code: public void setStyleClass(String styleClass)
      {
          if ("".equals(styleClass))
              return;
          AbstractHtmlState tsh = getState();
          tsh.styleClass = styleClass;
      }
docs: Sets the style class of the rendered html tag.
  @param styleClass the html style class.
  @jsptagref.attributedescription The style class (a style sheet selector).
  @jsptagref.databindable false
  @jsptagref.attributesyntaxvalue <i>string_styleClass</i>
  @netui:attribute required="false"  rtexprvalue="true"
  description="The style class (a style sheet selector)."