[OpenLayers-Users] Understanding events

[Yves Moisan]

Hi List,

I'm trying to wrap my head around OpenLayers events.  Here's code that
works if I uncomment the first line (alert) :

// alert("Highlight on")

    function selectFeature(layer, fid)
    { 
            for(var i = 0; i<layer.features.length;++i)
                  {         
                        if (layer.features[i].fid == fid)
                        {         
                            FeatureSelectControl.select(layer.features[i]);
                            break;             
                        }
                  }
    }

    FeatureSelectControl = new OpenLayers.Control.SelectFeature( layers[0], {}); 
    MyMap.addControl(FeatureSelectControl);

    FeatureSelectControl.activate();

    if(oFeatures && oFeatures.length > 0)                  

        {
          var bounds = oFeatures[0].geometry.getBounds();
          
        // next line works if alert is "on"
        // selectFeature(layers[0],oFeatures[0].fid);

        // how do I register an event to wait until layer ends loading ?  Tried variations of the following commands :

        // MyMap.events.register("zoomend", layers[0], selectFeature(layers[0],oFeatures[0].fid));
        // layer.events.register("loadend", layers[0], selectFeature(layers[0],oFeatures[0].fid));

    ...

Problem is if I don't leave enough time for the layer to load, my
selectFeature function doesn't work.  

I've seen there are different event types on different OL objects, so I
tried registering events on the map and the layer objects (e.g. above),
but obviously I do not understand how the event mechanism works.  Any
tutorial on events that could help me understand events ?

TIA,

Yves