dwr notification to iframe

Hi,  

I'm new to dwr and am having difficulty with notifications to an iframe.  I have an app which is being served by jetty, on it's own it works and I receive notifications using reverse ajax with no problem.

  The snag is that I need to embed this app in another page, using frames.  This other page is served by IIS.  When I do this it does not work.  From my googling it appears I may be able to use dwr.engine.ScriptTag to get around this, but haven't found a good example of how to configure this to work.  Can anyone help me out and show how I can configure it to work for my setup.

Thanks
T