code: public String elementCachingHash() {
  
          String result = "";
          if (m_element != null) {
              result = m_element.editorHash();
              if (m_container != null) {
                  result += "w:"
                      + m_container.getWidth()
                      + "cName:"
                      + m_container.getName()
                      + "cType:"
                      + m_container.getType();
              }
          }
          return result;
      }
docs: Returns a caching hash specific to the element, it's properties and the current container width.<p>
  
  @return the caching hash