Changing cck fields on content page edit with taxonomy

How can I change the field options on a page edit with taxonomy terms, like week 1 , you have some cck fields configurated a certain way, week 2 you have another set of fields, all displayed by Ajax, so when you are saving a page ,开发者_StackOverflow社区 it updates a specified ulr content with the term you have selected.

Taxonomy = Week 1

--Some text field content--

Taxonomy = week 2

--Some other field content--

ect..

Thank you

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I've been given the answer, "conditional fields" module. YESS!