Update charts data reference after copying sheet and renaming to a variable name

[twisturwhig]

I created a "template" worksheet, in which users create a copy of said template and rename to a variable name. On the template sheet, there is data and 2 charts that reference the same sheet name as the charts sitting on ( data is not on another sheet). After creating a copy of the sheet, the 2 charts on the new sheet continue to reference the "template" work sheet and the cells contained there. I need a way to update the references for the charts to pull data on the same sheet the charts live despite not knowing the name ahead of time. The charts' sheet references would always be = activesheet.name if this helps. Can anyone help?