Any help: Inter-related product attributes?

[ciDfenmaria]

Hello all,

 

I am a osC user and looking for help. Is there any solution to implement the relationships to the product attributes?

 

For example: A product in our store have different size and each size correspond to it several models. In the product page, when a size option value is selected from the size pull down menu, the model pull down menu below will change accordingly to this size's models available.

 

I'm not quite a technical person so looking for help. Is there any solution done for this or similar thing before? Thanks for all of you.