code: protected final void applyIndexedTagId(AbstractHtmlState state, String tagId)
          throws JspException {
          state.id = indexTagId(generateTagId(tagId));
      }
docs: Create an indexed tag identifier given a state object and a base tag identifier.  The <code>tagId</code>
  will have the index of the current item in the data grid attached as a suffix to the
  the given base identifier.
  @param state the {@link AbstractHtmlState} upon which the tag identifier will be set once created
  @param tagId the base tag identifier name
  @throws JspException