diff --git a/fhem/CHANGED b/fhem/CHANGED
index b64361d06..69cc2b084 100644
--- a/fhem/CHANGED
+++ b/fhem/CHANGED
@@ -1,5 +1,6 @@
 # Add changes at the top of the list. Keep it in ASCII
 - SVN
+  - feature: longpoll in multiple browserwindows, some css ids changed to class
   - feature: fhem.pl: version command added
   - feature: LightScene: add html overview of all configured scenes in
              detail view. allow usage of overview in a weblink.
diff --git a/fhem/FHEM/01_FHEMWEB.pm b/fhem/FHEM/01_FHEMWEB.pm
index 42f7d2ee3..686c13ca0 100755
--- a/fhem/FHEM/01_FHEMWEB.pm
+++ b/fhem/FHEM/01_FHEMWEB.pm
@@ -700,11 +700,9 @@ FW_makeTable($$$@)
     if($n eq "DEF" && !$FW_hiddenroom{input}) {
       FW_makeEdit($name, $n, $val);
 
-    } 
-	else {
-
+    } else {
       FW_pO "<td><div class=\"dname\">$n</div></td>";
-      if(ref($val)) {#handle readings
+      if(ref($val)) { #handle readings
         my ($v, $t) = ($val->{VAL}, $val->{TIME});
         $v = FW_htmlEscape($v);
         if($FW_ss) {
@@ -712,42 +710,43 @@ FW_makeTable($$$@)
           FW_pO "<td><div class=\"dval\">$v$t</div></td>";
         } else {		
           $t = "" if(!$t);
-          FW_pO "<td><div id=\"$name-$n\">$v</div></td>";
-          FW_pO "<td><div id=\"$name-$n-ts\">$t</div></td>";
+          FW_pO "<td><div informId=\"$name-$n\">$v</div></td>";
+          FW_pO "<td><div informId=\"$name-$n-ts\">$t</div></td>";
         }
-      } 
-	  else {
+      } else {
         $val = FW_htmlEscape($val);
-		# if possible provide link to reference
-		if ($n eq "room"){
-		  my @tmp;
+        # if possible provide link to reference
+        if ($n eq "room"){
+          my @tmp;
           push @tmp,FW_pH("room=$_" , $_ ,0,"",1,1)foreach(split(",",$val));
-		  FW_pO "<td><div class=\"dval\">"
+          FW_pO "<td><div class=\"dval\">"
 		        .join(",",@tmp)
 		        ."</div></td>";	
-		}
-		elsif ($n eq "webCmd"){
-		  my @tmp;
+        } elsif ($n eq "webCmd"){
+          my @tmp;
           push @tmp,FW_pH("cmd.$name=set $name $_&detail=$name" , $_ ,0,"",1,1)foreach(split(":",$val));
-		  FW_pO "<td><div id=\"$name-$n\">"
+          FW_pO "<td><div name=\"$name-$n\">"
 		       .join(":",@tmp)
 		       ."</div></td>";	
-		}	
-		elsif ($n =~ m/^fp_(.*)/ && $defs{$1}){#special for Floorplan
-		  FW_pH "detail=$1", $val,1;
-		}
-		else{
-		  my @tmp;
+        } elsif ($n =~ m/^fp_(.*)/ && $defs{$1}){#special for Floorplan
+          FW_pH "detail=$1", $val,1;
+
+        } else {
+          my @tmp;
           foreach(split(",",$val)){
-		    if ($defs{$_}){ push @tmp, FW_pH( "detail=$_", $_ ,0,"",1,1);}
-			else{		    push @tmp, $_;}
-		  }
-		  FW_pO "<td><div class=\"dval\">"
+          if($defs{$_}) {
+            push @tmp, FW_pH( "detail=$_", $_ ,0,"",1,1);
+          } else {
+            push @tmp, $_;}
+          }
+	  FW_pO "<td><div class=\"dval\">"
 		        .join(",",@tmp)
 		        ."</div></td>";				
-	    }
+        }
       }
+
     }
+
     FW_pH "cmd.$name=$cmd $name $n&amp;detail=$name", $cmd, 1
         if($cmd && !$FW_ss);
     FW_pO "</tr>";
@@ -990,7 +989,7 @@ FW_roomOverview($)
       my ($l1, $l2) = ($list1[$idx], $list2[$idx]);
       if(!$l1) {
         FW_pO "</table></td></tr>" if($idx);
-        FW_pO "<tr><td><table id=\"room\">"
+        FW_pO "<tr><td><table class=\"room\">"
           if($idx<int(@list1)-1);
 
       } else {
@@ -1106,7 +1105,7 @@ FW_showRoom()
 
       my ($allSets, $cmdlist, $txt) = FW_devState($d, $rf, \%extPage);
 
-      FW_pO "<td id=\"$d\">$txt</td>";
+      FW_pO "<td informId=\"$d\">$txt</td>";
 
 
       ######
@@ -1812,7 +1811,7 @@ FW_displayFileList($@)
 {
   my ($heading,@files)= @_;
   FW_pO "$heading<br>";
-  FW_pO "<table class=\"block\" id=\"at\">";
+  FW_pO "<table class=\"block fileList\">";
   my $row = 0;
   foreach my $f (@files) {
     FW_pO "<tr class=\"" . ($row?"odd":"even") . "\">";
@@ -1871,7 +1870,7 @@ FW_style($$)
 
   } elsif($a[1] eq "select") {
     my @fl = grep { $_ !~ m/floorplan/ } FW_fileList("$FW_cssdir/.*style.css");
-    FW_pO "$start<table class=\"block\" id=\"at\">";
+    FW_pO "$start<table class=\"block fileList\">";
     my $row = 0;
     foreach my $file (@fl) {
       next if($file =~ m/svg_/);
diff --git a/fhem/www/pgm2/brightstyle.css b/fhem/www/pgm2/brightstyle.css
index 30280fb12..afc8c7b1b 100644
--- a/fhem/www/pgm2/brightstyle.css
+++ b/fhem/www/pgm2/brightstyle.css
@@ -24,11 +24,11 @@ table.block tr.sel { background: #cac8cf; }
 table.block td {border: 0px solid none;}
 
 div#menu table { width:100%; }
-table#room { background: #eee; width: 100%; border: 1px solid lightgray; border-radius:3px; border-spacing:0px;}
-table#room td { border-top: 1px solid #fff; border-bottom: 1px solid #ddd; padding: 5px 10px 4px; font-weight:bold; font-size:1.2em}
-table#room a { color: #455667; text-decoration: none; }
-table#room a:hover { color: #1f1f1f; }
-table#room tr.sel { background: #cac8cf; }
+table.room { background: #eee; width: 100%; border: 1px solid lightgray; border-radius:3px; border-spacing:0px;}
+table.room td { border-top: 1px solid #fff; border-bottom: 1px solid #ddd; padding: 5px 10px 4px; font-weight:bold; font-size:1.2em}
+table.room a { color: #455667; text-decoration: none; }
+table.room a:hover { color: #1f1f1f; }
+table.room tr.sel { background: #cac8cf; }
 
 input { outline:none; border:1px solid white; color: #344556; padding:2px; border-radius:1px;}
 input:focus { border: 1px solid red; }
@@ -70,4 +70,4 @@ g.on { fill:red; }
 div[id*="Kalender-"] { width: 250px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
 div[id*="disp"] { width: 250px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
 table.block tr.even a[onclick*="Javascript"], table.block tr.odd a[onclick*="Javascript"] { font-weight: bold; cursor: pointer }
-div.dval { margin-left:10px; }
\ No newline at end of file
+div.dval { margin-left:10px; }
diff --git a/fhem/www/pgm2/console.js b/fhem/www/pgm2/console.js
index 7a491e6e4..cd5f3b828 100644
--- a/fhem/www/pgm2/console.js
+++ b/fhem/www/pgm2/console.js
@@ -25,7 +25,6 @@ consUpdate()
       p.parentElement.parentElement.scrollTop = p.scrollHeight; // html tag
     else
       p.parentElement.scrollTop = p.scrollHeight; // body tag
-    console.log("P4:"+p.scrollHeight);
   }
 }
 
@@ -37,7 +36,10 @@ consFill()
     document.body.removeChild(errdiv);
 
   consConn = new XMLHttpRequest();
-  consConn.open("GET", document.location.pathname+"?XHR=1&inform=console", true);
+  // Needed when using multiple FF windows
+  var timestamp = "&timestamp="+new Date().getTime();
+  var query = document.location.pathname+"?XHR=1&inform=console"+timestamp;
+  consConn.open("GET", query, true);
   consConn.onreadystatechange = consUpdate;
   consConn.send(null);
 }
diff --git a/fhem/www/pgm2/darkstyle.css b/fhem/www/pgm2/darkstyle.css
index 916b4f432..0fc2f2da1 100644
--- a/fhem/www/pgm2/darkstyle.css
+++ b/fhem/www/pgm2/darkstyle.css
@@ -15,10 +15,10 @@ table.block tr.sel { background: red; }
 table { border-radius:8px; border-spacing: 0px;
        padding-bottom: 6px; padding-top: 6px;}
 
-table#room { background: #111111; width: 140px;}
-table#room a { color: #CCCCCC; text-decoration: none; }
-table#room a:hover { color: #ffffff; }        
-table#room tr.sel { background: red; }
+table.room { background: #111111; width: 140px;}
+table.room a { color: #CCCCCC; text-decoration: none; }
+table.room a:hover { color: #ffffff; }        
+table.room tr.sel { background: red; }
 th {color:red; text-align: left; padding-left: 10px; font-weight: bold;}
 td {padding-left: 10px; padding-right: 10px; padding-top: 3px; padding-bottom: 3px;}
 input {outline:none; background-color: #111111; 
diff --git a/fhem/www/pgm2/fhemweb.js b/fhem/www/pgm2/fhemweb.js
index dce693b25..f272ec52b 100644
--- a/fhem/www/pgm2/fhemweb.js
+++ b/fhem/www/pgm2/fhemweb.js
@@ -33,8 +33,10 @@ FW_doUpdate()
     var d = lines[i].split("<<", 3);    // Complete arg
     if(d.length != 3)
       continue;
-    var el = document.getElementById(d[0]);
-    if(el) {
+
+    var elArr = document.querySelectorAll("[informId="+d[0]+"]");
+    for (var k=0; k<elArr.length; k++){
+      el = elArr[k];
       if(el.nodeName.toLowerCase() == "select") {
         // dropdown: set the selected index to the current value
         for(var j=0;j<el.options.length;j++)
@@ -114,7 +116,9 @@ FW_longpoll()
         room=sa[i];
     }
   }
-  var query = document.location.pathname+"?"+room+"&XHR=1&inform=1";
+  // Needed when using multiple FF windows
+  var timestamp = "&timestamp="+new Date().getTime();
+  var query = document.location.pathname+"?"+room+"&XHR=1&inform=1"+timestamp;
   FW_pollConn.open("GET", query, true);
   FW_pollConn.onreadystatechange = FW_doUpdate;
   FW_pollConn.send(null);
diff --git a/fhem/www/pgm2/smallscreenstyle.css b/fhem/www/pgm2/smallscreenstyle.css
index db7f04b5c..cdbf61a30 100644
--- a/fhem/www/pgm2/smallscreenstyle.css
+++ b/fhem/www/pgm2/smallscreenstyle.css
@@ -50,9 +50,6 @@ table.block tr.sel { background: #F0F0D8; }
 table.block td { width: 150px; };
 table { -moz-border-radius:8px; border-radius:8px; }
 
-table#room { display:none; }
-table#room tr.sel { background: #A0FFFF; }
-
 #menu #block { visibility: hidden; }
 #right { position:absolute; top:85px; left: 0px; right: 0px;
            font-family:Arial, sans-serif; font-size:16px; }
diff --git a/fhem/www/pgm2/style.css b/fhem/www/pgm2/style.css
index 10bb05505..1cbeefe69 100644
--- a/fhem/www/pgm2/style.css
+++ b/fhem/www/pgm2/style.css
@@ -25,14 +25,13 @@ table.block tr.odd { background: #F0F0D8; }
 table.block tr.sel { background: #F0F0D8; }
 table { border-radius:8px; }
 
-table#room { border:1px solid gray; width: 100%; background: #D7FFFF; }
-table#room tr.sel { background: #A0FFFF; }
+table.room { border:1px solid gray; width: 100%; background: #D7FFFF; }
+table.room tr.sel { background: #A0FFFF; }
 
 #right { position:absolute; top:20px; left:180px; }
 
 h2,h3,h4 { color:#52865D; line-height:1.3;
            margin-top:1.5em; font-family:Arial,Sans-serif; }
-div#block { border:1px solid gray; background: #F8F8E0; padding:0.7em; }
 div.dist { padding-top:0.3em; }
 button.dist { margin:10px; background:transparent; border:0px; cursor:pointer; }
 
diff --git a/fhem/www/pgm2/touchpadstyle.css b/fhem/www/pgm2/touchpadstyle.css
index ec8688402..862cf5e4f 100644
--- a/fhem/www/pgm2/touchpadstyle.css
+++ b/fhem/www/pgm2/touchpadstyle.css
@@ -23,8 +23,8 @@ table { -moz-border-radius:8px; border-radius:8px; }
 .col1, .col2, .col3  { padding: 8px; }
 .dname, .dval { padding: 8px; font-size: 14px; }
 
-table#room { border:1px solid gray; width: 100%; background: #D7FFFF; }
-table#room tr.sel { background: #A0FFFF; }
+table.room { border:1px solid gray; width: 100%; background: #D7FFFF; }
+table.room tr.sel { background: #A0FFFF; }
 
 div.block { border:1px solid gray; background: #F8F8E0; padding:0.7em; }
 div.dist { padding-top:0.3em; }