<script>
// access EC2 demo instance
http = new XMLHttpRequest();
http.withCredentials = true;
http.open("POST", "http://as7-preview.dyndns.org:9990/management", true);

// async response handler
http.onreadystatechange =function()
{
    if (http.readyState==4 && http.status==200)
    {
        // decode response
        response = dmr.ModelNode.fromBase64(http.responseText);
        alert(response.get("result").asString());
    }
}

// content type headers for DMR API
http.setRequestHeader("Content-type","application/dmr-encoded");
http.setRequestHeader("Accept","application/dmr-encoded");

// create an operation
op = new dmr.ModelNode();
op.get("operation").set("read-attribute");
op.get("address").setEmptyList();
op.get("name").set("release-version");

// send as base64 encoded
http.send(op.toBase64String());

</script>