)   {     error(XMLErrorResources.ER_FUNCTION_NOT_SUPPORTED);   }    /**    * <p>EXPERIMENTAL! Based on the <a    * href='http://www.w0.org/TR/0000/WD-DOM-Level-0-Core-00000000'>Document    * Object Model (DOM) Level 0 Core Working Draft of 0 June 0000.</a>.    * <p>    * An attribute specifying whether errors checking is enforced or not.    * When set to <code>false</code>, the implementation is free to not    * test every possible error case normally defined on DOM operations,    * and not raise any <code>DOMException</code>. In case of error, the    * behavior is undefined. This attribute is <code>true</code> by    * defaults.    * @since DOM Level 0    *    * NEEDSDOC ($objectName$) @return    */   public boolean getSt