labelVectorLayer= new SuperMap.Layer.Vector("labelVectorLayer",{strategies: [strategy]});
map.addLayers([labelVectorLayer]);
var callbacks={
click: function(currentFeature){
alert(1);
}
};
selectFeature = new SuperMap.Control.SelectFeature(labelVectorLayer, { callbacks: callbacks });
map.addControl(selectFeature);
selectFeature.activate();