Simple Powerpoint Countdown Timer Req

this is a simple job for a good coder who knows what they are doing. I want to create a simple countdown timer for 10 mins this timer will sit in a powerpoint and will count down from 10 mins. **important:** timer **MUST continue to countdown** as I click through the remaining slides of the presentation until i end. it MUST NOT>>> Restart the 10 min countdown on each new slide. I am not sure what language this needs to be in, but I want it to start in powerpoint seamlessly (no pop ups to confirm exe or anything like that, I just want to click on the 10:00 graphic and it starts) I would like to model the countdown graphic on the Mac/ Iphone graphic on this screen **(without the HOURS**): [login to view URL] /screenshot