code: public void addParameter(String name, Object value, String facet)
              throws JspException {
          ParamHelper.addParam(_imageAnchorCellModel.getParams(), name, value);
      }
docs: <p>
  Implementation of the {@link IUrlParams} interface.  This allows this tag to accept &lt;netui:parameter&gt;
  and &lt;netui:parameterMap&gt; in order to add URL parameters onto the rendered anchor.  For example:
  <pre>
  <netui-data:imageAnchorCell href="foo.jsp" src="foo.png">
  <netui:parameter name="paramKey" value="paramValue"/>
  </netui-data:anchorCell>
  </pre>
  will render an HTML image anchor as:
  <pre>
  <a href="foo.jsp?paramKey=paramValue><img src="foo.png"/></a>
  </pre>
  </p>
  @param name the name of the parameter
  @param value the value of the parameter
  @param facet the facet for the parameter
  @throws JspException thrown when the facet is unsupported