change and adapt openbravopos source code nad add few code snippets

Project Description:
I need to adapt openbravo pos source code to adjust for new croatina tax law, developer must must be good in java scripting especially in java to xml.Develper will add few columns or new table in database, he or she will change ticket.info, DataLogicSales.java source file, and add 2-3 code snippets scripts. I will explane projects in details on mail