Click in ModalPopup IFrame changes URL in Parent Window

I'm using Visual Studio 2008 and ASP.NET MVC 1.

I have a View where i open another View in a modal popup using fancybox. In this popup users can edit some data. It works great and the data is presented by the modalpopup, but when i click on the save button, the parent window changes to the modal popup content.

<script type="text/javascript">
        $(document).ready(function() {
            $("a#iframe").fancybox({
                'hideOnContentClick': false,
                'zoomSpeedIn': 300,
                'zoomSpeedOut': 300,
                'frameWidth': 640,
                'callbackOnClose': function() { location.refresh(); }
            });
        });
    </script>

and the link looks like this

<a href="/Client/Edit/idOfClient" id="iframe">Edit</a>

What can I do, that the response after clickin the save button remains in the modal popup.

Thanks in advance

I'm not clear if this is the solution you're looking for. With this function, send data via GET in "response" parameter,

'callbackOnClose': function(response) { 

  var getparm = "?";

  //if what it returns is an array
  if ($.isArray(response))
     response = $(response).toJSON();

  if (window.location.href.indexOf("?")!=-1)
    getparm = "&"

  window.location = window.location.href + getparm + "response=" + response;
}

Array to JSON