Plz. Help me..about EPCFPROXY.js

Question

I hava a BSP application for communcating each BSP iviews.
I had downloaded the epcfproxy.js from EP 6.0 and
imported the file(epcfproxy.js) in my BSP Applications
<htmlb:content design="design2003">
  <htmlb:page title = " ">
    <script src="epcfproxy.js"></script>
    <script>
        var lnDotPos = document.domain.indexOf(".");
        if (lnDotPos >= 0) document.domain = document.domain.substr( lnDotPos + 1 );
        function showEPCMdata() {
            var data = "";
            data = EPCMPROXY.getUAType();
            alert("hello!" + data);
    </script>
    <htmlb:form>
      <htmlb:button text = "Press Me"
                    onClientClick = "showEPCMdata();"
                    onClick = "myClickHandler" />
    </htmlb:form>
  </htmlb:page>
</htmlb:content>
The BSP Appcation in EP 6.0 popup "hello!null" when I click the "Press Me" button.
what is the Problem?
Pleas help me...

Answer 1

i havent used bsp:portal* elements but my guess is that at the backend they would be using EPCF JS.
EPCF is mainly for portal eventing.
with EPCF you can do both raise and subscribe.
this is how you will subscribe to event using EPCF
EPCMPROXY.subscribeEvent("urn:com.sap:BWEvents","BWiViewevent", window, "myreceiveEvent");
and for raising
EPCMPROXY.raiseEvent( "urn:com.sap:BWEvents","BWiViewevent", value1, null );
We tested with these things and it works fine., but somewhere in SDN i have read (weblog? article?) that for complex navigatin do not use EPCF. And we also felt that for complex navigation (which is true in our case) its becoming more difficult to manage .
Our original idea was to use a BSP application/page in dynamic navigation area and communicate with content aread BSP application/page via EPCF. becase of what i said earlier , we have decided to not to use dynamic navigation area and the whole iview is one BSP application and total eventing control is within our application.
Regards
Raja
PS: if you are interested i an quickly write up a small blog on how to use Portal eventing using EPCF in BSP application.