Opening balance in cash Journal

Hello Team,

I have created 3 cash journals.

But will be implemented in our clients company from 01.01.2014.

So transaction from 01.04.2013 to 31.12.2013 have a debit closing balance.

Now from 01.01.2014 client wants to start on production server.

Where do I enter opening balance as on 01.01.2014 in cash journal.

Please guide me.

Regards,

Bhavana