control.registerJavascriptEvent(map, "featureselected",
new Model<String>("vec" + select.getId() + ".addFeatures([evt.feature]);"));
control.registerJavascriptEvent(map, "featureunselected",
new Model<String>("vec" + select.getId() + ".removeFeatures([evt.feature]);"));
control.registerJavascriptEvent(map, "hoverfeature",
new Model<String>("vec" + hover.getId() + ".addFeatures([evt.feature]);"));
control.registerJavascriptEvent(map, "outfeature", new Model<String>("vec" + hover.getId() +
".removeFeatures([evt.feature]);"));
add(map);