diff --git a/src/mibew/js/1614/brws.js b/src/mibew/js/1614/brws.js
index c4c0de99..59658863 100644
--- a/src/mibew/js/1614/brws.js
+++ b/src/mibew/js/1614/brws.js
@@ -1 +1,8 @@
-var myAgent="",myVer=0,myRealAgent="";function detectAgent(){for(var a="opera msie safari firefox netscape mozilla".split(" "),b=navigator.userAgent.toLowerCase(),c=0;c<a.length;c++){var d=a[c];if(-1!=b.indexOf(d)){myAgent=d;if(!window.RegExp)break;null!=RegExp(d+"[ /]?([0-9]+(.[0-9]+)?)").exec(b)&&(myVer=parseFloat(RegExp.$1));break}}myRealAgent=myAgent;"Gecko"==navigator.product&&(myAgent="moz")}detectAgent();function getEl(a){return document.getElementById(a)};
+/*
+ This file is a part of Mibew Messenger.
+ http://mibew.org
+
+ Copyright (c) 2005-2014 Mibew Messenger Community
+ License: http://mibew.org/license.php
+*/
+var myAgent="",myVer=0,myRealAgent="";function detectAgent(){for(var a="opera msie safari firefox netscape mozilla".split(" "),b=navigator.userAgent.toLowerCase(),c=0;c<a.length;c++){var d=a[c];if(-1!=b.indexOf(d)){myAgent=d;if(!window.RegExp)break;null!=(new RegExp(d+"[ /]?([0-9]+(.[0-9]+)?)")).exec(b)&&(myVer=parseFloat(RegExp.$1));break}}myRealAgent=myAgent;"Gecko"==navigator.product&&(myAgent="moz")}detectAgent();function getEl(a){return document.getElementById(a)};
diff --git a/src/mibew/js/1614/common.js b/src/mibew/js/1614/common.js
index d77d6a23..09743e5a 100644
--- a/src/mibew/js/1614/common.js
+++ b/src/mibew/js/1614/common.js
@@ -4,6 +4,9 @@
 
  Copyright (c) 2005-2014 Mibew Messenger Community
  License: http://mibew.org/license.php
+
+ common.js Based on Prototype JavaScript framework, version 1.3.1
+ http://prototype.conio.net/ (c) 2005 Sam Stephenson <sam@conio.net>
 */
 var Class={create:function(){return function(){this.initialize.apply(this,arguments)}},inherit:function(a,b,c){Object.extend(Object.extend(a.prototype,b.prototype),c)}};Object.extend=function(a,b){for(property in b)a[property]=b[property];return a};Object.prototype.extend=function(a){return Object.extend.apply(this,[this,a])};Function.prototype.bind=function(a){var b=this;return function(){return b.apply(a,arguments)}};
 Function.prototype.bindAsEventListener=function(a){var b=this;return function(c){b.call(a,c||window.event)}};Number.prototype.toColorPart=function(){var a=this.toString(16);return 16>this?"0"+a:a};var Try={these:function(){for(var a,b=0;b<arguments.length;b++){var c=arguments[b];try{a=c();break}catch(d){}}return a}},PeriodicalExecuter=Class.create();
@@ -19,7 +22,7 @@ Class.inherit(Ajax.Request,Ajax.Base,{initialize:function(a,b){this.transport=Aj
 var EventHelper={register:function(a,b,c){var d=a[b];a[b]="function"!=typeof d?c:function(){d();c()}}},Behaviour={list:[],register:function(a){Behaviour.list.push(a)},init:function(){EventHelper.register(window,"onload",function(){Behaviour.apply()})},apply:function(){for(h=0;sheet=Behaviour.list[h];h++)for(selector in sheet)if(list=document.getElementsBySelector(selector))for(i=0;element=list[i];i++)sheet[selector](element)}};Behaviour.init();
 function getAllChildren(a){return a.all?a.all:a.getElementsByTagName("*")}
 document.getElementsBySelector=function(a){if(!document.getElementsByTagName)return[];a=a.split(" ");for(var b=Array(document),c=0;c<a.length;c++)if(token=a[c].replace(/^\s+/,"").replace(/\s+$/,""),-1<token.indexOf("#")){var d=token.split("#"),e=d[0],b=document.getElementById(d[1]);if(null==b||e&&b.nodeName.toLowerCase()!=e)return[];b=Array(b)}else if(-1<token.indexOf(".")){d=token.split(".");e=d[0];d=d[1];e||(e="*");for(var m=[],l=0,p=0;p<b.length;p++){var f;f="*"==e?getAllChildren(b[p]):b[p].getElementsByTagName(e);
-if(null!=f)for(var q=0;q<f.length;q++)m[l++]=f[q]}b=[];for(l=e=0;l<m.length;l++)m[l].className&&m[l].className.match(RegExp("\\b"+d+"\\b"))&&(b[e++]=m[l])}else{if(!b[0])return;e=token;m=[];for(p=l=0;p<b.length;p++)for(f=b[p].getElementsByTagName(e),q=0;q<f.length;q++)m[l++]=f[q];b=m}return b};
+if(null!=f)for(var q=0;q<f.length;q++)m[l++]=f[q]}b=[];for(l=e=0;l<m.length;l++)m[l].className&&m[l].className.match(new RegExp("\\b"+d+"\\b"))&&(b[e++]=m[l])}else{if(!b[0])return;e=token;m=[];for(p=l=0;p<b.length;p++)for(f=b[p].getElementsByTagName(e),q=0;q<f.length;q++)m[l++]=f[q];b=m}return b};
 var NodeUtils={getNodeValue:function(a,b){var c=a.getElementsByTagName(b);if(0==c.length)return"";var c=c[0].childNodes,d="";for(i=0;i<c.length;i++)d+=c[i].nodeValue;return d},getNodeText:function(a){a=a.childNodes;var b="";for(i=0;i<a.length;i++)b+=a[i].nodeValue;return b},getAttrValue:function(a,b){for(k=0;k<a.attributes.length;k++)if(a.attributes[k].nodeName==b)return a.attributes[k].nodeValue;return null}},CommonUtils={getRow:function(a,b){var c=b.rows[a];if(null!=c)return c;if(null!=b.rows.head)return null;
 for(k=0;k<b.rows.length;k++)if(b.rows[k].id==a)return b.rows[k];return null},getCell:function(a,b,c){var d=b.cells[a];if(null!=d)return d;if(null!=c.rows.head)return null;for(k=0;k<b.cells.length;k++)if(b.cells[k].id==a)return b.cells[k];return null},insertCell:function(a,b,c,d,e,m){a=a.insertCell(-1);a.id=b;d&&(a.align=d);a.className=c;e&&(a.height=e);a.innerHTML=m}};
 function playSound(a){var b=document.createElement("div");-1!=navigator.userAgent.toLowerCase().indexOf("opera")&&(b.style="position: absolute; left: 0px; top: -200px;");document.body.appendChild(b);b.innerHTML='<audio autoplay src="'+a+'"><embed src="'+a+'" hidden="true" autostart="true" loop="false"></audio>'}function htmlescape(a){return a.replace("&","&amp;").replace("<","&lt;").replace(">","&gt;").replace('"',"&quot;")};
diff --git a/src/mibew/js/1614/ie.js b/src/mibew/js/1614/ie.js
index 3ca1172a..61ea6dcb 100644
--- a/src/mibew/js/1614/ie.js
+++ b/src/mibew/js/1614/ie.js
@@ -1,3 +1,11 @@
+/*
+ This file is a part of Mibew Messenger.
+ http://mibew.org
+
+ Copyright (c) 2005-2014 Mibew Messenger Community
+ License: http://mibew.org/license.php
+*/
+
 window.attachEvent('onload', mkwidth);
 window.attachEvent('onresize', mkwidth);
 
diff --git a/src/mibew/js/1614/locale.js b/src/mibew/js/1614/locale.js
index c94fffcc..e68f8957 100644
--- a/src/mibew/js/1614/locale.js
+++ b/src/mibew/js/1614/locale.js
@@ -1,3 +1,11 @@
+/*
+ This file is a part of Mibew Messenger.
+ http://mibew.org
+
+ Copyright (c) 2005-2014 Mibew Messenger Community
+ License: http://mibew.org/license.php
+*/
+
 var popupStatus = 0;
 
 function loadPopup(){
diff --git a/src/mibew/js/1614/soundcheck.js b/src/mibew/js/1614/soundcheck.js
index 8a487619..4cfa2ddd 100644
--- a/src/mibew/js/1614/soundcheck.js
+++ b/src/mibew/js/1614/soundcheck.js
@@ -1 +1,8 @@
+/*
+ This file is a part of Mibew Messenger.
+ http://mibew.org
+
+ Copyright (c) 2005-2014 Mibew Messenger Community
+ License: http://mibew.org/license.php
+*/
 Behaviour.register({"a#check-nv":function(a){a.onclick=function(){playSound(wroot+"/sounds/new_user.wav")}},"a#check-nm":function(a){a.onclick=function(){playSound(wroot+"/sounds/new_message.wav")}}});
diff --git a/src/mibew/js/1614/update.js b/src/mibew/js/1614/update.js
index 0fc1c53d..c1dc6def 100644
--- a/src/mibew/js/1614/update.js
+++ b/src/mibew/js/1614/update.js
@@ -1,3 +1,11 @@
+/*
+ This file is a part of Mibew Messenger.
+ http://mibew.org
+
+ Copyright (c) 2005-2014 Mibew Messenger Community
+ License: http://mibew.org/license.php
+*/
+
 function loadNews() {
 	if (typeof(window.mibewNews) == "undefined" || typeof(window.mibewNews.length) == "undefined")
 		return;
diff --git a/src/mibew/js/source/brws.js b/src/mibew/js/source/brws.js
index 9a895eb0..8f84f09b 100644
--- a/src/mibew/js/source/brws.js
+++ b/src/mibew/js/source/brws.js
@@ -1,3 +1,11 @@
+/**
+ * @preserve This file is a part of Mibew Messenger.
+ * http://mibew.org
+ * 
+ * Copyright (c) 2005-2014 Mibew Messenger Community
+ * License: http://mibew.org/license.php
+ */
+
 var myAgent = "";
 var myVer = 0;
 var myRealAgent = "";
diff --git a/src/mibew/js/source/common.js b/src/mibew/js/source/common.js
index 34501ea5..bd0f0c19 100644
--- a/src/mibew/js/source/common.js
+++ b/src/mibew/js/source/common.js
@@ -4,9 +4,7 @@
  *
  * Copyright (c) 2005-2014 Mibew Messenger Community
  * License: http://mibew.org/license.php
- */
-
-/*
+ *
  * common.js Based on Prototype JavaScript framework, version 1.3.1
  * http://prototype.conio.net/ (c) 2005 Sam Stephenson <sam@conio.net>
  */
diff --git a/src/mibew/js/source/soundcheck.js b/src/mibew/js/source/soundcheck.js
index 34c41582..5ecbc946 100644
--- a/src/mibew/js/source/soundcheck.js
+++ b/src/mibew/js/source/soundcheck.js
@@ -1,3 +1,11 @@
+/**
+ * @preserve This file is a part of Mibew Messenger.
+ * http://mibew.org
+ * 
+ * Copyright (c) 2005-2014 Mibew Messenger Community
+ * License: http://mibew.org/license.php
+ */
+
 Behaviour.register({
 	'a#check-nv' : function(el) {
 		el.onclick = function() {
diff --git a/src/mibew/js/source/users.js b/src/mibew/js/source/users.js
index 672626c8..5a0fc330 100644
--- a/src/mibew/js/source/users.js
+++ b/src/mibew/js/source/users.js
@@ -1,5 +1,5 @@
 /**
- * @preserve This file is part a of Mibew Messenger.
+ * @preserve This file is a part of Mibew Messenger.
  * http://mibew.org
  * 
  * Copyright (c) 2005-2014 Mibew Messenger Community
diff --git a/src/mibew/styles/default/chat.css b/src/mibew/styles/default/chat.css
index c2ff8ba4..c96d8cbb 100644
--- a/src/mibew/styles/default/chat.css
+++ b/src/mibew/styles/default/chat.css
@@ -1,3 +1,21 @@
+/*
+ * This file is a part of Mibew Messenger.
+ *
+ * Copyright 2005-2014 the original author or authors.
+ *
+ * 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.
+ */
+
 a {
 	text-decoration: underline;
 }
diff --git a/src/mibew/styles/original/chat.css b/src/mibew/styles/original/chat.css
index c934e164..d906c206 100644
--- a/src/mibew/styles/original/chat.css
+++ b/src/mibew/styles/original/chat.css
@@ -1,3 +1,21 @@
+/*
+ * This file is a part of Mibew Messenger.
+ *
+ * Copyright 2005-2014 the original author or authors.
+ *
+ * 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.
+ */
+
 a {
 	text-decoration: underline;
 }
diff --git a/src/mibew/styles/silver/chat.css b/src/mibew/styles/silver/chat.css
index c00fe5b5..0cd97365 100644
--- a/src/mibew/styles/silver/chat.css
+++ b/src/mibew/styles/silver/chat.css
@@ -1,3 +1,21 @@
+/*
+ * This file is a part of Mibew Messenger.
+ *
+ * Copyright 2005-2014 the original author or authors.
+ *
+ * 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.
+ */
+
 html, body {
 	height: 100%;
 }
diff --git a/src/mibew/styles/simplicity/chat.css b/src/mibew/styles/simplicity/chat.css
index b90caee5..efa2dafc 100644
--- a/src/mibew/styles/simplicity/chat.css
+++ b/src/mibew/styles/simplicity/chat.css
@@ -1,3 +1,21 @@
+/*
+ * This file is a part of Mibew Messenger.
+ *
+ * Copyright 2005-2014 the original author or authors.
+ *
+ * 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.
+ */
+
 BODY {
 	margin: 0px;
 	font-family: Verdana, Arial, Helvetica, sans-serif;