maintain focus on the field when save the form using field onchange

hi frnds,

         i have called the save event in field onchange... when  the form save, scroll is going upwards.So again i need to search a field which i click.. so i need a solution to keep the focus on the same field after save called for the form..Pls give me a solution as soon as possible.

      Thanx in advance..

Arun Kumar G