[Users] Help... Get WFS Feature

[Saha Aswina]

Dear everybody,

I am new to using GeoExt and OpenLayers. I want to get list of feature in my layer, I am using example from http://workshops.opengeo.org/geoext/wfs/grid.html But it doesn't work to me to get from my MapServer WFS. This is my code:

            var store = new GeoExt.data.FeatureStore({
                fields: [
                    {name: "nama_kecam", type: "string"}
                ],
                proxy: new GeoExt.data.ProtocolProxy({
                    protocol: new OpenLayers.Protocol.WFS({
                        url: "/cgi-bin/mapserv?MAP=/home/dharmawa/www/map_file/fix.map",
                        version: "1.1.0",
                        featureType: "kecamatan",
                        featureNS: "http://medford.opengeo.org",
                        srsName: "EPSG:32749"
                    })
                }),
                autoLoad: true
            });

            var gridPanel = new Ext.grid.GridPanel({
                title: "Feature Table",
                region: "center",
                viewConfig: {forceFit: true},
                store: store,
                cm: new Ext.grid.ColumnModel({
                    defaults: {
                        sortable: true
                    },
                    columns: [
                        {header: "Name", dataIndex: "nama_kecam"}
                    ]
                })
            });

but the grid panel is empty, whats wrong?? No error displayed in firebug.
the page: http://www.dharmawan.web.id/map2.php