Registering javascript on asynchronous postback

I have an asp.net button wrapped inside of an UpdatePanel, and when clicked it does an asynchronous postback and registers some javascript that shows a jquery dialog.

protected void btnAddData(object sender, EventArgs e) {
    StringBuilder jqueryDialog = new StringBuilder();
    jqueryDialog.Append("$(document).ready(function() {");
    jqueryDialog.Append("RefreshData();");
    jqueryDialog.Append("$('#divData').dialog({ modal: false, draggable: true, title: 'Historical Data', width: 700 });");
    jqueryDialog.Append("});");

    ScriptManager sm = ScriptManager.GetCurrent(this);
    if (sm != null && sm.IsInAsyncPostBack) {
        ScriptManager.RegisterClientScriptBlock(
            this, typeof(Page), Guid.NewGuid().ToString(),
            jqueryDialog.ToString(), true);
    }
}

As you can see the javascript first calls a function named RefreshData(), which function exists in my markup as javascript.

<script type="text/javascript" language="javascript">
    if ($) {
        $(document).ready(function () {
            function RefreshData() {
                alert("Data Refreshed!");
            }
        });
    }
</script>

However, Firefox is giving an error that says the RefreshData is not defined. Does that mean any javascript that I register on an asynchronous postback will be unable to use javascript functions that I have defined in my markup?

Thanks for the help.

Don't define the RefreshData function inside the document.ready function which is an anonymous callback. Define it outside so that it is accessible to the outside:

<script type="text/javascript">
    if (typeof($) != 'undefined') {
        function RefreshData() {
            alert("Data Refreshed!");
        }
    }
</script>

Also you probably don't need to wrap in a document.ready your server side include:

StringBuilder jqueryDialog = new StringBuilder();
jqueryDialog.Append("RefreshData();");
jqueryDialog.Append("$('#divData').dialog({ modal: false, draggable: true, title: 'Historical Data', width: 700 });");