geoserver - How to use cql_filter in OpenLayers.Control.WMSGetFeatureInfo?

I am a newbie and I am using OpenLayers, GeoServer 2.1.3. I have a function that works to filter the markers on the map with a CQL_FILTER function. But when I click on a marker it shows a popup with featureInfo information. If there are hidden markers on the same coordinate (from the CQL_FILTER function) every marker shows a popup, even if I have filtered them out (I thought until now that is!) .

So I expect after what I have researched that I also need to filter the getFeatureInfo click that sends the cql_filter with the WMS call. The markers are on the same layer but I only want a popup to fire on the filtered markers. Any advice to where I start would be be appreciated. Here is my function that redraws the layers with the params from a search box. So how do I use this also in my click event?

function CQLfilter(sok,cat){
var mLayers = map.layers;

switch (cat)
{
case 'SN':
 param = "scientificname LIKE '%"+ sok + "%' ";
 break;
case 'NNG':
 param = "norsknavngruppe LIKE '%"+ sok + "%' ";
 break;
case 'NNA':
 param = "norsknavnart LIKE '%"+ sok + "%' ";

 break;
case 'PROJ':
 param2 = new Array()
 param2.push("prosjektnummer LIKE '%" + sok + "%'")
 param2.push("prosjektnavn LIKE '%" + sok + "%'")
 param = param2.join(" OR ");
 break;
default:
 param2 = new Array()
 param2.push("scientificname LIKE '%" + sok + "%'")

 param2.push("norsknavngruppe LIKE '%" + sok + "%'")
 param2.push("norsknavnart LIKE '%" + sok + "%'")
 param2.push("collector LIKE '%" + sok + "%'")
 param = param2.join(" OR ");
 break;
}
for(var a = 4; a < (mLayers.length); a++ ){
 mLayers[a].mergeNewParams({'CQL_FILTER': param});
 mLayers[a].setVisibility(true);
}}

### FROM HERE IS WHERE I NEED HELP!!

Here is my code that generates the popup and the wmsGetFeatureInfo. I guess it is here I must also do some kind of filtering on the wms request but not sure how to do it. How and where do I use the code from the CQLfilter function?

         info = new OpenLayers.Control.WMSGetFeatureInfo({
         url: 'http://kart.naturkart.no/geoserver/wms',
         title: 'Identify features by clicking',
         queryVisible: true,
         infoFormat:'application/vnd.ogc.gml',
         eventListeners: {
             getfeatureinfo: function(event) {

                 if (popup) {
                     map.removePopup(popup);
                 }
                 var contentHtml = '';
                 // Manage the features
                 if (event.features.length > 0) {
                     for (var i = 0; i < event.features.length; i++) {
                         var feature = event.features[i];
                         // Identify the type
                         if (feature.gml.featureType ==

'ikke_rodlistet' || feature.gml.featureType == 'kritisk_truet' ||
feature.gml.featureType == 'nar_truet' || feature.gml.featureType ==
'regionalt_utdodd' ||
                                 feature.gml.featureType == 'saarbar' ||
                                 feature.gml.featureType == 'sterkt_truet') {
                             // Create HTML content for this feature type
                             // Fetch the feature attributes and some
conditional output of the popup - could be useful to someone :-)
                             var locality = feature.attributes['locality'];
                             country = feature.attributes['country'];

                             scientificname =
feature.attributes['scientificname'];
                             kingdom = feature.attributes['kingdom'];
                             norsknavnart =
feature.attributes['norsknavnart']!= null ?
feature.attributes['norsknavnart'] + ' | ':'';
                             norsknavngruppe =
feature.attributes['norsknavngruppe']!= null?
feature.attributes['norsknavngruppe'] + ' | ':'';
                             collector =  feature.attributes['collector'];

                             kommentar =
feature.attributes['kommentar']!= null?
feature.attributes['kommentar'] + ' | ':'';
                             dateinterval = feature.attributes['dateinterval'];
                             status = feature.attributes['status'];
                             statusimg = 'src="http://localhost/images/svg/bab_'+status+'.svg" width="10" />'; // Conditionally
show a (status) icon in the popup
                             contentHtml = contentHtml + '
' +
scientificname +' '+ statusimg + '
';

                             contentHtml = contentHtml +norsknavnart
+ norsknavngruppe + ' Reg.dato: ' + dateinterval + '
';
                             contentHtml = contentHtml + kommentar +
' Reg. av: ' + collector + '
';
                             contentHtml = contentHtml + 'class="popItem">href="http://babkart.no/?x='+feature.attributes['x']+'&y='+feature.attributes['y']+'">Direkte
link til dette artsfunn.
';
                             }
                     }

                 } else {
                     // Don't show any popup if no features.
                     return; alert(map.getLonLatFromPixel(event.xy));
                 }
                 var popup = new Popup(
                         "chicken",
                         map.getLonLatFromPixel(event.xy),
                         null,
                         contentHtml,
                         null,

                         true
                         );
                 popup.autoSize = true;
                 map.addPopup(popup, true);
                 Ext.ux.Lightbox.register("a[rel^=lightbox]",true);
             }
         }
     });
     map.addControl(info);
     info.activate();

~asle benoni

Answer

did you pass the CQL filter to the WMS GetFeatureInfo request too? If not then any record in the whole dataset at that location will be returned.