copy functional location with reference

in sap we can create functional location with reference using: IL01 .

we can create new functional location based on existing functional location. I need create same with using BAPI or Functional modules.

I was see create functional location:BAPI_FUNCLOC_CHANGE,

but I need create new functional location with reference of exist functional location.

please help me it urgent..

Regards

Praveen Cheatpally