add: log4jsLogger.error("Unsupported Browser"); 
context: Log4js.BrowserConsoleAppender = function() {	/**	 * Delegate for browser specific implementation	 * @type Log4js.Appender	 * @private	 */	this.consoleDelegate = null;		if (window.console) {		this.consoleDelegate = new Log4js.SafariJSConsoleAppender(); 	}    else if (window.opera) {		this.consoleDelegate = new Log4js.OperaJSConsoleAppender(); 	}	else if(netscape) {		this.consoleDelegate = new Log4js.MozJSConsoleAppender(); 	}    else {       //@todo    }};
meta: 2141	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/2141/b0c58f09c3bf106450447263059885d62b3f736a/log4js.js/buggy/log4js/src/main/js/log4js.js