[Trinidad] ShuttleProxy example?

[Bertrand, Shawn]

I'm looking for an example (even a simple one) of the use of the
ShuttleProxy.  I'm attempting to customize the display of items in the
trailing list, and I can't even correctly instantiate a ShuttleProxy
instance.
 
Here is my jsp:
 
<f:view>
<trh:html>
<trh:head title="#{pageFlowScope.pageTitleHeader}">
   <f:verbatim>
      <script type="text/javascript">
         function toggleService(serviceName)
         {
             // Create the proxy object
             var proxy = new ShuttleProxy("pick", "psapDetail");
             var arr = proxy.getSelectedItems(false);
             alert('Selected count is
'+proxy.getSelectedItemCount(false));
             alert('Available count is '+proxy.getItemCount(true));
             for (var i=0;i<arr.length;i++)
             {
                 alert('Applying '+serviceName+' to
'+proxy.getSelectedItems(false));
                 alert(arr[i]);
             }
             alert('Applying '+serviceName+' to
'+proxy.getSelectedItems(false));
         }
      </script>
  </f:verbatim>
</trh:head>
<trh:body>
<tr:form id="psapDetail"
defaultCommand="#{pageFlowScope.autoSubmitName}">
.
.
                <tr:commandButton id="rumEavesBtn" text="RE"
onclick="toggleService('RE');"
 
rendered="#{PSAPDeviceHelper.sysMonButtonRendered}" />
.
.
</tr:form>
</trh:body>
</trh:html>
</f:view>

Any ideas as to what I'm doing wrong?
 
Thanks in advance,
Shawn Bertrand, Principal Software Developer
HARRIS CORPORATION   |   RF Communications Division 
 
assuredcommunications(tm)