custom function module for custom idoc

Hi folks,

my requirement is jdbc to idoc.I completed the PI part i.e data is passing from oracle through PI ,but not posting on ECC. Actually i wan't to write a Function module in ECC for two fields. will anyone please share me the code for Function module.The fields are Emp id and emp name.

Please send me the code so that i can move to the next step.

Regards,

Dileep