dhtmlxWindow and Layout

Hi,
I have a problem:

I want to put a layout in my window, but it doesn’t work. I can see zhe window - that works but no Layout and no text …

my code:

<html>
<head>
<link rel="STYLESHEET" type="text/css" href="../codebase/dhtmlx.css">
<link rel="stylesheet" type="text/css" href="dhtmlxWindows/codebase/dhtmlxwindows.css">
<link rel="stylesheet" type="text/css" href="dhtmlxWindows/codebase/skins/dhtmlxwindows_dhx_skyblue.css">
<link rel="stylesheet" type="text/css" href="dhtmlxLayout/codebase/dhtmlxlayout.css">
<link rel="stylesheet" type="text/css" href="dhtmlxLayout/codebase/skins/dhtmlxlayout_dhx_skyblue.css">
<script src="dhtmlxWindows/codebase/dhtmlxcommon.js"></script>
<script src="dhtmlxWindows/codebase/dhtmlxcontainer.js"></script>
<script src="dhtmlxWindows/codebase/dhtmlxwindows.js"></script>
<script src="dhtmlxLayout/codebase/dhtmlxcommon.js"></script>
<script src="dhtmlxLayout/codebase/dhtmlxcontainer.js"></script>
<script src="dhtmlxLayout/codebase/dhtmlxlayout.js"></script>
<script src="dhtmlxLayout/codebase/patterns/dhtmlxlayout_pattern4e.js"></script>
</head>
<body>
<script>
var dhxWins = new dhtmlXWindows();
var win = dhxWins.createWindow("1","10","9","250","250");
dhxWins.window("1").setText("hello world");
dhxWins.window("1").centerOnScreen();

dhxWins.window("1").attachLayout("4E","dhtmlxlayout_dhx-skyblue");
</script>
</body>
</html>

I tried also to put Text into the window, but that doesn’t worked too …

thanlk you for your help