code: function( input, null_text ) {
  		if ( input == null || input === undefined ) return null_text || '';
  		if ( typeof input === 'object' && Object.prototype.toString.call(input) === '[object Date]' ) return input.toDateString();
  		if ( input.toString ) return input.toString().replace(/\n/g, '<br />').replace(/''/g, "'");
  		return '';
  	}
docs: Converts response to text.