code: public String fixedTextarea (String name, String extra, Object value)
      {
          StringBuilder buf = new StringBuilder();
          buf.append("<textarea name=\"").append(name).append("\"");
          if (!StringUtil.isBlank(extra)) {
              buf.append(" ").append(extra);
          }
          buf.append(">");
          if (value != null) {
              buf.append(value);
          }
          buf.append("</textarea>");
          return buf.toString();
      }
docs: Construct a text area with the specified name, optional extra parameters
  and the specified text.