var mainArray = new Array (
	"--", "Metric system", "",
	"lp100km_fuel", "litres per 100 km", "l/100km",
	"kmpl_fuel", "km per litre", "km/l",
	"--", "U.S. system", "",
	"mpg_fuel", "miles per gallon", "mpg",
	"gp100m_fuel", "gallons per 100 miles", "-",
	"--", "British system", "The only variation from the U.S. system is due to British and U.S. gallons being different",
	"bmpg_fuel", "miles per gallon", "mpg",
	"bgp100m_fuel", "gallons per 100 miles", "-");

var coeffArray = new Array ( 
);