Help! Distance per country . From a route in google maps. Can some buddy help me?

Hello. This is for cyclist(s). A tool to calculate trip costs from a selected route in google maps. Hence. trip cost = country average cost usd/km * distance per country.

I found something similar here. but Can some helps me to make it work?. Thanks for your help buddies!.
http://jsfiddle.net/Daggett/zr89r8ws/