InfoPath Dev

Sorry for late reply. It's work .Thanks.

thanks but that won't solve my problem , form should be completed at the beginning of the month for the previous month and saved with the title last month

thanks for reply. I don't understand what will return substring(field1, 0,8)

I'm trying to save a document under the name of the previous month, in submit coonnection for file name I set : substring(today(); 0; 8) , but with this command file has a name 2014-01 , and I need to be called 2014-00 Does anyone know how I pulled this off?