diff --git a/src/nhttpd/web/Y_Baselib.js b/src/nhttpd/web/Y_Baselib.js
index a9c208648..fa4754711 100644
--- a/src/nhttpd/web/Y_Baselib.js
+++ b/src/nhttpd/web/Y_Baselib.js
@@ -3,8 +3,19 @@
 	$Revision$
 */
 var baselib_version="2.0.0";
-var agt=navigator.userAgent.toLowerCase();
-var is_ie     = ((agt.indexOf("msie") != -1) && (agt.indexOf("opera") == -1));
+var tmp = document.documentMode, e, isIE;
+// Try to force this property to be a string.
+try{document.documentMode = "";}
+catch(e){ };
+// If document.documentMode is a number, then it is a read-only property, and so
+// we have IE 8+.
+// Otherwise, if conditional compilation works, then we have IE < 11.
+// Otherwise, we have a non-IE browser.
+isIE = typeof document.documentMode == "number" || new Function("return/*@cc_on!@*/!1")( );
+// Switch back the value to be unobtrusive for non-IE browsers.
+try{document.documentMode = tmp;}
+catch(e){ };
+
 /*DHTML-Basics*/
 function $yN(_obj_name)
 {
diff --git a/src/nhttpd/web/Y_Tools_Cmd.yhtm b/src/nhttpd/web/Y_Tools_Cmd.yhtm
index 5181c4303..5eea1491b 100644
--- a/src/nhttpd/web/Y_Tools_Cmd.yhtm
+++ b/src/nhttpd/web/Y_Tools_Cmd.yhtm
@@ -79,9 +79,7 @@ function doUpload()
 
 <script language="JavaScript" type="text/javascript" >
 //<![CDATA[
-	var agt=navigator.userAgent.toLowerCase();
-	var is_ie = ((agt.indexOf("msie") != -1) && (agt.indexOf("opera") == -1));
-	if(is_ie)
+	if(isIE)
 		document.f.appendx.checked = true;
 	window.document.f.cmd.focus();
 //]]>
diff --git a/src/nhttpd/web/Y_Tools_Timer_Sync.js b/src/nhttpd/web/Y_Tools_Timer_Sync.js
index b21a68398..81c0a6402 100644
--- a/src/nhttpd/web/Y_Tools_Timer_Sync.js
+++ b/src/nhttpd/web/Y_Tools_Timer_Sync.js
@@ -109,8 +109,6 @@ function processReqChange()
 			}
 			else if (document.f.planer[1].checked == true)
 			{
-				var agt=navigator.userAgent.toLowerCase();
-				var is_ie     = ((agt.indexOf("msie") != -1) && (agt.indexOf("opera") == -1));
 				var xml = g_req.responseXML;
 				var recProg_NodeList = xml.getElementsByTagName('item');
 				for(i=0;i<recProg_NodeList.length;i++)
@@ -119,7 +117,7 @@ function processReqChange()
 
 					var progName 		= getXMLNodeItemValue(recProg_Node, 'title');
 					var description 	= getXMLNodeItemValue(recProg_Node, 'description');
-//FF3?Probs					if(is_ie)
+//FF3?Probs					if(isIE)
 					{
 						var sDate	= getXMLNodeItemValue(recProg_Node, 'dc:date');
 						var sender	= getXMLNodeItemValue(recProg_Node, 'dc:subject');
diff --git a/src/nhttpd/web/Y_VLC.js b/src/nhttpd/web/Y_VLC.js
index 6f308dd80..5f93d4794 100644
--- a/src/nhttpd/web/Y_VLC.js
+++ b/src/nhttpd/web/Y_VLC.js
@@ -29,14 +29,14 @@ CyVLC.prototype = {
 		this.c_masterid = masterid;
 		this.c_width = width;
 		this.c_height = height;
-		if(!is_ie) {
+		if(!isIE) {
 			this.version_string = this._get_version();
 			this._generate_sub_versions();
 			this._determine_plugin_generation();
 		}
 		this.insert_control();
 		this.vlc = id(_id);
-		if(is_ie) {
+		if(isIE) {
 			this.version_string = this._get_version();
 			this._generate_sub_versions();
 			this._determine_plugin_generation();
@@ -44,7 +44,7 @@ CyVLC.prototype = {
 		this.set_resolution(this.c_width, this.c_height);
 	},
 	_get_version : function() {
-		if(is_ie)
+		if(isIE)
 		{
 			var vstr = this.vlc.VersionInfo;
 			var words = vstr.split(" ");
@@ -81,7 +81,7 @@ CyVLC.prototype = {
 		if(ve.length >4 && ve[4] !== "")	this.version_level4 = ve[4];
 	},
 	_determine_plugin_generation : function() {
-		if(is_ie)
+		if(isIE)
 			this.plugin = "ie1";
 		else
 			if(this.version_level1 <= 0 && this.version_level2 <= 8 && this.version_level3 <= 5)
@@ -222,7 +222,7 @@ CyVLC.prototype = {
 	insert_control : function()
 	{
 		var vlc_control_html = "";
-		if(is_ie) {
+		if(isIE) {
 			vlc_control_html =
 				"<object classid=\"clsid:E23FE9C6-778E-49D4-B537-38FCDE4887D8\" " +
 /*				"<object classid=\"clsid:9BE31822-FDAD-461B-AD51-BE1D1C159921\" " +*/
diff --git a/src/nhttpd/web/Y_Version.txt b/src/nhttpd/web/Y_Version.txt
index df5dbea52..cd9a3644c 100644
--- a/src/nhttpd/web/Y_Version.txt
+++ b/src/nhttpd/web/Y_Version.txt
@@ -1,4 +1,4 @@
-version=2.9.0.21
+version=2.9.0.22
 date=01.05.2015
 type=Release
 info=Port CST