Should i buy train ticket from vienna to maribor online or at the station?

do i need to pre-buy the following train tickets online on eurorail? (it seemed to be more expensive...)



Vienna -%26gt; Maribor

Maribor -%26gt;Lj

Maribor -%26gt; Venice

Venice -%26gt; Milan



Many thanks!!!



Should i buy train ticket from vienna to maribor online or at the station?
I'd buy online if you could. Less hassle. Then compare the costs if you want.