having same name aginst different document no , I want total amount

hi ababer's ,

I have a query , at output ,  having same name aginst different document no   , I want total amount .

for eg. having doc no 1000 and 1001 ( which is not to be print in o/p )

      name                  amount  

        xyz                     2000 

        xyz                     4000

(name and amount which is to be print in output ).

     final output should be,

    name                   amount

     xyz                      6000

please help me .

Regards

Navin .