[OpenLayers-Users] control layers of GetFeatureInfo

[truongxuan quang]

Hello list 

I am doing WMSGetFeatureInfo for search following this example 
http://openlayers.org/dev/examples/getfeatureinfo-popup.html every thing are ok. 
My question is how to select only some layers per each time I click to the map 
for querying because my map I am implementing now is more than 20 layers of 
vectors map.
Do you know there are some example or any ideas please help me

Thanks

Quang
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