I'm working on an ASP.NET app where I'm in need of jQuery AutoComplete. Currently there is nothing happening when I type data into the txt63 input box (and before you flame me for using a name like txt63, I know, I know... but it's not my call :D ).

Here's my javascript code

        <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js" type="text/javascript"></script>
        <script src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.1/jquery-ui.min.js" type="text/javascript"></script>
        <script src="http://jquery-ui.googlecode.com/svn/tags/latest/external/jquery.bgiframe-2.1.1.js" type="text/javascript"></script>
        <script src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.1/i18n/jquery-ui-i18n.min.js" type="text/javascript"></script>
                <script language="javascript" type="text/javascript">

                    var theSource = '../RegionsAutoComplete.axd?PID=<%= hidden62.value %>'
                    $(function () {
                        $('#<%= txt63.ClientID %>').autocomplete({
                            source: theSource,
                            minLength: 2,
                            select: function (event, ui) {
                                $('#<%= hidden63.ClientID %>').val(ui.item.id);
                            }
                        });
                    });

and here is my HTTP Handler

Namespace BT.Handlers
    Public Class RegionsAutoComplete : Implements IHttpHandler
        Public ReadOnly Property IsReusable() As Boolean Implements System.Web.IHttpHandler.IsReusable
            Get
                Return False
            End Get
        End Property

        Public Sub ProcessRequest(ByVal context As System.Web.HttpContext) Implements System.Web.IHttpHandler.ProcessRequest
            'the page contenttype is plain text
            context.Response.ContentType = "application/json"
            context.Response.ContentEncoding = Encoding.UTF8

            'set page caching
            context.Response.Cache.SetExpires(DateTime.Now.AddHours(24))
            context.Response.Cache.SetCacheability(HttpCacheability.Public)
            context.Response.Cache.SetSlidingExpiration(True)
            context.Response.Cache.VaryByParams("PID") = True

            Try
                ' use the RegionsDataContext
                Using RegionDC As New DAL.RegionsDataContext

                    ' query the database based on the querysting PID
                    Dim q = (From r In RegionDC.bt_Regions _
                            Where r.PID = context.Request.QueryString("PID") _
                           Select r.Region, r.ID)

                    ' now we loop through the array
                    ' and write out the ressults

                    Dim sb As New StringBuilder
                    sb.Append("{")
                    For Each item In q
                        sb.Append("""" & item.Region & """: """ & item.ID & """,")
                    Next
                    sb.Append("}")
                    context.Response.Write(sb.ToString)
                End Using

            Catch ex As Exception
                HealthMonitor.Log(ex, False, "This error occurred while populating the autocomplete handler")
            End Try
        End Sub


    End Class
End Namespace

The rest of my ASPX page has the appropriate controls as I had this working with the old version of the jQuery library. I'm trying to get it working with the new one because I heard that the "dev" CDN was going to be obsolete.

Any help or direction will be greatly appreciated.