How to set a property dynamically using javascript on oTable

I have a page with many DataTable objects in it. They all have a class "testAbcd" associated with them.

I am able to get all these objects using document.getElementsByClassName("testAbcd").

I am then iterating over these objects and need to set the value of the attribute 'sPaginationType' dynamically based on some conditions.

How can I achieve this? i.e. set the value of an attribute on the DataTable object.

Thanks