add support for 2 taxes for my pc repair tracker.

I am wanting to add support for two )2) taxes currently there is only support for one. When making these changes to the application I will need it to be stable. The application is written in php with css style sheets. I have attached in a zip file the pc repair tracker and in this zip it has the instructions on how to set it up and look at it. ( takes less than 5 min to setup) ## Deliverables