[mapserver-users] Multiple Filter options. WMS Service

[NN SS]

Hi.

I'm using wms service to load layers in openlayers. This works fine, but I
have a problem.
I need to use different filters options to load data. I need a dynamic
filter

My layer is some like this :
***********
   LAYER
        NAME "Polizas"
        STATUS ON
        CONNECTION "polizas.ovf"
        CONNECTIONTYPE OGR
        DATA "polizas"
        TYPE POINT
        METADATA
            "wms_name" "Polizas"
            "wms_server_version" "1.1.1"
            "wms_format" "image/png"
            "wms_transparent" "true"
        END
        FILTER (([cod_suc] eq %CODSUC%) and ([cod_ramo] eq %CODRAMO%) and
([cod_lin_business] eq %CODLINEA%) and ("[geoestado]" eq "%GEOESTADO%") and
("[txt_municipio]" eq "%CIUDAD%" ) )
        CLASS
           STYLE
               SYMBOL 'circle'
               SIZE 8
               COLOR 255 255 0
               OUTLINECOLOR 0 0 0
           END
        END
    END
*************

I some cases I need all filter options :
        FILTER (([cod_suc] eq %CODSUC%) and ([cod_ramo] eq %CODRAMO%) and
([cod_lin_business] eq %CODLINEA%) and ("[geoestado]" eq "%GEOESTADO%") and
("[txt_municipio]" eq "%CIUDAD%" ) )
but other cases I need 2 parameters or 3 parameters
        FILTER (([cod_suc] eq %CODSUC%) and ([cod_ramo] eq %CODRAMO%) )
        FILTER (([cod_suc] eq %CODSUC%) and ([cod_ramo] eq %CODRAMO%) and
([cod_lin_business] eq %CODLINEA%) )
or 1 parameter :
        FILTER (([cod_suc] eq %CODSUC%) )

How can I do this?

Thanks for your help.

Regards

Nelson S.
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