code: function(options) {
        inputEx.Textarea.superclass.setOptions.call(this, options);
        this.options.rows = options.rows || 6;
        this.options.cols = options.cols || 23;
        
        // warning : readonly option doesn't work on IE < 8
        this.options.readonly = !!options.readonly;
     }
docs: Set the specific options (rows and cols)
  @param {Object} options Options object as passed to the constructor