[OpenLayers-Users] SLD based selection on WMS layers - How to set the new style of clicked point?

[Shadin]

I'm trying to follow this example:
http://openlayers.org/dev/examples/SLDSelect.html

When I click on the point, its color should be changed, here is a piece of
my code: 

control =  new OpenLayers.Control.SLDSelect( 
                    OpenLayers.Handler.Click, 
                    { 
                        //displayClass: 'olControlClick', 
                        layers: [city] 
                    } 
                ) 

                map.addControl(control); 
                 control.activate(); 


Still can't figure out what's the point of displayClass. and how to assign
the new color. 



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