repoSelector.addChangedHandler(new ChangedHandler() {
public void onChanged(ChangedEvent event) {
final Integer repoId = Integer.valueOf(event.getItem().getValue().toString());
config.setSelectedRepo(repoId);
PackageCriteria pc = new PackageCriteria();
pc.addFilterRepoId(repoId);
pc.addFilterPackageTypeId(cliScriptPackageType.getPackageType().getId());
packageSelector.setDisabled(false);
existingPackageSelector.setDisabled(true);
existingPackageSelector.setValueMap(MSG.common_msg_loading());