You could add this functionality by using the same DHTML approach.

通过使用相同的DHTML方法可以添加该功能。

youdao

Using DHTML, you can access the information in a form field, or even change it.

使用DHTML可以访问甚至修改表单字段的信息。

youdao

Using DHTML, you can access the information in a form field, or even change it.

使用DHTML可以访问甚至修改表单字段的信息。

youdao