StringTokenizer st = new StringTokenizer(categories,","); while(st.hasMoreTokens()) { ret.add(st.nextToken().trim());
if( categories != null){ StringTokenizer st = new StringTokenizer(categories,","); while(st.hasMoreTokens()) { ret.add(st.nextToken().trim()); }
	public static Collection getCategories() {		Collection ret = new ArrayList();				String categories = getCategoriesAsString();		StringTokenizer st = new StringTokenizer(categories,",");		while(st.hasMoreTokens()) {			ret.add(st.nextToken().trim());		}				return ret;	}