Script Logic functionality

Hi Experts,

I have a requirement based on which I want to know does this Possible by script logic or not? Here is my question :

I have a data in some accounts CATEGORY ACTUAL for a period of 2013.04 . Can it be possible that same data gets copied inCATEGORY FORECAST TIME  2014.05

by script logic??? For example lets say :

                         TIME

                         ACTUAL               FORECAST

                         2013.04                 2014.05 

Account A          100                       100

Account B           20                        20

Like in above example we can see 2013.04 has value 100 & 20 in accounts A & B. What I want is to have same values in 2014.05 like I shown in above example.

So, Please guide me does it possible by script logic? If yes then how we cna do in script.

Thanks

natasha