* @param categoryName The category to which the radio will be added. Created if it does not exists.
* @param radioName The name of the radio.
* @param radioUrl The url of the radio.
*/
public void addRadio(String categoryName, String radioName, String radioUrl) {
CategoryRadioItem parentCategory = (CategoryRadioItem) _rootCategory.getChild(categoryName);
if (parentCategory == null) {
parentCategory = new CategoryRadioItem(_rootCategory, categoryName);
_rootCategory.add(parentCategory);
}
RadioItem newRadio = new RadioItem(parentCategory, radioName, radioUrl);
parentCategory.add(newRadio);
}