diff --git a/Builder/IISMainHandler/build.txt b/Builder/IISMainHandler/build.txt
index ca25bea..f841b15 100644
--- a/Builder/IISMainHandler/build.txt
+++ b/Builder/IISMainHandler/build.txt
@@ -1 +1 @@
-1241
\ No newline at end of file
+1245
\ No newline at end of file
diff --git a/IISMainHandler/handlers/AbstractGetHandler.cs b/IISMainHandler/handlers/AbstractGetHandler.cs
index 500fcaa..40e858c 100644
--- a/IISMainHandler/handlers/AbstractGetHandler.cs
+++ b/IISMainHandler/handlers/AbstractGetHandler.cs
@@ -16,6 +16,11 @@ namespace FLocal.IISHandler.handlers {
 
 		protected IEnumerable<XElement> getCommonData(WebContext context) {
 			return new XElement[] {
+				new XElement(
+					"url",
+					new XElement("host", context.httprequest.Url.Host),
+					new XElement("port", context.httprequest.Url.Port)
+				),
 				new XElement("handlerName", this.GetType().FullName),
 				new XElement("title", Config.instance.AppInfo),
 				new XElement("current", DateTime.Now.ToXml()),
diff --git a/static/images/light-disabled.png b/static/images/light-disabled.png
new file mode 100644
index 0000000..59aa21e
Binary files /dev/null and b/static/images/light-disabled.png differ
diff --git a/static/images/light.png b/static/images/light.png
new file mode 100644
index 0000000..0cc3f13
Binary files /dev/null and b/static/images/light.png differ
diff --git a/templates/Full/Board.xslt b/templates/Full/Board.xslt
index 7bd3e2a..4480497 100644
--- a/templates/Full/Board.xslt
+++ b/templates/Full/Board.xslt
@@ -6,6 +6,7 @@
 	<xsl:template name="specificTitle">
 		<xsl:value-of select="currentLocation/board/name"/>
 	</xsl:template>
+	<xsl:template name="isLiteEnabled">true</xsl:template>
 	<xsl:template name="specific">
 		<table width="95%" align="center" cellpadding="1" cellspacing="1" class="tablesurround">
 			<tr>
diff --git a/templates/Full/BoardAsThread.xslt b/templates/Full/BoardAsThread.xslt
index 0f8548a..cc7e735 100644
--- a/templates/Full/BoardAsThread.xslt
+++ b/templates/Full/BoardAsThread.xslt
@@ -5,6 +5,7 @@
 	<xsl:template name="specificTitle">
 		<xsl:value-of select="currentLocation/board/name"/>
 	</xsl:template>
+	<xsl:template name="isLiteEnabled">true</xsl:template>
 	<xsl:template name="specific">
 		<table width="95%" align="center" cellpadding="1" cellspacing="1" class="tablesurround">
 			<tr>
diff --git a/templates/Full/Boards.xslt b/templates/Full/Boards.xslt
index 0e64b09..7fbc679 100644
--- a/templates/Full/Boards.xslt
+++ b/templates/Full/Boards.xslt
@@ -3,6 +3,7 @@
 	<xsl:import href="elems\Main.xslt"/>
 	<xsl:import href="elems\BoardInfo.xslt"/>
 	<xsl:template name="specificTitle">Разделы</xsl:template>
+	<xsl:template name="isLiteEnabled">true</xsl:template>
 	<xsl:template name="specific">
 				<table width="95%" align="center" class="tablesurround" cellspacing="1" cellpadding="1">
 					<tr>
diff --git a/templates/Full/Conversation.xslt b/templates/Full/Conversation.xslt
index da942f1..650e68e 100644
--- a/templates/Full/Conversation.xslt
+++ b/templates/Full/Conversation.xslt
@@ -5,6 +5,7 @@
 	<xsl:template name="specificTitle">
 		<xsl:value-of select="conversationInfo/interlocutor/account/user/name"/>
 	</xsl:template>
+	<xsl:template name="isLiteEnabled">true</xsl:template>
 	<xsl:template name="specific">
 		<xsl:call-template name="conversationInfo"/>
 		<br />
diff --git a/templates/Full/Conversations.xslt b/templates/Full/Conversations.xslt
index 181c6d5..032a0fd 100644
--- a/templates/Full/Conversations.xslt
+++ b/templates/Full/Conversations.xslt
@@ -3,6 +3,7 @@
 	<xsl:import href="elems\Main.xslt"/>
 	<xsl:import href="elems\ConversationInfo.xslt"/>
 	<xsl:template name="specificTitle">Личные сообщения</xsl:template>
+	<xsl:template name="isLiteEnabled">true</xsl:template>
 	<xsl:template name="specific">
 		<table width="95%" align="center" cellpadding="1" cellspacing="1" class="tablesurround">
 			<tr>
diff --git a/templates/Full/Login.xslt b/templates/Full/Login.xslt
index e325f4a..af59ddd 100644
--- a/templates/Full/Login.xslt
+++ b/templates/Full/Login.xslt
@@ -2,6 +2,7 @@
 <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns="http://www.w3.org/1999/xhtml">
 	<xsl:import href="elems\Main.xslt"/>
 	<xsl:template name="specificTitle">Вход</xsl:template>
+	<xsl:template name="isLiteEnabled">true</xsl:template>
 	<xsl:template name="specific">
 		<table width="95%" align="center" cellpadding="1" cellspacing="1" class="tablesurround">
 			<tr>
diff --git a/templates/Full/MigrateAccount.xslt b/templates/Full/MigrateAccount.xslt
index 6fab565..08a2f48 100644
--- a/templates/Full/MigrateAccount.xslt
+++ b/templates/Full/MigrateAccount.xslt
@@ -2,6 +2,7 @@
 <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns="http://www.w3.org/1999/xhtml">
 	<xsl:import href="elems\Main.xslt"/>
 	<xsl:template name="specificTitle">Миграция</xsl:template>
+	<xsl:template name="isLiteEnabled">true</xsl:template>
 	<xsl:template name="specific">
 		<table width="95%" align="center" cellpadding="1" cellspacing="1" class="tablesurround">
 			<tr>
diff --git a/templates/Full/NewPoll.xslt b/templates/Full/NewPoll.xslt
index e343487..3f39287 100644
--- a/templates/Full/NewPoll.xslt
+++ b/templates/Full/NewPoll.xslt
@@ -4,6 +4,7 @@
 	<xsl:template name="specificTitle">
 		<xsl:text>Новый опорос</xsl:text>
 	</xsl:template>
+	<xsl:template name="isLiteEnabled">true</xsl:template>
 	<xsl:template name="specific">
 		<table width="95%" align="center" cellpadding="1" cellspacing="1" class="tablesurround">
 			<tr>
diff --git a/templates/Full/NewThread.xslt b/templates/Full/NewThread.xslt
index 0a1eafa..8150ad7 100644
--- a/templates/Full/NewThread.xslt
+++ b/templates/Full/NewThread.xslt
@@ -6,6 +6,7 @@
 		<xsl:text>Новая тема - </xsl:text>
 		<xsl:value-of select="board/name"/>
 	</xsl:template>
+	<xsl:template name="isLiteEnabled">true</xsl:template>
 	<xsl:template name="specific">
 		<table width="95%" align="center" cellpadding="1" cellspacing="1" class="tablesurround">
 			<tr>
diff --git a/templates/Full/PMReply.xslt b/templates/Full/PMReply.xslt
index 27f7446..4f18d90 100644
--- a/templates/Full/PMReply.xslt
+++ b/templates/Full/PMReply.xslt
@@ -6,6 +6,7 @@
 		<xsl:text>Ответ на личное сообщение - </xsl:text>
 		<xsl:value-of select="message/interlocutor/account/user/name"/>
 	</xsl:template>
+	<xsl:template name="isLiteEnabled">true</xsl:template>
 	<xsl:template name="specific">
 		<table width="95%" align="center" cellpadding="1" cellspacing="1" class="tablesurround">
 			<tr>
diff --git a/templates/Full/PMReplyToPost.xslt b/templates/Full/PMReplyToPost.xslt
index 5adee64..70eab00 100644
--- a/templates/Full/PMReplyToPost.xslt
+++ b/templates/Full/PMReplyToPost.xslt
@@ -6,6 +6,7 @@
 		<xsl:text>Личный ответ на сообщение - </xsl:text>
 		<xsl:value-of select="post/title"/>
 	</xsl:template>
+	<xsl:template name="isLiteEnabled">true</xsl:template>
 	<xsl:template name="specific">
 		<table width="95%" align="center" cellpadding="1" cellspacing="1" class="tablesurround">
 			<tr>
diff --git a/templates/Full/PMSend.xslt b/templates/Full/PMSend.xslt
index dc1075d..f9b7893 100644
--- a/templates/Full/PMSend.xslt
+++ b/templates/Full/PMSend.xslt
@@ -3,6 +3,7 @@
 	<xsl:import href="elems\Main.xslt"/>
 	<xsl:import href="elems\TextEditor.xslt"/>
 	<xsl:template name="specificTitle">Новое личное сообщение</xsl:template>
+	<xsl:template name="isLiteEnabled">true</xsl:template>
 	<xsl:template name="specific">
 		<table width="95%" align="center" cellpadding="1" cellspacing="1" class="tablesurround">
 			<tr>
diff --git a/templates/Full/Poll.xslt b/templates/Full/Poll.xslt
index 8714f5c..d2ec220 100644
--- a/templates/Full/Poll.xslt
+++ b/templates/Full/Poll.xslt
@@ -5,6 +5,7 @@
 	<xsl:template name="specificTitle">
 		<xsl:value-of select="poll/title"/>
 	</xsl:template>
+	<xsl:template name="isLiteEnabled">true</xsl:template>
 	<xsl:template name="specific">
 		<table width="95%" align="center" cellpadding="1" cellspacing="1" class="tablesurround">
 			<tr>
diff --git a/templates/Full/Post.xslt b/templates/Full/Post.xslt
index 5bc34a0..5f3eb4e 100644
--- a/templates/Full/Post.xslt
+++ b/templates/Full/Post.xslt
@@ -5,6 +5,7 @@
 	<xsl:template name="specificTitle">
 		<xsl:value-of select="currentLocation/post/name"/>
 	</xsl:template>
+	<xsl:template name="isLiteEnabled">true</xsl:template>
 	<xsl:template name="specific">
 		<xsl:call-template name="threadInfo"/>
 		<br />
diff --git a/templates/Full/PostEdit.xslt b/templates/Full/PostEdit.xslt
index f974aa6..85627b5 100644
--- a/templates/Full/PostEdit.xslt
+++ b/templates/Full/PostEdit.xslt
@@ -6,6 +6,7 @@
 		<xsl:text>Изменение сообщения - </xsl:text>
 		<xsl:value-of select="post/title"/>
 	</xsl:template>
+	<xsl:template name="isLiteEnabled">true</xsl:template>
 	<xsl:template name="specific">
 		<table width="95%" align="center" cellpadding="1" cellspacing="1" class="tablesurround">
 			<tr>
diff --git a/templates/Full/PostPunish.xslt b/templates/Full/PostPunish.xslt
index 067216e..3e110ef 100644
--- a/templates/Full/PostPunish.xslt
+++ b/templates/Full/PostPunish.xslt
@@ -6,6 +6,7 @@
 		<xsl:text>Модерирование сообщения - </xsl:text>
 		<xsl:value-of select="post/title"/>
 	</xsl:template>
+	<xsl:template name="isLiteEnabled">true</xsl:template>
 	<xsl:template name="specific">
 		<table width="95%" align="center" cellpadding="1" cellspacing="1" class="tablesurround">
 			<tr>
diff --git a/templates/Full/PostReply.xslt b/templates/Full/PostReply.xslt
index 8a604ae..8d0617a 100644
--- a/templates/Full/PostReply.xslt
+++ b/templates/Full/PostReply.xslt
@@ -6,6 +6,7 @@
 		<xsl:text>Ответ на сообщение - </xsl:text>
 		<xsl:value-of select="post/title"/>
 	</xsl:template>
+	<xsl:template name="isLiteEnabled">true</xsl:template>
 	<xsl:template name="specific">
 		<table width="95%" align="center" cellpadding="1" cellspacing="1" class="tablesurround">
 			<tr>
diff --git a/templates/Full/Thread.xslt b/templates/Full/Thread.xslt
index 13c083e..64ee6ed 100644
--- a/templates/Full/Thread.xslt
+++ b/templates/Full/Thread.xslt
@@ -5,6 +5,7 @@
 	<xsl:template name="specificTitle">
 		<xsl:value-of select="currentLocation/thread/name"/>
 	</xsl:template>
+	<xsl:template name="isLiteEnabled">true</xsl:template>
 	<xsl:template name="specific">
 		<xsl:call-template name="threadInfo"/>
 		<br />
diff --git a/templates/Full/UserInfo.xslt b/templates/Full/UserInfo.xslt
index d0c4e9f..2bbab55 100644
--- a/templates/Full/UserInfo.xslt
+++ b/templates/Full/UserInfo.xslt
@@ -2,6 +2,7 @@
 <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns="http://www.w3.org/1999/xhtml">
 	<xsl:import href="elems\Main.xslt"/>
 	<xsl:template name="specificTitle"><xsl:value-of select="user/name"/></xsl:template>
+	<xsl:template name="isLiteEnabled">true</xsl:template>
 	<xsl:template name="specific">
 		<table width="95%" align="center" cellpadding="1" cellspacing="1" class="tablesurround">
 			<tr>
diff --git a/templates/Full/elems/Header.xslt b/templates/Full/elems/Header.xslt
index e205c42..75ca3eb 100644
--- a/templates/Full/elems/Header.xslt
+++ b/templates/Full/elems/Header.xslt
@@ -4,6 +4,8 @@
 	<xsl:import href="UsersHeader.xslt"/>
 	<xsl:import href="UploadHeader.xslt"/>
 
+	<xsl:template name="isLiteEnabled">false</xsl:template>
+
 	<xsl:template name="headerLink">
 		<xsl:param name="url"/>
 		<xsl:param name="text"/>
@@ -65,6 +67,37 @@
 									<xsl:with-param name="url">/Users/</xsl:with-param>
 									<xsl:with-param name="text">Пользователи</xsl:with-param>
 								</xsl:call-template>
+								<span style="float:right">
+									<xsl:variable name="isLiteEnabled">
+										<xsl:call-template name="isLiteEnabled"/>
+									</xsl:variable>
+									<xsl:variable name="prefix">
+										<xsl:text>https://</xsl:text>
+										<xsl:value-of select="url/host"/>
+										<xsl:text>:</xsl:text>
+										<xsl:if test="url/port &gt;= 1000">
+											<xsl:value-of select="floor(url/port div 1000)"/>
+										</xsl:if>
+									</xsl:variable>
+									<a>
+										<xsl:if test="$isLiteEnabled='true'">
+											<xsl:attribute name="href">
+												<xsl:value-of select="$prefix"/>
+												<xsl:text>447</xsl:text>
+												<xsl:value-of select="currentUrl"/>
+											</xsl:attribute>
+										</xsl:if>
+										<img>
+											<xsl:attribute name="src">
+												<xsl:text>/static/images/light</xsl:text>
+												<xsl:if test="not($isLiteEnabled='true')">
+													<xsl:text>-disabled</xsl:text>
+												</xsl:if>
+												<xsl:text>.png</xsl:text>
+											</xsl:attribute>
+										</img>
+									</a>
+								</span>
 							</td>
 						</tr>
 					</table>