code: public List<String> all(String localName) {
  		List<String> childrenText = new ArrayList<String>();
  		for (Element child : children()) {
  			if (localName.equals(child.getLocalName()) && XCAL_NS.equals(child.getNamespaceURI())) {
  				String text = child.getTextContent();
  				childrenText.add(text);
  			}
  		}
  		return childrenText;
  	}
docs: Gets the values of all child elements that have the given name.
  @param localName the element name
  @return the values of the child elements