = true;
					return "" + args[0] + " is not a valid expansion depth";
				} else {
					appender.setCommandLineObjectExpansionDepth(expansionDepth);
					return "Object expansion depth set to " + expansionDepth;
				}
			});
		}
 
		function init() {
			// Add command line functions
			createCommandLineFunctions();
		}
 
		/* ------------------------------------------------------------------ */
 
		init();
	})();
 
	/* ---------------------------------------------------------------------- */
 
	function createDefaultLogger() {
		var logger = log4javascript.getLogger(defaultLoggerName);
		var a = new log4javascript.PopUpAppender();
		logger.addAppender(a);
		return logger;
	}
 
	/* ---------------------------------------------------------------------- */
	// Main load
 
	log4javascript.setDocumentReady = function() {
		pageLoaded = true;
		log4javascript.dispatchEvent("load", {});
	};
 
	if (window.addEventListener) {
		window.addEventListener("load", log4javascript.setDocumentReady, false);
	} else if (window.attachEvent) {
		window.attachEvent("onload", log4javascript.setDocumentReady);
	} else {
		var oldOnload = window.onload;
		if (typeof window.onload != "function") {
			window.onload = log4javascript.setDocumentReady;
		} else {
			window.onload = function(evt) {
				if (oldOnload) {
					oldOnload(evt);
				}
				log4javascript.setDocumentReady();
			};
		}
	}
 
	return log4javascript;
}, this);