var config = {
    map: {
        '*': {
            preview_form : 'Magetop_Advancepreview/js/preview_form',
            preview_discount_form : 'Magetop_Advancepreview/js/discount_form',
            preview_additional_form : 'Magetop_Advancepreview/js/additional_form',
        }
    }
};
