Transfer Postings

Hi Experts...

I have the following requirement:

My client has created a Balance Sheet GL without activating the open item management in GL Master. And posted some documents to that GL also. While scrutiny the problem was found. Now i want to activate open item management. For this I have suggested them to create new GL with same parameter + activating the Open Item Management. Now i want the transactions posted to the wrong account to be transferred to the new gl account.

Need your valuable inputs on this...

Thanks

Kiran