code: public String assembleId(String id, String... suffixes) {
  		StringBuilder sb = new StringBuilder();
  		if (null != id) {
  			sb.append(id);
  		}
  		for (String s : suffixes) {
  			sb.append(Dom.ID_SEPARATOR);
  			sb.append(s);
  		}
  		return sb.toString();
  	}
docs: Assemble an DOM id.
  
  @param id
  base id
  @param suffixes
  suffixes to add
  @return id