Display complete Fiscal year total based on fiscal year/period input

Hi ,

My req is , If user enter fiscalyera/ period 005/2007 .the total year colum should display total of year 2007 (001/2007 -012/2007) . we don"t want to use fiscal year input .I have to use fiscal year period to input r . How to write a customer exist for this .I need to pass only year .

Appriciate your response

sree