diff --git a/examples/app.js b/examples/app.js
index 9c39778..df47b03 100644
--- a/examples/app.js
+++ b/examples/app.js
@@ -1,6 +1,9 @@
 var logger = require('../lib/nlogger').logger(module);
 var first = require('./my-modules/first');
-var second = require('./my-modules/second');
+/**
+ * Example with runtime config - see module code
+ */
+var second = require('./my-modules/runtime-config');
 var third = require('./my-modules/third');
 
 setTimeout(function() {
diff --git a/examples/my-modules/runtime-config.js b/examples/my-modules/runtime-config.js
new file mode 100644
index 0000000..47b16a6
--- /dev/null
+++ b/examples/my-modules/runtime-config.js
@@ -0,0 +1,5 @@
+var logger = require('../../lib/nlogger').logger('my-custom-name',{level:{'*':'warn'}});
+
+logger.info('Because of the runtime cfg, this will be ignored.');
+logger.warn('But this is visible. Notice the custom name too :-)');
+logger.error('And here is a formated string with a number %d and an object %s',5,require('util').inspect({a:1}));
diff --git a/examples/my-modules/second.js b/examples/my-modules/second.js
deleted file mode 100644
index d1d8bff..0000000
--- a/examples/my-modules/second.js
+++ /dev/null
@@ -1,3 +0,0 @@
-var logger = require('../../lib/nlogger').logger('my-custom-name');
-
-logger.info('Message from second module with defined module name');
diff --git a/lib/nlogger.js b/lib/nlogger.js
index 89e767a..c7e414d 100644
--- a/lib/nlogger.js
+++ b/lib/nlogger.js
@@ -24,7 +24,8 @@
 */
 
 var util = require('util'),
-	fs = require('fs');
+	fs = require('fs'),
+	config = false;
 
 
 function padZero(number) {
@@ -76,37 +77,27 @@ function getClass(module) {
 	}
 }
 
-function getMessage(items) {
-	var msg = [], i;
-	for (i = 0; i < items.length; i++) {
-		if (typeof items[i] == 'string') {
-			msg.push(items[i]);
-		} else {
-			msg.push(util.inspect(items[i], false, 10));
-		}
-	}
-	return msg.join('');
-}
-
 try {
-	var file = fs.readFileSync('./nlogger.json', 'binary'),
-		config = JSON.parse(file);
+	var file = fs.readFileSync('./nlogger.json', 'binary');
+	config = JSON.parse(file);
 } catch(e) {
-	util.puts(getDate() + ' WARN  nlogger - Config file not found. Using default configuration.');
-	config = {};
+
 }
 
-var defaultLogLevel = config.level && config.level['*'] || 'trace';
-var logLevels = config.level || {};
-var useColor = config.color || (config.color == 'auto' && process.env.TERM && process.env.TERM.indexOf('color') >= 0);
+exports.logger = function(module,_config) {
+
+	config = (_config && (typeof _config == 'object')) ? _config : (config ? config : {});
+
+	var defaultLogLevel = config.level && config.level['*'] || 'trace';
+	var logLevels = config.level || {};
+	var useColor = config.color || (config.color == 'auto' && process.env.TERM && process.env.TERM.indexOf('color') >= 0);
 
-exports.logger = function(module) {
 	var methods = {
-		'trace': { 'color': 32, 'priority': 1 },
-		'debug': { 'color': 34, 'priority': 2 },
-		'info':  { 'color': 30, 'priority': 3 },
-		'warn':  { 'color': 35, 'priority': 4 },
-		'error': { 'color': 31, 'priority': 5 }
+		'trace': { 'color': 32, 'priority': 1, 'error' : 0 },
+		'debug': { 'color': 34, 'priority': 2, 'error' : 0 },
+		'info':  { 'color': 30, 'priority': 3, 'error' : 0 },
+		'warn':  { 'color': 35, 'priority': 4, 'error' : 1 },
+		'error': { 'color': 31, 'priority': 5, 'error' : 1 }
 	};
 
 	var logLevel = logLevels[getClass(module)] || defaultLogLevel;
@@ -120,13 +111,18 @@ exports.logger = function(module) {
 		if (useColor) {
 			logger[level] = function(msg) {
 				if (methods[level].priority >= priority) {
-					util.puts('\x1B[' + methods[level].color + 'm' + getDate() + ' ' + levelStr + ' ' + getClass(module) +':' + getLine() + ' - ' + getMessage(arguments) + '\x1B[0m');
+					util.puts('\x1B[' + methods[level].color + 'm' + getDate() + ' ' + levelStr + ' ' + getClass(module) +':' + getLine() + ' - ' + util.format(arguments) + '\x1B[0m');
 				}
 			};
 		} else {
 			logger[level] = function(msg) {
 				if (methods[level].priority >= priority) {
-					util.puts(getDate() + ' ' + levelStr + ' ' + getClass(module) +':' + getLine() + ' - ' + getMessage(arguments));
+					if(methods[level].error) {
+						util.error(getDate() + ' ' + levelStr + ' ' + getClass(module) +':' + getLine() + ' - ' + util.format.apply(util,arguments));
+					}
+					else {
+						util.puts(getDate() + ' ' + levelStr + ' ' + getClass(module) +':' + getLine() + ' - ' + util.format.apply(util,arguments));
+					}
 				}
 			};
 		}