case insensitive xpath assertion?

I have a slew of Jmeter scripts that all are expecting the avalue to come back as it was sent. In this case XML sent with<Name>JOHN</Name> would be returned unmodified in all caps. However our system has changed, and now will modify the data in this element sothat it will be returned as <Name>John</Name>. So now all ofthese jmeter scripts are failing now because they use xpath assertions. Is there a way to modify a xpath assertion so that it is caseinsensitive? And no, I don’t have the option to change the inputdata to “John” to avoid this.

Thanks

Matthew