XML Forms Builder : Change Date - Calendar Language

Hello,

Our system is SapNetweaver 7.31 SPS05.

We are using XML Form Builder.

When we select any project, for example, "SAP Demo News" all the forms and text are translated to Portuguese. But when we select Date form, the calendar, the name of the months and days are not translated.

The IE and user Language is set to Portuguese.

In attach an capture of the issue.

How can we change the language of calendar using XML Forms Builder ?

Thanks in advance,

Best Regards,

Verónica Seca