front window broken can it be fixed?

my electric front window broke in the winter when i used it on a frosty morning(stupid i know)now i have had it checked by someone who showed me that just the wire had snapped everything else works ok now i.ve been told a few things some people say i need a regulator aswell as wire but the guy who showed me snapped wire said i would only need a wire kit(available on ebay)anyone know what is correct?