Double clicking functionality on classical report output.

Dear Experts,

Recently i'm facing a problem regarding the interaction on classical report output.The requirement is whenever I double click on particular sales order on the output,the va03 transaction automatically opens with corresponding sales order.can anyone please tell me how i do it?sametime I also paste my code which i coded in my report but it will not work.

at line-selection.

data: fld(30) type c,

val(30) type c.

get cursor field fld value val.

if fld = 'wa_vbap-vbeln'.

set parameter id 'AUN' FIELD fld.

call transaction 'VA03' AND SKIP FIRST SCREEN.

endif.

warm regards,

sameek.