[OpenLayers-Users] How to use cql_filter in OpenLayers.Control.WMSGetFeatureInfo?

[Asle Benoni]

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 = '<img
src="/images/svg/bab_'+status+'.svg" width="10" />'; // Conditionally
show a (status) icon in the popup
                              contentHtml = contentHtml + '<h2>' +
scientificname +' '+ statusimg + '</h2>';
                              contentHtml = contentHtml +norsknavnart
+ norsknavngruppe + ' Reg.dato: ' + dateinterval + '<br/>';
                              contentHtml = contentHtml + kommentar +
' Reg. av: ' + collector + '<br />';
                              contentHtml = contentHtml + '<span
class="popItem"><a
href="http://babkart.no/?x='+feature.attributes['x']+'&y='+feature.attributes['y']+'">Direkte
link</a> til dette artsfunn.</span><hr />';
                              }
                      }
                  } 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