I have one question about passing strings from one Ext.formPanel textfield to another part of the code. The thing is that I have two "textfield" in the formPanel and I want the words I enter there as part of the "url" I have in the code. Probably you may ask, why does this guy want that?? this is because the "url" I'm using has a PHP script that generates features stored in a postgis db table as GeoJSON.

This the code:

// define the data source
     var protocol = new OpenLayers.Protocol.HTTP({
         url:  "http://localhost/postgis_geojson.php?geotable=boreholes_point_wgs84&geomfield=geom&parameters="  + "column" + ilike '%"string"%',
         format: new OpenLayers.Format.GeoJSON({
             ignoreExtraDims: true,
             'internalProjection': new OpenLayers.Projection("EPSG:900913"),
             'externalProjection': new OpenLayers.Projection("EPSG:4326")
     formPanel = new GeoExt.form.FormPanel({
         title: "Place Name Search",
         height: 150,
         region: "north",
         protocol: protocol,
         items: [{
             xtype: "textfield",
            id: "column",
             emptyText: "Choose table column",
             fieldLabel: "Choose table column",
             width: 200,
             allowBlank: false
         }, {
             xtype: "textfield",
            id: "string",
             emptyText: "Search inside table",
             fieldLabel: "Enter a word to search",
             width: 200,
             allowBlank: false
         listeners: {
             actioncomplete: function(form, action) {
                 features = action.response.features;
                     vecLayer = new OpenLayers.Layer.Vector("Results");
  buttons: [{text: 'search',
             handler: function(){
         keys: [{ key: [Ext.EventObject.ENTER],
             handler: function() {
These are the cases I already tested:

1. url: "http://localhost/postgis_geojson.php?geotable=boreholes_point_wgs84&geomfield=geom": this generates the whole table "boreholes_point_wgs84" as GeoJSON.
2. url: "http://localhost/postgis_geojson.php?geotable=boreholes_point_wgs84&geomfield=geom&parameters=station ilike '%llena%'": this generates only one feature, the feature that has "llena" in the "station" column. So, in this way I can find the feature through the search form.

What I was thinking is if I can pass these two strings I enter in "textfield" and modify the "url" in the way that it can catch these two words and form, for example, the second case I put above. I was playing with this:

url: "http://localhost/postgis_geojson.php?geotable=boreholes_point_wgs84&geomfield=geom&parameters=" + "column" + ilike '%"string"%',

so using the "id" I specified below each xtype, but it doesn't work.

I appreciate any support on this, thanks in advance,

Best regards,