[mapserver-users] Simple question

[Ricardo Vilella]

Hi all, is the first time I use the list. I detail my work environment:

* Debian Lenny
* Mapserver version 4.6.1 OUTPUT=GIF OUTPUT=PNG OUTPUT=JPEG OUTPUT=WBMP
OUTPUT=PDF OUTPUT=SWF OUTPUT=SVG SUPPORTS=PROJ SUPPORTS=AGG SUPPORTS=CAIRO
SUPPORTS=FREETYPE SUPPORTS=ICONV SUPPORTS=WMS_SERVER SUPPORTS=WMS_CLIENT
SUPPORTS=WFS_SERVER SUPPORTS=WFS_CLIENT SUPPORTS=WCS_SERVER
SUPPORTS=SOS_SERVER SUPPORTS=THREADS SUPPORTS=GEOS INPUT=TIFF INPUT=EPPL7
INPUT=POSTGIS INPUT=OGR INPUT=GDAL INPUT=SHAPEFILE
* Apache 2.2.9
* OpenLayers 2.9.1

For the moment I have 4 layers that are loaded according to the zoom level:

layer 1: polygon - country
layer 2: line - country limits
layer 3: polygon - Province
layer 4: line - Province boundaries

The problem is when load the layer 3 and 4, the lines of the layer 1 and 2
that overlap are indistinguishable. The reference of the boundaries of the
layer 1 and 2 are lost. Look in the documentation but not found a
configuration that solved the problem. I tried with the OPACITY property but
don't work out. Sorry for my english, any help is welcome.
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