[TYPO3-dev] Backend extension form fields question

[Cray Flatline]

Hi, All! I'm seeking answer to the noob question.

I'm creating extension with car base, where I need to have three fields
in the background.

Type
Make
Model

I want to make such thing: when I add new item in BE with this extension
(car), I choose from type for example "motorcycle", so in the Make I
will see only makes of motorcycles (honda, kawasaki etc.) but not for
automobiles (i.e. Ford, VW).  And when I choose something from Make
(i.e. Honda), I want to see in Model only Honda models.

Can I do it someway? I need to use "type-field" to reload page every
time I choose from Type or Make? Or I can make it with something like ajax?

Can anybody give me right direction to see/read/seek? (:

Thanks a lot!
Cray Flatline