code: public boolean equalId(Element otherElement) {
  		if (getElementId() == null || otherElement.getElementId() == null) {
  			return false;
  		}
  		return getElementId().equalsIgnoreCase(otherElement.getElementId());
  	}
docs: Are both Id's the same?
  
  @param otherElement the other element to compare
  @return true if id == otherElement.id