Help me

Hi Experts,

i have coded like this. But this condition is not working fine. how to code it?

if cdpos-tabname eq 'DMAKT'

or cdpos-tabname eq 'MARA'

or cdpos-tabname eq 'MAKT'.

do something...

elseif cdpos-tabname ne 'DMAKT'

or cdpos-tabname ne 'MARA'

or cdpos-tabname ne'MAKT'.

do something.

else.

do something.

endif.