$this->setMethod('post')
			 ->addElement('textarea','myField',
				array(
//				'label'=>'myField',
				'cols'=>'73',
				'rows'=>'7',
			 ))
			->addDisplayGroup(array('myField'), 'mitteil', array('legend'=>'Ihre myField'));
	   $this->getElement('myField')->setAutoInsertNotEmptyValidator(false);
	   $this->getElement('myField')->setRequired(false);