Filter repeater list by specific category

Hi there,

I'm trying to put 4 repeaters on a page, each one I want to display the same document type but each one display only those that match the selected category name.

I was hoping i could use a WHERE condition and say something like:

category='iphones' or categorycodename='iphones'

Is this possible? I'm not good at macros and the like, I need the list to be links to the documents so i wanted a repeater that i can control the links and transformations.

Thank you

Jon