So far, there is one sample in the distribution. This sample, called js_browser_client_simple, provides an HTML user interface to the tiny hello_world service also present in the wsdl_first sample. The HTML page for the sample is here. This gives a the flavor of an HTML page invoking a web service via the CXF JavaScript client generator.
<script type="text/javascript" src="/SoapContext/SoapPort?js"></script>
<script type="text/javascript">
var Greeter = new apache_org_hello_world_soap_http_Greeter();
Greeter.url = "/SoapContext/SoapPort";
var responseSpan;
function sayHiResponse(response)
{
    responseSpan.firstChild.nodeValue = response.getResponseType();
}
function sayHiError(error)
{
      alert('error ' + error);
}
function invokeSayHi()
{
    responseSpan = document.getElementById('sayHiResponse');
    responseSpan.firstChild.nodeValue = " - pending - ";
    Greeter.sayHi(sayHiResponse, sayHiError);
}
</script>
</head>
<body>
<h1>
Hello World Sample
</h1>
<form>
<div>
        <table>
          <tr>
            <td>Run sayHi</td>
            <td><input type="button"
                       value="invoke" name="sayHi"
                       onClick="invokeSayHi()">
          </tr>
          <tr>
            <td>sayHi response</td>
            <td><span id='sayHiResponse'>- not yet invoked -</span></td>
          </tr>
        </table>
</div>
</form>
</body>
</html>